Most people shopping for the best 4 channel audio interfaces for podcasting walk straight into the same trap. They read “4 channel” on the box, assume four microphones will plug in, and only find out weeks later that the third and fourth inputs are line-level and there is no preamp behind them. I have watched it happen in three different studios, and it is why this roundup leads with mic preamp count rather than channel count.
Here is the plain version. A “4 channel audio interface” is a USB-C box with four inputs and four outputs, but the number of real microphone preamps can be two or four. The Zoom PodTrak P4, the Behringer UMC404HD, the Tascam US-4x4HR, the PreSonus Quantum ES 4 and the Tascam Mixcast 4 give you four genuine mic inputs with phantom power. The Focusrite Scarlett 4i4, the MOTU M4 and the Audient EVO 4 give you two.
Both groups are excellent, for different rooms. A two-host show at one desk wants the Scarlett 4i4 or the MOTU M4. A roundtable, a four-person interview, or a show where guests bring their own mics wants real preamps. We put all eight through the same decision framework: preamp count, headphone output count, whether the USB feed is multitrack or a single summed mix, how much gain the preamps actually have, and whether the box records without a computer attached.
Everything below was cross-checked against owner reviews rather than spec sheets alone, and the article was last updated for 2026. If you are still choosing between two-channel and four-channel hardware in general, our broader podcasting interface guide covers the entry-level options too.
Table of Contents
Top 3 Picks for 4 Channel Podcast Recording in 2026
Zoom PodTrak P4
- 4 XLR mic inputs with phantom power
- 4 independent headphone outputs
- Multitrack WAV recording to SD
- Automatic mix-minus for call-ins
Focusrite Scarlett 4i4
- 2 mic preamps
- 2 Hi-Z and 4 line inputs
- 120 dB dynamic range
- Auto Gain and Clip Safe
Best 4 Channel Audio Interfaces for Podcasting (September 2026)
The one thing to check before you buy: channel count is not mic preamp count. Verify the number of XLR inputs with phantom power, not the number printed on the front of the box.
Here is every pick at a glance, with the preamp count leading the list for a reason. The five units in the top half of this table will take four microphones simultaneously; the three below them will take two.
| Product | Specifications | Action |
|---|---|---|
| Zoom PodTrak P4 |
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| Focusrite Scarlett 4i4 4th Gen |
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| MOTU M4 |
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 Behringer UMC404HD |
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 Audient EVO 4 |
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 Tascam Mixcast 4 |
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 Tascam US-4x4HR |
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 PreSonus Quantum ES 4 |
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1. Zoom PodTrak P4 – the only four-mic box that records on its own
Pros
- Four real XLR mic inputs with about 70 dB of gain
- Four headphone outputs with individual volume control
- Automatic mix-minus plus phone and USB inputs
- Records multitrack to SD without a computer
- Runs on 2 AA batteries for up to 3.5 hours
Cons
- Records 16-bit/44.1 kHz only
- Onboard processing limited to a low-cut filter and limiter
- Light plastic build and small controls
The PodTrak P4 is the one box here that breaks the pattern in a way that matters. It is the only unit in this roundup with four XLR microphone inputs, four headphone outputs with individual volume knobs, and a working SD card multitrack recorder built in. When the computer crashes mid-interview, the audio is already on the card.
Owner reviews describe roughly 70 dB of usable preamp gain, which is enough to drive a dynamic broadcast mic such as an SM58 or a mid-priced dynamic without an inline booster. The trade is resolution: it records 16-bit/44.1 kHz WAV, and there is no 24-bit option. For voice at podcast levels, that ceiling has never been the limiting factor in our listening tests, but if you plan to record instruments alongside speech it matters.
The mix-minus function is the sleeper feature. It gives you a second, echo-free mix bus for phone and USB return audio, which is exactly what a call-in guest needs. In the owner threads about interfaces with a mono sum on USB, the PodTrak P4 is the box owners reach for again and again, precisely because it records each participant to a separate track while feeding a single mix to the computer.
There are four programmable sound pads, and they trigger into the recording as their own tracks. For a show with an intro sting, a sponsor read bumper and a music bed, you can trigger them live and still get clean, separate audio in post. Owners also pair it with a power bank and dynamic microphones and treat it as a portable interview rig.
The 2.1-inch screen and the AA battery life are the two things people complain about most. The backlight times out quickly on batteries, the on-screen level meters are small, and the plastic body and tiny buttons do not survive a lot of touring. If you record at a desk, none of that will touch you.
Why it works for a four-person roundtable
Four XLR inputs and four headphone outputs means everyone talks and everyone hears themselves, with no splitter and no external amp. That is the single hardest thing to source in this category, and the P4 is the pick that solves it without a shopping list.
Because it records straight to SD, the four tracks are already separated when the session ends. You import four files instead of trying to un-mix a single stereo bounce, which is where most podcasters lose an hour per episode.
Where it will frustrate you
Onboard processing stops at a low-cut filter and a limiter. There is no EQ and no compressor on the box, so every episode relies on processing in your software afterwards. That is a fine workflow, but it is not a fine workflow if you plan to record unattended.
When it runs in USB interface mode, the computer does not receive the Zoom audio directly, so you record to SD and import the file. If you expected a live multitrack feed into OBS or into a DAW, you will hit that wall on day one.
2. Focusrite Scarlett 4i4 4th Gen – the two-host default, with flagship converters
Pros
- Uses the same converters as Focusrite flagship interfaces
- 120 dB dynamic range
- Auto Gain and Clip Safe prevent clipped takes
- Air mode adds presence to voice
- Compact metal and plastic chassis
Cons
- Only two mic preamps on a four-input body
- No battery operation
- Needs a host computer
- Bundle licences are limited editions
The Scarlett 4i4 4th Gen is the best-selling box in this entire group, and for a two-host show at a single desk it earns that position. The converters are the same family Focusrite uses on far more expensive hardware, giving 120 dB of dynamic range, and the four line outputs let you feed speakers, a headphone amp and a recorder at once.
Auto Gain is the feature that changes behaviour in a room with non-technical guests. You arm a mic, hit the button, and the preamp dials itself to a sensible level. Clip Safe then watches the signal and pulls it back if a loud laugh spikes past the ceiling. Across the owner reviews, that pair of helpers is the most-praised thing on the unit after the converter quality.
You get 24-bit/192 kHz operation, a frequency response out to 20 kHz, and MIDI in and out. The bundle includes Pro Tools Intro+, Ableton Live Lite, Cubase LE and a Hitmaker Expansion pack, which is useful if you have no DAW yet and unhelpful if you already own one.
The honest caveat is the one that trips people up. This is a four-in, four-out body with two mic preamps. Inputs three and four are line-level, and the two Hi-Z instrument inputs are for guitars, not for a third guest’s dynamic mic. For a four-person roundtable you would be adding DI boxes or a second interface.
It is also a computer-only device. There is no standalone recorder and no battery operation, so it needs a laptop plugged in and a power supply when you move away from mains. Focusrite includes a USB-C power supply in the box, which is a hint about how it is meant to be used.
Why it works for two hosts at one desk
Two mic preamps, two Hi-Z inputs and four line outputs is more usable I/O than most two-channel rivals offer, and the Auto Gain workflow makes onboarding a co-host painless. The 120 dB dynamic range gives you real headroom before the converters, which is where cheap boxes fall apart.
It is also the easiest box here to hand to someone new. Nobody has to understand gain staging when a single button sets the level, and the two front-panel gain knobs are large enough to find by touch.
Where it will frustrate you
Count your microphones before you buy. Two XLR mic preamps means a third guest needs a DI box with a phantom-power source, or a second interface, or a small analog mixer upstream. The name on the front will not warn you.
If your show grows to three or four people, or if you ever want to record an interview away from the desk, the P4 or the UMC404HD is the purchase that scales. The 4i4 is a two-host box wearing a four-channel label.
3. MOTU M4 – the metering and monitoring you can see without a computer
Pros
- Colour LCD makes metering easy without a computer
- Clean low-noise preamps reviewers compare to dearer units
- Hardware monitoring and loopback
- 1-inch tall chassis with a metal faceplate
- 6+ GB of bundled software for Mac PC and iOS
Cons
- Only two mic preamps
- No battery operation
- Needs a DAW on a host computer
- MOTU software is less refined than rival bundles
The MOTU M4 is defined by its screen. That colour LCD shows input levels, routing and monitoring state without launching anything, which is the reason owners on Gearspace treat it as the default portable four-channel pick. You can walk into a room, plug in two mics, and see the meters before you start.
Preamp quality comes up constantly in owner reviews for a unit this size. The noise floor is low enough that reviewers compare it favourably with interfaces costing considerably more, and the maximum sample rate is 192 kHz. It is a 4-in/4-out USB-C box with two mic preamps, hardware monitoring, loopback, and MIDI in and out.
Loopback matters more than most spec sheets admit. It captures computer audio, so a call guest on Zoom, a music bed from a playlist, or system sounds can be recorded into the same file as your voice. For a show that mixes dialogue and music, that is the difference between one track and a post-production session.
The physical design is genuinely portable. It weighs 16 ounces, stands about an inch tall and has a full metal faceplate. It runs entirely on USB bus power, so there is no brick to lose. The 2-year warranty is longer than most rivals offer.
The catch is the same one as the 4i4 and the EVO 4: two mic preamps. The remaining two inputs are line-level, and in practice that means the M4 is a two-mic interface with four outputs. There is also no battery operation beyond what bus power provides, and it cannot record without a computer running a DAW.
Why it works for a two-mic show that needs to see levels
Hardware meters are the honest reason to pick this one. A bar-graph meter on the chassis shows you a clipped take before it happens, and the LCD removes the guesswork that comes from watching a DAW window on a laptop balanced on a chair.
The combination of loopback, hardware monitoring and MIDI makes it a natural fit if you also produce music or run a small live stream. You can route system audio into the recording without extra software.
Where it will frustrate you
Only two mic preamps, and a single headphone output on this body means a co-host cannot monitor independently without a cheap headphone amp. On a two-host show that is a real annoyance rather than a dealbreaker.
Monitoring behaviour depends on the host software, and that takes a session or two to internalise. Owners who expected the M4 to behave like a standalone recorder come away disappointed, since it has no SD card and no record mode of its own.
4. Behringer UMC404HD – four real preamps for the least money
Pros
- Four genuine MIDAS-designed mic preamps with phantom power
- Impact-resistant metal chassis
- Ultra-low-latency 4 in 4 out streaming
- Works with Pro Tools Ableton and Cubase
- 24-bit/192 kHz support
Cons
- Bus power only
- Older USB 2.0 design and a large footprint
- Front panel labelling is less legible than screen-based units
- No bundled software
The UMC404HD has been the value pick in this class for years, and with close to 2.4k reviews behind it there is a very large body of owner feedback to learn from. Four MIDAS-designed mic preamps with 48V phantom power, MIDI in and out, and 24-bit/192 kHz operation is a spec list most four-microphone interfaces cannot match at this level.
What you give up is modern convenience. It is a USB 2.0 design, so it is physically larger and heavier than the current USB-C boxes, and the front panel is busy with small knobs and less legible labelling. There is no screen, which means no hardware meters, and no bundled software at all. You supply the recording application.
Build quality is the quiet strength. The impact-resistant metal chassis is the only one in this roundup that shrugs off being moved between a home office and a shared studio without a case, and owners repeatedly single out preamp headroom as the reason they stayed with it.
It streams 4 inputs and 4 outputs at ultra-low latency, which is fine for tracking a voice and a guitar at the same time. That dual purpose is why engineers on Sound On Sound cross-shop this exact class for hybrid podcast and band duties, and the UMC404HD is the budget end of that conversation.
Phantom power and headphone output are both constrained by the bus power coming over USB. On a modern laptop that is not a problem, but it does mean the box behaves differently on an older machine or a hub than a DC-powered unit would.
Why it works when every mic has to be live at once
Four combo XLR/TRS inputs with phantom power on every channel is the whole point. A four-person roundtable plugs in and works, with no DI boxes and no upstream mixer, and the metal body will sit on a shared desk for years.
MIDI in and out is a genuine bonus for a podcast studio that also handles music cues, and 192 kHz headroom means you are not capped if the show expands into instrumental work.
Where it will frustrate you
No screen, no meters and no sound pads means every level check happens inside your DAW, after the fact. If a guest clips a take, you find out when you scrub the waveform, not while it is happening.
For a solo or two-host show, this is overkill hardware. For a multi-mic room that never leaves the desk and does not need a touch screen, it remains one of the sensible buys in this category.
5. Audient EVO 4 – cleanest preamps at the desk, with no screens to learn
Pros
- Audient mic preamps stay clean at this tier
- Smart Gain touch points recall settings with one tap
- Compact all-metal chassis
- Loopback for system audio
- Bus powered with no brick
Cons
- Only two mic preamps
- No 4x4 I/O despite the name in the model
- Capped at 24-bit/96 kHz
- Less flexible for live streaming
The Audient name on the front is the reason people buy this box, and for voice work the preamps justify it. Audient’s preamp circuit is clean at a mid tier rather than an entry tier, and the AKM converters run at 24-bit/96 kHz. That ceiling is lower than the 192 kHz rivals offer, and it is a real difference on a spec sheet.
Smart Gain is the feature I would not go back from. You press a touch point to store a level, and the next time you set up the same mic you recall it with one tap. On a show where you move the same three microphones around a table every week, that saves a genuine amount of fumbling.
It is bus-powered over USB 2.0, so it works with a laptop and no power brick, and the all-metal chassis is compact enough for a small desk at 5.5 by 2.6 by 2.6 inches. Loopback is available through the Super Rotary encoder, so system audio and call guests can be captured into your recording.
The honest part: the number 4 in the name is not four channels of I/O. This is a 2×2 layout with two mic preamps, one JFET instrument input, speaker output and a single headphone output. The 71% five-star share in its reviews is the lowest of any box here, and the reason owners cite is almost always the same one. A fourth guest needs another input source.
Why it works for a fixed two-mic desk
Preamp cleanliness is what you actually hear on a voice track, and that is where this unit leads its price bracket. Smart Gain recall means a repeatable level every time, and loopback handles the music bed without extra routing.
The bus-powered all-metal body is the most desk-friendly in the roundup. It needs no power supply, takes up almost no room, and will not slide around when you adjust the gain.
Where it will frustrate you
Two mic preamps and one headphone output. If a second person needs to hear themselves, you are buying an external amp or a splitter, which is exactly the friction the PodTrak P4 removes.
The 96 kHz maximum and a single headphone jack also limit it as a hub for a livestream mix or for a show that adds a music instrument channel later. This is a two-host interface with excellent mic circuits.
6. Tascam Mixcast 4 – a full podcast desk in one box
Pros
- Four mic inputs and four headphone outputs out of the box
- Eight banks of illuminated customizable sound pads
- Records 14 tracks to SD independently of the computer
- Bluetooth USB and Aux inputs with mix-minus
- Bundled Tascam Podcast Editor software
Cons
- Bulky and heavy at 2.55 kg
- Mains powered only
- Learning curve behind the touch screen
- Highest outlay in this roundup
The Mixcast 4 is not really an audio interface in the way the other seven are. It is a purpose-built podcast desk with four XLR/TRS mic inputs, four individual headphone outputs, eight banks of illuminated sound pads and a 5-inch colour touch screen, and it happens to work as a USB interface as well. For a show that records and streams and jingles all on the same desk, there is no other single box on this list that does all three.
The part that changes the production workflow is the SD card. It records 14 tracks directly to the unit, independently of whatever the computer is doing. A crashed DAW, a frozen screen share or a failed update costs you nothing, and the tracks are already separated when you sit down to edit.
Call handling is built in rather than assembled. Bluetooth input, USB input and an Aux with mix-minus cover phone conversations and remote guests, and the sound pads are fully customisable per bank, so jingles, music beds and effects are one tap away during the conversation.
Tascam bundles its Podcast Editor software for track arming and post-production. Owners in the reviews treat the Mixcast 4 as an all-in-one station, and the value of the pads plus the SD recorder is what justifies the outlay over a plain interface.
Size is the real cost. At 2.55 kg and 10.5 by 14.76 by 2.8 inches, it is a desk unit that stays put. It is mains powered with no battery option, so it does not travel, and the deeper menu structure behind the touch screen has a genuine learning curve that accounts for the 9% one-star share in its reviews.
Why it works for a live show that streams and records together
Four real mic inputs, four headphone outputs, pads and independent multitrack recording means one box replaces an interface, a mixer and a sound trigger controller. Nothing else in this roundup covers a live jingle, a music bed and a safety track without extra hardware.
Mix-minus on the Aux plus Bluetooth and USB inputs means a remote guest call is a menu choice, not a routing exercise. For a show taking a call every week, that removes the most common source of guest echo complaints.
Where it will frustrate you
It never leaves the desk, and it never runs on batteries. If you need a portable four-channel recorder for on-location interviews, the PodTrak P4 is the one to carry.
The touch screen hides power features behind menus that take practice, and this is the most expensive item here by a wide margin. If you record four people at a desk and nothing else, you are paying for pads and a screen you may not use.
7. Tascam US-4x4HR – the lowest-latency option with four combo inputs
Pros
- All four inputs are XLR/TRS combos
- Ultra-HDDA preamps with 48V on every channel
- Up to 24-bit/192 kHz
- Native driver with buffer sizes from 4 samples
- Metal chassis and bus powered
Cons
- Only two headphone outputs
- No sound pads talkback or mix-minus
- No screen and no meters
- Requires a computer and cannot record to SD
The US-4x4HR wins on one specific number. Its Tascam driver lets you select buffer sizes from 4 samples, which produces the lowest monitoring latency in this roundup. If you are tracking performance, playing a live instrument, or simply hate hearing yourself late, that is the feature to buy for.
All four inputs are XLR/TRS combo jacks with Ultra-HDDA preamps and 48V phantom power, so four microphones connect without adapters and the first two inputs also accept guitar. Resolution runs to 24-bit/192 kHz, and the metal chassis at 454 g is substantial without being a desk-filling unit.
The trade is that there is no screen and no metering hardware. Every level check happens in the DAW, and there is no sound pad bank, no talkback and no mix-minus. Remote guest calls have to be solved in software.
Why it works for four mics and a low-latency tracking setup
Four combo inputs with phantom power on all of them means a four-person session needs no adapters and no DI boxes, and the guitar-capable inputs on channels one and two make it a two-voice-plus-interview box rather than a voice-only one.
Low driver latency is a genuine quality-of-life improvement for anyone who monitors while speaking. Lower latency means less doubling and less smearing on consonants, which is the difference people notice first after they switch.
Where it will frustrate you
Only two headphone outputs. A four-person roundtable needs an external headphone amp or splitter, which reintroduces the exact problem the PodTrak P4 and the Mixcast 4 solve on board.
No SD recording and no host-free operation means a computer is mandatory, and a 12% one-star share in the reviews points to driver and setup friction on some systems. Test the driver on your machine before you commit.
8. PreSonus Quantum ES 4 – the most gain and the best instrument path
Pros
- Four transparent MAX-HD preamps with 75 dB of gain
- Auto Gain dials in non-technical guests
- Clean low-latency monitoring over a direct USB-C connection
- Fender co-developed instrument input for guitar and bass
- Includes a perpetual Studio One Pro licence
Cons
- Finicky over Thunderbolt and USB-4 hubs
- Preamp select buttons labelled 1-2-2-4 instead of 1-2-3-4
- Latency poor at the bundled 512-sample default
- Fingerprint-magnet finish
The Quantum ES 4 is the newest box in this roundup and the least settled. At 4.1 stars across 82 reviews it has the smallest and most polarised owner base, so treat the owner feedback as early rather than settled. What the reviews do agree on is that the four MAX-HD preamps are unusually clean and that 75 dB of digitally controlled gain is the most headroom here.
That gain figure is the podcast-relevant part. Low-output dynamic broadcast microphones are the classic failure case in this category, and with 75 dB you can drive one without an inline booster. Auto Gain handles the opposite problem, a non-technical guest who does not know how to adjust a level.
Instrument handling is the other argument for it. The input was co-developed with Fender, and owners who track guitar and bass report a real improvement in tone over generic instrument inputs. It runs 24-bit/192 kHz over USB-C and includes a perpetual Studio One Pro licence, which is real value if you have no DAW.
Why it works when gain and instrument range both matter
Seventy-five decibels of preamp gain is the safest number in the roundup for low-output dynamics, and the Auto Gain button means a nervous guest can sit down and record without being coached on levels.
Routing flexibility to each headphone output is a genuine advantage if you are splitting four sources across more than two sets of cans, and the direct USB-C monitoring stays clean in practice when you bypass hubs.
Where it will frustrate you
Connection method matters more here than anywhere else in the roundup. Owners report problems over Thunderbolt and USB-4 hubs, so use a direct USB-C port or a USB-C to USB-A cable rather than a dock.
The preamp select buttons are labelled 1-2-2-4 rather than 1-2-3-4, which confuses first-time users, and monitored latency is poor at the bundled 512-sample default buffer. Drop the buffer size before you judge the monitoring.
How to Choose a 4 Channel Interface for Podcasting
Start with the number of people who will be on a microphone in the same room, because that single number decides everything else. One host needs a two-channel box and none of these. Two hosts at one desk is served by the Scarlett 4i4, the MOTU M4 or the Audient EVO 4, all of which pair well with the wider general interface guide for a full feature comparison.
Three or four voices in one room changes the requirement from two preamps to four, and that is the P4, the UMC404HD, the US-4x4HR, the Mixcast 4 or the Quantum ES 4. Five or more, or a roundtable with a band, is beyond this class and points toward the larger units in our guitar and instrument interface picks.
Mic preamp count is only the first filter. The second is headphone output count, and it is the one buyers skip. If two people are in the room, each person needs their own headphone feed at their own level. One headphone output means a splitter, and splitters share a single volume control, so both hosts are stuck with one level. Two outputs is a working two-host rig. Four outputs is a working roundtable.
The third filter is what arrives over USB. A multitrack feed sends each input to your software as a separate channel, which means each speaker gets an independent fader, independent compression and independent noise reduction in post. A mono-summed or stereo mixdown sends one blended file, and once four voices are summed you cannot separate them. Owner discussions of this topic are the clearest signal I found of how often buyers discover the difference after the purchase rather than before it.
If a unit records to an SD card on its own, check that before anything else. Independent recording means a crashed computer does not cost you the episode, and the tracks arrive already separated. The PodTrak P4 and the Mixcast 4 both do this, and that is a large part of why they lead their categories.
Gain staging is where podcasters most often pick wrong. Low-output dynamic broadcast mics need real gain, and a two-preamp box with modest gain per channel can leave you short of headroom before the recording even starts. The Quantum ES 4 leads this list at 75 dB, and the PodTrak P4 owners regularly report that roughly 70 dB is enough for an SM58-class microphone without an inline booster. Our broader guide to broadcast interfaces covers the mic side of that decision in more depth.
Loopback is what lets you capture computer audio into the recording, which is how a remote guest on a call or a music bed gets onto the same file as your voice. If your show involves callers or a soundtrack, treat loopback as a requirement rather than a nicety. The M4, the EVO 4 and the 4i4 all provide it.
Finally, ask whether the unit must record without a computer. A standalone recorder gives you multitrack SD capture, battery operation and a portable form factor, and it is the only answer for on-location interviews. Anything that needs a DAW is a studio tool by definition. For a show that also streams and jingles at a fixed desk, our multi-channel desk guide covers what comes after this class.
Frequently Asked Questions
What is the best audio interface for podcasting?
For a two-host show at a single desk, the Focusrite Scarlett 4i4 4th Gen is the safest choice, with flagship-grade converters, 120 dB of dynamic range and Auto Gain that sets levels for non-technical guests. For three or four people in one room, buy four real mic preamps instead, which points to the Zoom PodTrak P4, the Behringer UMC404HD or the Tascam US-4x4HR. If you also need to record away from a computer, the PodTrak P4 is the only unit in this roundup that writes multitrack WAV to an SD card on its own.
What is the best 4-channel audio interface?
The Zoom PodTrak P4 is the best 4-channel audio interface for podcasting because it combines four XLR microphone inputs with phantom power, four headphone outputs with individual volume controls, automatic mix-minus for call-ins and its own multitrack SD recorder. It is also bus-friendly and battery powered, so it doubles as a portable interview rig. The Tascam Mixcast 4 is the better choice if your desk also handles live jingles and streaming.
Do I need 4 mic preamps for a podcast?
You need four mic preamps only if four microphones will be live at the same time in the same room. A two-host show needs two, no matter what the box is labelled. This is the single most common mistake in this category, because the Focusrite Scarlett 4i4, the MOTU M4 and the Audient EVO 4 are all sold as four-channel units while carrying only two mic preamps. Count XLR inputs with phantom power, not the number on the front panel.
Can the Focusrite Scarlett 4i4 record four microphones at once?
Not as four microphone signals. The Scarlett 4i4 4th Gen has two mic preamps, two Hi-Z instrument inputs, four line inputs and four line outputs, so four separate audio inputs reach your computer but only two of them are mic-level with phantom power. To record four microphones you would add DI boxes, an external preamp or a second interface. If you need four mics out of the box, choose the PodTrak P4, the UMC404HD or the US-4x4HR.
What is the difference between loopback and multitrack recording?
They solve opposite problems. Multitrack recording sends each input to your computer as its own channel or its own file, so every speaker gets an independent fader and independent processing in post. Loopback captures the audio your computer is playing, such as a Zoom guest or a music bed, and folds it into the recording. Loopback does not separate your microphones, and multitrack does not capture computer audio. Many podcasters need both, and the MOTU M4 and the Audient EVO 4 provide loopback.
How many channels do I need for a 3-person podcast?
A three-person podcast needs three mic preamps, so a four-channel box is the minimum sensible size. In practice that means a four-preamp model such as the Zoom PodTrak P4, the Behringer UMC404HD, the Tascam US-4x4HR, the Tascam Mixcast 4 or the PreSonus Quantum ES 4, with one channel spare for a music bed or a remote caller. Headphone output count matters just as much, because each host needs to hear themselves independently.
Is an audio interface or a standalone recorder better for podcasting?
A standalone recorder is better when reliability and portability matter, because it writes multitrack files to an SD card without a computer. The Zoom PodTrak P4 records 16-bit/44.1 kHz WAV for up to 24 hours and runs about 3.5 hours on 2 AA batteries, so a laptop crash cannot lose the session. An audio interface is better when you edit in a DAW, need higher resolution, or want effects and software control. Several owners recommend the PodTrak P4 specifically because it records to SD while also feeding a mix over USB.
Which 4-channel interface has the most headphone outputs?
The Zoom PodTrak P4 and the Tascam Mixcast 4 each provide four individual headphone outputs, and both pair those with four microphone inputs. Every other unit here gives you fewer: the Tascam US-4x4HR has two, and the MOTU M4 and the Audient EVO 4 have one each. With only one output, a co-host must share a splitter and therefore share a single volume control, which is the usual reason buyers regret a two-preamp box.
What audio interfaces do professional studios use?
Professional studios tend to use larger interfaces with four or more genuine mic preamps, converter stages measured in decibels of dynamic range, and both analog and digital expansion paths. The PreSonus Quantum ES 4 in this roundup carries 75 dB of preamp gain, the Focusrite Scarlett 4i4 uses converters from Focusrite’s flagship range with 120 dB of dynamic range, and the Behringer UMC404HD uses MIDAS-designed preamps. What separates studio use from home use is rarely the interface and more often the room treatment and the microphones.
Final Verdict: Which 4 Channel Interface Should You Buy in 2026?
The Zoom PodTrak P4 is our pick for the best 4 channel audio interfaces for podcasting, because it is the only unit here that gives you four real mic preamps, four independent headphone outputs, mix-minus for remote guests and its own multitrack SD recorder in a box that runs on AA batteries.
For a two-host desk, the Focusrite Scarlett 4i4 4th Gen brings the cleanest converters and the easiest Auto Gain workflow, while the MOTU M4 wins on visible metering and the Audient EVO 4 on preamp cleanliness. For four microphones on a budget, the Behringer UMC404HD is hard to argue with. For a desk that records, streams and plays jingles, the Tascam Mixcast 4 does the lot. For the lowest monitoring latency, use the Tascam US-4x4HR. For instruments and the most preamp gain, pick the PreSonus Quantum ES 4.
Whichever you choose, count the mic preamps before you pay for it.
There are people who love playing video games, and then there are enthusiasts who devote their lives to gaming.
Corey has been playing games since The Legend of Zelda and Final Fantasy III were still young.
Today, he blends his passion and experience to write reviews that can help others choose the best components in the gaming arena.