We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-26 · 7 min read · Independent comparison
If you want one box that records the whole podcast and gives four people their own headphone feed, choose Zoom PodTrak P4; if you already own a recorder or mixer and just need a clean way to get four headphone feeds out of it, choose Superlux HA4D.
• Zoom PodTrak P4 — biggest strength: It's a complete podcast studio in one small box — 4 XLR mic inputs with phantom power, 4 headphone outputs with individual volume control, Sound Pads, mix-minus for phone interviews, and even a 2-in/2-out USB audio interface mode.
• Zoom PodTrak P4 — biggest trade-off: It's a recorder first, so it's doing a lot at once, and it runs on 2 AA batteries for up to 3.5 hours — which means battery management matters on long sessions.
• Superlux HA4D — biggest strength: It does one job very well: four independent 3.5mm headphone outputs, each with its own volume knob and mute switch, powered over USB-C from a wall charger, power bank, or PC.
• Superlux HA4D — biggest trade-off: It's a headphone amplifier, not a recorder. It has no mic inputs, no recording, and no built-in battery — it needs a source and a USB power source.
• Who the Zoom PodTrak P4 is for: The solo podcaster or small group who wants to capture four mics, feed four pairs of headphones, and handle phone or USB guests without buying a rack of separate gear.
• Who the Superlux HA4D is for: The podcaster or teacher who already has a recorder, mixer, or interface with a single headphone out and needs to split that into four controllable feeds.
The PodTrak P4 is the product you buy when you want the podcast to happen inside one device. It has four XLR mic inputs with phantom power, so condenser mics that need power are covered, and Zoom's preamps provide up to 70dB of gain — enough headroom for demanding, low-output microphones. Everything can be recorded on separate tracks, which is the difference between "fix it in post" and "re-record the whole thing." The four headphone outputs each get their own volume control, which sounds small until you've sat next to a guest who wants their feed twice as loud as yours.
The features that make it a podcast tool rather than a generic recorder are the ones built around remote guests. The TRRS jack lets you bring a phone call into the session, and the Mix-Minus function automatically removes your own audio from the call feed so the person on the other end doesn't hear themselves echoed back. If you'd rather use your computer and a conferencing app, you can connect over USB instead — and the P4 can also run as a 2-in/2-out audio interface for recording to a computer or mobile device, or for live streaming. The four programmable Sound Pads trigger music, ads, jingles, or pre-recorded clips, with 11 presets built in or your own files loaded.
In my opinion, the P4 is the right call for a podcaster who wants to plug in mics, plug in headphones, and hit record — especially anyone doing interviews with remote callers. Skip it if you already have a recorder you love and only need more headphone feeds; you'd be paying for a whole studio you don't need. Also think twice if your sessions run very long away from power, since the AA battery life is rated at up to 3.5 hours and you can't rely on it for an all-day marathon without spares or USB power.
The HA4D is a four-channel headphone amplifier, and that's the whole point. It takes one audio source and gives up to four people their own 3.5mm output, each with a dedicated volume knob and an individual mute switch. That mute switch matters more than it looks on paper: in a group recording, a co-host can silence their own feed instantly without touching anyone else's level, which keeps the session moving instead of turning into a volume-knob negotiation.
The audio side is where Superlux leans on its engineering story. The HA4D is built around high-quality circuitry with a 100 dB dynamic range and ultra-low distortion, so the signal stays clean and detailed even when you push the output level. It's also genuinely portable — it fits in a gig bag — and it's powered over USB-C, so a power bank, a wall charger, or a PC all work. No proprietary adapter, no wall wart you'll forget at home. Superlux even flags a practical detail: to avoid ground-loop hum or buzz, power the HA4D from a separate power bank or USB wall charger rather than the same laptop you're using for audio. That's the kind of advice that comes from a company thinking about real setups.
Who should buy it? Podcasters with a co-hosted or group format, streamers, and classroom or group-recording setups where several people need to monitor the same source. It's also the obvious pick if your recorder or interface has one headphone jack and you've been daisy-chaining splitters. Who should skip it? Anyone who needs to record. There are no mic inputs here, no tracks, no Sound Pads, no battery of its own — if you don't already have a source to feed it, the HA4D has nothing to amplify.
• Best for recording the podcast itself → Zoom PodTrak P4. Four XLR inputs with phantom power, multi-track recording, and a 2-in/2-out USB interface mode.
• Best for adding headphone feeds to gear you already own → Superlux HA4D. One source in, four independent 3.5mm outputs with volume and mute.
• Best for remote and phone interviews → Zoom PodTrak P4. The TRRS input plus automatic Mix-Minus handles call-in guests without echo or feedback.
• Best for instant mute and personal level control → Superlux HA4D. Every channel has its own knob and its own mute switch.
• Best for battery-powered, cable-free sessions → Zoom PodTrak P4. It runs on 2 AA batteries for up to 3.5 hours.
• Best for USB-C power flexibility → Superlux HA4D. Power it from a power bank, wall charger, or PC — just keep it off the laptop you're recording with to avoid hum.
• Best for grabbing and going light → Superlux HA4D. It's a compact, lightweight box built for gig bags and mobile setups.
• Best for a one-box studio under 130 g → Zoom PodTrak P4. It covers mics, monitoring, sound effects, and interface duties in a single unit.
If I were starting a podcast from scratch today, I'd buy the Zoom PodTrak P4. It replaces a recorder, a headphone amp, and a phone-hybrid setup with one box, and the Mix-Minus feature alone earns its place for anyone doing remote interviews. I'd only pick the Superlux HA4D if I already owned a recorder or interface I was happy with and my real problem was that four people needed to hear it — in that case the HA4D is the cleaner, more focused answer, and the per-channel mutes are a genuinely useful touch during live sessions. Both are worth checking the current price on Amazon before you commit, since that's the one variable that can flip the decision.
FAQ
why do you need headphones for a podcast
how to set up headphones for podcast
You need a source with a headphone output and enough feeds for everyone. On the PodTrak P4, you plug headphones straight into its four outputs and set each person's level. With the HA4D, you run your source's headphone output into it and then hand out the four 3.5mm outputs, powering the unit over USB-C — ideally from a separate charger to avoid ground-loop hum.
what is the best headphones for podcasting
The data sheets here describe the gear feeding your headphones, not the headphones themselves, so the honest answer is that it depends on your setup. What matters is having a clean, controllable feed: the PodTrak P4 provides four individually adjustable headphone outputs, and the HA4D provides four channels with 100 dB dynamic range and ultra-low distortion.
what are good headphones for podcasting
Look for a closed-back design so mic bleed stays out, and match the impedance to your output. The practical variable is the monitoring chain: the P4's 3.5mm headphone jack and four outputs, or the HA4D's four 3.5mm outputs with per-channel volume and mute, both give you the control that makes any decent pair of headphones usable in a group recording.
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