We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-24 · 7 min read · Independent comparison
If you want wireless closed-back studio headphones for tracking, editing and everyday listening, choose AKG K361-BT; if you need a complete desktop recording rig with four mic preamps and a pair of closed-back monitor headphones in the box, choose PreSonus Quantum ES 4. This is a headphone-versus-interface matchup, so the "closed back studio" thread runs through both picks in very different ways.
• AKG K361-BT biggest strength: a genuine closed-back over-ear studio headphone with 50 mm dynamic drivers, a 20 Hz–20 kHz range, 32 ohm impedance and Bluetooth 5 wireless plus a 3.5 mm jack — a single tool for monitoring and casual listening.
• AKG K361-BT biggest trade-off: it's one headphone, not a recording system. There are no preamps, no converters, no inputs — it only plays back what something else feeds it.
• PreSonus Quantum ES 4 biggest strength: a 4x4 USB-C interface with four MAX-HD mic preamps, +75 dB of gain, 24-bit/192 kHz conversion, 16 ADAT I/O, S/PDIF, 10 line outs, 2 reamp outs and a full-color screen — plus closed-back Polsen headphones in the bundle.
• PreSonus Quantum ES 4 biggest trade-off: it's a desktop, computer-tethered device. You need a Mac, Windows, iOS or Android host, and you don't get wireless freedom or a battery-powered headphone.
• Who each pick is for: AKG K361-BT for the person who mainly needs one honest closed-back headphone; PreSonus Quantum ES 4 for the person building a recording setup and wanting headphones included.
The K361-BT is, at its core, a closed-back over-ear headphone. That matters more than anything else on the sheet. A closed enclosure means the cups seal around your ears, which keeps sound in and outside noise out — the reason closed-back designs are the default for tracking vocals, layering takes in a shared room, or listening on a train without leaking your mix to everyone around you. The foam earpads and over-ear fit are built around that seal, and the whole thing weighs 219 g, so it's light enough to wear through a long editing session.
On the inside, AKG specifies 50 mm dynamic drivers, 32 ohm impedance, and a 20 Hz–20 kHz frequency range. That 32 ohm figure is the practical one: low-impedance headphones are easy to drive, so a phone, tablet or laptop headphone output can push them without a separate amp. The 15 Hz low-end extension figure and the 20 kHz ceiling tell you this is a full-range design aimed at hearing the whole picture, not a bass-boosted consumer toy.
The wireless side is where this model separates itself from a plain studio headphone. Bluetooth 5 with a claimed 24-hour average battery life means you can move between the desk and the couch without unplugging anything, and a 3.5 mm jack is there for wired listening when you want it. Media controls sit on the headphone itself, and a carrying case is included — a 59 g hard-ish shell that makes it a realistic travel companion.
Who should buy it: producers and musicians who need one closed-back headphone for tracking and reference listening, students, commuters, and anyone who wants studio-flavored sound without being chained to a desk. Who should skip it: anyone who needs to actually record microphones or instruments — there is no interface here, no inputs, no phantom power, no converters. It's the monitoring end of the chain, not the chain itself. Noise control is listed as sound isolation, which is the passive kind you get from a closed cup — not active noise cancellation, so don't expect it to erase a plane engine.
The Quantum ES 4 is a different animal entirely: a 4x4 USB-C desktop audio interface aimed at producers, musicians and creators. The headline specs are the four MAX-HD mic preamps with +75 dB of gain — that's a lot of clean gain, which is exactly what low-output dynamic and ribbon mics need. There are front-facing instrument inputs for guitar and bass, and they were codeveloped with Fender engineers, which tells you the Hi-Z input path was treated as a first-class feature rather than an afterthought.
Conversion runs at 24-bit/192 kHz, and there's a DSP monitor mixer with loopback — handy for streaming, podcasting or routing system audio into a recording. Around the back you get 16 channels of ADAT I/O, S/PDIF I/O, 10 line outs, 2 reamp outs and 2 headphone outs. Auto Gain and 48V phantom power are onboard, and a full-color high-resolution screen handles metering and setup without making you squint at a laptop. It records to Mac, Windows, iOS and Android, so a phone or tablet is a legitimate host.
The bundle is the part that ties this back to the headline topic. PreSonus ships the ES 4 with a pair of Polsen HPC-A30 closed-back studio monitor headphones and XLR cables. Closed-back matters here for the same reason it matters on the AKG: when you're tracking a vocalist or a guitarist in the same room as the mic, an open-back headphone bleeds into the take. A closed cup keeps the click track and backing mix where it belongs. The included headphones make this a working setup out of the box — interface, monitoring, cables.
Who should buy it: anyone building a home studio who needs to record multiple mics at once, podcasters, singer-songwriters who want instrument inputs up front, and anyone who wants a screen-and-knob workflow instead of menu diving. Who should skip it: if you only need headphones, this is a lot of hardware you'll never use, and it's tethered — no Bluetooth, no battery, no wireless listening. It also assumes a host device. There's a limited 2-year manufacturer warranty on the interface.
• Best for wireless listening → AKG K361-BT. Bluetooth 5 and a 24-hour average battery life, with a 3.5 mm jack as backup.
• Best for recording microphones → PreSonus Quantum ES 4. Four MAX-HD preamps, +75 dB gain, 48V phantom power.
• Best for guitar and bass tracking → PreSonus Quantum ES 4. Front-facing instrument inputs codeveloped with Fender engineers, plus 2 reamp outs.
• Best for commuting and travel → AKG K361-BT. 219 g, foldable-feeling light build, carrying case included, closed cups for isolation.
• Best for multi-channel expansion → PreSonus Quantum ES 4. 16 ADAT I/O and S/PDIF I/O open the door to outboard gear later.
• Best for hearing your mix on the move → AKG K361-BT. No host device, no cable, no software needed.
• Best for a studio starting from zero → PreSonus Quantum ES 4. Interface, closed-back headphones and XLR cables arrive together.
• Best for simplicity → AKG K361-BT. One device, one job. The ES 4 asks you to learn a mixer.
For most people reading a "closed back studio" comparison, the honest answer is that these two products solve different problems. If I had to pick one for a reader who just wants a closed-back headphone they can wear while tracking and then keep on for the walk home, I'd buy the AKG K361-BT — the 32 ohm, 50 mm driver design, Bluetooth 5 and 24-hour battery cover the widest range of daily situations. If you're actually recording — mics, guitars, multiple sources — I'd buy the PreSonus Quantum ES 4, because a headphone can't capture anything and this bundle hands you a working signal chain including closed-back monitoring. Check the current price on Amazon before you commit; both sit in very different budget brackets and the value case depends on which job you're hiring for.
what are closed back studio headphones
Closed-back studio headphones have sealed earcups that block outside sound and keep your audio from leaking out. That makes them the standard choice for recording, because an open design bleeds into a live microphone. Both products here involve a closed-back headphone: the AKG K361-BT itself, and the Polsen HPC-A30 included with the PreSonus bundle.
what is open back studio headphones
Open-back headphones have vented earcups, so air moves freely behind the driver. The trade-off is the mirror image of a closed design: more leakage, less isolation. Neither product on this page is open-back — the AKG K361-BT and the bundled Polsen HPC-A30 are both closed, which is why they suit tracking work.
what are the best closed back studio headphones
There's no single answer, because "best" depends on whether you need wireless freedom or a recording chain. In my opinion, if you want one closed-back headphone that works wired and wirelessly, the AKG K361-BT is the pick here with its 50 mm drivers, 32 ohm impedance and 24-hour battery life. If you need closed-back monitoring as part of a full recording setup, the PreSonus Quantum ES 4 bundle covers that role.
do I need an audio interface if I already have studio headphones
Yes, if you want to record anything. Headphones only play back audio — they have no inputs, preamps or converters. The AKG K361-BT can't capture a microphone or guitar. The PreSonus Quantum ES 4 provides four mic preamps, instrument inputs, 48V phantom power and 192 kHz conversion, which is what actually gets sound into your computer.
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See also: Shure SRH1540 vs Audio-Technica ATH-WB LTD Closed-Back, JBL Quantum 600 vs Corsair HS70, Back Bay Audio Mini vs AFGHOA USB C Headphone