How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a complete multi-person studio monitoring setup in one box, choose Rockville PRO-M50; if you need to restore or upgrade the comfort of a pair of beyerdynamic DT 700 PRO X headphones you already own, choose beyerdynamic EDT 700.
• Rockville PRO-M50 — biggest strength: it's a full kit, not a single item. Four closed-back studio headphones plus a four-channel amp with independent volume and stereo/mono switching per channel.
• Rockville PRO-M50 — biggest trade-off: it's bulky and purpose-built for shared, wired studio work. Four headphones, an amp, cables and cases add up (the package ships at roughly 7 pounds), so it's not a grab-and-go single-listener solution.
• beyerdynamic EDT 700 — biggest strength: soft memory foam wrapped in breathable velour, designed as a direct-fit replacement for the DT 700 PRO X, with fleece pads and a clamping ring included for a tool-free swap.
• beyerdynamic EDT 700 — biggest trade-off: it does one narrow job. It's an ear pad set for one specific headphone model — it makes no sound on its own and won't fit anything outside the DT 700 PRO X.
• Who each pick is for: Rockville PRO-M50 for producers, podcasters, bands and teachers who need several people listening at once; beyerdynamic EDT 700 for an existing DT 700 PRO X owner whose pads are worn, flattened or uncomfortable.
The PRO-M50 is a closed-back, over-ear headphone built around 40mm neodymium drivers, and the kit pairs four of them with the RHPA4 amplifier. That combination is the whole point. The headphones are wired, terminate in a gold-plated 3.5mm plug with a ¼" adapter included, and come with detachable coil cables, a hard travel case each, plus interchangeable suede and leather ear pads so each listener can pick the fit they prefer. The rated impedance is 32 ohm and the frequency range is listed at 10 Hz–25 kHz, which is the kind of spec sheet you'd expect from monitoring gear rather than casual listening cans.
The RHPA4 is what turns four headphones into a session tool. It drives up to four pairs with its own volume control and a stereo/mono switch on every channel, and each channel carries dual outputs — one ¼" and one 3.5mm — so up to eight headphones can be connected at once. It has both ¼" and 3.5mm inputs and outputs, a metal housing, an LED power indicator, and it runs bus-powered from USB with a cable and charging brick included, so a power bank works too.
Buy it if you're tracking a band, running a podcast with multiple guests, teaching a small class, or doing anything where several people need to hear the same feed and control their own level. Skip it if you're a single listener who wants one pair of headphones for commuting or casual listening — you'd be paying for an amp and three spare pairs you won't use. In my opinion, this is a collaboration kit first and a personal headphone second.
The EDT 700 is a replacement ear pad set for the beyerdynamic DT 700 PRO X. That's it — and that focus is exactly why it's worth considering. The pads are velour in grey, which is the standard version, and velour is chosen here for two reasons: it's supple against the skin and it allows a high level of air circulation, so your ears stay cooler over long sessions than they would with a sealed, non-breathable material. Underneath the velour sits soft memory foam, which is what gives the pad its comfort and helps it hold its shape rather than collapsing flat.
Fitting is deliberately simple. The set includes two fleece pads and one clamping ring, and beyerdynamic states it can be self-assembled without additional tools — no trip to a repair shop, no soldering, nothing exotic. It's compatible with the DT 700 PRO X and nothing else, so this is not a universal pad you can stretch onto whatever headphones you happen to own.
Buy it if you already have DT 700 PRO X headphones and the pads have gone flat, cracked, or simply stopped feeling comfortable — or if you want a spare set on hand before the originals wear out. Skip it entirely if you don't own that specific model, because there is no other use for it. And skip it if what you actually want is a new pair of headphones; this is maintenance, not an upgrade to a different sound.
• Best for recording a whole band at once → Rockville PRO-M50. Four headphones and a four-channel amp with per-channel volume is a complete, working setup.
• Best for replacing worn pads on DT 700 PRO X → beyerdynamic EDT 700. It's built specifically for that model and installs without tools.
• Best for breathable, cool long-session comfort → beyerdynamic EDT 700. Velour plus memory foam is designed around air circulation and sustained wear.
• Best for flexible routing and level control → Rockville PRO-M50. Independent volume and stereo/mono switching on every channel, with dual ¼"/3.5mm outputs per channel.
• Best for mobile or power-bank use → Rockville PRO-M50. The RHPA4 is bus-powered over USB, so it doesn't need a wall outlet.
• Best for a single listener with one pair of headphones → neither, honestly. The Rockville kit is overkill for one person, and the EDT 700 only serves DT 700 PRO X owners.
• Best for people who want to swap earpad materials → Rockville PRO-M50. It ships with both suede and leather pads per headphone; the EDT 700 is velour only.
For most people searching this comparison, the two products aren't really competing — they solve different problems, and the right answer comes down to what's already on your desk. If you own DT 700 PRO X headphones and the pads are the issue, I'd buy the beyerdynamic EDT 700: it's the correct part, it's tool-free, and velour over memory foam is a genuinely comfortable combination for long listening. If you're setting up a space where multiple people need to monitor the same source with their own volume, I'd buy the Rockville PRO-M50 kit instead, because the amp and the four matched headphones do a job no single ear pad set can. In my opinion, buy the EDT 700 to maintain what you have and the PRO-M50 to build something new. Check the current price on Amazon for whichever one matches your situation.
FAQ
No. beyerdynamic lists compatibility with the DT 700 PRO X only. If you own a different model, this set isn't the right fit.
The RHPA4 has four channels with independent volume, and each channel has dual outputs (¼" and 3.5mm), so up to eight headphones can be connected simultaneously.
They're not comparable in that way — one is a complete four-headphone studio kit with an amplifier, the other is a single maintenance part. Decide based on whether you need a multi-listener setup or replacement pads, then check the current price on Amazon for the one you need.
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