PRO-M50 SR Studio Headphones 4-Pack Bundle with RHPA4 Amplifier | 40mm Neodymium Drivers, Closed-Back, Detachable Coil Cable, Cases, Stereo/Mono, USB Powered, 1/4" and 3.5mm Outputs, 5-Items

Package Includes: (4) PRO-M50 SR Studio Headphones + Detachable Coil Cable + Case + Extra Ear Pad, (1) RHPA4 4 Channel Professional Headphone Amplifier Stereo or Mono Amp. Accurate Monitoring with PRO-M50 SR: Closed-back, circumaural design with 40mm neodymium drivers delivers a flat, editing, and mixing response. Expect tight low end, detailed mids, and clean highs across a wide 10 Hz-25 kHz range. The sealed cups minimize bleed in live rooms and VO booths, while 97+/-3 dB sensitivity, 32-Ohm impedance, max power 600 mW, rated power 260 mW, and 290 g net weight (with cable) keep PRO-M50 SR easy to drive and wear from interfaces, mixers, and portable devices. All-day Comfort & Pro Accessories: Ergonomic swivel ear cups and a soft leather headband reduce fatigue during long sessions. Swap between included leather and soft suede ear cushions to tailor isolation and feel. The detachable 51" 100% OFC coiled cable (158" extended) with gold-plated 3.5 mm plug and 1/4" adapter ensures reliable connections. A hard leather protective case keeps each PRO-M50 SR safe for travel, rehearsals, and remote work. RHPA4: 4-Channel Control: Power one mix to four artists, each with independent volume. Parallel 1/4" and 3.5 mm outputs per channel let you run up to 8 headphones (2 per channel) in stereo or mono - great for bands, classrooms, and podcasts. Low-noise design (S/N >98 dB, THD <0.01%) preserves detail; 20 Hz-20 kHz response keeps cues accurate. Rugged metal chassis, quality pots, and a clear power LED withstand daily studio use. Compact, Bus-Powered Setup: The RHPA4 runs on 5 V DC (1000 mA) via the included USB power supply, so it's easy to deploy anywhere - desktop rigs, laptop carts, or mobile studios. With input impedance at 22 k and minimum load 16-Ohm per output, it pairs seamlessly with the 32-Ohm PRO-M50 SR. At just 4.6" x 3" x 2.36" and 0.85 lb, the amp fits tight spaces, while four matching headphones keep teams in sync for recording, podcasting, rehearsal, or content creation