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Headphone Amplifier

  • Input Impedance 10 K Ohms
  • Maximum Input Level +18 dBV
  • Output Power 221 mW per side
The RA53b is a high powered headphone amplifier with five 14 and 18 (3.5mm) headphone and earphone outs. Two RA53b units may be linked together and mounted side-by-side in a universal rack tray for a total of 10 outputs.
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Digital Tuner With XLR Outputs

  • 30 dB quieting sensitivity 28 dB
  • 3dB Limiting Sensitivity 28 - 35 dB
  • Current 100 mA
  • Supply Voltage 12-15 VDC
The HRS84 is a digital FM tuner. It features professional line level XLR outputs. A dedicated headphone output on the front of the unit. Operates in Mono or Stereo. Up to two HRS84s can be rack mounted in a single standard 1U rack space, the Rolls URT5 (Universal Rack Tray), or the RMS270 Rack Module System.
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FM Digital Transmitter

  • Power 12 - 15 VDC 500mA 5 x 1.2 mm
  • Frequency Response 20 Hz - 12.5 kHz
  • Input Impedance 100KΩ Unbalanced
The HR70 is a digital FM transmitter. Send a signal to the XLR or RCA inputs of the HR70. Select what frequency you would like to broadcast those signals on --87.5 to 108 MHz-- and you are now sending signals via FM radio. The HR70 also has a talk over circuit built in.
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Portable Battery Operated Headphone

  • Input Impedance 47k Ohms
  • Input Connectors TRS Stereo 1/8”, Dual RCA
  • Max Gain 20 dB/Channel
  • Weight 85 lb
The HA204p is a full frequency response, four channel headphone monitoring device designed for the recording studio, or other professional applications. Each output boasts a whopping 20 dB of clean channel gain.
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RPB488 Phantom Eight Channel

  • Connectors IN: 8 ea
  • Phantom Power Voltage 48 Volts
  • Max Phantom Power Current 14 mA each channel
The RPB488 powers up to 8 condenser microphones with 48 volts of ultra clean phantom power. The inputs and outputs are 3 pin pluggable barrier strips balanced for easy connection to a digital multi-track recorder. To eliminate the possibility of any DC voltages, the RPB488 features pull-down resistors and isolation capacitors on all outputs.
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Studiophile Headphone Amp

  • Power 15 VDC (Adapter included)
  • Input Impedance 10 K Ohms
  • Maximum Input Level +26 dBV
  • Max Gain 20 dB per channel
The HA243 is a high powered headphone amplifier with four 14 and 18 (3.5mm) headphone outs. The HA243 features an A-B switch for each channel to monitor either the A or B input with the flick of a switch!
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Ear Phones

  • Impedance 32 Ohms
  • Weight 5 oz
  • Cone Mylar
  • Input Rating 30 mW
The Rolls EB77 professional audio earbuds feature a carefully selected mylar cone cobalt magnet design to fit the exacting needs of musicians and audio professionals alike.
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Personal Monitor System

  • Power 9 - 16 VDC
  • Size (W x H x D): 4.5" x 3.3" x 1.5"
  • Weight 1 lb (.45 Kg)
The PM351, like its predecessor the PM350b, is a personal monitoring device with a 14" TRS stereomono Line Input, a single XLR Microphone input and hard-wired XLR pass-through, and a 14" stereomono Instrument input with two transformer-balanced and isolated XLR Outputs. All three of these inputs are also routed via individual Level controls, to a 14" and an 18" (3.5mm) Phone Output. The Mic Through, and Instrument outputs have jumpered Ground Lifts for elimination of ground hum. The PM351 is ideal for live bands and church musicians, as well as studio musicians and singers. Having the ability to monitor a main mix along with the musician's voice and their instrument make the PM351 an effective and versatile tool.
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Headphone Amp

  • Size 4.15 x 3.45 x 1.16 (W x H x D)
  • Weight 1 lbs (.45Kg)
  • Input Impedance 100K Ohms unbalanced
  • Max Gain 20 dB/Channel
The HA43 Pro is a full frequency response four channel headphone monitoring device designed for the recording studio, or other professional applications like listening rooms and monitoring stations. Each output boasts a whopping 20 dB of clean channel gain.
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  • Loren Merrick (Roll Corporation)
  • 11444 W. Olympic BLVD Los Angeles, CA 90064, United States
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