User's Manual

RNHP:
Precision Headphone Amplifier
User Guide
Common Source Devices
In addition to being able to drive a wide variety of headphones without sacricing performance, the RNHP is also capable of
receiving a wide array of signals with its 3 separately calibrated inputs. Here are some common examples:
Maximum Input Levels
XLR I/P: +22.8 dBu @1kHz, RCA I/P: +14.7dBu @1kHz, 3.5mm I/P: +3.3dBu @1kHz
Output Power:
As measured with headphones, Z=44 Ω: 3.617 VAC RMS @1kHz = 300mW RMS
16 Ω typical Load: 1.933 VAC RMS @1kHz = 230mW RMS
150 Ω typical Load: 5.108 VAC RMS @1kHz = 175mW RMS
Output Impedance
.08 Ω @ 1KHz, 16-150 Ω load, 0dBu input
Frequency Response
+/- .2dB from 10Hz to 120KHz
Noise
With typical headphones, Z=44 Ω, BW 22Hz – 22kHz
XLR Input: -101.9dBV, RCA Input: -100.9dBVdBu, 3.5mm Input: -88.8dBV
Power Supply Requirements
24VDC @ 0.25Amp (6 watt) minimum. Use with supplied power adapter, as this has been carefully selected for best output
power and noise performance
“A” +4dBu Line (XLR or TRS) Devices “B” RCA Devices “C” 3.5mm Stereo Devices
Studio Audio Interfaces (Line or Monitor Out)
Headphone Mixers (Line Output or send low level HP out)
Mixing Consoles (Line or Monitor Out)
Professional Turntable Mixers (Line or Monitor)
Professional Stereo Digital to Analogue Converter
Professional Cameras
Studio Monitor Controller
CD Players / DVD Players
Stereo Tuners
Preamplied Turntables
Prosumer Recording Devices / Cameras
Phones
Mobile Music Players
Computers
DSLR Cameras
Handheld Recording Devices
Any 3.5mm headphone output
p/n 775-00024 Rev A