Content | Precision Headphone Amplifier
- Based on the headphone amplifier section of the Rupert Neve Designs 5060 Centerpiece
- Three switchable inputs (XLR, RCA, mini-jack)
- Solid steel housing
- Output impedance: 0.08 Ohm at 1KHz
- Frequency response: +/- 0.2 dB from 10 to 12,0000 Hz
- Power supply: 24 V via an external 6 W power supply (included) or via battery
- Dimensions (W x D x H): 165 x 117 x 48 mm
| The new HP4 from PreSonus answers the need for a headphone distribution
amplifier with professional specifications in a small package at an affordable
price. The HP4 features four discrete headphone outputs on the front panel
each with its own volume potentiometer and 150mW of amplification per channel.
The HP4 also features adjustment over control room monitors with a separate
volume control, monitor mute switch and mono switch giving you an extremely
powerful monitoring solution at an amazingly low price.
Features
? Four High Power Headphone Outputs
? Ultra loud (150mW per channel)
? Ultra quiet operation
? Musical Wide Dynamic Range
? Control Room Monitor Outputs with Level Control
? Mono or Stereo Operation
? Monitor Mute Switch
? Daisy Chain an Infinite Number of Units
? Compact package
Technical Specifications
Input
TRS Impedance 10K Ohms
Panel Controls
Headphone Level 1 to 12
Monitor / Feed Output -80dB to +10dB
Mono Switch
Monitor / Feed Mute
Power Supply
Type Linear
Input 16VAC/1000mA
Output
TRS Balanced 51 Ohms Impedance
Performance
THD+Noise (Unweighted) 0.002%
Noise Floor -98dB
Signal To Noise >95dB
Power Supply Rejection >98dB
Power 16 Watts
Physical
Weight 5lbs./ 2.3 kg.
Dimensions 5.5 x 5.5 x 1.75
Mounting Max Rack and Universal Rack Tray
Chassis Steel
Panel Brushed Aluminum
Sides Cast Aluminum |
Specifications
General
Frequency response
20 Hz - 20 kHz (+0 dB, -1.5 dB)
Signal-to-noise ratio
100 dB (IHF A-weighted, input level control min.)
Channel separation
80 dB between adjacent channels
Line input
Front: 6.3 mm jacks, unbalanced
Rear: RCA connectors, unbalanced
Input impedance
40 kOhm
Nominal level
-10 dBV (0.3 V)
Headphone outputs
four 6.3 mm stereo jacks
Maximum output power
2 x 1.5 W at 8 Ohm (1 channel in use)
2 x 1,2 W an 8 Ohm (four channels in use)
Power supply
230 V AC, 50 Hz
Power consumption
10 W
Dimensions (W x H x D)
482 mm x 44 mm x 196 mm
Weight
4 kg |
INPUT: 1 audio stereo, 1Vpp/50kΩ on a 6.5mm stereo phone socket.
OUTPUTS: 5 audio stereo, 500mW/8Ω on 6.5mm stereo phone sockets.
AUDIO BANDWIDTH (-3dB): 25kHz.
CONTROL: 5 stereo output level controls (front), 1 mono switch (rear).
GAIN RANGE: -60dB to +10dB.
S/N RATIO: 78dB.
THD: 0.08% @100mW.
POWER SOURCE: 12V DC, 370mA nom, 1A max.
DIMENSIONS: 16.5cm x 12cm x 4.5cm (6.5” x 4.72” x 1.77”) W, D, H.
WEIGHT: 0.68kg (1.5lbs) approx.
ACCESSORIES: 12V DC power supply.
OPTIONS: RK-1 19" rack adapter.
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The PHDA02 - a reference class headphone amplifier with Stereo, Mono, and Dual Mono operation modes.
In Stereo mode, the L/R input signal is fed to the left and right earphones while the volume level is set by the Stereo/Left control. The front panel inputs provide simultaneous connection of two headphones in parallel. In Mono mode, the left and right channels are summed, and the resulting mono signal is fed to both the left and right earphones. Again, volume is governed by the Stereo/Left control. In Dual Mono mode, the left and right channels can be used independently with individual level controls for the left and right earphones.
The PHDA02 operates with all headphones with an impedance of 8 up to 200 Ohms. Impedance matching is achieved by a specially designed switchable transformer. Uncommon and costly, this solution provides superior performance, dynamic range, and signal-to-noise ratio at all loads.
Combo input sockets allow for balanced XLR and unbalanced TS headphone connection while parallel XLR outputs facilitate daisy chaining multiple units. The integrated power supply operates with mains from 100 VAC to 240 VAC.
The PHDA02 is equipped with low-noise op amps, and the output amplifiers' discrete power transistors are mounted on heatsinks. Dimensions are 1 U 9.5“.
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- Ultra-compact monitor headphone amplifier for studio and stage applications
- Personal \'\'more me\'\' mixer – mix a mic plus a monitor signal and hear them via headphones
- Flexible Mic In and Mic Through connectors plus Ground Lift switch
- Stereo Monitor input with dedicated Monitor Level control and Mono/Stereo switch
- High-power headphone output on 1/4\'\' and 1/8\'\' jack connectors
- DC 12 Vadapter included
- 3-Year Warranty Program*
- Designed and engineered in Germany
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