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EarMen CH-Amp Desktop Headphone Amp w/ LPSU

Compact and mighty - a fully balanced headphone amplifier / pre-amp with linear PSU. 

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$2,650.00
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PLEASE NOTE:

The EarMen CH-Amp package does NOT include an IEC power cable for the linear power supply.

 

CH-Amp is serious desktop headphone amplifier with an impressively small footprint. Designed as a stack with an included Linear Power Supply, the CH-Amp supplies up to 3.8W of power. With both 4.4mm balanced input, 4.4mm balanced headphone output and a 4.4mm balanced pre-amp output, the EarMen CH-Amp is a champion of versatility.

 

Design

EarMen CH-Amp uses premium components for neutral, clear sound: WIMA capacitors as well as audio electrolytes in combination with MELF low noise resistors and SoundPlus OPA1642 operational amplifiers. The result is impressive technical performance, with very low signal-to-noise ratio, THD, and excellent frequency response. The CH-Amp outputs up to 3.8W of clean power even with demanding headphone loads.

EarMen CH-Amp includes two important features: preamp outs and a gain switch. CH-Amp has balanced and single-ended preamp outputs, so you can connect to powered monitors for a complete system. The gain switch gives you better control of both output level, for better headphone matching.

EarMen CH-Amp is a fully Balanced Headphone Amplifier which means that the balanced outputs from the source go to the output intact, only amplified. From the Single-end input, the signals are converted to balanced without phase shift (phase imbalance), so that the obtained + and - signals are perfectly in phase. In this way Earmen removes unwanted noise and prevent it from being added inside the device.

 

Exceptional Workmanship

CH-Amp's chassis is milled from a full block of aluminum, which makes it extremely durable and robust. The compact design makes it fit any environment, or home. The PCB is embedded in a solid aluminum housing, giving the board greater protection inside the housing and additional insulation from external influences.

 

Low Noise Linear Power Supply

With the CH-Amp you also get linear low noise power supply made without compromise, using the best components and the latest circut design. The EarMen Linear power supply is reliable, simplistic and produces minimal noise.

The LPSU has protection against current overload, short circuit and thermal overload according to the highest safety standards.

THe EarMen LPSU has been designed specifically for EarMen's range of desktop products and includes additional cables to power EarMen Tradutto DAC and EarMen Staccato Streamer for a great all-in-one stack.

 

  • External low noise linear power supply
  • Composite amplifier topology
  • Output power up to 3.8W
  • Fully balanced architecture
  • Gain control
  • Ultra low THD and SNR
  • Aluminum chassis
  • Remote controller
  • EarMen CH-Amp
  • Linear Power Supply
  • Additional power cables for Tradutto DAC and Staccato Streamer stack
  • Remote Control
  • User Manual

Please note, an IEC power cable is not included in the package.

Input / Output

Inputs L 1 RCA 
  L 2 RCA 
  L 3 Balanced 4.4 mm
     
Outputs SE 6.35mm
  Balanced 4.4mm
     
Pre Outputs RCA SE output
  Balanced  4.4mm
     

 

Physical Specification

Dimensions  150x30x150 mm / 5,9"x1,18"x5,9"
Weight 550 gr / 1,21lbs
PSU Dimensions   150x60x150 mm / 5,9"x2,36"x5,9"
PSU Weight 1590 gr / 3,52 lbs

 

Line Output

Pre Out Balanced output Single-end Output
Output Level 8V 4V
Output Impedance 200Ω 100 Ω

 

Headphone Outputs

Gain High Low
SE 6.35mm 7V (1.5W / 32Ω) 2.9V (260mW / 32Ω)
Balanced 4.4mm 11V (3.8W / 32Ω) 5.5 V (1W / 32Ω)

 

  Single-ended output
SE Input BAL Input
Output Level 7Vrms  11Vrms 
Max Power 1,5 W 3,8 W
THD+N 0.0008% 0.0005%
SNR >116dB >118dB
Freq. Response ±0.005dB ±0.005dB

 

Fully Balanced Output
  SE Input BAL Input
Output Level 7Vrms  11Vrms 
Max Power 1,5 W 3,8 W
THD+N 0.0008% 0.0007%
SNR >118B >119dB
Freq. Response ±0.005dB ±0.005dB

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