EarMen ST-Amp | Fully Balanced DAC and Amp

EarMen ST-Amp offers legendary clarity and transparency in a Desktop DAC/Amp Combo

• Up to 1.85W of power with ultra low noise and distortion
• Integrated  ES9280 DAC
• Simple, compact, and durable design.

Compact, Fully Balanced Desktop Power

EarMen ST-Amp is a Fully Balanced Desktop Headphone Amplifier with the Pre Amp option and integrated DAC. It has extrodinary sound, whether it is listened to from an integrated DAC or an external, which is great news for all those who want to have everything in one device. The amplifier is carefully made for headphones, so you can not experience unpleasant Pop and Click phenomena when turning it on or off.

Fully Balanced

The amplifier is fully balanced, so your every sound from the input will become even cleaner and better, but that's not all. We use the exact same topology for SE signals, so they become Balanced in a special way with almost no phase shift, additional noise or THD, which is great news because the sound from the SE output does not lag behind the sound from the Balanced output.

The headphones output are powered by two TPA6120 operational amplifiers, which have proven to be excellent in the audiophile world. To make the experience complete, we use a high-quality balanced ALPS potentiometer that contributes to the sound remaining unchanged, and the user satisfied during use.

Sound

ST-AMP affects the sound so that your DAC can be heard better. Although many DACs have excellent specifications, it is not enough for the sound to fully express itself. ST-AMP fully utilizes the maximum dynamics provided by the sound source, so you will not be deprived of any detail. In addition, it very easily controls various headphone drivers, thus improving accuracy, neutrality and transparency.

Amazing Dynamics

Dynamic range above >126dB will guarantee you liveliness and musicality that will allow you to never have the feeling that you are missing something. With perfectly balanced sound and incredible dynamics, you will have the feeling of being in a concert hall.

Pre Out Option

On the back panel of the device we have SE and BAL Pre-Out outputs. This option allows the user to use the ST-Amp as a DAC and preamplifier for a much more powerful system.

Source of your choice

The sound source can be chosen according to your choice. Analog input or Digital/Integrated DAC gives you the freedom to listen to your favorite music from any source.

Ultra Low THD

Low Total Harmonic Distortion is such an important feature and as such we take it very seriously. ST-Amp has Very low Total Harmonic Distortion which will allow you higher power factor, lower peak currents, and higher efficiency without distortions.

Power Supply

At the heart of the device itself is a noiseless linear power supply with great stability, so it can easily provide enough power even for the most demanding headphones. Apart from the special topology of the amplifier, the power supply is worthy of excellent characteristics even at full power, which is often not the case with most amplifiers, so in their specifications you can find measurements but at half power.

Specifications

• Inputs:
• RCA Single End Input
• Balanced 4.4 mm Input
• Outputs
• SE 6.35mm
• Balanced 4.4mm
• Pre Outputs
• RCA (SE output)
• DAC: ES9280
• Audio formats
• DSD 64 / 128 DoP
• DXD 384/352.5 kHz
• PCM Up to 384 kHz

Single Ended Output

• Output: 4V-0.5W@32 Ohm 7.75V-1.85W@32Ohm
• THD+N: 0.0025% 0.003%
• SNR: [A-W] >117dB >121dB
• Dynamic range: >117,9dB >121dB
• Freq. response: ±0.003dB ±0.007dB

Balanced Output

• Output: 4V-0.5W@32 Ohm 7.75V-1.85W@32Ohm
• THD+N: 0.0025% 0.002%
• SNR: [A-W] >118dB >125dB
• Dynamic range: >118dB >126dB
• Freq. response: ±0.003dB ±0.006dB

Physical Specifications

• Dimensions: 170x30x150 mm / 6,69"x1,18"x5,90"
• Weight: 1100 gr / 2,42lbs