Earmen CHamp headphone amplifier

Description

Earmen CHamp

The Earmen CHamp is a great high-end headphone amplifier at a down-to-ear price, a fully balanced machine with exceptional build quality.

CH-Amp from EarMen is a fully balanced desktop headphone amp and preamplifier with versatile features and a linear low-noise power supply unit.

Composite topology

EarMen’s composite op-amp architecture delivers excellent characteristics both from DC and AC power sources along with several advantages over traditional amplification styles.

While many power amps utilise thermal feedback loops, the self heating nature of these loops can impose errors in audio especially when driving heavier loads.

Composite circuitry keenly avoids this issue, offering a better DC output offset to maintain performance even with excess power loads by improving overall circuitry performance.

Design

We used WIMA capacitors as well as audio electrolytes in combination with MELF low noise resistors and SoundPlus OPA1642 operational amplifiers which proved to be great for getting neutral sound. EarMen CH-Amp has excellent characteristics, very low signal-to-noise ratio, and THD, excellent frequency response and a lot of power where the characteristics of the device are changed very little even at high loads.

EarMen CH-Amp have 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 and impedance, for better matching to your headphones.

Exceptional workmanship

CH-Amp is born from a full block aluminum chassis, which makes it extremely durable and robust. Compact design makes it fitting to any environment, any system 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

Fully balanced architecture

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 we remove unwanted forests and prevent them from being added inside the device.

Unique features

Evolving the design traits of former EarMen amp models, CH-Amp offers two unique features to offer even more functionally to the audiophile listening experience. A dedicated preamp output is available for integration into a variety of home stereo setups, while a switchable Gain function is also available via the front panel.

By enabling Gain mode, users can wield better control over both output and impedance levels. This makes accommodating headphones with particularly low or high sensitivity an easy tweak.

Extra Low Linear Power Supply

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

It is made only for the needs of our devices in order to get the best characteristics and efficiency and is specially designed to exceed your expectations. It also has protection against current overload, short circuit and thermal overload according to the highest safety standards.

The big advantage of this power supply is that you can connect it to the EarMen Tradutto DAC and EarMen Staccato Streamer and get a great all-in-one system.

Features