Description
EarMen CH-Amp
Desktop Fully Balanced Headphone Amp/Preamp
- 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 controler
Earmen, a step further…
After the successful launch of small portable devices at the market, EarMen has taken it a step further and prepared specially designed line of devices for you, that will give you real and unique pleasure in listening to music. EarMen designed a desktop fully balanced headphone amplifier with excellent features and a linear power supply unit.
Composite Amplifier Topology
A Composite Amplifier Topology is implemented in the CH-Amp. Composite op-amp brings the best of both worlds with excellent DC and AC characteristics. These amplifiers offer several advantages over other types of amplifiers.
Power amplifiers typically use thermal feedback loops, thus causing serious errors while driving heavy loads. These errors occur due to self-heating. The use of the composite can remove such errors and improves the performance of the circuitry. The composite amplifiers also offer better DC output-offset. The excess of the load placed on the output transistors does not affect offset voltage.
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.
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.
Specification
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
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
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
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)
Pre Out Balanced output Single-end Output
Output Level 8V 4V
Output Impedance 200Ω 100 Ω
EarMen Tradutto
Ultra Hi-Res Fully Balanced DAC
EarMen is coming up with NEW sophisticated DAC with wide range of abilities to offer. EarMen Tradutto is a piece-of-art device with the power to Enhance Sonic Performance of your system.
The ES9038Q2M DAC allows outstanding sound performance and easily handles digital audio files up to 32bit/768kHz or DSD512. Furthermore, the whole circuit is optimized to draw less current and improve power filtering, resulting in low interferences from Wi-Fi, cellular, and Bluetooth signals.
Gold Plated PCB – Not only does it give a good clean low resistance contact, but the perfect flat surface.
Digital optical, digital coaxial and USB inputs – connect CD players, phones, tablets, games consoles, laptops or other digital audio sources – just play it!
Built in Qualcomm HD Bluetooth 5.1 (AAC/SBC/aptX/aptx LL/aptx HD )
MQA Supported: OFS (MQB/MQA Core, decoded file), MQA (MQA file that is hardware decoded in our device and then rendered), MQA Studio (the same as MQA, just with the consent of an author or production company)
XMOS 16-Core chip (XU216) – has enabled us with its excellent performance a hardware decoding MQA, as well as other necessary functions for listening to music (delivers double the clock speed (2000MIPS) and four times the memory (512KB).
TRADUTTO is fully balanced, which means that the balanced outputs from the DAC go to the output intact, only amplified.
All the sources
Tradutto lets you enjoy music from any source, such as Coaxial, USB, TOS Link connections or HD Bluetooth. Wherever songs are played from, TRADUTTO stays true to the character of every instrument and uncovers a musicality you’ve never heard before. It offers a variety of options and freedom of choice that you can customize to your own sensibilities and possibilities.
Outstanding audio performance
At the heart of Tradutoo is the extremely high-quality ESS Saber digital-to-analog converter ES9038K2M that delivers outstanding sound performance that can process digital audio files up to 32bit/768kHz or DSD512, so you can enjoy high-resolution music in every detail. EarMen Tradutto is designed for true audiophiles.
MQA Studio quality audio
MQA Support: ‘OFS’ confirms that the product is receiving an MQA stream or file. This delivers the final unfold of the MQA file and displays the original sample rate.
‘MQA’ or ‘MQA Studio’ indicates that the product is decoding and playing an MQA stream or file, and denotes provenance to ensure that the sound is identical to that of the source material.
‘MQA Studio’ indicates it is playing an MQA Studio file, which has either been approved in the studio by the artist/producer or has been verified by the copyright owner.
MQA (Master Quality Authenticated) is an award-winning British technology that delivers the sound of the original master recording. The master MQA file is fully authenticated and is small enough to stream or download. Visit mqa.co.uk for more information.
Qualcomm QCC5124 Flagship Chip
BlueTooth QCC5124 is a part of the QCC5100 Low Power Bluetooth Audio SoC Series. It is designed to meet demand for robust, high quality, wireless Bluetooth listening experiences in small devices with low power consumption for longer audio playback.Qualcomm® aptX™ audio, aptX HD, and Qualcomm aptX Adaptive audio technologies are designed to deliver consistent, high quality audio streaming over Bluetooth.
Exceptional workmanship
Tradutto 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
The Finest DAC Circuitry
We used XMOS with 16 cores (XU216), which with its excellent performance enabled us to hardware decode MQA as well as other necessary functions for listening to music.
The clock is carefully adjusted and has minimal jitter.
The digital and analog part of the circuit is also carefully separated by the power supply
We used wima capacitors to obtain the lowest THD, 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.
Specifications
Inputs Bluetooth Bluetooth 5.1 (AAC,SBC, aptx, aptx HD, aptx LL )
USB
TOS Link S/PDIF optical
COAX S/PDIF
Outputs RCA output impedance = 300Ω
Balanced 4.4mm output impedance = 600Ω
Audio Formats:
PCM Up to 768 kHz
DSD DoP64, DoP128, DoP256, native DSD512
DXD Up to 768 kHz
MQA OFS (MQA Rendering), MQA, MQA Studio
Bluetooth/SPDIF 44.1kHz – 192kHz/16bit – 24bit
Single-end output:
USB Input S/PDIF input/BT
Output level 2Vrms 0dBFS 2Vrms 0dBFS
THD+N 0.0003% 0.0003%
SNR >116dB >116dB
A-Weighted A-Weighted
Freq.Response ±0.014dB ±0.006dB
Fully Balanced Output:
USB Input S/PDIF input/BT
Output level 4Vrms 0dBFS 4Vrms 0dBFS
THD+N 0.0003% 0.0003%
SNR >120dB >122dB
A-Weighted A-Weighted
Freq.Response ±0.03dB ±0.003dB
EarMen Staccato Streamer
– Made for Sound
– Stream straight from Spotify, TIDAL
– The state-of-the-art Streaming
– Connect to your chosen DAC
– Ultra-low jitter design
– Unity Chassis
– Engineered to Perform
EarMen has built a worldwide reputation for creating innovative digital audio components of the highest quality. Elegantly crafted, with meticulous attention to detail, EarMen Staccato combine classic design with state-of-the-art digital technologies to create new pathways into the future of high-performance sound.
EarMen’s Staccato integrated hardware and management software provide the effort to play music in high resolution. Whether it’s streaming from Internet services or local music collections, EarMen components allow you to discover, share and connect like never before, expanding the horizons of your audio system to new levels of functionality and performance.
Stunning Sound Quality
Wherever songs are played, Staccato stays true to the character of every instrument and uncovers a musicality you’ve never heard before. Staccato will allow you to hear all the details in your digital files and enjoy the next generation of sound in its purest form and precision. It uses advanced filtering and resonance reducing techniques to ensure the sound quality produced by Staccato is completely unaffected by unwanted signals and noise.
Complete audio solution in a single box
With rich connectivity, including TOS Link, RCA or USB, our engineers have ensured that you can enjoy all your digital content, up to 32bit / 384kHz and DSD 256.
Stream music from your favorite sources
Play songs from the USB, Internet Radio, Spotify, TIDAL and more via Bluetooth
Designed Endurance and Elegance
Earmen Staccato with its design rises to a new level of elegance. The physical construction of the Staccato in a massive aluminum chassis gives the result of combining the sublime musical performance with the exceptional durability. Built to be the very best at what they do, they’ll take your listening to new heights. Every component has undergone thousands of hours of testing and tweaking.
Easy to set up, easy to use
Control in the palm of your hand, thanks to the dedicated EarMen app for iOS and Android. Connect it using the Bluetooth via EarMen App and fire up your favourite music streaming service. No matter where your music’s coming from, Staccato will make it sound its best.
Specifications
Input Power AC/DC power adapter 9-12V DC/2A
Input Connectors 1 x LAN, 1 x USB 2.0
Output Connectors 1 x TOS Link, 1 x RCA
Ethernet 10/100Mbps
Bluetooth Bluetooth LE 4.2 (BDR/EDR)
Max Power Consumption 20W
Dimensions L x W x H 150x150x30 mm / 5.9″x5.9″x1.18″
Weight 1180 gr / 2.60 lbs
