Notes
Standard Version: Neutral sound with good detail, moderate speed, and a wide soundstage, suitable for most high- and low-impedance headphones.
Upgraded Version: Transformer upgraded to 80W, with enhanced rectifier bridge and voltage regulator. Power amplification uses 10A transistors, delivering a rich and pleasant sound. Lower output impedance and higher output power(20W/32Ω), providing excellent detail resolution, more suitable for low-impedance, low-sensitivity headphones.
Features
- Fully balanced headphone amplifier&preamp: featuring RCA/XLR preamp outputs, and 4.4mm/6.35mm jack/4-pin XLR as headphone outputs, it is both a headphone amp and a preamp.With balanced four-way amplification circuit, continuous output power up to 10W at 32Ω per channel, suitable for planar magnetic headphones and hard-to-drive headphones with high impedance up to 2000Ω.
- Reasonable circuit design with higher performance: adopting 12 fully discrete input modules, the signal amplification circuit operates without any op amps. The headphone amp section integrates preamp circuit for improved transparency and soundstage. With eight medium-power output transistors, it delivers clear sound with neatly arranged components.
- Premium components for better quality: it adopts imported toroidal transformer, ALPS potentiometer, four-layer PCB, Philips and Panasonic capacitors, Toshiba MOSFETs, NXP Philips transistors, also Japanese imported low-noise rectifier bridge, all these contributing to wide dynamic range, excellent low-frequency response, powerful output, and pure, pleasant sound.
- Adjustable gain modes and protection design: with adjustable 12dB/18dB gain modes and comprehensive protection mechanisms, including overcurrent, short-circuit, delayed output protection (with a 12-second startup delay), and utilizes automatic DC offset adjustment circuit, which ensures no audible pops or clicks when pluging, safeguarding your delicate headphones.
- Exceptional durability with aesthetic appeal: features a meticulously crafted all-aluminum chassis, pure copper RCA connectors plated with 24K gold for optimal signal transmission, as well as silver-plated Teflon
signal wiring enhance audio performance, delivering a cleaner and more detailed sound.
Warm tips
1.The preamp module operates in Class A, so heat generation is normal.
2.Please lower the volume before connecting or disconnecting input cables or headphones to prevent damage.
3.If the transformer vibrates, please purify the power supply to eliminate interference.
4.Please do not connect speakers or headphones with an impedance below 4 ohms.
5.The machine has a built-in preamp. Don't need to connect another preamp, which could increase distortion. When used as a preamplifier, please avoid plugging in headphones.
6.The power supply must be grounded to prevent interference. Stacking equipment may cause electromagnetic interference, resulting in noise.
Parameters
- Audio inputs: Stereo RCA/XLR
- Audio outputs: 4-pin XLR/4.4mm/6.35mm jack(headphone amp output)+stereo RCA/XLR(preamp output)
- Output power:
6.35mm jack: 2.5W/32Ω, 0.75W/300Ω
4.4mm jack/4-pin XLR: 10W/32Ω, 3W/300Ω
Preamp output: RCA: 110dB, XLR: 111dB@2V
Headphone output: 6.35: 105dB, XLR: 108dB@0.5W
Preamp output: 0.0002%
Headphone output: 0.0004% (@7W)
- Headphone matched impedance: 8-2000Ω
- Frequency response: 8Hz-100KHz
- Input voltage: AC 110V/220V (customized)
- Working voltage: 24-28V
- Static power consumption: 23W, max. 85W
- Dimensions: 360*240*55mm / 14.17*9.45*2.17in
- Net weight: 4.5kg / 9.92lb
- Package weight: 5.2kg / 11.46lb
Packing list
