Pure Class-A tube headphone amplifier with 32-Bit, 192K USB Digital-to-Analog Converter
The WOO Audio WA7 â€śFirefliesâ€ť Amp/DAC is a combination of high performance vacuum tube headphone amplifier with a built-in USB Digital-to-Analog Converter. It is a pure tube design, utilizing 6C45 tubes in a class-A, single-ended topology, with transformer coupled outputs. There are no semiconductors used in the entire amplification path. The D-A converter is designed to be capable of up to 32-bit/192k sampling rates. This maintains pure data integrity, which is transmitted via standard high speed USB 2.0 interface operating in asynchronous mode.
The high quality construction features include a pair of Nickel Alloy core output transformers, all-aluminum chassis with no screws visible from any viewing angles, a remote-controlled linear external power supply for amplification circuitries, a custom built toroidal power transformer, and multi-layer military grade PCBs.
The dedicated port for in-ear-monitors carries a full range of volume controls ensuring minimal noise. Despite its incredibly compact size, â€śFirefliesâ€ť is a power-house with the capacity to drive almost any demanding audiophile headphones. To accommodate different system setup needs, â€śFirefliesâ€ť can also be used as a stand-alone D-A Converter.
A power-house to drive even the most demanding full-sized headphones, along with a dedicated mini phone jack tailored for in-ear-monitors.
Pure tube design without the use of semi-conductors in the amplification circuitry. The 6C45 triode acts as both driver and power tube.
The USB input supports up to 32/192k high-res playback. The RCA connectors can be used either as analog inputs or as D-A outputs. Both in/out signals are user selectable on the back panel.
The linear external power supply provides pristine energy to the amplifier. It can be placed where ever you please to keep the simplicity of the unit.
A thick block of superior quality, high clarity glass is provided to protect the tubes, while maintaining a clean and elegant aesthetic.
|Specificatii||Putere RMS: 1 watt @ 32 ohms
Raport Semnal/zgomot: 95dB
Raspuns in frecventa: 11Hz to 27kHz, +/-0.5dB
Greutate: 5.5 kg
Dimensiuni: AMP: 4.8 L x 4.8 W x 5.1 H with glass
PSU: 7 L x 3.5 W x 2.2 H
Alte caracteristici: Single-ended, class-A, transformers output
Linear external high-performance power supply (remote-controlled power switching)
Two 6C45 driver/power tubes
C-Media 6631 USB chip
TI PCM5102A 32-bit DAC chip
Headphones impedance : 8-600 Ohms
Input impedance: 100 Kilo-Ohms
Sampling rate: up to 32-Bit, 192kHz
Inputs: 1 Asynchronous USB2.0, 1 RCA
Outputs: 1 1/4 and 1 1/8 headphone outputs, 1 RCA (same connector as the input)
Handmade output transformer with Nickel Alloy core
32-Bit, 192kHz high resolution playback
Ultra-low jitter USB 2.0 runs on Asynchronous mode
High and low impedance output facilitated via toggle switch on back panel
Open load protection will automatically engage to prevent the amp from damaging when no headphones are plugged in
Multi-functional switch for USB input, RCA input, and RCA output via D-A.
The RCA connectors can be used either as RCA analog inputs or USB DAC preamp outputs
All-aluminum chassis with no screws visible from any viewing angles
High clarity tube protection glass
Multi-layer military grade PCBs
Customized driver for Windows Vista/XP/7/8
USB Audio Class 2.0 is natively supported by Apple OS X version 10.6.4 and above without installing driver