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WooAudio WA7 2nd Gen Fireflies Desktop Headphones Tube Amplifier
The Woo Audio WA7 “Fireflies” 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 24-bit/384k 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, “Fireflies” is a power-house with the capacity to drive almost any demanding audiophile headphones. To accommodate different system setup needs, “Fireflies” can also be used as a stand-alone D-A Converter.
Fireflies also allows the option of rolling (changing) tubes to satisfy all tastes of sound signatures for all audiophiles, it also comes with an upgraded tube power supply unit and a selection of 2 colours, please use the drop down menu on the right to choose your preference and please note that for some upgraded models a longer delivery period might be required,
- Pure Class-A tube headphone amplifier
- Built in 24-Bit, 384K USB Digital-to-Analog Converter
- Solid state power supply
- Handmade output transformer with Nickel Alloy core
- High and low impedance output facilitated via toggle switch on back panel
- Pure tube design without the use of semi-conductors in the amplification circuitry.
- The RCA connectors can be used either as analog inputs or as D-A outputs
- All-aluminum chassis with no screws visible from any viewing angles
- High clarity tube protection glass
- Option to upgrade power supply to full vacuum tube model
- Elegant and compact design
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Technical Specification
- Type: Desk top Headphone Vacuum tube Amp/DAC
- Tubes: Two 6C45 driver/power tubes
- Frequency Response: 11-27,000 Hz
- Headphones impedance : 8-600 Ω
- S/N: 95dB
- Distortion: <0.03%
- Max output: approx 1 watt @ 32 ohms
- Weight: AMP - 2.4kg, Glass -1.5kg, PSU - 1.4kg
- Inputs: 1 Asynchronous USB2.0 / 1 RCA
- Outputs: 6.4mm High gain / 3.5mm Low gain
- Warranty: 1 year
What Is In The Box
- WA7 Fireflies AMP/DAC
- 2 6C45 tubes
- Clear Glass cover
- Cleaning cloth
- Silicon pads
- SS power supply unit
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Manufacture Description
The Woo Audio WA7 “Fireflies” 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 24-bit/384k 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, “Fireflies” is a power-house with the capacity to drive almost any demanding audiophile headphones. To accommodate different system setup needs, “Fireflies” can also be used as a stand-alone D-A Converter.