QII-Classic
Mono valve power amplifier that reproduces the original QUAD II design, with EF86 input valves, KT66 output valves and a GZ34 rectifier. It delivers 15W RMS into 8 ohms and is supplied as a matched pair, aimed at vintage-minded audiophiles.
- Mono valve power amplifier, supplied as a matched pair
- 15W RMS into 8 ohms, Class A output stage
- 2 x EF86, 2 x KT66 and 1 x GZ34 valves
- Frequency response 10Hz - 20kHz (±0.2dB)
- Input sensitivity 775mV RMS
- 335 x 121 x 171mm, 8.3kg
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Parduoti tokįAprašymas
The QII-Classic is a mono power amplifier built as a close recreation of the original QUAD II. It keeps the circuit and output transformer approach of the original design, and uses valves equivalent to those in the first model: two EF86 input valves, two KT66 output valves and a GZ34 rectifier. The output stage runs in Class A and gives 15W RMS into an 8 ohm load.
Quoted measurements include a frequency response of 10Hz to 20kHz (±0.2dB), total harmonic distortion of 0.8% at 12W at 700Hz, and residual hum and noise better than -90dB. Damping factor is 11.75 at 700Hz, referred to 8 ohms. Input sensitivity is 775mV RMS.
Each amplifier is a single mono chassis measuring 335 x 121 x 171mm and weighing 8.3kg. Units are supplied in matched pairs, so a stereo system uses two of them, and the amplifier is intended to be paired with suitably matched contemporary loudspeakers.
Specifikacijos
- Gamintojas
- Quad
- Modelis
- QII-Classic
- Kategorija
- Hi-Fi ir namų garsas › Stiprintuvai
Audio
- Power output
- 15W RMS
- Output impedance
- 8 Ohms
- THD @ 700Hz
- 0.8% @ 12W
- Residual hum and noise
- Better than -90dB
- Frequency response
- 10H - 20kHz (± 0.2dB)
- Damping factor
- 11.75 @ 700Hz (referred to 8 Ohms)
Inputs
- Input sensitivity
- 775mV RMS
Valves
- Input valves
- 2 x EF86
- Output valves
- 2 x KT66
- Rectifier valve
- 1 x GZ34
Physical
- Dimensions (W x H x D)
- 335 x 121 x 171mm
- Weight
- 8.3kg
- Model
- QII-Classic
- Type
- Power Amplifier
- Supplied as
- Matched pair of mono amplifiers