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Description
Boyuu A20 KT88 Tube Amplifier HIFI KT-88 Amplifier Single-ended 6550 Lamp Integred Amp
With all tubes option: is with 2 x KT88 power tube and 2x preamp tube and a rectifier tube
Without any tube option: is the version wihtout any tubeA20 architecture is inspirit the USA WE 91 with one level amplification circuit, with chinese 6J8P for voltage amplification， it can be replaced by 6SJ7 or many other samelly tube, and the power tube can use direclty with KT88 tube tube without any modification, so we have 3 version to chooseBasic technical parameters:
- Tubes: Rectifier tube: 1 x 5Z3PAT, high level rectifier tube
Voltage tubes: 2 x 6J8P(Equivalent 6SJ7, 6SJ7GT, CV591,CV592, 6Ж8) ,
Power tubes: 2 x PSVANE or Shuguang KT88, Please contact us if you want some special tube
- Power transformer : 0.35mm/60MM 114*60,
- Output transformers: 0.35mm 86*50,
- Output power: 18Wx2(Ultra- linear connection)
- Frequency response: 20Hz--35KHz
- Output Impedance: 4ohms - 8ohms
- Total Harmonic Distortion: ≤ 1% (1kHz)
- Input Impedance: 100KΩ (3 input )
- Input Sensitivity: 750mV
- SNR: 89dB
- Input voltage: 220-240v 50/60hz
- Supply transformer Power: 150W
- Size (W × D × H): 360mm × 300mm × 185mm
- Net weight: 16.5 kg net
Product technology and materials- Power and output transformers use Booyu's best transformers
- Gold plate connection for all connections
- Double CLC filter inductors for rectifier tube
- Double chassis design 2.4mm, very high resistant up to 70kg loading
- The transformers steel are all imported from japon Z11 0.35mm
BOYUU is specially manufacturer for HIFI Transformers, It export to Japan or others countries, and one of leader market chinese brand of transformer , then it’s why the BOYUU’s amplifier transformers are better than others and its tube amps can give a better sound.
- Tubes: Rectifier tube: 1 x 5Z3PAT, high level rectifier tube
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