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Shengya A28 Tube Transistor Vacuum Tube Front Gallbladder Back Stone High Fidelity Combined Power Amplifier with Decoding
Shengya A28 Tube Transistor Vacuum Tube Front Gallbladder Back Stone High Fidelity Combined Power Amplifier with Decoding
Feature:
• Equipped with coaxial, optical fiber, Bluetooth and other digital signal input functions
• The built-in audio signal amplifier circuit uses imported electronic tubes
• Adopt a hybrid high-precision high-voltage stabilized power supply of electron tube, field effect transistor and integrated circuit, with timbre performance, high voltage stability and low AC ripple
• Common-source common-base amplification mode composed of field effect transistors for the voltage gain stage of the transistor power amplifier section
• Class A current amplifier uses Toshiba brand power tube, the sound performance is thicker and warmer; the output power is 150W (8Ω) x2 specifications
• The electronic circuit circuit cross-connect and de-cross-connect capacitors are the German WIMA brand MKP series advanced audio special capacitors.
• The filter capacitor used in the power supply of the transistor power amplifier is the 10000uf / 80v specification of the Japanese ELNA brand FORAUDIO series.
• The signal input and output lines used in the unit are single-crystal copper advanced audio signal lines.
• Use ALPS large remote control volume potentiometer made in Japan; reliable, durable, low noise, no sound stain, and small error between the two channels
• The output uses large gold-plated binding posts for easy connection with any speaker cable, and the two-wire splitter connection method can also be used, so that high and low audio currents are ideally transmitted.
Specifications:
Frequency response: 20Hz-20kHz ± 0.5dB
Rated output power: 150W + 150W (8Ω)
Class A output power: 10W + 10W (8Ω)
Bluetooth version: Bluetooth 4.0
Input sensitivity: 200mV
Harmonic distortion: ≤0.1% (1kHz 1W)
Signal to noise ratio: 90dB
Input impedance: 47kΩ
Product weight: 18.5kg
Dimensions (WxHxD): 430x180x456 (mm)
We ship the package within 1-3 days after the payment cleared.*
Shipping via DHL or UPS or FedEx or other express delivery takes 3-7 business days with a tracking number.
Shipping via China Post EMS or HK Post EMS usually takes 7-14 business days with a tracking number.
Shipping via China Post air mail or HK Post air mail usually takes 10-30 business days with a tracking number.
Faster payment, faster delivery.
Buyer pays any import taxes or customs duty.
All items are marked as low value on postal paper for customs to send that our buyers can save some customs fees.
Standard Return Policy:
If the item shows up defective or damaged, please email us immediately.
ONE-YEAR WARRANTY!!!
Brand new replacement with 14 days.
Defective situation must be reported to seller within 14 days upon receipt.
Returned item should be in its original box with all packing materials and shipped to us via a traceable shipping way.
We carefully inspect returned items upon receipt before issuance of refunds or exchanges.
Please allow up to 10 business days for us to process your return.
The customer needs to pay for the shipping costs for returning.
International Shipping:
We ship goods to worldwide. All the packages will come with a tracking number.
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