Sansui - C-77 & B-77 – Stereo Preamplifier / Power Amplifier Set - Serviced (B77 Repaired)

For sale: A distinctive matching Sansui C-77 / B-77 pre- and power-amplifier combination, finished in silver with the original dark chassis.

The C-77 stereo preamplifier provides MM/MC phono capability, multiple line and tape connections, tone controls, filters and Sansui's electronic fader/source display.

The matching B-77 stereo power amplifier features Sansui's Linear A & DC Servo design together with its large illuminated peak-power and spectrum-analyser display.

The B-77 has recently been professionally serviced, with work carried out specifically on the amplifier section and speaker switching/output circuitry.

''Please ask us for a shipping quote for the best shipping rates. Shown costs might be incorrect, or we can offer better services''

Cosmetic condition:

• Good used vintage condition
• Clean and presentable front panels
• Light scratches and age-related cosmetic marks
• Controls and switches appear complete
• Displays and indicators illuminate
• B-77 professionally serviced in August 2026
• Please inspect the photographs carefully for the exact cosmetic condition

Service Performed – Sansui B-77:

The original complaint was that not all speaker connections were functioning correctly.

Work carried out:

• Fault in the amplifier section investigated/repaired
• Speaker selector switches replaced
• Speaker relay replaced
• Amplifier PCB resoldered
• Parts of the power-supply circuitry resoldered
• Inside of the display cleaned
• Bias checked

Specs:

Sansui C-77 | Preamplifier

Specification Details Type Stereo preamplifier Frequency response 5 Hz–70 kHz Total harmonic distortion 0.03% Phono compatibility Moving magnet (MM) and moving coil (MC) Input sensitivity — MM 2.5 mV Input sensitivity — MC 0.18 mV Input sensitivity — line 150 mV Input sensitivity — microphone 7 mV Signal-to-noise ratio 80 dB (MM), 60 dB (MC), 90 dB (line) Rated preamplifier output 1 V Recording output 150 mV

Sansui B-77 | Power Amplifier

Specification Details Type Stereo power amplifier Power output 2 × 60 W into 8 Ω Frequency response 5 Hz–70 kHz Total harmonic distortion 0.03% Signal-to-noise ratio 115 dB

Dimensions (LxWxH): 430 × 222 × 247 mm
Volts: 220~240v (If it’s 200V or higher, you’ll need an adapter in the USA)

We ship worldwide.
For international shipping, import fee's apply. These vary per country, and are for the buyer to pay.
-Shipping in the EU up to 30 KG (max)
-Shipping outside of the EU up to 20 KG (max) Shown costs might vary. Please ask us for a shipping quote for the best rates!
-We kindly ask you to reach out for the best shiping rates. As rates vary per shipper, we can ask custom shipping quotes.

Please note: ‘’Whenever an item exceeds the weight noted above. Please ask for a shipping quote before making a purchase. The shipping costs are estimated in our shop because we do not know the shipping address. 

Picking up the item is also possible. It can be picked up in Alkmaar 

Delivery by us is also possible in some cases. Please reach out to us for more information about deliveries 
State of listing: If a listing is listed ''for parts or not working'' returns are not accepted.

When we offer our products with the notice ''Serviced'' or ''Fully serviced'' that means the device is either ''serviced'' with a new belt, and cleaned the pots, Or ''Fully serviced'' recapped, Quiescent current adjusted etc as expected from a full service