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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 mmVolts: 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
A classic Sansui power amp with real collector pull, but this asking price is ambitious against the recent used market. With a median at USD 345 and the upper quartile at USD 581, USD 795 sits meaningfully above the normal band, so it only makes sense if this one is exceptionally clean, fully serviced, and complete.
What makes it appealing is the B77’s reputation for sturdy build, confident drive, and the sort of warm, authoritative presentation Sansui fans chase. If it’s original, unmolested, and recently recapped or bench-checked, that can justify a premium; otherwise, the buyer should expect to pay for condition rather than value. At this level, proof of service and channel health matter more than cosmetics.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Sansui, a pioneering Japanese audio brand, traces its origins to 1947 when it was founded in Tokyo by brothers Sakurai and Shunichi Yamamoto. Emerging from post-war Japan, the company quickly established itself as an innovator in consumer electronics, leveraging precision engineering to craft components that rivaled Western counterparts. Its heritage is rooted in the golden era of hi-fi, where Sansui's commitment to sonic purity helped define Japan's rise as a global audio powerhouse.
The brand excelled in a broad spectrum of hi-fi categories, with particular renown for its integrated amplifiers, receivers, and tuners that delivered warm, dynamic sound. Sansui also produced acclaimed speakers, turntables, cassette decks, and later digital converters, emphasizing robust build quality and innovative features like direct-coupled circuitry for low distortion. These products catered to audiophiles seeking balanced performance across analog and early digital domains.
Today, Sansui holds a cherished position in the vintage collector market, revered for its mid-to-high-end gear from the 1970s and 1980s—icons like the AU-series amps remain sought after for their musicality and reliability. While no longer a frontline manufacturer, its legacy endures among discerning buyers restoring classics or hunting timeless performers, blending nostalgia with enduring value.
See all Sansui listings on RADAR.
