Yes, a Sansui 5050 Bluetooth connection needs no soldering. Best path: a Bluetooth receiver with RCA output into the AUX input (150 mV line level, shared with Tape Play per the manual). If AUX is taken, use a Tape loop. The rated 30 W/ch into 8 ohms is the number to size speakers against on this light, single-phono set.
Figures on this page were checked September 2026. Every table row carries its source.
Spec snapshot
| Item | Value | Notes | Source |
|---|---|---|---|
| Production run | 1977–1979 | Period listings date it to 1977; hifi-wiki runs the model to 1979 | HW, CR |
| Power output | 30 W/ch @ 8 Ω | Min RMS, both channels driven, 20-20,000 Hz, 0.5% THD; 33 W into 4 ohms | OM, CR |
| Phono input | 2.5 mV / 50 kΩ | Max input 160 mV at 1 kHz below 0.5% THD; front microphone input also on the panel | OM, HW |
| Line inputs | 1 × AUX · 2 × Tape | Tape Play and AUX rated 150 mV / 50 kOhm; second loop on DIN with 30 mV record level | OM, HW |
| Speakers | 2 pairs | Damping factor approx. 45 at 8 ohms | HW, OM |
| Weight | 10.1 kg | The lightest receiver in this site's Sansui set | HW |
| Original price | ≈ 1,198 DM | German list; US figure not verified | HW |
Source codes: OM Sansui 5050 owner's manual (archive.org sansui-5050-manual-multilangual) · CR classicreceivers.com · HW hifi-wiki.com. Data as of September 2026.
Where to connect
AUX input
RecommendedThe single AUX is the 5050's only always-active spare line input, rated 150 mV / 50 kOhm alongside Tape Play in the manual. A line-level Bluetooth receiver with RCA output sits in cleanly.
Tape monitor loops
Good alternativeTwo loops, one on pin jacks and one on a DIN socket with a 30 mV record level. For Bluetooth, the pin-jack Tape Play is the simple path; select the tape position to listen and switch the monitor back off afterwards.
Phono or microphone input
Not for line-levelThe phono stage expects a cartridge's 2.5 mV and clips near 160 mV, and the microphone input expects a mic. Line-level Bluetooth output would overload either.
Set up in three steps
- Pick AUX
With only one AUX, keep it for Bluetooth and leave the recorders to the tape loops.
- Connect and power
Bluetooth receiver RCA out to AUX, USB power attached, pair once with your phone.
- Level check
Volume low, select AUX, then raise. Fixed/line output on the adapter if it offers the option.
Quirks and notes
- One AUX is the constraint (verified): the 5050's lineup is one AUX, Phono, Tape Play and a microphone input, and the bigger Sansuis on this site add a second phono input rather than extra high-level spares, so plan the single AUX around your most-used source.
- DIN on the second loop (verified): the manual puts Tape 2 REC/PLAY on a DIN socket at 30 mV, the European-deck convention, with the pin-jack Tape 1 pair at 150 mV. Bluetooth wants the pin jacks.
- Honest 30-watt rating (verified): the manual's figure is a real both-channels-driven, full-bandwidth number at 0.5% distortion, not an inflated one-kilohertz peak. With 10.1 kg of receiver, that candour matches the hardware.
What you need
- Bluetooth receiver with RCA output, LDAC or aptX HD preferred
- 0.5–1 m RCA cable
- USB power for the receiver
FAQ
Plug a Bluetooth receiver with RCA output into the AUX input and select AUX. If AUX is occupied, use a Tape Play input through the tape monitor. No internal modification is needed.
One. The manual and the spec sheets list a single AUX alongside Phono, Tape Play and a microphone input, so AUX is the only always-active spare line input if both tape loops are in use.
Its rated output is 30 W per channel into 8 ohms, both channels driven from 20 Hz to 20 kHz at no more than 0.5% distortion, with 33 W into 4 ohms. With reasonably sensitive speakers it plays a normal room comfortably.
The 5050 shipped with European DIN convention on its second tape loop: the manual lists Tape 2 REC/PLAY on a DIN socket at 30 mV alongside the pin-jack Tape 1 pair. For Bluetooth, use the pin-jack connections; DIN adapters exist but are rarely worth it.
blafili B3 Bluetooth Music Receiver
RCA + XLR + optical out, LDAC and aptX HD, OLED status display. Matches the 5050 line-level inputs without adapters.
- Rated power (30 W/ch into 8 ohms, 33 W into 4 ohms, Min RMS both channels driven 20-20,000 Hz at 0.5% THD; 33/35 W at 1 kHz), input sensitivity (Phono 2.5 mV / 50 kOhm, max 160 mV; Tape Play and AUX 150 mV / 50 kOhm), tape outputs (Tape 1/2 REC 150 mV, Tape 2 REC/PLAY DIN 30 mV), damping approx. 45: Sansui 5050 owner's manual, multilingual edition (archive.org, identifier sansui-5050-manual-multilangual), accessed 2026-09-24
- Production years 1977-1979, weight 10.1 kg, approx. 1,198 DM, input and output lineup (1 Phono, 1 Aux, 2 Tape In with one DIN, Dolby NR/4-Ch adapter, microphone, 2 speaker pairs): hifi-wiki.com/index.php/Sansui_5050/590, accessed 2026-09-24
- Year 1977, 30 watts per channel: classicreceivers.com/sansui-5050, accessed 2026-09-24