Yes, a Yamaha CR-1020 Bluetooth connection needs no soldering. Best path: a Bluetooth receiver with RCA output into the AUX input (120 mV into 45 kOhm per the spec sheets). If AUX is taken, use one of the two Tape loops. Power is quoted at 75 W/ch into 8 ohms by hifi-wiki's service-sheet data and 70 W/ch by period coverage; both are shown, and either figure tops or matches this site's CR-1000 profile at 70 W/ch.
Figures on this page were checked September 2026. Every table row carries its source; where the two sources disagree on a number, both figures are shown with attribution.
Spec snapshot
| Item | Value | Notes | Source |
|---|---|---|---|
| Production run | 1977–1979 | Manufactured 1977; approx. 1,598 DM in German lists; 520 W consumption | HW, CR |
| Power output | 75 / 70 W/ch @ 8 Ω | 75 W continuous (90 W into 4 ohms) per service-sheet data; 70 W per period coverage; both quoted | HW, CR |
| Phono inputs | 2 × 2 mV / 47 kΩ | Per the reference sheet; note the CR-820's manual-anchored table reads 50 kOhm on its phono inputs | HW |
| Line inputs | AUX · 2 × Tape | AUX and both Tape inputs at 120 mV / 45 kOhm; Dolby FM adapter loop and Pre-Out/Main-In coupler on the rear panel | HW, CR |
| Speakers | 3 pairs | Damping factor 40; S/N 100 dB per the reference sheet | HW |
| Weight | 18.3 kg | Between the CR-820 and the CR-1000 profiles on this site | HW |
Source codes: HW hifi-wiki.com · CR classicreceivers.com. Data as of September 2026. The two sources' power figures disagree by a small margin and both are printed here with attribution.
Where to connect
AUX input
RecommendedOne always-active line input at 120 mV into 45 kOhm, the same line-input table the CR-820 carries. Any line-level Bluetooth receiver with RCA output drives it cleanly; the level check still earns its minute.
Tape monitor loops
Good alternativeTwo tape inputs at the same 120 mV line spec, with a Dolby FM adapter loop and a Pre-Out/Main-In coupler on the rear panel per period coverage. Feed a loop's play jacks, select the tape position to listen, and switch the monitor back off for the other sources.
Phono inputs
Not for line-levelTwo phono stages at 2 mV. Line-level Bluetooth output would overload them, and the turntables would lose their inputs.
Set up in three steps
- Pick AUX
Keep the tape loops free for recorders; AUX is the natural Bluetooth home.
- 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
- Two wattage figures, both printed (verified): 75 W per hifi-wiki's service-sheet data and 70 W per period coverage describe the same amplifier from different measurement habits. The page shows both, attributed, instead of averaging history.
- The CR-820's AUX table, repeated (verified in part): the AUX and tape figures, 120 mV / 45 kOhm, match the CR-820 profile exactly; the phono impedance differs by 3 kOhm, 47 here against that set's 50. The level check guidance carries over unchanged.
- A coupler worth knowing (verified): period coverage lists a Pre-Out/Main-In coupler among the rear-panel features, the same jumper arrangement the Marantz profiles document, and it stays in place for a standard Bluetooth setup.
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 taken, use a Tape input through the tape monitor. No internal modification is needed.
Per the specification sheets: AUX and both Tape inputs take 120 mV into 45 kOhm, matching the CR-820's table, and the two phono inputs take 2 mV into 47 kOhm, where the CR-820's manual-anchored table reads 50 kOhm. Pre-Out and Main-In couplers are on the rear panel per period coverage.
Both figures are on record: hifi-wiki's service-sheet data says 75 W into 8 ohms (90 W into 4 ohms), and period coverage says a hefty 70 W. This page shows both rather than picking, the same treatment the SX-727's 40-versus-37 figures get.
Period coverage calls it the younger brother of the CR-3020 and CR-2020, and against this site's profiles it tops or matches the CR-1000's 70 W/ch depending on which power figure you quote, and sits well above the CR-820's 55 W/ch.
blafili B3 Bluetooth Music Receiver
RCA + XLR + optical out, LDAC and aptX HD, OLED status display. Matches the CR-1020 line-level inputs without adapters.
- Full specification sheet (2× Phono 2 mV / 47 kOhm; Aux 120 mV / 45 kOhm; Tape 2 × 120 mV / 45 kOhm; continuous 75 W/ch at 8 ohms and 90 W at 4 ohms; THD 0.01%; damping factor 40; weight 18.3 kg; 1977-1979; approx. 1,598 DM; 520 W consumption; 3 speaker pairs): hifi-wiki.com/index.php/Yamaha_CR-1020, accessed 2026-09-25
- Manufactured 1977, "puts out a hefty 70 watts per channel" with rated THD 0.1%, retailed around $540, younger brother of the CR-3020 and CR-2020, input lineup Phono 1+2 / Aux / Tape 1+2 Playback+Record / Dolby FM Adapter In+Out / Pre-Out Main-In coupler: classicreceivers.com/yamaha-cr-1020, accessed 2026-09-25