Yes, a Marantz 2330 Bluetooth connection needs no soldering. Best path: a Bluetooth receiver with RCA output into an AUX input (180 mV into 100 kOhm per the spec sheets; note most versions carry two AUX positions). If AUX is taken, use a Tape loop. Rated 130 W/ch into 8 ohms, it is the strongest Marantz documented on this shelf, ahead of the 2325 flagship era.
Figures on this page were checked September 2026. Every table row carries its source.
What the 2330 brings
| Item | Value | Notes | Source |
|---|---|---|---|
| Production run | 1977–1980 | Approx. $790 (1977) / 2,500 DM; 65 W idle, 560 W nominal draw | HW |
| Power output | 130 W/ch @ 8 Ω | Continuous RMS; 260 W DIN into 4 ohms; THD 0.07%; damping factor 60; S/N 78 dB | HW, HE |
| Phono input | 1.8 mV / 47 kΩ | 2× phono, the Marantz house convention documented across this archive | SM |
| Line inputs | 2 × AUX · 2 × Tape | High level 180 mV / 100 kOhm per the factory manual; two AUX positions on most versions (the American model carries one); FM Quadradial output on the rear panel | SM, HW |
| Record / Pre | 775 mV · 1.5 V | Tape Out 775 mV; Pre Out 1.5 V | HE |
| Weight | 22.5 kg | The 2330B transcription block quotes the same 130 W at 0.05% and 22 kg | HE |
Source codes: SM Marantz 2330 factory service manual (archive.org manual_2330_SM_MARANTZ_EN) · HW hifi-wiki.com · HE HiFi Engine manual transcription (Wayback snapshot) · CR classicreceivers.com (2330B context only). Data as of September 2026.
The 2330's input map
AUX input
RecommendedTwo AUX positions on most versions at 180 mV into 100 kOhm make this the most generous AUX provision in this archive's Marantz shelf. A line-level Bluetooth receiver with RCA output can occupy one position and leave the other free.
Tape monitor loops
Good alternativeTwo Tape In positions share the high-level spec, and the extras are rich: 775 mV record outputs, dubbing in/out jacks, and the FM Quadradial output beside them. Run the Bluetooth feed through a loop by attaching to its play jacks, switching Tape Monitor in to listen, and switching it back out for the other sources.
Phono inputs
Not for line-levelThe two MM phono stages are cartridge inputs at 1.8 mV. Bluetooth fed in at line level would overload them, and the turntables would lose their inputs.
Getting the 2330 connected
- Pick an AUX
With two AUX positions on most versions, the Bluetooth receiver can keep one permanently; the other stays free for a streamer.
- Join and power
Bluetooth receiver RCA output to the chosen AUX, USB power supplied, and pair your phone once.
- Set the listening level
Volume down to begin, select AUX, then raise. If the adapter carries a fixed/line output mode, use it.
The fine print on the 2330
- The 2330 and 2330B share the watts, not the sheet (verified): the transcription documents both blocks, 130 W/ch at 0.07% for the 2330 and the same output at 0.05% for the B, with different dimensions and semiconductor counts. This profile stays on the non-B set.
- Two AUX positions, the shelf's best (verified): most Marantz receivers here carry one AUX; the 2330's pair (one fewer on the American model per hifi-wiki) makes it the practical pick for a Bluetooth receiver plus a second source.
- A quad output beside the pre outs (verified): the FM Quadradial jack feeds a four-channel decoder like the 2325's, an output-side provision that leaves the Bluetooth path untouched.
What you need for the 2330
- Bluetooth receiver with RCA output, LDAC or aptX HD first in the queue
- One RCA cable in the 0.5–1 m band
- A USB line to power the receiver
FAQ
Plug a Bluetooth receiver with RCA output into an AUX input and select AUX. If both AUX positions are occupied, use a Tape In loop and press the Tape Monitor button. No internal modification is needed.
Per the specification sheets: two AUX inputs (one on the American model) and two Tape In positions at 180 mV into 100 kOhm high level, and phono at 1.8 mV / 47 kOhm. Record outputs run 775 mV, with Pre Out at 1.5 V.
Continuous output is rated 130 W per channel into 8 ohms at 0.07% distortion (260 W DIN into 4 ohms) with a damping factor of 60, and the manual transcription plus period coverage of the 2330B agree on the 130-watt figure for the family.
The transcription documents both: the 2330 and the 2330B share the 130 W/ch output, with the B quoted at 0.05% distortion against the 2330's 0.07%, slightly different dimensions and semiconductor count. This profile documents the non-B 2330.
blafili B3 Bluetooth Music Receiver
RCA + XLR + optical out, LDAC and aptX HD, OLED status display. Matches the 2330 line-level inputs without adapters.
- Lineup, years, weight, price and consumption (2× AUX on most versions, 2× Tape In, Dubbing in/out, FM Quadradial output, 2 speaker pairs; 22.5 kg; 1977-1980; approx. 790 US-$ / 2,500 DM; 65 W idle / 560 W nominal): hifi-wiki.com/index.php/Marantz_2330, accessed 2026-09-25
- Factory service manual figures (Phono 1.8 mV / 47 kohms; High Level Aux and Tape 180 mV / 100 kohms; Tape Out 775 mV; Pre Out 1.5 V; THD 0.07%; damping factor 60; 130 W/ch RMS at 8 ohms): Marantz 2330 service manual (archive.org, identifier manual_2330_SM_MARANTZ_EN), accessed 2026-09-25
- Transcription blocks for both the 2330 (130 W/ch at 0.07%, 1.8 mV MM / 180 mV line, 775 mV record out, 1.5 V Pre out, 22.5 kg) and the 2330B (130 W/ch at 0.05%, 22 kg, different semiconductor count): HiFi Engine, Marantz 2330 manual page (hifiengine.com, bot-gated to direct fetches; verified via Wayback snapshot 20250820120725), accessed 2026-09-25
- Period coverage of the 2330B (produced 1977 through 1979, 130 W/ch into 8 ohms): classicreceivers.com/marantz-2330 (page titled Marantz 2330 B), accessed 2026-09-25; cited for the B-variant context only