Yes, a Bogen C100C Bluetooth connection is an RCA-to-aux job. The two rear AUX inputs are high-impedance jacks that the manual feeds with a phono plug, so a receiver with an RCA output connects straight in. The 100-watt output serves 4 ohm, 16 ohm, 25VCT and 70-volt speaker systems, and the built-in microphone-precedence circuit ducks music whenever a page happens.
Figures on this page were checked October 2026. The factory manual is a scanned document; every quoted line was read from the rendered pages.
Spec snapshot
| Item | Value | Notes | Source |
|---|---|---|---|
| Power output | 100 W RMS | C100C rating; the series covers 35 W and 60 W siblings | Manual |
| Frequency response | 80 Hz-10 kHz ±2 dB | Distortion under 2% at rated power output, 100 Hz-10 kHz | Manual |
| Mic inputs | 2 × Lo-Z balanced | 300 µV sensitivity, screw terminals | Manual |
| Aux inputs | 2 × Hi-Z, 150 mV | Jacks; the WMT-1 instructions land a phono plug in AUX 1 or AUX 2 | Manual |
| Outputs | 4 Ω, 16 Ω, 25VCT, 70 V | 70 V line presents 49 Ω; screw terminal per impedance plus COM | Manual |
| Precedence | Mic over AUX 2 | Built in; SPST switch (customer-supplied) on the AUX 2 MUTE terminals | Manual |
| Controls | MIC 1, MIC 2/AUX 1, AUX 2, bass, treble | Front selector picks MIC 2 or AUX 1 on the shared knob | Manual |
| Tape/booster out | RCA jack | Single-conductor shielded patch cord under 35 feet per manual | Manual |
| Power | 120 VAC, 60 Hz | 250 W draw; circuit breaker plus 105°C thermal breaker | Manual |
| Size, weight | 14-1/2" W, 3-3/4" H, 11" D | 22 lb shipping weight; RPK-50 rack kit available | Manual |
Source code: Manual = Bogen C35C/C60C/C100C factory manual, accessed 2026-10-08.
Where to connect
AUX 1 or AUX 2, phono-plug compatible
RecommendedThe two AUX inputs take any signal source with a high-level output, and the manual's own WMT-1 walk-through lands a phono plug in AUX 1 or AUX 2, which is exactly an RCA receiver's connector. AUX 2 carries the precedence feature, so music on AUX 2 ducks under a page when the mute switch closes.
Keep the tape out for a bigger room
Good alternativeThe TAPE/BOOSTER jack carries the program feed onward, which the manual describes for tape recording and for driving a booster amplifier. A second amplifier and its own wireless source can pick the room up from there without disturbing the C100C's mix.
Mic inputs as a music feed
Not supportedThe MIC inputs are low-impedance balanced terminals with 300 µV sensitivity, built for microphones. A line-level music source does not belong there, and the receiver has no business needing them with two AUX inputs free.
Set up in three steps
- Pick the aux lane
With both auxiliaries in use, the front MIC 2/AUX 1 selector switch goes to the AUX 1 mode per the operation section, and the receiver lands in AUX 2 to gain the page-ducking feature.
- Wire the speakers to the right terminal
One lead to the terminal matching the load (4 Ω, 16 Ω, 25VCT or 70 V) and the other to COM. Balanced lines remove the COM-GND link; Class 2 wiring is allowed.
- Set levels and listen
Per-input volume controls set the music against the mics, and the bass and treble knobs trim the room. Quiet passages quiet, loud passages clean, page check with the mute switch.
Quirks and notes
- Page ducking needs the switch (verified): precedence over AUX 2 is built in, but the manual asks for a customer-supplied normally-open SPST switch across the AUX 2 MUTE terminals. No switch, no duck.
- Two breakers, two behaviors (verified): the circuit breaker resets by pressing its red button after moving the power switch off; the 105°C thermal breaker self-resets after about two minutes and repeats mean an output or ventilation problem.
- Balanced lines change one jumper (verified): removing the COM-GND link converts the output for balanced lines, and shields land on GND.
- Nothing serviceable inside (manual caution): the manual warns there are no user-replaceable parts within the unit and internal servicing belongs to qualified personnel only.
- No wireless anywhere in the manual (verified): the five factory pages describe no Bluetooth or wireless input of any kind; Bluetooth arrives with the receiver at the AUX jacks.
What you need
- Bluetooth receiver with an RCA output, aptX HD preferred for source quality
- One RCA cable to AUX 1 or AUX 2
- Speaker wire to the impedance terminal strip, plus an SPST switch if page ducking is wanted
- Optional WMT-1 transformer only when a 500/600-ohm or telephone line interface is in the picture
FAQ
Plug the RCA output of a Bluetooth receiver into AUX 1 or AUX 2 on the rear panel, connect speakers to the impedance terminal that matches the load plus COM, and set the front-panel selector to AUX 1 mode when both auxiliaries are in use. Each input keeps its own volume control, so the music level sits independent of the microphones.
Yes, by design. A built-in circuit gives the microphones precedence over the AUX 2 input, and the manual asks for a customer-supplied normally-open SPST switch wired to the AUX 2 MUTE terminals: when the contacts close, the microphone takes over and the music ducks.
The C100C output strip serves 4 ohm and 16 ohm low-impedance loads plus 25VCT and 70-volt constant-voltage lines, with the 70-volt tap presenting 49 ohms. One speaker lead lands on the impedance terminal that matches the system and the other on COM, per the manual.
Yes. For balanced output lines the manual says to remove the link between the COM and GND output terminals, and shielded lines tie their shield to GND. The manual also notes Class 2 wiring may be used for the speaker runs.
blafili B3 Bluetooth Audio Receiver
RCA output for the AUX jacks plus XLR, optical and coaxial when the rack grows, on the QCC5125 and ES9018K2M DAC platform.
- Bogen C35C, C60C and C100C Solid-State Public Address Amplifiers factory manual (5 pages): power output (C100C 100 W RMS), frequency response 80 Hz-10 kHz ±2 dB, distortion under 2% at rated power output, input sensitivity MIC 300 µV Lo-Z balanced / AUX 150 mV, outputs 4 and 16 Ω plus 25VCT and 70 V (49 Ω), microphone precedence over AUX 2 with customer-supplied SPST switch on the AUX 2 MUTE terminals, phono-plug connection to AUX 1/AUX 2 per the WMT-1 instructions, the Class 2 wiring note and the balanced-output COM-GND link removal, TAPE/BOOSTER output jack, circuit breaker and 105°C thermal breaker behavior. bogen.com/sites/default/files/2021-01/c35c_c60c_c100c.pdf, accessed 2026-10-08
- Bogen Resource Library entry listing the C35C/C60C/C100C manual: bogen.com/resource-library, accessed 2026-10-08