What is the AUDAC COM108 public address amplifier?
The AUDAC COM108 is a compact public address mixer amplifier delivering 80 W to a 70V or 100V speaker line or a 4 Ω load. It mixes one balanced mic input with one stereo line input. It is a simple, low-cost choice for small retail stores, cafes, offices and reception areas.
How does the AUDAC COM108 public address amplifier work?

The COM108 uses class-D amplification in a half-rack, convection-cooled chassis, so it runs silently on a shelf or two-up in a rack with the optional adapter. The balanced mic input has priority and 15 V phantom power, so announcements override background music from the RCA or 3.5 mm line input. A priority mute contact ties in a fire alarm. Speakers connect to a 4-pin terminal block with 4 Ω, 70V and 100V taps, and protection covers short circuits, overheating, overload and clipping. For smaller spaces, see the COM104.
What are the key features of the AUDAC COM108 public address amplifier?
- 80 W output — to 70V, 100V or 4 Ω.
- Priority mic input — balanced, with 15 V phantom power.
- Stereo line input — RCA or 3.5 mm.
- Priority mute contact — fire-alarm override.
- Class-D, convection cooled — quiet and efficient.
- Half-rack size — tabletop or 19 in rack with adapter.
- Warranty — backed by a 5-year AUDAC manufacturer warranty.
Where is the AUDAC COM108 public address amplifier typically used?
- Conference room
- Huddle room
- Commercial meeting space
- Training room
Technical Specifications
| Model | COM108 |
| Power (AES) | 1 x 80 W |
| Output | 70V / 100V / 4 Ω, 4-pin Euro terminal block |
| Mic input | 1 x balanced, 3-pin Euro terminal, 15 V phantom |
| Line input | 1 x stereo unbalanced, RCA / 3.5 mm |
| Frequency response (±3 dB) | 20 Hz – 20 kHz |
| Signal/noise | > 90 dB |
| THD+N | < 0.5% (1/2 rated power) |
| Technology | Class-D |
| Power | 100–240 V AC, 50/60 Hz, switching |
| Cooling | Convection |
| Operating temperature | 0–40 °C, 95% humidity |
| Dimensions | 8.56 x 1.72 x 11.81 in (W x H x D) |
| Weight | 6.61 lb |
| Mounting | Half 19 in / 1RU or tabletop |
| Warranty | 5 years |
Frequently Asked Questions
Can it run 70V ceiling speakers?
Yes. Total speaker taps should stay under 80 W.
Does mic audio override music?
Yes, the mic input has priority.
What speakers work with the COM108?
It drives 70V or 100V ceiling speakers (up to 80 W total) or a 4 Ω load. Browse matching AUDAC speakers in the AUDAC collection.
What warranty does the COM108 carry?
AUDAC covers it with a 5-year manufacturer warranty.
Can Creation Networks install the COM108?
Yes. We design, install, program and support AUDAC systems nationwide. Call (888) 230-3661.
At Creation Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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