• COM24 - Public address amplifier 240W 100V
  • COM24 - Public address amplifier 240W 100V


Public address amplifier 240W 100V
  • 2 unbalanced stereo line inputs
  • 6 x Microphone input
  • Priority audio inputs with phantom power
  • Terminal block output connections
  • Amplifier link in-& outputs
  • Remote inputs, chime & mute contacts
  • 5-zone output selector
  • Low impedance & constant voltage output
  • Table top or 19" rack installation
5 years
Where to buy?

The COM series public address mixing amplifiers are providing an ideal solution for small to medium size commercial sound systems. Different configurations in terms of output power and connectivity provide enormous flexibility for numerous applications. The COM24 is capable of delivering an output power of 240 Watt to 100 Volt constant voltage systems or 4 Ohm low impedance loads. Six input channels with individual level control allow connectivity and mixing to a wide variation of music sources. Four balanced microphone inputs (XLR)containing phantom power (15V) and two priority allow connection for almost any (dynamic or condenser)microphone. Two inputs selectable between stereo unbalanced line (RCA) and microphone (6.3mm Jack) allow connection for any source such as CD-player, music computer or portable device, or enable to expand the total microphone count to 6. The remote microphone and tele-paging inputs allow expansion of the system with a paging station(with chime tones) or couple the system with your business telecom system (or any other priority line source). Using the priority mute contact, coupling and muting can be done through an external fire alarm system. The output level can be adjusted using a master volume control accompanied with 2-band tone regulation. The level is indicated with a 5-segment VU-barwhile output selection is made possible using an integrated 5-zone speaker switcher. Both table-top installation or 19” (2HE) equipment rack mounting is made possible using the included adapters.

5-Zone output selector
Master volume with 2-band tone control
Individual input volume / mixing control
Included rack ears for 19" rack mounting
Terminal block output connections for 5 zone outputs (Hi-Z)
Terminal block 4Ω output connection
Mic / line inputs with priority (2x) & Phantom (4x)
Mic / line inputs
Remote inputs, chime & mute contacts
Link in- & outputs
COM24 - Public address amplifier 240W 100V

Technical specifications

Available models
COM24MK2-UK UK plug
COM24MK2 MK2 version
System specifications
RMS/AES power handling 240 W
Frequency Response (± 3 dB) 20 Hz - 20 kHz
Signal / Noise > 90 dB
THD+N (@ 1 kHz) < 0.5%
Crosstalk (@ 1 kHz) > 70 dB
Technology Class-D
Power Supply Transformer
Source 230 ~ 240 V AC / 50 ~ 60 Hz
Common mode rejection ratio 70 dB
Inputs Balanced Microphone 1 - 4 Type 4 x Balanced Mic./Line (-6 dB / -50 dB)
Connector 2 x XLR/Jack Combo & 2 x XLR
Other 4 x 15 V DC Phantom & 2 x Priority
Balanced Microphone 5 Type 1 x Balanced Mic./Line (-6 dB / -50 dB)
Connector 6.3 mm Jack
Unbalanced Stereo Type 1 x Stereo Unbalanced Line (+14 dB / -30 dB)
Connector RCA
Other Remote mic (Priority mic + chime)
Tele-paging (Priority line)
Priority mute contact
Outputs Connector 2-pin Euro Terminal Block (Pitch - 5.08 mm)
10-pin Euro Terminal Block (Pitch - 5.08 mm)
Voltage / Impedance 100 V / 4 Ω
Protection DC Short circuit
Over heating
Over load
Signal limiting
Cooling Convection cooled
Operating temperature 0° ~ 40° @ 95% Humidity
Product Features
Dimensions 16.54 x 3.46 x 12.60 " (W x H x D)
Weight 24.25 lb
Mounting 19” / 2 HE or tabletop
Construction Steel
Colours Black
Accessories Included 19” Rackmount adapter



As the power consumption of an amplifier, strongly depends on how hard the amplifier is driven, measurements are provided for various loads: idle, 1/8 of average full power, 1/3 of average full power, and full power.

Current draw at idle or with very low signal level

1/8 Power: Pink Noise
Amplifiers are tested using pink noise signals to simulate real-world speech and music signals.  It approximates operating with music or voice with light clipping and represents the amplifier's typical "clean" maximum level, without audible clipping. This 1/8 power signal provides a very good approximation of how hard an amplifier would be driven by typical real-world speech/music signals, assuming those signals were being driven as loud as possible without clipping the amplifier.

1/3 Power: Pink Noise
1/3 Power Pink Noise is similar to 1/8 Power Pink Noise, except that it is a significantly more powerful input signal. It approximates operating with music or voice with very heavy clipping and a very compressed dynamic range. This 1/3 power signal provides an approximation of how hard an amplifier would be driven by typical real-world speech/music signals, assuming those signals were being driven loud enough to clip the amplifier heavily, and produce severe, audible distortion.

Full Power
Current draw at full power is measured with a sine wave at its maximum possible level. However, it does not represent any real-world operating condition and represents the absolute extremes that an amplifier could ever experience.


Heat dissipation is the process by which electronic devices like amplifiers and processors release the heat they generate during operation to prevent overheating. This data is important because it ensures devices perform efficiently, last longer, and are safe to use. To calculate heat dissipation, you measure the device's power consumption (in watts) and use the thermal resistance (how well the device transfers heat) to determine how much heat needs to be managed. This information helps design proper cooling systems, ensuring the device remains within safe temperature limits.

The heat dissipation list for all Audac devices is in the link below.



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