Amplifier universal KEMO M033N

Robust amplifier module for universal use. The module is cast humidity-proof and shake-proof. The casting compound and the module case consist of a special, highly heat-conductive plastic. So no additional heat sinks are needed. The module is protected electronically against overheating and overload.

Assembly instructions:

The module has to be connected according to the drawing. The cable towards the volume control (not attached) should be maximally 10 cm long. The operating voltage may range from 8 to 20 volt (battery or stabilized power supply). Please make sure that sufficient electric power (max. 800 mA) is available. So don’t use too weak batteries or power supplies! The maximum power of 18 W will only be reached at 20 volt and a 4-ohm loudspeaker. In case of lower operating voltages and / or higher resistive loudspeakers, the power decreases correspondingly. If the input signal is fed with a cable longer than 10 cm, a shielded cable has to be used. The shielding of the cable is connected to earth (negative pole of the power supply connection at the module). If signal sources with a too low output power (e.g. dyn. microphones) are connected, it is necessary to connect a preamplifier (e.g. Kemo M040N) in series.

Attention: A too high operating voltage (> 20 V/DC) and a too low loudspeaker load (< 4 ohm) will destroy the module! As a precaution, please check the operating voltage as there are „unstabilized“ power supplies which have a too high “open circuit voltage”! Although the module is „short circuit-proof“ for a short time, a too low loudspeaker impedance will cause a defect in the long run. Since the function of each module has been checked carefully before dispatch, replacement at our expense is not possible for the above reasons!

Use as directed:

Amplification of weak AF signals for loudspeaker reproduction.

Technical data:

• Operating voltage: 8 - 20 V/DC

• Current consumption: max. 800 mA

• Input sensitivity: < 80 mV
• Loudspeaker connection: 4 - 16 ohm
• Music power: max. 18 W with 20 V at a 4-ohm loudspeaker
• Frequency response: approx. 40 - 20.000 Hz
• Dimensions: approx. 70 x 36 x 23 mm