velleman VM100 200W Power Amplifier User Manual
- June 3, 2024
- Velleman
Table of Contents
velleman VM100 200W Power Amplifier User Manual
Thank you for purchasing this module. Please read the instructions carefully
to ensure correct and safe use of this device.
READ THE OPERATING INSTRUCTIONS IN THIS USER’S GUIDE CAREFULLY.
SPECIFICATIONS & FEATURES
FEATURES
- Excellent value for money
- Full discrete design using Epitaxial Darlington transistors
- DC supply circuit on board with LED indication
- Ideal for active speaker system or sub woofer, guitar amp, home theatre systems, instruments amp….
- Comes complete, adjusted and tested
- Overload and short circuit protection
SPECIFICATIONS
- 200W music power @ 4 ohm load
- 100Wrms power @ 4 ohm load
- 70Wrms power @ 8 ohm load
- Distortion: 0.02% @ 1KHz/10W
- Damping factor: >800
- Frequency response: 3Hz to 200KHz (-3dB)
- Sensitivity: 0.6Vrms
- Signal to noise ratio: 115dB
- Power supply: 2 X 25 – 30vac / 100 – 120VA
- PCB dimensions: 107x62mm (aprx.)
- recommended power transformer:
⇒ 230VAC input, 2 x 30VAC output type: 1230
⇒ 115 / 230VAC input, 2 x 25VAC output type : TR8040 (output power reduced by +/- 15%)
Wiring
- Use a 2 x 25 to 30Vac / 100 – 120VA transformer.
- Connect the transformer to the AC power connections of the PCB.
- The Velleman transformer colour scheme is specified on the pcb.
* Careful : Other brands may feature a different scheme !
Y: yellow, R: red, B: blue, G: grey.
* Do not change the BIAS-adjust trimmer!
-
Make sure to put a 1A T (slow-blow) fuse in series with the primary winding of the transformer (see diagram).
-
ADVICE : For safe first-time testing insert a 60W light bulb in series with the AC power and the transformer. If the light bulb lights up continuously, disconnect the transformer and check all your wiring and assembly. Reconnect the power supply. If the lamp remains off, everything is OK, replace the light bulb with a fuse.
If the TR8040 transformer is used there is a selection of primary AC voltage :
-
120Vac: black / brown.
-
230Vac : black/orange.
-
IMPORTANT : Insulate the wire that is not being used.
-
NOTE : Two amplifiers and two transformers are required for stereo. Never attempt to run two amplifiers from a single transformer!
CONNECTION
Connection:
-
The input (GND and in) can be connected directly to an audio source (pre-amp or mixing panel) or a volume control (potentiometer) can be used (see diagram).
-
Connect the speaker (4 ohm or higher) between the connections LS+ and GND.
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CAUTION : VOLTAGES OF ABOUT 80V ARE PRESENT. MAKE SURE TO USE A SUITABLE ENCLOSURE AND ISOLATE ALL AC CONNECTIONS
Belgium [Head office] Velleman Components +32(0)9 384 36 11
Modifications and typographical errors reserved – © Velleman Components nv – HVM100G – 2005 – ED1 (rev2)
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