Amplifier Classes
There have been many developments in audio electronics, resulting in different amplifier circuit designs. Such designs can be divided into classes, of which 4 main types are relevant to audio – A, AB, H and D.
UA Series Compact 100V Mixer-Amplifiers
953.189UK
UA90
100V mixer-amplifiers with an integral mixer in a half width 1U housing. 3 switchable mic/line inputs, an RCA line input and a 3.5mm Aux input are governed by front panel volume controls and a Mast...
- Supplied with hardware for rack-mounting 2 units
- 5 input channels
- 24V fire alarm mute contacts
UA Series Compact 100V Mixer-Amplifiers
100V mixer-amplifiers with an integral mixer in a half width 1U housing. 3 switchable mic/line inputs, an RCA line input and a 3.5mm Aux input are governed by front panel volume controls and a Master output control. Mono output to either 100V line or 8 ohms speaker load is connected via a removable screw terminal connector on the rear panel. Supplied with rack-mounting hardware which can be configured to mount a single unit against a wall or under a worktop. Designed as a versatile solution for small to medium PA installations.
- Supplied with hardware for rack-mounting 2 units
- 5 input channels
- 24V fire alarm mute contacts
- 100V line or 8 Ohms operation
- Switchable +20V phantom power CH1
- Power supply 170-264Vac, 50Hz (IEC)
- Amplifier : construction Class D + transformer output
- Inputs Mic/line (combo), 2 x mic/line (6.3mm), line (RCA), aux (3.5mm)
- Phantom power +20V CH1 (XLR or rear terminals)
- Line output 2 x RCA (mono)
- Speaker output Euroblock terminals: 100V / 8 Ohms / Com
- Mute 24V relay contacts
- THD <0.4% @ 1kHz
- Input impedance 1k Ohms (mic/line)
- Input sensitivity -10dB (line), -45dB (mic)
- SNR 80dB (line), 75dB (mic)
- Frequency response 100Hz - 18kHz
Versions
| 953.183UK | 953.186UK | 953.189UK | |
|---|---|---|---|
| Output power : rms | 30W | 60W | 90W |
| Dimensions | 249 x 210 x 44mm | 269 x 210 x 44mm | 300 x 210 x 44mm |
| Weight | 2.35kg | 2.47kg | 2.99kg |
Support : articles
Power Ratings: RMS vs Max vs Peak
A summary explaining the key differences between RMS, Max and Peak power ratings.
In the box
The box for this item contains :
- UA series compact 100V amplifier
- IEC power lead(s)
- Rack-mounting hardware
Downloads
Instruction manual
For 953.189UK (481KB)
For 953.189UK (481KB)
UK Declaration of conformity
For 953.189UK (251KB)
For 953.189UK (251KB)
EU Declaration of conformity
For 953.189UK (240KB)
For 953.189UK (240KB)
