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.
A2 Stereo PA Amplifier 2 x 200W
953.402UK
A2
Fully featured stereo amplifier with mixer section for 2 microphones and a stereo audio source. An inbuilt media player section offers playback of mp3 audio tracks from USB drive or SD card and als...
- Media player with USB/SD playback
- FM radio tuner with external aerial connection
- Bluetooth receiver
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953.402UK
A2 Stereo PA Amplifier 2 x 200W |
A2 Stereo PA Amplifier 2 x 200W
Fully featured stereo amplifier with mixer section for 2 microphones and a stereo audio source. An inbuilt media player section offers playback of mp3 audio tracks from USB drive or SD card and also has a Bluetooth receiver and FM radio tuner. A rotary switch selects between 2 rear stereo inputs, a front 3.5mm stereo input or the built-in media player. Speaker connections on the rear panel are via 4mm binding posts, which can drive up to 2 x 8 Ohm speakers per channel to deliver 2 x 200W. Designed to offer installers a flexible solution for P.A. and music playback in bars, restaurants and function rooms.
- Media player with USB/SD playback
- FM radio tuner with external aerial connection
- Bluetooth receiver
- Power supply 230Vac, 50Hz (IEC)
- Fuse F5A, 250V
- Output power rms @ 4 Ohms 2 x 200W
- Output power rms @ 8 Ohms 2 x 100W
- Amplifier : construction Class D
- Frequency response 20Hz - 20kHz ±0.5dB
- Microphone inputs 2 x 6.3mm jack (mono)
- Line inputs Line 1: L+R (6.3mm jack/RCA), Line 2: L+R (RCA)
- Input sensitivity : line 0.775Vrms
- Auxiliary input 3.5mm stereo jack
- Input sensitivity : aux 0.480Vrms
- Input impedance 20k Ohms (balanced), 10k Ohms (unbalanced)
- Audio source USB/SD mp3 playback, FM tuner, BT receiver
- Bluetooth version 2.3
- Input controls Aux, Media, Line1, Line2, Mic1, Mic2, Talkover
- Line output 2 x RCA
- Speaker outputs 4mm binding posts (2 channels)
- Antenna connection F type (FM tuner)
- Output controls Source select, Bass, Treble, Ch1, Ch2
- Dynamic range 92dB
- THD +N <0.1%
- Protection Thermal, over-current, over-voltage, short-circuit
- Dimensions 482 x 260 x 88mm
- Weight 5.21kg
Support : articles
Power Ratings: RMS vs Max vs Peak
A summary explaining the key differences between RMS, Max and Peak power ratings.
Wireless Audio
A description of various wireless technologies available to musicians, presenters and performers
In the box
The box for this item contains :
- A2 stereo amplifier
- IEC power lead
Videos
Adastra A2 Stereo PA Amplifier 2 x 200W - 953.402UK
Downloads
Instruction manual
For 953.402UK (468KB)
For 953.402UK (468KB)
UK Declaration of conformity
For 953.402UK (253KB)
For 953.402UK (253KB)
EU Declaration of conformity
For 953.402UK (240KB)
For 953.402UK (240KB)
