Low Impedance
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Adastra A4 Dual Stereo Mixer Amplifier with Bluetooth

SKU: 953.404

£169.00 + VAT    £202.80 incl. VAT

4 x 100w into 8Ω low impedance 4-zone digital amplifier with Bluetooth & media player

1 in stock

Bluetooth
Radio DAB
SD
USB Type A
Low Impedance 4 Ohms
Low Impedance 8 Ohms
Stereo
Remote

PDF

Description

Adastra A4 dual stereo (4-zone) mixer amplifier with Bluetooth

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 4 x 200W with the A4 amplifier. Designed to offer installers a flexible solution for P.A. and music playback in bars, restaurants, function rooms and the home.

See the ‘User Manuals’ tab on the left of this page – as manufacturers are making instruction sheets and user manuals available for download only and your purchase may not include a printed version.

  • 4 zone, dual stereo version
  • Power consumption max.: 360W
  • Output power rms @ 4 Ohms: 4 x 200W
  • Output power rms @ 8 Ohms: 4 x 100W
  • Media player with USB/SD playback
  • FM radio tuner with external aerial connection
  • Bluetooth receiver
  • Power supply: 230Vac, 50Hz (IEC)
  • Fuse: F5A, 250V
  • 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
  • Input controls: Aux, Media, Line1, Line2, Mic1, Mic2, Talkover
  • Antenna connection: F type (FM tuner)
  • Dynamic range: 92dB
  • THD +N: <0.1%
  • Protection: Thermal, over-current, over-voltage, short-circuit
  • Dimensions: 482 x 240 x 88mm
  • Line output: 4 x RCA
  • Speaker outputs: 4mm binding posts (4 channels)
  • Output controls: 2 x source select, 2 xBass, 2 xTreble, Ch1, Ch2, Ch3, Ch4
  • Weight: 5.95kg

Additional information

Weight5.95 kg
Dimensions24 × 48.2 × 8.8 cm
Output (RMS)

400W

Zones

4

Media Playback

Bluetooth, FM Radio, SD Card Slot, USB (Type A) Slot

Connection

6.3mm Jack, RCA Phono, Screw Terminals

Colour

Black

Condition

New

Brand

Adastra

Adastra was founded in 1949 and has earned a reputation for high quality public address sound products. Meeting the needs of the commercial PA sector for over 60 years the Adastra name is known for quality and value. Adastra is the choice for 100v line PA sound, zone paging PA and induction loop equipment. The Adastra range includes mixer & slave amplifiers, ceiling, cabinet & horn loudspeakers, desk paging & handheld microphones, equipment racks, cables, stands and accessories. Our professional and commercial sound products, wireless microphones and induction loops are carefully chosen for sale on our website by Sound Services – not everything from every manufacturer is there. Based on feedback, customer reviews and our own observations we list items that are popular, reliable and good value for money. If there are products not shown on our website that you feel we may be able to quote for, please just ask!

User Manuals

What's in the Box?

  • A4 dual stereo amplifier
  • IEC power lead

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