Inta Audio
British Sterling
0 Items
£0.00 (inc. VAT)
Live Chat
02476 36 98 98
Adastra A4 4 Channel Stereo PA Amplifier, 4x 200W, 4Ohm with Bluetooth
  • Adastra A4 4 Channel Stereo PA Amplifier, 4x 200W, 4Ohm with Bluetooth
  • Adastra A4 4 Channel Stereo PA Amplifier, 4x 200W, 4Ohm with Bluetooth
  • Adastra A4 4 Channel Stereo PA Amplifier, 4x 200W, 4Ohm with Bluetooth

Adastra A4 4 Channel Stereo PA Amplifier, 4x 200W, 4Ohm with Bluetooth

Code: 953.404
0 Stars 0 reviews

Read Reviews

  • Independent stereo playback to 2 separate zones
  • Media player with USB/SD playback
  • FM radio tuner with external aerial connection
  • Bluetooth receiver
Read Full Description
RRP: £199.00 (inc. VAT)
Save: 20%
Your Price: £159.00 (inc. VAT)
Item in Stock  |  Usually dispatched within 24 hours
  • Delivery Information
  • Standard Delivery - (FREE UK Delivery)
  • Express Delivery Available
Add to Bag
This product has been added to your basket...
  • Continue Shopping
  • Checkout

Adastra A4 4 Channel Stereo PA Amplifier, 4x 200W, 4Ohm with Bluetooth

The Adastra A4 4 Channel Stereo Amplifier is a great choice for small Cafes, Offices, Restaurants & shops looking to install a background music sound system or foreground system. The amplifier offers 2 zones across 4 channels each with independent volume adjustment, allowing for complete control across the whole system.

4x channels at a minimum of 4 ohms allow for a large variety of speakers to be connected. Each channel has individual volume control and an LED signal indicator.

Where the Adastra A4 shines is its zonal capabilities. Channel 1/2 & 3/4 are split into groups with further control. Each pair of channels has EQ control, and source selection meaning different audio sources can be played on each pair of channels.

There are 3x stereo inputs, 2x RCA and an L & R 1/4" (6.35mm) Jack, and 2x Mono 1/4" (6.35mm) Jack inputs, indicated as Mic 1 and Mic 2. 

There is also a stereo RCA line out, which can be used to expand the system as this will allow you to send the input source to another amplifier, or compatible active sub.

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. 

Power supply: 230Vac, 50Hz (IEC)

Fuse: F5A, 250V

Output power rms @ 4 Ohms: 4 x 200W

Output power rms @ 8 Ohms: 4 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)

Auxiliary input: 3.5mm stereo jack

Audio source: USB/SD mp3 playback, FM tuner, BT receiver

Input controls: Aux, Media, Line1, Line2, Mic1, Mic2, Talkover

Line output: 4 x RCA

Antenna connection: F type (FM tuner)

Output controls: 2 x source select, 2x Bass, 2x Treble, Ch1, Ch2, Ch3, Ch4

Dimensions: 482 x 240 x 88mm

Weight: 5.98kg

Adastra A4 4 Channel Stereo PA Amplifier, 4x 200W, 4Ohm with Bluetooth

0 reviews

  • 0 review(s)
0 review(s)
  • 0 review(s)
0 review(s)
  • 0 review(s)
0 review(s)
  • 0 review(s)
0 review(s)
  • 0 review(s)
0 review(s)

Digital Downloads (buying software)

All software marked as "serial download" or "digital download" will be delivered via email within normal office hours.

Simply add the software to the basket and at the delivery stage in the checkout please select "Digital Download - Software by email" as your delivery method

Delivery Charges (Main Products)

All orders over £39.00 will be delivered free via our standard delivery 2-3 days (UK Mainland)

If you need your item faster we also offer a Priority Tracked service at £3.99 (1-2 days) or Next Day Tracked £6.99

(please ensure you add a mobile number to your order for tracking)

Saturday delivery is available when ordered before 2pm (Mon-Fri)

All orders below £39.00 will start as low as £2.99 depending upon weight and qty(s) (UK Mainland) 

All Delivery options will be available at the delivery stage in the checkout

EU Delivery Times

Non UK Mainland Addresses please allow 1-3 Days
Delivery To Belgium / France / Germany please allow 3-4 Days
Music PC Systems - Please allow 5-7 Working Days build time (UK) 7-14 (Rest of the World)

French - Pour la Livraison s'il vous plaît permet en France 2-4 Jours
German - Für Lieferung Nach Deutschland erlaubt bitte 2-4 Tage

Delivery Notes
On delivery you must inspect the goods carefully for damage as Inta Audio is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Inta Audio of such within three working days from the date of delivery.


Returns Policy

We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:

1. Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product’s return.

2. Contact our Customer Services Team on 02476 369898 (or e-mail We will then send you an RMA number and returns form which needs to be completed and sent back with the returned item(s).

3. (If the order has been unpacked) re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.

4. When returning an item please obtain a ‘proof of postage’ receipt from the Courier.

Returned items must be mailed within 10 days of when the RMA Number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.

Please note: Our returns policy is quite straightforward but there are a number of conditions that we ask our customers to comply with before applying:

1. It is your responsibility to request a return. If you don’t tell us you want to make a return, we don’t know. Once you do tell us, we will do everything we can to action it.

2. If you have not requested a return within 28 days of receiving an order, we will have assumed that you are intending to keep it and we will not authorise a return.

3. We always refund the payment according to how the original purchase was made and aim to do so within 72hrs of the return being received by us.

4. Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.

5. Delivery charges will not be refunded unless the delivered goods are faulty.

6. Replacement products are dispatched immediately after the returned goods have been received and accepted by Inta Audio.

7. Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369898 if you believe your item has developed a fault.

Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Inta Audio to process the return quickly.

If you have any questions about our Returns policy please telephone us on 02476 369898 or email us at