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Monacor PA-4120 4 x 120W 100V Line Power Amplifier

by Monacor
£829.00 (inc. VAT)
SKU PA-4120

The Monacor PA-4120 is a 4-channel 480W Power Amplifier perfect for commercial environments that require a powerful music/tannoy system to cover a large area. 

This high-quality amplifier boasts 4 x 120W channels all of which have a dedicated input and volume control. This is great for applications that have multiple areas with complete control needed for each. 

The Monacor PA-4120 is commonly installed into:

  • Shopping Centres
  • Sports Grounds
  • Airports
  • Hospitals
  • Universities / Colleges

Featuring a temperature-controlled fan, the PA-4120 is designed to be used 24/7 if required. For a piece of mind, you are also covered by a 3-year manufacturers warranty

Installers will be pleased to know that the PA-4120 is quick and easy to set up. It can also be rack-mounted into any 3U or greater rack case or cabinet (rack-ears supplied). We strongly recommend leaving a couple of rack spaces free for extra ventilation. 

The PA-4120 has 4 x 120W outputs for a connection of any of our 100V Ceiling Speakers, 100V Wall Speakers, or our 100V Outdoor / Horn Speakers

Mains operation or 24V emergency power operation, meaning if the main power shuts off the system will continue to run. 

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Monacor PA-4120 Power Amplifier Key Features:

  • 4 x 120W Channels

  • 3U Rack-Mountable (rack-ears supplied)

  • Routing switches for parallel operation on 2 channels each

  • Temperature-controlled fan

  • Connection for external on/off switch

  • LED indication for clip, protect, overtemperature and output level

  • Mains operation or 24 V emergency power operation


      All Monacor products have a 3 year warranty

      All Monacor products carry an industry leading 3 year warranty

      If you require any assistance with any of our products then call us on 02476 369890 and one of our specialists will be happy to help. Or you can use our Request a call back form. 

      See SPECIFICATION tab for technical specs


      Monacor PA-4120 Specifications

        • Channels: 4
        • Power rating: 480 W
        • Power rating at 4 Ohms: 4 x 120 W
        • Power rating at 100 V: 4 x 120 W
        • Output impedance: 22 V/4 ?, 50 V/21 ?, 70 V/41 ?, 100 V/83 ?
        • Inputs: 1.2 V, bal.
        • Frequency range: 55-17,000 Hz, -3 dB
        • S/N ratio: > 90 dBA
        • THD: < 1%
        • Power supply: ˜ 230 V/50 Hz/1,400 VA, DC 24 V/60 A
        • Mains voltage: ˜ 230 V
        • Mains frequency: 50 Hz
        • Power consumption, operation: 1,400 VA
        • Operating voltage (possible alternative): DC 24 V
        • Power supply (possible alternative): DC 60 A
        • Admiss. ambient temp.: 0-40 °C
        • Dimensions: 483 x 133 x 370 mm, 3 RS
        • Width: 483 mm
        • Height: 133 mm
        • Depth: 370 mm
        • Rack spaces, RS: 3
        • Weight: 25 kg
        • Connections: 4 x XLR (inputs), screw terminals (speakers)

        Monacor PA-4120 - PDF file download

        Download the User Manual HERE

        Download Product Data Sheet HERE


          Monacor Background Music System Products

          Monacor - a premium brand, engineered in Germany that's a heavyweight in the background music industry.

          Founded in 1965 by Günter Schilling, Monacor has grown to be a global player in technology with trading partners in over 40 countries.

          As well as providing a superior sound quality and an industry leading 3-year warranty on their products, Monacor also have an in-house UK based repair workshop, giving you peace of mind.

          The Monacor technical advisers have extensive background audio experience and are always on hand to advise Audio Volt on the latest industry advances.

          Audio Volt is proud to stock Monacor and offers FREE UK Shipping on orders over £50 with in-stock items dispatched within 24 hours.

          Our sales manager Tom says; "Monacor is a high-quality, premium brand that is well-engineered. Perfect for a professional look and a world-class sound!"

          Monacor was our brand of choice when we designed our mighty 24 speaker background audio system, suitable for large spaces, warehouses, offices and large department stores.

          With an impressive range of speakers and some of the most powerful amplifiers available in the background audio market, you can be sure to find a Monacor system you will be delighted with. 



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          Delivery Charges

          Orders over £50.00 will be delivered FREE of charge via our Standard UK Delivery Service (2-3 days, UK Mainland).

          All orders below £50.00 will be sent at a rate of £3.99 per order (2-3 days, UK Mainland). 
          If you need your item faster we also offer a Premium Delivery, Next Day Tracked service at a cost of £9.95.

          Do you require your item before 12 pm? We offer a Premium Delivery, Next Day Tracked, Pre 12 service at a cost of £24.95.

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

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

          European Delivery Charges

          Standard EU Shipping service £16.99  (Shipping to France, Germany, Ireland, Guernsey & Jersey - 2-4 days)


          Delivery Notes

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

          60 Day 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 369890 (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 60 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 Audio Volt.

          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 369890 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 Audio Volt to process the return quickly.

          If you have any questions about our Returns policy please telephone us on 02476 369890 or email us at