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Monacor STA-450D 4-Channel 200W Digital Power Amplifier
  • Monacor STA-450D 4-Channel 200W Digital Power Amplifier
  • Monacor STA-450D 4-Channel 200W Digital Power Amplifier

Monacor STA-450D 4-Channel 200W Digital Power Amplifier

Code: STA-450D
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  • Class-D Amplification - Highly efficient
  • 4 x 50W Channels
  • Two channels can be bridged for 100W RMS
  • Level control for each channel
  • 19" Rack-mountable
  • 3-Year manufacturers warranty
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RRP: £299.00 (inc. VAT)
Save: 28%
Your Price: £215.00 (inc. VAT)
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  • Standard Delivery - (FREE UK Delivery)
  • Express Delivery Available
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The Monacor STA-450D Digital PA Power Amplifier is perfect for multi-zone PA applications for both music playback and voice. 

The digital power amplifier is equipped with 4 channels all rated at 50W RMS. For a higher output power, two channels each can be bridged providing a combined 100W RMS output. Each channel has its own level control.

Thanks to Class-D Amplification the STA-450D is extremely energy efficient and operates at really low temperatures. They also have a silent operation due to a fanless cooling concept. 

Inputs include 4 x XLR sockets designed for balanced signals from mixing desks, Preamplifiers and CD players (550 mV min.) and 4 x RCA jacks for connecting a standard signal source from smartphones, tablets, and laptops (1 V min.).

Installation is quick and easy and will have you up and running in no time. Loudspeakers can be connected to the STA-450D via the push terminals at the rear of the amplifier. 

The Monacor STA-450D  PA Amplifier is designed for installation into a 19" rack cabinet (482mm), but can also be used as a tabletop unit. The STA-450D takes up 2U rack space. 

All Monacor products are supplied with a manufacturer's 3-Year warranty.

Channels: 4

Power rating: 200 W

Power rating at 4 ohm: 4 x 50 W

Power rating at 8 ohm: 4 x 30 W

Power rating with 8 ohms bridged operation: 2 x 100 W

Peak music power output (PMAX): 300 W

Inputs: 1 V/20 k ohm unbal. 550 mV/20 k ohm bal.

Frequency range: 10-20,000 Hz

Crosstalk attenuation: > 45 dB

Power supply: ~ 230 V/50 Hz/300 VA

Mains voltage: ~ 230 V

Mains frequency: 50 Hz

Power consumption, operation: 300 VA

Admiss. ambient temp.: 0-40 °C

Dimensions: 483 x 90 x 330 mm, 2 RS

Width: 483 mm

Height: 90 mm

Depth: 330 mm

Rack spaces, RS: 2

Weight: 8.4 kg

Connections: 4 x XLR, bal., 4 x RCA, 4 x spring-load. speaker term. L/R

Monacor STA-450D 4-Channel 200W Digital Power Amplifier

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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)

The cutoff for same-day dispatch is 3:30pm but can vary at busier times such as Christmas.

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