QSC RMX 1450a 2 Channel Power Amplifier

£467.00 RRP £544.81 (including VAT @ 20%)

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30 day money back guarantee included

30 day money back guarantee included

Once the product is delivered, you have 30 days to decide that you definitely want to keep it. If you decide it is not suitable for any reason, you can return it back to us for replacement or full refund, including standard delivery charges.

All Products are new unless stated, and include a minimum of one year warranty.

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We are unable to accept returns of any custom made items designed to work together as a unique package, such as computer system built to a customer’s personal specifications. Exceptions may only be possible with prior agreement of the vendor, and may be subject to a cancellation fee.

Optional: 5 year warranty: £23.35
(Includes 90 day money back guarantee)


The product price includes a one year warranty and 30 day money back guarantee.

However, the Gear4music extended warranty scheme provides an enhanced service, and is designed to offer a higher level of protection than many 'free' warranties offered by some retailers and manufacturers.

The highlights of this enhanced warranty service are:

  • Warranty is extended to 5 years from the date of delivery.
  • Our Money Back guarantee is extended from 30 days to 90 days (terms apply after 30 days)
  • Collection and delivery costs are included for the first two years
  • Claim 50% cash back on the cost of the policy after 5 years if it has not been used!
  • Warranty is transferable if the item is re-sold
  • Loan or replacement equipment will be provided if the product isn't repaired within 30 days
  • If an item can not be repaired, a similar alternative product or cash discount (as defined in this policy) will be offered
  • The policy can be cancelled within 30 days, and at any time after that for a pro-rata discount

Please note that this extended warranty is currently only available on products sold within the EU or EEA, and is subject to the terms and conditions as detailed on the extended warranty certificate provided.

For customers in outlying areas of the country, the price of the Extended Warranty may be marginally higher, due to the potential for higher collection and redelivery transport costs.

This enhanced warranty is in addition to the standard Gear4music and manufacturer warranty policies, and the Gear4music terms and conditions of trade. No statement or condition of sale contained within these terms affects or restricts your statutory rights as defined under the Consumer Contracts Regulation 2014.

Product Ref: 53602

  • 2-Channel, 500 Watts Per Channel
  • High-Current Toroidal Transformers
  • Selectable Low-Frequency Filters
  • Balanced 1/4 inch TRS, XLR and Barrier Strip Inputs
  • Front Mounted Gain Controls for Easy Access

QSC RMX 1450a 2 Channel Power Amplifier

The QSC RMX 1450a is a high quality power amp, ideal for small to mid-sized systems. The amp produces 300w at 8 ohms, 500w at 4 ohms, 700w at 2 ohms and a potential output of 1400w with a 4 ohm bridge. The 1450a is has been designed to be lightweight and have a small rack footprint in addition to cool running temperature. The RMXa Series amplifier combines legendary QSC reliability, audio performance and affordability in a compact, less than 16" deep chassis. The RMX 1450a Two-Channel Power Amplifier is perfectly suited for performing musicians and mobile entertainers.

Product Ref: 53602

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  • 15.9%
  • £16.36
  • £588.96
Pay by Finance

To make it as easy as possible for you to get the gear you want, we offer a range of instant finance options. If you spend £250 or more online, you can choose to pay over 48, 36 or 24 months. The majority of decisions are given instantly, so you could get your new gear sooner than you thought!

Representative Example

To help you understand how our finance options work, the examples below are based on a total order value of £250:

Finance APR Deposit to Pay Payments Total Payable
Classic Credit 48 Months 14.9% 14.9% No Deposit 48 months: £6.83
Final payment: £6.83
No settlement fee
Classic Credit 36 Months 15.9% 15.9% No Deposit 36 months: £8.65
Final payment: £8.65
No settlement fee
Classic Credit 24 Months 18.9% 18.9% No Deposit 24 months: £12.41
Final payment: £12.41
No settlement fee

How to Apply

Applying for finance couldn't be easier - if your order totals £250 or more, simply proceed through the checkout as normal, then select Pay by Finance on the payment page, then click the orange APPLY FOR INSTANT FINANCE button. This will start your application with V12 Retail Finance, our finance partner, and completing this form should take approximately 10 minutes.

You should get an instant answer on whether your application has been successful, though in some rare cases V12 may need to look at the application in more detail.

Please note: This is only available on orders placed via the website and is not available in store or via phone currently.

Full Description

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  • Compact size - up to 2500 watts in two rack spaces, or 5000 watts in three rack spaces
  • High-current toroidal transformers, for greater 2-ohm power and low noise
  • Independent user-defeatable clip limiters reduce distortion
  • Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
  • The 4000-watt RMX4050a operates on a standard 15 amp plug (120V)
  • Both the RMX4050a and the RMX5050a feature a dual mono, high-current power supply for increased reliability and performance
  • The RMX4050a's particularly exceptional combination of cooling capacity and electrical efficiency provides robust thermal performance suitable for high continuous power in 2-ohm stereo or 4-ohm bridged applications.
  • Balanced 1/4" (6.3 mm) TRS, XLR, and barrier strip inputs
  • Touch-proof binding post and Neutrik Speakon® outputs
  • Front mounted gain controls for easy access
  • Signal and clip LED indicators for monitoring performance
  • Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers


Power per Channel, Stereo Mode (both channels driven)

  • 8Ω, FTC 20 Hz-20 kHz, 0.1% THD: 260W
  • 8Ω, EIA 1 kHz, 0.1% THD: 300W
  • 4Ω, FTC 20 Hz-20 kHz, 0.1% THD: 400W
  • 4Ω, EIA 1 kHz, 0.1% THD: 500W (0.5% THD)
  • 2Ω, EIA 1 kHz, 1% THD: 700W

Power, Bridge-Mono Mode

  • 8Ω, FTC 20 Hz-20 kHz, 0.1% THD: 800W
  • 8Ω, EIA 1 kHz, 0.1% THD: 900W
  • 4Ω, EIA 1 kHz, 1% THD: 1400W
  • Signal to Noise (20 Hz-20 kHz): -100 dB
  • Distortion (SMPTE-IM): < 0.01%
  • Input Sensitivity at 8Ω: 1.15V (+3.4 dBu)
  • Voltage Gain: 40x (32 dB)
  • Output Circuitry: Class AB
  • Current Draw (120 V AC):
    • Typical, 1/8 power pink noise at 4Ω*: 6.0 A
    • Severe, 1/3 power pink noise at 4Ω*: 9.6 A

  • AC Mains Plug:
    • 100/120V: NEMA 5-15
    • 230V: CEE7/7

  • Weight: Net: 40 lb (18.2 kg) / Shipping: 46 lb (20.9 kg)
  • Distortion (typical):
    • 20 Hz-20 kHz, 10 dB below rated power: < 0.03% THD, 4Ω and 8Ω
    • 1 kHz and below, full rated power: < 0.03% THD, 4Ω and 8Ω

  • Frequency Response: 20 Hz-20 kHz: +0/-1 dB -3 dB points: 5 Hz and 50 kHz (LF filter bybassed, 8Ω)
  • Damping Factor (1 kHz and below): > 300 at 8Ω
  • Input Impedance: 10 kΩ unbalanced; 20 kΩ balanced
  • Input Stage Clipping: 10 V rms (+22 dBu)
  • Cooling: Continuously variable speed fan, back-to-front air flow
  • Connectors (each channel):
    • Input: Active balanced; 3-pin Euro-style detachable terminal block and XLR (pin 2+)
    • Output: Touch-proof binding posts; Neutrik Speakon®

  • Controls:
    • Front: AC switch; Channel 1 & 2 gain knobs
    • Rear: 10-position DIP switch

  • LED Indicators: Power on: Green; Signal: Yellow (1 per channel); Clip/Protect: Red (1 per channel)
  • Amplifier Protection: Full short circuit, open circuit, thermal, ultrasonic, RF protection. Stable into reactive or mismatched loads
  • Load Protection: Turn-on/off muting; AC coupling (850, 1450); Triac crowbar (1850HD, 2450, 4050HD, 5050) on each channel
  • Dimensions: 3.5" (8.9 cm) tall; 2 rack spaces
  • Power Requirements: 100, 120, 230 V AC (factory configured), 50-60 Hz