QSC RMX 5050a 2 Channel Power Amplifier

1,699.00 RRP 2,000.00 (including VAT @ 23%)

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Can be delivered to you on: 14th December 2016
FREE Delivery available.

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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.

Some items are only eligible for money back guarantee if they are returned to us unused and sealed in the original packaging, and in the case of software, unregistered. These items include:

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Optional: 5 year warranty: €111.50
(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: 53598

  • Professional Quality Performance
  • Dual Mono, High Current Power Supply
  • High-Current Toroidal Transformers
  • Selectable Low-Frequency Filters
  • Balanced 1/4 inch TRS, XLR and Barrier Strip Inputs

QSC RMX 5050a 2 Channel Power Amplifier

The QSC RMX 5050a is a heavy duty, high quality power amp, ideal for small to mid-sized systems. The amp produces 1800w at 4 ohms, 1100w at 8 ohms and 2500w at 2 ohms. For maximum output you can bridge to mono for 5000w at 4 ohms. The 5050a 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 5050a Two-Channel Power Amplifier is perfectly suited for performing musicians and mobile entertainers.

Product Ref: 53598

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Full Description

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The 5050a features a number of tools to minimize distortion and protect speakers. This includes channel-independent clip limiters and high-current toroidal transformers. Additionally, its 30/50Hz low-frequency filters block out inaudible but potentially equipment-damaging frequencies.


  • 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: 1050W
  • 8Ω, EIA 1 kHz, 0.1% THD: 1100W
  • 4Ω, FTC 20 Hz-20 kHz, 0.1% THD: 1600W
  • 4Ω, EIA 1 kHz, 0.1% THD: 1800W
  • 2Ω, FTC 20 Hz-20 kHz, 1% THD: 2000W
  • 2Ω, EIA 1 kHz, 1% THD: 2500W

Power, Bridge-Mono Mode

  • 8Ω, FTC 20 Hz-20 kHz, 0.1 THD: 3200W
  • 8Ω, EIA 1 kHz, 0.1 THD: 3600W
  • 4Ω, EIA 1 kHz, 1 THD: 5000W
  • Signal to Noise (20 Hz-20 kHz): -100 dB
  • Distortion (SMPTE-IM): < 0.02
  • Input Sensitivity at 8Ω: 1.42V (+5.3 dBu)
  • Voltage Gain: 64x (36 dB)
  • Output Circuitry: 3-Tier Class H
  • Current Draw (120 V AC):
    • Typical, 1/8 power pink noise at 4Ω*: 13.9 A
    • Severe, 1/3 power pink noise at 4Ω*: 26.9 A

  • AC Mains Plug:
    • 100/120V: NEMA 5-20
    • 230V: CEE7/7

  • Weight: Net: 75 lb (33.1 kg) / Shipping: 87 lb (37.2 kg)
  • Distortion (typical):
    • 20 Hz-20 kHz, 10 dB below rated power: < 0.02% THD, 4Ω and 8Ω
    • 1 kHz and below, full rated power: < 0.02% 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): > 250 at 8Ω
  • Input Impedance: 10 kΩ unbalanced; 20 kΩ balanced
  • Input Stage Clipping: 6.4 V rms (+18 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: 5.25" (13.3 cm) tall; 3 rack spaces
  • Power Requirements: 100, 120, 230 V AC (factory configured), 50-60 Hz

Your order may be delivered with a plug adapter
If any electrical items in your order are supplied with a United Kingdom plug connection, a suitable plug conversion adapter will be included free of charge.