Alto RMX1508DFX 1500W Powered DSP Cabinet Mixer

£319.00 RRP £449.99 (including VAT @ 20%)

This product is currently not available for purchase

  • 2 x 750 Watts at 4 Ohms / 1 x 1500 Watts at 8 Ohms
  • 8 XLR Inputs with Phantom Power
  • 8 Line Inputs & Stereo RCA Input
  • High Quality DSP Digital Effects
  • Compact and Robust Design

Alto RMX1508DFX 1500W Powered DSP Cabinet Mixer

The Alto RMX1508DFX is a powerful and versatile 1500W powered DSP cabinet mixer that is the perfect solution for large rehearsal rooms and live performances with its 8 XLR, 8 line and stereo RCA inputs. Featuring incredibly high fidelity class D power and compact design the RMX1508DFX provides up to 1500W of professional quality amplification at an affordable price whilst the addition of 3 band eq's and digital effects processor makes the RMX1508DFX the top choice for a range of applications.

Product Ref: 20917

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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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The RMX1508DFX is an extremely versatile powered DSP mixer that provides flawless audio amplification in a range of live scenarios. Featuring an ultra-clean 1500 watts of Class D power the RMX1508DFX not only delivers intense power but is also incredibly light compared to other mixers meaning you won't break your back bringing it to the venue. Running the RMX1508DFX in stereo will deliver a continuous 2 x 750W at 4-ohms of pure, clean power.

The RMX1508DFX incorporates a high quality and great sounding on-board digital effects processor and 3-band EQ on every mono and stereo channel allowing you to tweak, modulate and fine tune your tone. The 24-bit built-in DSP effects engine provides a huge array of professional effects such as Hall, Room, Vocal & Plate reverbs, mono and stereo delay (max delay time 650ms), chorus, flanger & reverb modulations, reverb/delay, reverb/chorus and reverb/flanger combinations. Whether a live sound engineer or just aspiring engineer the DSP effects allow you to add finesse to your live mixes whilst the huge library of 256 different DSP pre-sets ensures there is a suitable option for any performance scenario.

The RMX1508DFX also features an incredibly useful array of tools that can make your events world-class. Incorporating 18 total inputs including 8 XLR jacks with phantom power, 8 Line jacks and stereo RCA the RMX1508DFX allows you to plug in guitars, mics, keyboards or even an iPod for playback between sets making it perfect for both practise and live use.


  • 18 total inputs including 8 XLR jacks with phantom power, 8 line jacks and stereo RCA.
  • On-board digital effects processor
  • 3-shelf EQ on each mono and stereo channel
  • Continuous 2 x 750W power at 4-ohms
  • 1500 Watt Output at 8-ohms Bridged
  • Class D Power for clean power and light weight
  • Built-in, recessed handles for easy transport


Mono Input Channels:

  • Microphone input: Electronically balanced, discrete input configuration
  • Frequency response: 10Hz to 55kHz, +/-3dB
  • Distortion: (THD & N) 0.006 at +4dBu, 1kHz
  • Gain: 50dB (MIC)
  • SNR: (Signal to Noise Ratio) >90dB
  • Line input: Electronically balanced
  • Frequency response: 10Hz to 55kHz, +/-3dB
  • Distortion: (THD & N) 0.04 at +4dBu, 1kHz
  • Gain: 30dB

Stereo Input Channels:

  • Line input: Unbalanced
  • Frequency response: 10Hz to 55kHz, +/-3dB
  • Distortion: (THD & N) 0.006 at +4dBu, 1kHz


  • Microphone input: 1.4kOhm
  • Channel Insert return: 2.5kOhm
  • All other inputs: 10kOhm or greater
  • Tape out: 1kOhm
  • All other output: 120Ohm


  • Hi shelving: +/-15dB @12kHz
  • Mid bell: +/-15dB @2.5kHz
  • Low shelving: +/-15dB @ 80Hz

DSP Section:

  • A/D and D/A converters: 24-bit
  • DSP resolution: 24-bit
  • Type of effects: Hall, Room, Vocal & Plate Reverb, Mono & Stereo DELAY (max delay time 650ms), Chorus, Flanger & Reverb Modulations, Reverb+Delay, Reverb+Chorus, Reverb+Flanger combinations
  • Presets: 256
  • Controls: 16-position PRESET Selector; 16-position VARIATION selector, CLIP LED; MUTE SWITCH with LED indicator

Main Mix Section:

  • Noise: (Bus Noise) Fader 0 dB, channels muted:-85dBr (ref.:+4dBu), Fader: 0dB, all input channels assigned and set to UNITY gain:-71dBr (ref.:+4dBu)
  • Max output: +27dBu balanced, +22dBu unbalanced, 1/4" jacks
  • AUX Sends max out: +22dBu

Output Power:

  • Stereo Mode: 680W(RMS) @ 4ohm, 770W(EIAJ) @ 4ohm, 429W(RMS) @ 8ohm, 399W(EIAJ) @ 8ohm
  • Bridge Mode: 1553W @ 8ohm

Power Supply:

  • Main Voltage: 100-120VAC 60Hz, 220-240VAC 50Hz
  • Fuse: 100 120V: T10A 250V, 220 240V:T6.3A 250V

Other Specs:

  • Dimensions (WxLxH): 550mm x 220mm x 310mm