2x140W or 1 x 450W plate amplifier, Ice Power 125ASX2 module. Without DSP module.
175 USD
  • Description
  • Specifications
  • Support
  • Application Notes
  • Reviews

Introducing the PWR-ICE125WD, a pocket size plate amplifier module for active 2 way loudspeakers or mono subwoofers. The perfect combo for your miniDSP speaker projects. On the power amplifier side, the IcePower ASX2 modules are complete AC plug-to-speaker amplification audio solutions offering flexible two-channel or bridgeable speaker drive. Their compact size, audiophile audio quality and high power output make them perfect for high-performing audio products. The amplifier is rated for up to 2x125W @ 4Ω or 1 x 450W @ 4Ω. On the connectivity side connectivity, the PWR-ICE125WD is fitted with L&R unbalanced inputs (RCA) and internal jumpers to toggle between Mono (BTL) and Stereo (SE) operation. Combined with your miniDSP 2x4, you've just got yourself a nice DSP + AMP combo!

WARNING: Just to confirm some possible naming confusion, this plate amplifier does not carry an onboard DSP. It's an amplifier module combined with an input buffer card and to be matched with a miniDSP 2x4 for example. If you require a complete solution (DSP + plateamplifier), please look at the PWR-ICE125. Feel free to contact us if you have any questions.



  • IcePower 125ASX2 technology for 1 x 450W or 2 x 140W
  • Pocket size format
  • Unbalanced RCA with input jumpers and master volume control

Product Downloads

What's in the Box?

  • 1 x PWR-ICE125WD amplifier module
  • 1 x IEC power cord
  • 1 x Speaker wire harness to connect amplifier to speaker (60cm long)
Digital Signal Processor Engine -

Internal Processing resolution
& Sample rate


Input/Ouput Configuration

Output SE/BTL mode

Audio Input Connectivity

2x unbalanced analog inputs (RCA)

Audio Output Connectivity

1, speaker ouput: wire type

Input / Output Max Levels

IN: 1Vrms (J1&J2 closed) or 2Vrms(J1&J2 opened)
OUT: SE mode: 2x125W @ 4Ω 1% THD(240V ac);2,
BTL mode 450W @ 8Ω 1% THD(240V ac)

Input Impendance
Output Impedance SE-mode: 3Ω; BTL mode 6Ω
Calibration Software -
Filtering Technology -
DSP Presets
Dimensions 182 x 153 x 50 mm
Power AC 110/240V selectable
Win/Mac Compatible
UMIK-1 Included
Bass Management
Room EQ Wizard Support

Application notes on PWR-ICE projects

In this application note, we will show you how to design and build your own DSP-controlled active loudspeaker with the miniDSP ICE-PWR125 DSP plate amplifier. Note that a similar project could be built using the PWR-ICE250 if additional power is required.

In this application note, we will show you how to design and build your own DSP-controlled subwoofer with the miniDSP PWR-ICE125DSP plate amplifier. Note that a similar project could be built with the PWR-ICE250 if added power is required.

John Reekie from Hifizine, the enthusiast's audio webzine, documented an amazing design in the following 2 part articles. This is a prototype speaker dubbed the "Mini Convertible," which uses drivers from Seas of Norway ( and a miniDSP PWR-ICE125 plate amp for amplification and DSP crossover.  The prototype has a removable baffle for experimentation with different baffle profiles and cabinet bracing, but the final speaker will have the baffle glued (i.e. no screw holes).

Driver and summed responses LR4 2000 Hz


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