Select Page

ASX Series

Power to the pros

Take audio reproduction to the next level with the ICEpower ASX Series. These ultra-compact, lightweight class D audio amplifiers with integrated power supplies are designed as highly competitive modules in terms of low cost and carefully chosen features. The four modules in the ASX Series can be combined as application building blocks to generate a wide variety of 1-8 channel audio applications in consumer or professional audio products.

Forever young – the ASX Series

Flexibility, quality, and reliability is paramount to the ASX Series. The modules have an extraordinary solid build, and are fully protected ensuring a long lifetime. Due to their compact size, the ASX solutions are suitable for innovative product architectures, bringing a new, exceptionally powerful experience to audio reproduction.

The ASX Series is fully compatible with our extension module, ICExtend. By integrating ICExtend in your application, you can easily add ErP (1275/2008) compliant stand-by functionality, universal mains, and +5 V auxilliary power supply. The modules are based on ICEpower’s HCOM class D topology resulting in extended bandwidth, improved dynamic range, and exceptionally low distortion.


Below you can see the application possibilities for the ASX Series. If you have any doubt or questions, please contact our sales team.

Bass and guitar amplifiers

High-end stereo and multi-channel amplifiers

Active 2- and 3- way speakers

Compare our portfolio of ASX Series

Feature Set Summary

  50ASX2SE 50ASX2BTL 125ASX2 250ASX2  
Global AC input selection  
Full 20 kHz power bandwidth
Full 15 kHz power bandwidth  
Short-circuit protection  
Over-current protection  
Thermal protection  
Thermal protection monitoring  
Over-current protection monitoring  
Pre-approved for Safety, EMC and RoHS compliance  

Key Performance Parameters

  50ASX2SE 50ASX2BTL 125ASX2 250ASX2  
Amplifier Output Power per channel
(1 % THD+N, 20 Hz – 20 kHz)
50 W (4 Ω)
25 W (8 Ω)
170 W (4 Ω) 125 W
(SE, 4 Ω)
(SE,8 Ω)
450 W
(BTL, 4 Ω)
270 W
(SE, 4 Ω)
435 W
(SE, 2 Ω)
500 W
(BTL, 8 Ω)
Amplifier Output Power per channel
(10 % THD+N, 20 Hz – 20 kHz)
60 W (4 Ω) 220 W (4 Ω) 150 W
(SE, 4 Ω)
550 W
(BTL, 4 Ω)
280 W
(SE, 4 Ω)
630 W
(BTL, 8 Ω)
Minimum load impedance 2 Ω 3 Ω 3 Ω 3 Ω (SE)
4 Ω (BTL)
Maximum amplifier efficiency  
Maximum total amp+psu efficiency 81 % 81% 86 % 84%  
Supply voltage input (Selectable) 85-264 VAC 85-264 VAC 85-264 VAC 85-264 VAC  
Peak output current 20 A 20 A 30 A 30 A  
Dynamic range 120 dB 125 dB 117 dB (SE)
121 dB (BTL)
112 dB (SE)
121 dB (BTL)
Amplifier maximum output voltage per channel 20 V 36.9 V 31.6 V (SE)
66.3 V (BTL)
31.6 V (SE)
66.3 V (BTL)
Output referenced idle noise (A-weighted) 25 μV 20 μV 30 μV (SE)
36 μV (BTL)
80 μV (SE)
55 μV (BTL)
THD+N 1 W/1 kHz 0.003 % 0.002 % 0.003 % 0.008 % (SE, 100 Hz)
0.004 % (BTL, 100 Hz)