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ASP Series

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One for the road

Life on the road is tough. Also for gear. Public address speakers for live concerts are being punished by serious mechanical vibration and shock, while being trucked around, hand carried and dropped during concert setup and rigging. Still, they are expected to perform flawlessly, reliably and without failure, while being pushed to the limits during an entire concert, in all kinds of weather. Failure at a live performance is not an option.


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

Active studio monitors


Hifi amplifiers

Professional self powered PA speakers and line arrays

Compare our portfolio of ASP Series

Feature Set Summary

250ASP 500ASP 1000ASP
Balanced input and output
Soft start-up and mute/de-mute
Standby mode
Comprehensive protection scheme
(thermal, over-current, high-frequency, under-voltage)
DC-Bus output for driving additional amplifier channels
+/-12V Regulated auxiliary power supply
Mechanically rugged construction
(Tested for 70G shocks in all directions)
Pre-approved for Safety, EMC and RoHS compliance

Key Performance Parameters

250ASP 500ASP 1000ASP
Amplifier Output Power per channel
(1 % THD+N, 20 Hz – 20 kHz)
280 W (2.7 Ω)
110 W (8 Ω)
500 W (4 Ω)
250 W (8 Ω)
1100 W (4 Ω)
525 W (8 Ω)
Minimum load impedance 2 Ω 2 Ω 2 Ω
Maximum amplifier efficiency
Maximum total amp+psu efficiency 83 % 83% 83 %
Supply voltage input (Selectable) 115-230 VAC 115-230 VAC 115-230 VAC
Peak output current 25 A 45 A 50 A
Dynamic range 112 dB 115 dB 119 dB
Amplifier maximum output voltage per channel 63.2 V 94 V
Output referenced idle noise (A-weighted) 80 μV 80 μV 80 μV
THD+N 1 W/1 kHz 0.0055 % 0.006 % 0.007 %