LD systems dp600.

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      This amplifier came to my hands, in near mint condition. Everything inside was pretty clean, only the fan had some dust. The amp had a very low usage at a small conference room with speech volumes. I thought that it was a humble cousin of behringer, for example, and other low budjet units ,but when i tested it with four 400w pa speakers, i changed my mind. Its power seem to be far more than specs indicate, and i had to lower the volume for my ears safety. Of course the test was indoors, i have to test it outside to find out its full potential. 

   I just wanted to share this with you, and to ask if someone have these amps to share experience using them, thanks.....

Edited by d.antonis - 05 February 2026 at 6:29pm

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d.antonis Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 04 January 2009 Location: greece Status: Offline Points: 67	Post Options Post Reply Quote d.antonis Report Post Thanks(0) Quote Reply Topic: LD systems dp600. Posted: 05 February 2026 at 6:23pm
	This amplifier came to my hands, in near mint condition. Everything inside was pretty clean, only the fan had some dust. The amp had a very low usage at a small conference room with speech volumes. I thought that it was a humble cousin of behringer, for example, and other low budjet units ,but when i tested it with four 400w pa speakers, i changed my mind. Its power seem to be far more than specs indicate, and i had to lower the volume for my ears safety. Of course the test was indoors, i have to test it outside to find out its full potential. I just wanted to share this with you, and to ask if someone have these amps to share experience using them, thanks..... Edited by d.antonis - 05 February 2026 at 6:29pm

d.antonis Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 04 January 2009 Location: greece Status: Offline Points: 67	Post Options Post Reply Quote d.antonis Report Post Thanks(0) Quote Reply Posted: 05 February 2026 at 6:29pm
	Also, i have to add that it has only 4 output transistors per channel (njw0302-njw0281 pairs), two bridge rectifiers, mosfets, and two main transformer windings, meaning its a class-H topology.

Earplug Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7752	Post Options Post Reply Quote Earplug Report Post Thanks(0) Quote Reply Posted: 06 February 2026 at 8:21am
	I know 1 guy that has a few of the LD PA series amps & is quite happy with them. Sort of mid-range, quite well built amp. Maybe comparable with the Thomann stuff. Ok if you're on a budget & don't mind the weight!
	Earplugs Are For Wimps!