orange crush 50bxt schematics

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   would anyone have a diagram for this?
Im trying to work out if the compressor is defeatable or adjustable. 

theres nothing obviously adjustable on the board

having a permanently engaged low threshold high ratio compressor pretty much destroys its usefulness as a practice amp

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
godathunder Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 19 July 2004 Location: wicklow Status: Offline Points: 1834	Post Options Post Reply Quote godathunder Report Post Thanks(0) Quote Reply Topic: orange crush 50bxt schematics Posted: 07 November 2019 at 3:54pm
	would anyone have a diagram for this? Im trying to work out if the compressor is defeatable or adjustable. theres nothing obviously adjustable on the board having a permanently engaged low threshold high ratio compressor pretty much destroys its usefulness as a practice amp
	LOUDER THAN LOUD

odc04r Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5482	Post Options Post Reply Quote odc04r Report Post Thanks(0) Quote Reply Posted: 07 November 2019 at 10:18pm
	Why do you think it has a compressor in it? It may well do, but the manual doesn't refer to it. Might be putting some sort of overdrive style circuit in before a solid state amp to try and get a few extra harmonics going? That would give the effect of compression. Might show up as some anti parallel diodes/LEDs or strings of diodes in the small signal circuitry, probably pre-EQ if anywhere. Can't find any circuits or schematics unfortunately.

godathunder Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 19 July 2004 Location: wicklow Status: Offline Points: 1834	Post Options Post Reply Quote godathunder Report Post Thanks(0) Quote Reply Posted: 08 November 2019 at 12:04pm
	Ive just got a message back from orange. theres a compressor/limiter built into the output chip as protection. the compression I was getting was quite extreme and independent of gain or volume settings. very quick attack and release, high ratio, very low threshold - actually sounded quite nice but hardly conducive to maintaining a sense of your own dynamics rather oddly, since I reassembled the amp the compression has gone - always nice to know theres a latent fault lingering anyway, its only an inbetweener until I find an ampeg micro vr at a sensible price
	LOUDER THAN LOUD

odc04r Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5482	Post Options Post Reply Quote odc04r Report Post Thanks(0) Quote Reply Posted: 08 November 2019 at 12:43pm
	Interesting, hard to explain that one. Knowing the output chip might help but if the effect has gone, /shrug. These intermittent things are often a board interconnect issue if reseating them all has helped.