Tnclimber Posted March 25, 2023 Share Posted March 25, 2023 Hello. I searched the forum on this but could not find the exact answer. I have an Bass Terror 500 with a preamp in the effects loop. On other solid state amps when I do this everything on the amp itself is bypassed except master volume. On the OBT 500 it seems like the Gain knob still works. I was under the impression that the effects loop would bypass the pre amp on the orange amplifier itself. I am new to tube or hybrid amps. Am I missing something? Should the Gain on the amp be bypassed in this situation? Thanks!! Quote Link to comment Share on other sites More sharing options...
Bill Fitzmaurice Posted March 25, 2023 Share Posted March 25, 2023 It may not, the loop could be on the back side of the input stage but before the gain control. The manual should say. Quote Link to comment Share on other sites More sharing options...
Tnclimber Posted March 25, 2023 Author Share Posted March 25, 2023 Thanks for the reply. The manual says "between the amps preamplifier section and output section." This means it is between the Gain control and output I think. Should this override the tube gain? I think my rumble 800 head is the same and it bypasses everything but master volume. Quote Link to comment Share on other sites More sharing options...
Downunderwonder Posted March 26, 2023 Share Posted March 26, 2023 Might be a parallel blend? Quote Link to comment Share on other sites More sharing options...
Tnclimber Posted March 26, 2023 Author Share Posted March 26, 2023 That is a good thought. I cannot find any documentation that indicates it is parallel. That is weird enough on its own. If it were I would think Orange would talk about it. Maybe I will give them a call. I'm just wondering if my amp is defective or something. Quote Link to comment Share on other sites More sharing options...
BassmanPaul Posted March 26, 2023 Share Posted March 26, 2023 (edited) If you plug into the front end of the amp the pre-amp will be active. Plug into the external pre-amp and feed the unit's output into the Return. Edited March 26, 2023 by BassmanPaul 1 Quote Link to comment Share on other sites More sharing options...
Tnclimber Posted March 27, 2023 Author Share Posted March 27, 2023 That worked. I thought I had tried that as well. Thanks! 1 Quote Link to comment Share on other sites More sharing options...
BassmanPaul Posted March 28, 2023 Share Posted March 28, 2023 Glad to have been of help! Quote Link to comment Share on other sites More sharing options...
Stub Mandrel Posted October 4, 2023 Share Posted October 4, 2023 On 26/03/2023 at 02:14, Tnclimber said: That is a good thought. I cannot find any documentation that indicates it is parallel. That is weird enough on its own. If it were I would think Orange would talk about it. Maybe I will give them a call. I'm just wondering if my amp is defective or something. I think you may be being misled because as a hybrid amp the overdriven sounds come from the preamp not the power amp, so the impact of the gain on tone is far greater. Rather than just going into the FX return, another option is to switch to 'clean' mode, which may give you the sound you want. Quote Link to comment Share on other sites More sharing options...
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