Aguilar DB750 Question

[MN_Bass]

After the amp does the self check and gets a steady blue light, how long to wait to flip the operate switch. If I flip it right away I get a weak/farty sound, if i wait 4-5 min it sounds fine. Any insight on this, I did change the gain pre tube and di tube. Thanks for any help.

[bamabass]

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[msquared]

I would advise emailing Aguilar about this.

When you flip the operate switch doesn't really make a difference. If it sounds better after 4-5 minutes, that's probably because the tubes got all warmed up. It shouldn't sound weak or farty though in any case.