4 years in with mine. It STILL impresses me as much as ever, if not more.
Using it with my NV215 tomorrow night.
Using it with my NV215 tomorrow night.
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First gig with sb300 and stingray 5 funk gig as pictured, tomorrow SB300 with fender CS 1960 Jazz rock n blues gig.
If it is all going fine and you have never had an issue I would not worry about shelling out cash for a "service". The autobias looks after that side of things and if there are no crackles/pops hisses and the pots are quiet I would leave well alone. If it was fifteen years older some would consider replacing capacitors etc. - if it was me in your situation I would leave well alone. I have one of the very first and it has never had an issue.Coming up on 2 years since I purchased mine, and it was probably 2 years old when I got it second hand.
I'm going to take mine in for a service next week. Just want to get the power tubes tested and make sure everything is as it should be before the gigs start ramping up for the 2nd half of the year.
The other thing I have considered doing is getting the speaker connectors on the rear changed over to Speakon connectors. I have never had any trouble with the 1/4" jack, but I find it amazing that it doesn't have Speakon connectors, anf everything else I own has Speakon. Other than changing it away from original, can anyone see any disadvantages to doing this?
Concur, if it ain't broke don't fix it.If it is all going fine and you have never had an issue I would not worry about shelling out cash for a "service". The autobias looks after that side of things and if there are no crackles/pops hisses and the pots are quiet I would leave well alone. If it was fifteen years older some would consider replacing capacitors etc. - if it was me in your situation I would leave well alone. I have one of the very first and it has never had an issue.
Re speakons, again I would leave well alone. You would have to redrill bigger holes in the chassis which could well cause more issues than it solved.
DON'T use a pencil. The lead conducts electricity.I would test the tubes myself using a pencil. ..listen for any microphonics. I usually don't even look at the bias lights. ...if sounds good. ...etc



I still am infatuated with my SB 300. I have had mine for about 9 months now and I replaced what I thought was my dream amp, an Aguilar DB751 to get this bad boy. I have never regretted letting the Aggy go for a minute, and I thought I would have that amp for ever.
I'm not an experienced toob amp user, but I have owned a DB750, a SVT-II and a Mesa Strategy, along with a whole slew of other SS and hybrid amps. For sheer gut punch impact, my old Trace Elliot AH500x probably came in first place. The SVT-II played very clean had something beautiful happening in the attack, and the eq was very very intuitive. The Strategy - well, it was loud I guess. But for overall warmth, toobness and versatility, the SB300 is IMO untouched.Wow. Before I bought my SB 300 I wanted to try the DB751 but they are not available in my area. I compared the big amps by Ampeg, Mesa, GK and I like the Super Bassman the most. I was very happy with it (and I still am) but I was still wondering what DB751 would be like. Your comment reduces my FOMO.