Ampeg B-25B

I love My Ampeg B25B! It is a 1969 and still has the origionall Panasonic tubes! I bought it for $100 a year ago and it is still in mint condition, it has hardly ever been used.

I play a Fender Jazz and it sounds awesome through the Ampeg. The Ampeg actually has a growl to it. I like to set both of my volumes on my Jazz all of the way up and then set my tone to around 4 or 5.
Then for songs that are faster paced and that I do more improvising in, I like to turn my ultra high and ultra low switches to on with my bass knob all of the way up and my high know all of the way down. For slower songs I just turn the Ultra High switch to off. It is 55 watts RMS at 16ohms and pulls a 2*15 cab at 16ohms.

When I bought it I spent $30 on it in the shop to get it cleaned up, you know, all of the dust that accumulates inside over the years.

I just took mine to a trusty electronic repair man down on the square.

When I first saw it I lost my breath and began to sweat, alot.
ONE HUNDRED BUCKS!
MINT CONDITION!
AWESOME SOUND!
CAN YOU DIG IT!

Basic all tube bass amp features 2 7027 power tubes (Groove Tubes) and a pair of 12AX7 and a 7199 pre-amp tube (Also Groove Tubes). Volume, bass and treble on each channell, with high and low boost switches with normal and deep inputs. And that's about it. How much more does a bass need?

I've owned this amp for 16 years. I've used it with a Fender Jazz Bass, a Charvel B4 and an Ibanez SR800. 3 different speaker configs. At first I had a 4-12 Sunn cabinet that produced nothing but distortion with the Jazz bass but cleaned up a lot with the active Jackson pickups in the Charvel. Then with a single 15" E.V. in a very small cabinet it smoothed out a lot but it wouldn't get very loud. Smooth bottom end, real typical Ampeg sound. Then I got a Cerwin Vega 18" in a folded horn cabinet and that was all I needed. I threw all my floor toys away at that point. Nothing but smooth round low-end and not much top end bite, especially with the Ibanez. For blues and Classic rock it's a winner. If you want a heavy metal or Jazz sound with lots of bite this may not be the best choice.

What's that???
This is a Circa 1963-1967 amp I bought at a yard sale! Aside from adding the Groove Tubes it's never been apart in the 16 years I've owned it.

I've played bass since 1970 and for what I play Ampeg is it. If it left me for some reason and I couldn't find another one I'd buy a different Ampeg model, either a B18 or an old SVT.After owning Fender's, Peavey's and assorted others Ampeg is consistantly my favorite sound.

well, my baby was made in 1969, it has a bass and treble control... ultra high and low... two channels.... and super tube sound. i've played the amp out and i use it all the time at home.... the 55 watts is enough to run the old school cab that matches it-- 2 15" woofers, it's able to be plenty loud...

i've played quite a few through it... fender jazz.... rick 4003... and a few other mutts... they all sound pretty bitchin!!! it doesn't really fit punk rock, but then does anything??? it's not noisy and it makes a good bass sound... clean until you really get into it and then it has warm overdrive....

it has yet to break down... but now that i say that... of course it will.... the amp has been serviced- religiously! and has had a little bit of work done to it... i had 6550's installed for the power tubes... and a bias control... it's a little powerhouse!!!

the amp is like 30 some years old... throw me a frickin' bone here!!! customer service, what do you expect???

i've been playing for 6 years and this is my favorite amp-- ever... i can't wait to buy a big ampeg!!! stolen or lost i'd drive like 500 miles to get another one!!! there's nothing i hate about it... you should buy one, if you can!!!

I love this amp. Im borrowing it from my father friend that used to gig with my father with this amp. So i get to use it as long as I want. Well for the features, it plays any style i want fuck, jazz, rock, heavy metal, you name it, it can play it. It's paired with its original cab 2x15's. It's 55 watts at 16 ohms. I use it for practice and gigs with a band im in. The only thing is i wish it had more power. Thats why im gonna step up to a SVT.

Im using a Fender american standard Jazz bass with it, A upright bass, and a homemade electric bass. It can play any kind of style. Nice break up near the top of the volume but lacking in power for big gigs. Great full sound.

Its 20? years old. The only things i did with it was get 2 new 12ax7 driver tubes because they were becoming microphonic. 20 bucks and i got it sounding great. There are some rare tubes in it but i'll worry about it when they blow.

ITs old. Ampeg doesnt support it really. Just find vitage amp restoration places.

Ive been playing on this for over a year. Great little amp for practice, small gigs and recording. It will be a sad day when i have to part with this baby. I love it so much. But I will have to get a bigger amp sooner or later if anyone is selling a ampeg orignal SVT give me a hollar

Basic Bass Amp head. Treble/Bass two position switches. Around 50-60 watts tube. Compared to My Trace Head (150AX), I prefer the "Girth" or full demension sound of Ampegs tube heads. Like a lower wattage SVT..

Great vintage mid-wattage sounds.....Nicer than the bassman 60. Also great for guitar..all round NICE amp

Not road-worthy w/o road type case, yet how-many tube heads are ??
This is about as nice as they came (middle of last century) for small gig, practice apps.. Now-adays most have been modded. Original tubes aren't as easy to find

If you can find a good amp tech.......not harder than other tube heads of this genre, otherwise this is a vintage bass head..Not common today..yet schematics are abundant

I've always been an ampeg Bass, Fender/Marshall guitar person.
So I grabbed this at an auction......some contact spray for the pots, and switches...nice tube sound