Blackstar Unity Bass U500 2x10-inch 500-watt Bass Combo Amp
Blackstar Unity Bass U500 2x10-inch 500-watt Bass Combo Amp Reviews
The Blackstar Unity Bass U500 bass combo amplifier was built for tonal flexibility. Switch between three power amp stages via the U500's Response control to shape your compression, natural drive, and dynamics. Choose between three distinct preamp voicings, and then sculpt the result with a 3-band EQ. Increase your bass's punch, depth, and low end, with compression, chorus, and sub-octave effects. The U500 is loaded with enough connectivity for live, studio, and home use. And if you want to beef up your output onstage, you can add a Unity U250ACT powered cabinet for an extra 250 watts of power. Get the eminently versatile Unity Bass U500, and everything from valve grind to high-headroom clean will be within your grasp.
While this isn't an item we normally stock, we can still get it due to our great relationship with Blackstar. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated July 2026.
No good
Amp stopped working
Distorts with some basses
There's another review here with one star that was my exact same situation. I contacted Blackstar support on this because I too was like 5 months past the warranty and hadn't used the amp that much. Evidently, this amp is sensitive to hot pickups. I use a G&L Fallout bass with it and it was clipping hard (there is no indicator light to show you this). BlackStar support recommended trying another bass and engaging the -10db switch. This worked! Then I connected the G&L and threw the -10db switch and the distortion was gone. Would I buy it again? No. The same hot pickup'd bass works fine on an old Peavey 115 and a Fender 40w amp. Thus I did not consider clipping. Hope this helps someone.
Wow
Fantastic bass amp.
Very versatile and sound is great.
Powerful enough for small and mid-sized shows, especially with the U250ACT extension cab.
I am thoroughly impressed.
The octave effect is not the best but I rarely use octave so no big deal for me.
Highly recommended.
Great combo, no complaints, get one!
This combo has it all. It is built like a tank, it oozes quality with its look and feel and most importantly, tone. The price/weight/power/feature ratio is unbeatable. This combo looks, feels and sounds like something much bigger that would carry a boutique price tag.
I come from the Ampeg, GK, Ashdown big-rig world, I needed a combo for grab-n-go kind of stuff...I've owned many, including Ampeg, GK, Ashdown, TC and Peavey and the Blacksatar U500 beats them all in every way. I highly recommend it.
FYI - I'm a lifelong bass player, I play metal and I'm in my mid 50's.
Big nod to my rep, Henry Moore...he never gives me a reason to buy anywhere else and always makes it work.
Blackstar unity 500
Great bass amp with a lot of power. Blackstar is a great company. I've used a few of there guitar amps as well. Cheap and great.
Dont buy unless checked
Had two of these shipped to me. Neither of the two worked. Blackstar has some work to do. What do you think the odds of getting two bass amplifiers back to back of the the same product, and neither work are?
Awesome
We"ve used this amp on a few gigs now with my band. TONS of power. Great clarity and depth at the same time. Some good usable effects. You really can"t go wrong with this amp.
Monster Bass Rig !
I waited 4 months for this amp and it was more than worth the wait . I've used a lot of bass rigs over the last 40 years and this is a monster. There are many really good combo rigs out there , but this is one I will never grow tired of and I think you will also feel this way if you play one . Most of my gigs are 200 seat rooms without me going DI and I have to turn down , that says a lot . No need to break down all the features , everything you hear/read is spot on .
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