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Product 482032

SWR SM-500 Bass Amp

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An amp bass players have loved for its tonal versatility has been updated with even more special features. It offers a tube (12AX7) front end; dual i...Click To Read More About This Product

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Redesign of a classic!

An amp bass players have loved for its tonal versatility has been updated with even more special features. It offers a tube (12AX7) front end; dual independent inputs for passive or active basses; gain with LED clip indicator; variable limiter; aural enhancer; bass, treble, and transparency controls; a 4-band graphic EQ; effects blend, stereo master volume; speaker on/off switch; side chain loop; tuner output; balanced XLR out with select switch direct mode, ground lift, and pad control; and bridge or stereo mode switching. Bridged mono: 500W @ 4 ohms, 400W @ 8 ohms, 250W @ 16 ohms (minimum load 4 ohms). Stereo: 300W per side @ 2 ohms, 250W @ 4 ohms, 150W @ 8 ohms (minimum load 2 ohms). 19"W x 3.5"H x 13.375"D. 20 lbs.

Tube front end
Dual independent ins
Variable limiter
Aural enhancer
4-band graphic EQ
Bridged mono: 500W @ 4 ohms, 400W @ 8 ohms, 250W @ 16 ohms (minimum load 4 ohms)
Stereo: 300W per side @ 2 ohms, 250W @ 4 ohms, 150W @ 8 ohms (minimum load 2 ohms)

Total tonal control with plenty of power and punch. Order now.


Review Snapshot

by PowerReviews

(based on 13 reviews)

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Reviewed by 13 customers

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(2 of 2 customers found this review helpful)


Great Sound/ Great Features

By Bardley

from Chattanooga, TN

I've been playing bass for over a decade now and have used a ton of gear from the cheapest of the cheap to the "costs more than my car" stuff. I've had the SM-500 for about a year now and to be honest, when I first got it I was a bit disappointed in the sound... that is, until I played a live gig with it. It cut through clearly with my SWR cab and has every feature I need. It actually sounds better after about 15 minutes of playing when the tube warms up. You can get a great tone with anything from my old P-bass to my modern Warrior Studio 5. I love it and Highly recommend it.



By MIcah282

from Vista,ca

I've played at my Brothers house it was amazing.


Best Bass amp I've used

By Steve-l3lIu

from Wilmington, NC

Delivers crisp clear bass at low levels as well as high output. I use it everywhere from small gigs to outdoor performaces. Just a great overall amp!


What an amp!

By Anonymous

from Undisclosed

I got a used one fo these and two cabs (avatar 2-10" and 1-15" with eminence speakers and le son horns!) and I must say, weather I'm playing for those small gigs and only take the 2-10", or the largest ampitheatre (which I do), the rig hold up. I can even get some nice tube distortion by cranking the front end. One word of advice: replace the stock 12AX7 with a good ol' NOS RCA or Raytheon or even a Sylvania. I'm too young to remember when these tubes were being made, but i got a few from an old piece of equipment at church that broke down, and WOW does it boost the low end even more! Overall, because I can get any sound out of this amp as well as better (IMHO) sound than any ampeg or even other SWRs (other than the SM-900, of course) I wholeheartedly recommend this product.



By AlanTheWise

from Richland, WA

See all my reviews

I spent much searching for just the right bass head that I wanted. I wanted the THUD-SLAP ability that pretty much every advanced bassist uses, as well as a really strong Mid-driven tone that can cut through everything else and really drive a song. I didn't want to blow away my checkbook, but I wanted something with enough wattage to play over the rest of my band while also leaving room to expand. In the end, I found my amp head. And if you havn't guessed yet, it was the SWR SM-500


One of the best sounding heads I have played

By Anonymous

from Undisclosed

The features of the head are great. The four band graphic EQ is very flexible. The aural enhancer is also a nice touch. Overall it was great buy.


Look no further

By Roadracer311

from San Francisco, CA

See all my reviews

The SM-500 is absolutely outstanding. I've had mine for about a year and it has been trouble free, very powerful and the tone is stunning. I recorded a record recently with a Grammy-nominated producer. She loved the tone of my SM-500. You can hear the final product on myspace. Search for "eyeknife" or just go to myspace and then /eyeknife to hear how great this head sounds.


I love my SM 500

By warrior462Y

from Bozrah, CT

This is an excellent amp that combines power and sound, and is complemented perfectly by any SWR cab.


Crystal Clean Tone

By EvictingBass

from Bensalem, PA

I upgraded from the older SM-400 and I must say I'm just as pleased with the SM-500 as I was with my old workhorse...I play Hard rock with some lite funk bass and the clean tone is killer. I run the amp mono into a Mesa Powerhouse 1000 (1x15 4x10) and it responds with thunderous bass and clean mids and highs.It's built like a tank and will probablt long outlast my other gear.


Simply the Best

By Rokracr

from U.S.

I've had or played all the best amp heads there is out there, there's SWR and the Ampeg SVT, ONLY. Don't waist your hard earned money on anything else, I've been a working professional musician for over 30 years, with top name bands, take care, and buy the best SWR!


Amp that rocks

By Anonymous

from Undisclosed

When I plugged into this monster I thought wow this thing rocks, it's gotta be the best head I've ever heard and i have tried a few believe me, talk about shaking the walls whew I'm so much swr all the way now, my hats to all and its founder.


Supreme tone, lots of power!

By Charlietahoe

from Lake Tahoe, NV

See all my reviews

Ask me a question

I have owned my SWR SM 500 for over five years now, and it has performed extreamly well. I have pushed it to the point that it has self protected on a few occasions. That can happen with a low B string. If you are playing very loudly and really start thumpin' hard you might simply run out of power. After all, to get just 3db louder than this amp can go takes double the power, or 1000 watts. So, if extremely high levels are needed, or if you have an inefficient speaker cabinet, I would consider the SM 900 instead. Or, as I am doing, use the SM 500 to pre amp a higher wattage power amp sometimes. The big reason every bassist loves this amp is the combination of pristine tube warmth, clairity, and the superb paragraphic EQ. The "transparency" control is capable of giving you the most killer, non wanky slap/pop tone you'll ever hear, as long as your rig has a tweeter horn.


The best amp I have ever heard!

By Otto_458

from McLean, VA

I play in a band that can work shows for 5 to 5000 people, and this amp takes care of every situation. I had a problem with our sound guy/keyboard player who seemed to think that bass should be seen and not heard. The SM500 allows me to adjust the volume whether I am going through the sound system or not.

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