Ampeg SVT-4 PRO Series Bass Head

Currently I use this equipment for medium size church worship settings and smaller gatherings between 30-40 people. I also use this for Practicing at my residence. I am impressed with the superior quality and craftsmanship.

I purchased my first 4Pro new from GC around 2015, a made in Vietnam model. It died within 2 weeks. It suddenly made almost no sound as soon as I powered it up. You could hear it, but barely. Of course, GC was great and shot me a new one asap. Knowing what I know now, it probably suffered from tube failure, possibly caused by me. I can't fault Ampeg for this. Most tubes are made in China or Slavic countries and are simply not as good as they once were. After this, I made sure that every time I shut off the amp, I turned down the gain and the master, so that when it powered up, there was no load on the amp, no POP on start-up. I now always let it warm up 5 minutes (something you should always do with any tubes to prevent damage), before I start playing. Since then I've never had a problem with this amp. I use this exclusively for practice. This warm up/ start up system should be stated in the manual. It's always a rule that you warm everything up before you crank on the main amps. My second 4Pro is American made and I purchased it used third party already rack mounted in an SKB case with a Furman power conditioner. I test drove it one cold morning for about twenty minutes and it was in excellent condition. However, once I started using it at gigs, it suffered from overheating shut down due to being rack mounted without proper ventilation. It turns out that the cooling fan was damaged from being over worked and had to be replaced (now I know why they sold it). SInce then, and some customization to the SKB case, I haven't had a single problem, gigging once a week, on for 3hrs solid at a time. I run this one through a 410 and a 410 HLF stack. As for tone, after about 3000 practice hours, it was time to change the tubes. I purchased NOS vintage american made tubes and dropped them in and OH MY GOD! The heavens opened. I got misty playing for the first time. That elusive tone I've been chasing all these years was coming forth from my bass.

I have other Ampeg Amps but this thing has endless possibilities. I can't stop exploring all the options.

This amp is absolutely amazing! I have had mine for 6 years the only thing I have had to replace is the power switch. The amp does run hot but the amount of power I can get from this guy is insane! it definitely blows any other amp out of the water that I have played in both sound dynamic and Power highly suggest if you play with a loud band and need to cut through. the tone options are great and you can dial in your own signature tone very easily using the 9 band EQ along with the mid selector switch. I have played many gigs with it and have rarely had issues (Which were only due to poor electrical wiring in some of the lower end venues) and i use this guy daily! For metal, rock, blues, etc... this thing can do it all!

Love it great product I highly recommend If you want quality sound. You have to get one high power amp handles exactly what I was looking for

Do not hesitate, do not procrastinate. Buy this amp!