After having had the Micro VR head http://www.thefretboard.co.uk/discussion/85492/nbad
for just over a year, and been looking for a second hand matching cab for it without any success, I spotted a B-stock one in the Boxing Day sales and decided just to buy it and be done with it.
So now I have a complete miniature SVT
. The whole thing weighs less than half what the head alone of a full-size SVT does.
A few months ago I acquired a pair of Celestion neodymium B10-200Xs which I was planning to put in the cab - the stock speakers give an 8-ohm cab which restricts the amp to 150W, so I thought that if I changed it to a 4-ohm one I would get the full 200W and lighten the cab by a few pounds at the same time - since I don't plan on ever using two cabs with it, it seemed sensible to get the most out of the amp. So after a very brief test just to make sure the original speakers were working OK (since I planned to sell them, or use them for repair jobs), I took them out, fitted the Celestions and expected to hear a big improvement.
Firstly I thought that there was almost no noticeable increase in volume, and if anything I wasn't sure the cab sounded quite as good. Much worse, when it was pushed hard the amp's limiter made an audible clicking noise as it came in and out, which was extremely annoying and unmusical-sounding. Turning it off and allowing the amp to clip naturally was no better - still horrible-sounding. On a hunch I guessed it was that it didn't like running at 4 ohms...
So I decided to put the original speakers back - which I convinced myself was worthwhile since at least it gave me the opportunity to solder the speaker wiring as I prefer, rather than using the original crimp connectors. And I was right - the cab definitely sounds better, is no quieter, and best of all the amp now does not clip with the limiter on and sounds fine when it does so without - which actually means I can play it louder if I want, since I don't have to hold back for fear of nasty clicking noises.
So this is important - it means that although the amp is rated for driving a 4-ohm load, it really isn't suitable for it. It's an 8-ohm amp - bear this in mind if you're thinking of getting one.
Which also means that it's a very good thing that I didn't do what I originally thought when I first got the head, which was to buy a 4-ohm Barefaced cab, at about £700!
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone."