Got the Quilter. Freaking loud through that Wizzy!
Yes it is. Part of it is that the Wizzy produces 103 dB @ 1 watt/1 meter, so should be as loud with a 200 watt amp as one of the many FRFR cabs that are rated at 97 dB sensitivity are with an 800 watt amp. The Interbass is really freakishly loud for a 45 watt amp, though. It must be rated conservatively.
This weekend I played an outdoor fall festival. First gig in a very long time. The stage was the usual trailer enclosed on three sides with a roof. And all amps and PA had to be powered with a single 115 volt extension cord run to the beer garden. Lord knows what else was plugged into that circuit. I had brought two 4 ohm Wizzy M-lines and my glorious 2-ohm capable Handbox R400 head. I also had a Trace Elliot Elf, which has been my backup for the last 2 years, and the Interbass, just for fun. I'd planned on using the Handbox with both cabs, as outdoors it's nice to have some extra oomph. But when I saw that we all had to share a single outlet, I thought maybe it was a good time to see what the 45 watt Class D Interbass could really do, at least for the first set. I plugged it into one of the M-Lines and we started.
Those semi-enclosed stages, if you've ever played through one, are a bit like playing inside a metal shipping container. The drums reflect really harshly off all the walls and ceiling, as does the amplified acoustic rhythm guitar. The steel player couldn't hear himself over the clamor and kept on turning up, as did I. The volume crept up steadily through the day as we all tried to hear ourselves over the racket of drum reflections. Classic vicious cycle volume wars. At the end of the day we were far louder than we normally play. I'd stayed with the Interbass for the entire 4 hour job, and it was LOUD and I still had rotation left on both the gain and master, and on my bass. And it was really nice and fat, and the D and G strings really spoke out nice and strong, right along with the B, E and A. Great bottom and articulation. Scarily close to the way the Handbox sounds, and about the size of two deck of cards. I almost hate to say it, but I don't know if I will ever play any gigs that it couldn't handle, and I never go through FOH.
By the way we managed just fine on our single extension cord for the entire band. I know that the Interbass was not wasting any juice on heat, as it stayed cool as can be.
My dilemma now is that I have two first rate tubey sounding backup heads in the Interbass and Elf, plus an EA Doubler, and of course the amazing Handbox. They all sound great, and they all will more than do the job. I can't play them all, though, and it's hard to justify keeping them all. The Handbox and Doubler are stable down to 2 ohms, so I can use 2 M-Lines with them, though it's not often I really NEED both M-Lines. So I'll probably never sell them. I also like the Doubler because it has an XLR input so I can use it as a PA head for solo, duo and trio gigs, if those ever come back into existence. But do I really need both the Elf and the Interbass? Want, yes, but need? No.
[Edit]--forgot to mention that as the band that followed us was setting up while we were tearing down, their bass player's son, who was running their PA, commented on how great the bass sounded out front. I just thanked him, as we were hustling to get our gear off and didn't have time to stop and chat. I didn't even mention that it was basically a pedalboard amp he was so impressed with.
This really is a golden age in terms of gear. So many unbelievable cabs and heads out there that are loud, light and sound amazing. Just wish we were able to play more gigs safely.