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Thanks for the input guys. All interesting comments.

Hello, When I use this speaker in an open back Mesa combo cab, or in a regular non thiele sealed cabinet, the sound is very bright, and there is not much bass. I think part of the reason is that I am driving this speaker with lower wattage amplifiers, however the speaker seems to have an...

As of July 3 2007 the cost for Mr. Bendinelli to perform said modification is $450 USD. This price has gone up $200 over the last year and is cost prohibitive in my opinion(especialy for me in Canada, where shipping and some duties at the border are involved). It would be nice if this mod...

What I did for awhile with my MKIIB, was to replace the On/Off 100/60 Watt toggle switch in my amp, with an On/On swith that allowed me to use either the 2 outside or the 2 inside tubes. I then used Groove Tube adaptors on the outside and a pair of 6L6s on this inside. I have used the amp for...

Hello, I own a set of the Groove Tube 928PR that I have used with my MKIIB. I then ran the amp into an attenuator. I used this to overdrive the clean channel without using the lead mode. My results were that I fried the 2watt resistors inside these adaptors by turning the master volume above...

Hi Guys, I am interested in a BA and I was wondering if anybody ran it with 2 of 4 EL84 tubes for a lower wattage output. Thanks.

I have a 60/100 watt MKIIB and I changed the wiring to allow either the two inside or the two outside power tubes to be used at a time(not all 4 tubes together). In two of the sockets I have Groove Tube power reducers(PR-98) with EL 84 tubes. I like the sound of the clean channel master...