Attenuators??

[Twisteramps]

If I could get a schematic of one of these things I could probably build it easily. I am a clarostat/ohmite distributor and we have tons of high power wire wound resistors in stock. It seems there is nothing really to them internally.

Weber MASS units actually have a speaker driver inside them - totally different from just heating up some resistors, imho.

Pete

[Dreamland_Rebel]

with the THD Hotplate and the marshall 1987x ... i would assume you'd want a 16ohm hotplate. which is sufficaint for 1 cab. but if you run 2 16 ohm cabs regularly, wouldn't you want the 8 ohm hotplate?

[jgcable]

with the THD Hotplate and the marshall 1987x ... i would assume you'd want a 16ohm hotplate. which is sufficaint for 1 cab. but if you run 2 16 ohm cabs regularly, wouldn't you want the 8 ohm hotplate?

I am running 2 different cabinets but not at the same time. One is 8 ohm and one is 16. This head is for recording only but I would like to noodle on it once in a while at home. Without a hotplate its entirely too loud for home use. Heck.. its entirely too loud for just about any use I can think of. What a great amp. Combining the 2 inputs is incredible. Channel 2 really brings up the bottom end.

[charvelguy]

some images

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[charvelguy]

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[charvelguy]

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[charvelguy]

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[jgcable]

Mini-Mass

I wound up buying a Weber 50w Mini-Mass. Its the one with the speaker driver. I got one pretty cheap on a Buy Now on Ebay for $85.00 shipped. Its only 3 months old and has only been used once. It should tame my 1987x enough so that I can record with the amp almost cranked. I also scored a Homebrew Big D distortion box. My plan is to run the Big D in front of the 1987x to slam the preamp tubes a little bit and run the 1987x volume on around 7 and attenuate it with the Weber. I'll then line out of the Weber into a channel on the board and run a 57 in front of the speaker cabinet into another channel.