Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: leftu2 on December 28, 2020, 11:23:24 am
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(not sure where to put his post so mods please move if needed)
Hey guys,
I want to build a patch bay that will accept both the powered signal that comes from the speaker out of the
amp and have all the cabs on the same patch bay as well so I can run any configuration of amp and cab .
My question is if I use regular TS 1/4 switchcraft jacks and plastic washers to keep all the jacks isolated from the patchbay chassis, would that be O.K.?
I'm assuming the most important thing is you wouldn't want the patch bay chassis to provide any type grounding.
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i don't like it. i want to see the cable going from my amp into the speaker cabinet. adding complexity too something as simple as "plug and play" just increases the chances of something going wrong in my experience
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i don't like it. i want to see the cable going from my amp into the speaker cabinet. adding complexity too something as simple as "plug and play" just increases the chances of something going wrong in my experience
I agree it's a bit scary on weather or not a person might forget to patch the amp to the speaker and damage the amp.
I guess I should elaborate a little. For a yr.....with nothing damaged ( not switching amps while they are on)...... I've been using a ampeg system switcher that was a dealer only item that allowed customers to select from 1 of 8 amps and 1 of 8 cabs (2 knobs on the front that go from 1-8)
The reason I'm asking about building one (the ampeg is getting expensive when they come up for sale), is that I FINALLY got a fryette ps100 attenuator and I want to keep all my amps going to the ampeg, come out of 1 channel on the (to-cab) of the ampeg, go to the speaker-in on the fryette, put the fryette speaker-out on the patch bay and have all the cabs on the same patch bay so I don't have to keep plugging and unplugging speaker cables. The racks for the amps is up against the wall as well as the cabs. The fryette has separate selectors of 4-8-16 for both the amp ohms and speaker ohms so everything stays in check.
By the way that fryette is one bad boy, the transparency is really good at low attenuation levels. It has 6550s (it will boost as well as attenuate)
I tried it with a 1 watt marshall jvm 50th anniversary had that has a single 12AU7 pwr tube and the fryette kept the feel and tone of that marshall regardless of the 6550s....
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I’m not sure why you would want to isolate from the chassis of the bay.
Wire up two channels, one with and one without and use that to compare the results.