Jehosaphat
326 posts
Oct 25, 2012
2:24 PM
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or two?
Just want to experiment a bit.I know it is verbotten to diconnect a valve amp completely from a speaker load but will it be OK say with just two connected.
Its a Blues Deville 410 (RI)
TIA
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rainman
26 posts
Oct 25, 2012
2:35 PM
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I was afraid you were going to disconnect your speaker with a 4-10 shotgun. I was relieved to see that wasn't the case. ;) I would assume you would be changing the impedance by doing that but not sure how they are wired. That would be my concern.
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STME58
274 posts
Oct 25, 2012
9:42 PM
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@rainman,
I thought the same thing. I was going to recommend a 12 gauge as a .410 requires more skill to hit the target with. You need to be sure you really want to disconnect it permanently as reconnecting will be difficult.
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Jehosaphat
327 posts
Oct 25, 2012
11:00 PM
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Shotgun?Woosie.
As a Kiwi i would just use some fishing dynamite and do a proper job.^
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5F6H
1402 posts
Oct 26, 2012
1:48 AM
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"Just want to experiment a bit.I know it is verbotten to diconnect a valve amp completely from a speaker load but will it be OK say with just two connected.
Its a Blues Deville 410 (RI)"
Short answer, in your case, "no".
Longer answer - The speakers in the Blues Deville are wired series-parallel (or parallel-series...I can never remember which) for 8ohms total. Depending on which speakers you remove & how they are wired you will get differing results.
If a 2ohm amp has 4x10" 8ohm speakers of an adequate W rating (20W each or better) wired in parallel @2ohms, then yes you could disconnect one speaker & run at 2.67ohms total 60W+ rating. The Blues Deville also has a 2ohm speaker tap (unused, and a 4ohm one), a tech could rewire your amp with the speakers in parallel to allow the choice of 3 or 4 speaker use, parallel wired. If the speakers were of a 35W rating or better, you could use just 2 in parallel for 4ohms total load on either the 2, or 4ohm tap.
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Last Edited by on Oct 26, 2012 4:27 AM
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