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Topic: Split cabinet - reverb tank in the speaker cab |
MIchael Bean
From:
North Of Boston
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Posted 29 Jul 2013 6:24 am |
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| Has anyone here ever split a combo amp and left the reverb tank in the bottom of the speaker cab? Theoretically, it seems I can have a shorter amp head cab if I leave the tank down there and just connect the RCA cables when using the reverb. Any thoughts or suggestions? |
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Richard Sinkler
From:
aka: Rusty Strings -- Missoula, Montana
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Posted 29 Jul 2013 7:36 am
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Should be possible. I wouldn't do it because you may want to sell the head or cabinet at some point in time. I would also keep the head as close to the cabinet as I could, meaning I wouldn't have the head close to me with long cables running to the reverb spring. I don't know if the length of those cables would have any effect on noise or not. Someone will be able to answer that. It may have no effect on anything.
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Carter D10 8p/8k, Dekley S10 3p/4k C6 setup,Regal RD40 Dobro, Recording King Professional Dobro, NV400, NV112,Ibanez Gio guitar, Epiphone SG Special (open D slide guitar) . Playing for 55 years and still counting. |
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Craig Baker
From:
Eatonton, Georgia, USA - R.I.P.
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Posted 29 Jul 2013 8:10 am Reverb Mounting
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Michael,
For best results, your reverb cables should be as short as possible. Years ago, I had a Session 400. I didn't split the cabinet, but I hung the reverb tank on "L" brackets right under the amp chassis. Then, adding longer and larger guage wires, I relocated the power transformer down to the bottom of the cabinet where the reverb used to sit. Then rotated the transformer for minimum hum in the reverb circuit and fastened it to the bottom of the cabinet with heavy screws. Everything improved.
Also, having the tank close to the speaker is asking for feedback.
Accutronics has detailed information regarding the proper way to mount a reverb unit. Amazingly, most major amplifier companies continue to do it wrong. Here is a link to their website. Click on "Applications" and scroll down to mounting considerations.
http://www.accutronicsreverb.com/
Hope this is helpful Michael,
Respectfully,
Craig Baker 706-485-8792
cmbakerelectronics@gmail.com
C.M. Baker Electronics
P.O. Box 3965
Eatonton, GA 31024 |
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Olli Haavisto
From:
Jarvenpaa,Finland
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Posted 29 Jul 2013 8:40 am
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I have a Vibrosonic Reverb in a head/cab conguration with the tank in the speaker cab. Works great and the head is a whole lot smaller than the Dual Showman Reverb heads that look like combos....
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Olli Haavisto
Finland |
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Clyde Mattocks
From:
Kinston, North Carolina, USA
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Posted 29 Jul 2013 5:24 pm
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I'm thinking the smaller head would be nice if you were using an outboard reverb like the Holy Grail or RV7.
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LeGrande II, Nash. 112, Fender Twin Tone Master, Session 400, Harlow Dobro, R.Q.Jones Dobro |
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MIchael Bean
From:
North Of Boston
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Posted 30 Jul 2013 4:32 am
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Thanks to all for the advice.
Craig, thanks for the links to Accutronics -there's some eye-opening info there. With the tank vertically on the right side wall (back view), the RCA cables can remain the same length and be far from the transformer. |
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Craig Baker
From:
Eatonton, Georgia, USA - R.I.P.
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Posted 30 Jul 2013 5:05 am Reverb
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Michael,
Glad you checked into that. As much as this subject has reverberated around the forum, the major amplifier folks have all missed that page. Go figure.
Let us know when you reach the goal line Michael.
Respectfully,
Craig Baker 706-485-8792
cmbakerelectronics@gmail.com
C.M. Baker Electronics
P.O. Box 3965
Eatonton, GA 31024 |
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Jerry Overstreet
From:
Louisville Ky
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Posted 30 Jul 2013 5:39 am
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FWIW, I don't know about other amplifiers but I've been asked about doing this on the split cabinets that I build for Nashville 400's. Indeed, I tinkered with doing it on my own amp. I discourage doing that with the 400 mainly because of the Molex connector at the amp.
They are fragile to begin with and it's easy to crack the circuit there. Frequent connect/disconnects only increase failure rates. Then there's the issue of handling and storing the cables themselves.
Unless that has been modified and addressed with different cables and connectors it may not be a good idea.
With these amps, proper orientation of the tank inside about a 10 1/2" amp head cab will reduce hum to almost nothing and indeed be dead quiet in most cases. From my experience. |
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MIchael Bean
From:
North Of Boston
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Posted 30 Jul 2013 7:20 am
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Jerry,
Have you thought about going the route of a Molex to RCA or any type of more robust cable? Like an adapter, and the Molex could be anchored to the inside of the cab, as to eliminate stress on the pins. Someone else has a similar idea, but I would give a little more of a service loop to minimize the stress:
http://redplatecity.blogspot.com/2013/01/resurrecting-peavey-ultra-60-part-2.html |
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Jerry Overstreet
From:
Louisville Ky
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Posted 30 Jul 2013 8:08 am
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Yes, that is what my paragraph above about modified cables and connectors infers.
Yours is a much more helpful and thorough description. |
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MIchael Bean
From:
North Of Boston
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Posted 30 Jul 2013 8:50 am
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| Ah yes, Jerry. I did miss that line about the cables. |
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