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03-23-2010, 04:07 PM
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#1 (permalink) |
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Member
Join Date: Jul 2009
Location: Tamp a Fl
Posts: 33
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Vinta 1960B cab, can I run on two speakers only?
Hi, looking for more clean head room with a JCM 800 2205 and a 1960 vintage cab with V30s. Can I switch the switch from mono to stereo and run on 2 speakers instead of 4. Is there any reason to do this and if so what would ne the result?
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03-23-2010, 05:13 PM
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#2 (permalink) |
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Senior Member
Join Date: Nov 2009
Posts: 134
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Re: Vinta 1960B cab, can I run on two speakers only?
The Marshall extension cabinet owners manual says that when 'stereo' mode is selected, the cabinet is split into two 8 Ohm 'halves' for use with a stereo power amp such as used in a rack system. When 'Mono' is selected you are offered two different inputs ( 4 Ohms or 16 Ohms) from which to choose. Always ensure you select the correct one to match the impedance of your amplifier and NEVER use both inputs at the same time when the cabinet is in ' Mono' mode. So I'm guessing that you could set your amp to 8 Ohms and use two of the 4 speakers. I don't know what the benefit would be.
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03-23-2010, 07:04 PM
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#3 (permalink) |
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Member
Join Date: Mar 2010
Posts: 76
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Re: Vinta 1960B cab, can I run on two speakers only?
Yeah, going from four speakers at 16 ohms to two speakers at 8 ohms will have the potential to give you less clean headroom, not more, since you'll be applying comparable power to half as many speakers.
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1990 JCM 900 2500 High Gain SL MKIII / 1960A 2002 JCM 2000 DSL 100 / 1960A 1989 VS-8240 2001 MG-30DXF Limited Edition Purple 2005 MS-2 My band : www.theexecutivesmusic.com |
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