triggerthehorizon Posted Monday at 13:40 Posted Monday at 13:40 (edited) Hello, I have a question regarding compatibility with my bass amp and potential extension cab acquisition. My bass amp is an SWR Silverado Special Combo: 2X12" combo 350 watts at 4 Ohms 450 watts at 2 Ohms Internal speaker impedence is 4 Ohms The manual says it can take a minimum load of 2 Ohms. I am thinking of picking up an SWR Goliath JR III which is rated 8 Ohms. From my calculations Ive found that the total load of the 4 Ohm internal speaker + 8 Ohm extension cab would be (((4*8)/(4+8))= 2.7 Ohms)) as they would be wired in parallel. So I gather it would be safe considering 2.7 is greater than 2 Ohms. Is this correct? My question is: should I hold out for a 4 Ohm extension cabinet or will this setup sound as good only with a little less volume on tap? I'm mostly looking for additional presence and clarity, not volume. Thanks! Edited Monday at 18:34 by triggerthehorizon Quote
BassmanPaul Posted Monday at 17:34 Posted Monday at 17:34 If you are going to pick up an extension cabinet you would be better off buying a 4Ω box for the sake of power distribution. You may very well discover that the new 8Ω box adds very little to your overall sound. Quote
Bill Fitzmaurice Posted Monday at 18:27 Posted Monday at 18:27 Assuming the Silverado Special is a 2x12 I'd get a 4 ohm 2x12 extension. 1 Quote
triggerthehorizon Posted Monday at 19:10 Author Posted Monday at 19:10 42 minutes ago, Bill Fitzmaurice said: Assuming the Silverado Special is a 2x12 I'd get a 4 ohm 2x12 extension. Yes it is a 2x12 But what are the downsides of the 8ohm? The expansion cab speakers are 10 inch so I'm guesing they will add more high end and presence to the sound. Also there won't be any risk of damage at 2.7 Ohms since the amp can handle 2. IT would still be an upgrade over running only the built in cab no? Quote
Bill Fitzmaurice Posted Monday at 20:58 Posted Monday at 20:58 The difference between tens and twelves is slight. Just having the combo up on top of the extension will make the high end more obvious. For that matter putting it on a stand would. Quote
BassmanPaul Posted Monday at 21:02 Posted Monday at 21:02 Depending on the sensitivity and frequency response of the added cabinet it possibly could be a downgrade!! 1 Quote
triggerthehorizon Posted Monday at 21:42 Author Posted Monday at 21:42 Thank you for the input gentlemen Quote
Bill Fitzmaurice Posted Tuesday at 02:32 Posted Tuesday at 02:32 5 hours ago, BassmanPaul said: Depending on the sensitivity and frequency response of the added cabinet it possibly could be a downgrade!! True. Just like a box of chocolates when you mix drivers you never know what you're going to get. 1 Quote
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