AaronScho Posted August 16, 2011 Share Posted August 16, 2011 If I want to buy anouther cab does it have to be 4 or 8 ohm's ??? thanks !! Quote Link to comment Share on other sites More sharing options...
JTUK Posted August 16, 2011 Share Posted August 16, 2011 If this combo is designed to be run with an extention cab...if will very likely be 8 ohms for the exisiting connection, so therefore you'll need another 8 ohm cab. Check the manual...but I believe this amp is rated 200..and that will be at 4 ohms...so if you run the combo as is...you probably only get 130 watts or so.. adding anothe 8ohm can makes a potential 200w. This is why combo's aren't as convenient as they would make you believe..as you need another cab underneath anyway to get the full makers ratings..typically Quote Link to comment Share on other sites More sharing options...
xgsjx Posted August 16, 2011 Share Posted August 16, 2011 [quote name='JTUK' post='1341669' date='Aug 16 2011, 11:18 AM']If this combo is designed to be run with an extention cab...if will very likely be 8 ohms for the exisiting connection, so therefore you'll need another 8 ohm cab. Check the manual...but I believe this amp is rated 200..and that will be at 4 ohms...so if you run the combo as is...you probably only get 130 watts or so.. adding anothe 8ohm can makes a potential 200w. This is why combo's aren't as convenient as they would make you believe..as you need another cab underneath anyway to get the full makers ratings..typically[/quote] ? MB combo's usually have the LMII which is @ 350 watt at 8 ohm & 500 at 4 ohm. An ext cab would be 8 ohm. I don't understand the comment about why combos aren't as convenient as you'd need two 8 ohm cabs to get the most from the LMII anyway (NOT one 4 ohm cab). Quote Link to comment Share on other sites More sharing options...
JTUK Posted August 17, 2011 Share Posted August 17, 2011 Are we talking about the same combo..? when I google MB 115 JB combo, I get most pointers for this [url="http://www.musiciansfriend.com/bass/gallien-krueger-mb115-1x15-200w-ultralight-bass-combo-amp"]http://www.musiciansfriend.com/bass/gallie...-bass-combo-amp[/url] I say not convenient as people might buy a 200watt combo expecting that combo to put that out..whereas in reality, to achieve that max output, you'll need the amp driving into 4ohms, hence 2 cabs. ( it may well be the internal speaker is 4ohms, of course, but this is not the norm, IME. And once you get into 2 cabs...you negate the reason you likely got the combo in the first place..namely being compact and an all-in-one entity. Quote Link to comment Share on other sites More sharing options...
xgsjx Posted August 17, 2011 Share Posted August 17, 2011 Aah, now that's a question! I assumes that the MB was Markbass & JB for Jeff Berlend & this being the combo... [url="http://www.markbass.it/product_detail.php?id=75"]http://www.markbass.it/product_detail.php?id=75[/url] Quote Link to comment Share on other sites More sharing options...
JTUK Posted August 17, 2011 Share Posted August 17, 2011 [quote name='xgsjx' post='1343110' date='Aug 17 2011, 01:49 PM']Aah, now that's a question! I assumes that the MB was Markbass & JB for Jeff Berlend & this being the combo... [url="http://www.markbass.it/product_detail.php?id=75"]http://www.markbass.it/product_detail.php?id=75[/url][/quote] ha ha ..that makes sense as well. We need the OP to clarify. Quote Link to comment Share on other sites More sharing options...
AaronScho Posted August 19, 2011 Author Share Posted August 19, 2011 my bad !!! it is a Markbass combo Quote Link to comment Share on other sites More sharing options...
JTUK Posted August 19, 2011 Share Posted August 19, 2011 In that case...the extra cab will need to be 8 ohms. Paired, that rig should have potential to produce 500watts. Quote Link to comment Share on other sites More sharing options...
ThomBassmonkey Posted August 19, 2011 Share Posted August 19, 2011 [quote name='JTUK' post='1341669' date='Aug 16 2011, 11:18 AM']If this combo is designed to be run with an extention cab...if will very likely be 8 ohms for the exisiting connection, so therefore you'll need another 8 ohm cab. Check the manual...but I believe this amp is rated 200..and that will be at 4 ohms...so if you run the combo as is...you probably only get 130 watts or so.. adding anothe 8ohm can makes a potential 200w. This is why combo's aren't as convenient as they would make you believe..as you need another cab underneath anyway to get the full makers ratings..typically[/quote] Just to correct this in case anyone is looking for info on the GK mb115, the 15" speaker is actually rated at 4ohms, so you can't add an extension but will get the full 200w without. Quote Link to comment Share on other sites More sharing options...
JTUK Posted August 19, 2011 Share Posted August 19, 2011 [quote name='ThomBassmonkey' post='1345068' date='Aug 19 2011, 07:57 AM']Just to correct this in case anyone is looking for info on the GK mb115, the 15" speaker is actually rated at 4ohms, so you can't add an extension but will get the full 200w without. [/quote] ha ha.. typical, I thought there might be a sneaky thing that went across the norm somewhere...which is why it is always good to check the manual. But with the Markbass combo, an 8 ohm extention cab will get the full 500watts at 4 ohms. What cab do you have in mind, incidently? Quote Link to comment Share on other sites More sharing options...
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