danbowskill Posted September 1, 2009 Share Posted September 1, 2009 (edited) can anyone help?i got a hartke ha2500 combo,i need a new extension but i am usure if i need a 4ohm or 8 as it dosnt say my amp what it is(ill will go for a 250wtt s either way. thanks Edited September 1, 2009 by danbowskill Link to comment Share on other sites More sharing options...
alexclaber Posted September 1, 2009 Share Posted September 1, 2009 Looks like your combo's internal speakers are 4 ohm nominal impedance and that's also the amp's minimum so extension speakers needs to be either identical 4 ohm cabs and then specially wired in series (complicated!) or you can use a more sensitive 4 or 8 ohm cab and use it with the internal speakers disconnected. My gut feeling is you're probably better off shifting it and looking for a secondhand head/cab if it isn't loud enough. Alex Link to comment Share on other sites More sharing options...
danbowskill Posted September 1, 2009 Author Share Posted September 1, 2009 (edited) [quote name='alexclaber' post='586752' date='Sep 1 2009, 06:57 PM']Looks like your combo's internal speakers are 4 ohm nominal impedance and that's also the amp's minimum so extension speakers needs to be either identical 4 ohm cabs and then specially wired in series (complicated!) or you can use a more sensitive 4 or 8 ohm cab and use it with the internal speakers disconnected. My gut feeling is you're probably better off shifting it and looking for a secondhand head/cab if it isn't loud enough. Alex[/quote] cheers mate,i used to have a 400w calsbro 8ohm cab i used to use on it and it blasted out a good un,i was thinking of a vx210 cab which is 200w 8ohms or peavey tvx210 175@8ohms,or might go for a small 15" mag/laney ritcher 15"just im not giging much now and need to downsize on a budget! :-( any recomendations????(this cab is an extra to the 210s already in my combo) Edited September 1, 2009 by danbowskill Link to comment Share on other sites More sharing options...
Leftbass Posted September 1, 2009 Share Posted September 1, 2009 Sorry that was unexpected. It is 4 ohms inside. Never mind Link to comment Share on other sites More sharing options...
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