ceecrb1 Posted June 13, 2010 Share Posted June 13, 2010 Ok trying to wrap my head around a problem I´ve been asked about.. Know a tech who owns some kit, he has 4 speakers that are 1000W 8 ohm, and 4 speakers that are 1000W 4Ohm.. Now hes renting them out for a few mobile discos over the summer and has told me that the 4ohm kit sounded distorted and saturated where the 8 ohm kit didnt.. Of the amps he has he is running 2 1000w speakers per channel with speakon in the normal paralel.. now what hes asked me is if making a converter to change the speakon system into series would help alot, so that the 4ohm speakers dont end up being a total of 2 ohms, but 8... my brain isnt getting round what the final outcome would be.... comments? Link to comment Share on other sites More sharing options...
csg Posted June 13, 2010 Share Posted June 13, 2010 such an arrangement would present the amp with a load its obviously happier with, but the problem could be solved as simply as reducing levels to a point where the amp is not hitting its limits. a better solution might involve just using 2 of the 4 ohm speakers with this amp, or purchasing another amp that is happy with 2 ohm loads to run all 4 4 ohm speakers, or to run the second pair of 4 ohm speakers on their own in other words, there are several ways to solve this issue, but I would start by simply checking the gain structure and ensure that everything is running within its limits. Link to comment Share on other sites More sharing options...
ceecrb1 Posted June 13, 2010 Author Share Posted June 13, 2010 seems totaly sensible.. Its one of those problems where I cant get my hands on the kit as its over a 2 hour drive away and I´m doing this over the phone...also its for DJ´s.... the "more is best" bunch.. Link to comment Share on other sites More sharing options...
Jivemaster Posted June 14, 2010 Share Posted June 14, 2010 Parallel 8 ohm speakers will be 4 ohms which the amp may find OK, Parallel 4 ohm speakers will be 2 ohms that the amp may well NOT be good for. This may well cause crossover and tweeter failure as the distortion due to overload adds harmonic distortion. Run parallel 8 ohm speakers, but only run one 4 ohm cab from each output take the spare 4 ohm cabs away. Link to comment Share on other sites More sharing options...
TimmyP1955 Posted June 28, 2010 Share Posted June 28, 2010 The only kit you need is (per amp channel) a wee box and three connectors to mount in the box (hopefully his speakers use Speakon), and a few bits of wire. Cable goes from amp to connector 1 (input). Inside the box: Connector 1+ is wired to connector 2+ (output A) Connector 1- is wired to connector 3- (output B) Connector 2- is wired to connector 3+ Link to comment Share on other sites More sharing options...
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