Bassulike66 Posted January 28, 2011 Posted January 28, 2011 Firstly forgive my ignorance on this matter, but i have the age old Ohms question! I am currently running an Ashdown ABM 810 4 ohm cab, driven by an Ashdown 600w MAG amp. (with 2 x 4 0hm outputs). I am pondering on running an Ashdown ABM115 at 8 0hms, (300W continuous, 600W programme). Would there be a significant change/clash in sound when running these two cabs together, would there be any damage caused to frequencies, signal, or speaker???!!! Thanks in advance... Quote
markstuk Posted January 28, 2011 Posted January 28, 2011 I suspect the MAG600 only makes 300W or so into 8 Ohms.. So you're in the right ballpark (I'm assuming the 115 is instead of the 810 rather than "as well").. You can always email ashdown directly.. They pretty good at getting back to people.. Quote
Bassulike66 Posted January 28, 2011 Author Posted January 28, 2011 I was thinking of both together.... Quote
Bloodaxe Posted January 28, 2011 Posted January 28, 2011 It all depends on those two output sockets on your head. If they're individually labelled 4 Ohms, you [i]should[/i] be fine... but if the labelling suggests that the total impedance for both is 4 Ohms, then you're potentially in trouble. The 'standard' is for a [b]total[/b] load of 4 Ohms [i]irrespective of the number of sockets[/i]. Plugging an 8 Ohm cab and a 4 Ohm cab into them will result in a load of 2.67 Ohms, & that would be bad. Check via Ashdown if there's any doubt - they have an archive of user manuals & the specs should reveal all. P. Quote
Bassulike66 Posted January 28, 2011 Author Posted January 28, 2011 Thanks for the advice guy's.. I will head off into the direction of Ashdown world just to be sure. Quote
Protium Posted January 28, 2011 Posted January 28, 2011 99% sure the outputs are parallel, so will be 4ohm total. Means you can't use both cabs together unfortunately. Quote
Bassulike66 Posted January 28, 2011 Author Posted January 28, 2011 (edited) [quote name='Protium' post='1106386' date='Jan 28 2011, 04:29 PM']99% sure the outputs are parallel, so will be 4ohm total. Means you can't use both cabs together unfortunately.[/quote] It's certainly looks that way! I've just had a glance at their manual archive, it's about as informative as the dead sea scroll's! I'm pretty sure the outputs are parallel.... I've mailed them just to clarify, i would hate to stuff it up! Edited January 28, 2011 by Bassulike66 Quote
bigjohn Posted January 28, 2011 Posted January 28, 2011 You could always rewire the 8x10 to be 8Ohm. Quote
Bassulike66 Posted January 28, 2011 Author Posted January 28, 2011 Reply from Ashdown.... "The amp will give you it's full power when loaded into 4 Ohms... The two sockets are joined together internally, so you can for instance connect TWO 8 Ohm cabs to give you the minimum 4 Ohms impedance for full power".. So there we go, question answered! Quote
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