Replacing Logitech Z-680 subwoofer

[flexo786]

hi
the sub on my logitech z680 speaker system has gone. now the original sub was 8 ohms and rated at about 180w. does can someone tell me if i was to replace it with a 4ohm 200-300 watt sub and never use the sub at high volumes would it be alright or would it cause the amp to below as its not 8 ohms

 

[flexo786]

-ad- the sub connects to the amp by two wires like any ordinary sub.

ataro i cant get an exact replacement but have got a choice between a generic sub that is 8 ohms and about 200 watts and an alpine sub that is about 300 watts but 4 ohms. i wanted to replace with the alpine as that should sound good. whats the worst that can happen if the ohms arent the same?

 

[flexo786]

the size of the sub is 8inches. so if i was to replace it with the 8 ohm sub thats a bit higher in watts then the original. as long as i dont use the sub on full volume i shouldnt have no problems then?

 

[flexo786]

Thanks a lot for the help AtaRo.

 

[flexo786]

Have you spoke to Logitech?

Theyre Very good with warranties, they've even replaced things for me when I cant locate the receipt.

logitech replaced it and told me to throw this away but i thought id try and get it working so i can use it with my pc

now i was wondering can someone help me. ive been looking for an 8inch 8 ohm sub for under £30 and have come across 2 that are in the budget. spec wise which one looks better

http://cgi.ebay.co.uk/ws/eBayISAPI....m=120327386447&ssPageName=STRK:MEWA:IT&ih=002

http://cgi.ebay.co.uk/ws/eBayISAPI....m=120333461463&ssPageName=STRK:MEWA:IT&ih=002

 

[flexo786]

no the rest of the set works. its just that the sub doesnt so ive removed the old sub and am looking to replace it. ive narrowed it down to them 2 but not sure which one to go for so was wondering can someone tell me spec wise which is the best

 

[flexo786]

no i mean ive took out the actual sub from the box. just need to find a new sub for it.
below is pic

 

[flexo786]

Ah! You didn't explain yourself very well.

Hopefully the replacement won't sound as horribly boomy though, I despise mine.

i think i actually like the boom of it as its sounds good with dance/bassline music.

now i was wondering can someone help me. ive been looking for an 8inch 8 ohm sub for under £30 and have come across 2 that are in the budget. spec wise which one looks better

http://cgi.ebay.co.uk/ws/eBayISAPI....m=120327386447&ssPageName=STRK:MEWA:IT&ih=002

http://cgi.ebay.co.uk/ws/eBayISAPI....m=120333461463&ssPageName=STRK:MEWA:IT&ih=002

anyone??

 

[flexo786]

bump
was hoping to order them now but the one i wanted has gone out of stock. now the specs for the original sub are 8 ohms 70Watt/140Watt max. now the only one available on ebay is 8 ohms but is 250w/500w maxx. would this damage the amp if i was to buy it and only use it at low volumes

 

[flexo786]

I found the specs of the Kevlar woofer on the bay and it's actually fairly compatible. I checked on the modelling software and it responds similarly when placed in the same box as the Logitech. It's missing a couple of mm xmax off of the Logitech sub which means your maximum bass output will be slightly reduced but it's not a big deal.



Ensure the driver is fitted airtight with whichever one you choose.

thanks for the reply. can i ask what do you mean by missing a couple of mm xmaxx and also how would i fit it in so thats its air tight as thought airtight is when the box doesnt have a port in it, this one has

 

[flexo786]

If your still keen I might be able to find a more suitable unit in the UK? but I can't guarantee anything suitable will be available in budget, let me know

do you think youd be able to get any for around £30 or am i better just ordering that one

 

[flexo786]

dr em ataro has offered me the sub from a creative S750 speaker package. seeing as this retailed for £250 and the amp is similar watts to mine would it be a better buy then the ebay one and thanks for your help so far