Speaker size confusion

[lordrobs]

I need to replace the speakers in the rear parcel shelf of my 306 as they have gone, for want of a better word, 'farty' sounding.

AFAIK I need to fit 16.5cm speakers but after a trip down to my local Halfords and having a confusing time trying to work out what I need I just wanted to confirm what size I do infact need.

There seems to be very little choice in 16.5 cm but more of a selection at both 16 and 17cm's, infact the couple of online audio places i've tried don't even seem to have any 16.5cm's

Can any one shed any light on this? I had a look on the Halfords website and they have a pair of Infinity speakers that would be ideal, as I don't need anything flash, for a bargain £19.99 but they are out of stock online and instore they are £59.99

Can anyone put me on the right track for a cheap set of speakers that will screw straight in? They only need to be as good as the standard onees.

Thanks

 

[Jonny69]

In old money they were all 6.5" at that size so that's probably where the confusion is. Just ask for six and a halfs and they should know what you want.

 

[lordrobs]

That makes a lot of sense as the online place had everything in imperial. I'll have another look, thanks.