Maplins Hifi drivers 8", 6.5"

[Village Plank]

Firstly, thanks for the replies to my skytronics thread..... Heres another one.

Anyone played with the maplin range of hi fi drivers.
8? 90W Shielded Bass/Mid Woofer : Hi-Fi Speakers : Maplin

I've had fun with these in the past but found they burnt up too easily and did'nt work well in dual cabinet setups.

EDIT..... Does anyone know who makes these?????

 

[consort_ee_um]

Regarding the 8in unit L74AW, on the plus side a 2 way design is possible as the response extends just beyond 3kHz. On the minus side there is a high Q break-up mode at 2.5kHz giving a 6dB peak. I notched this out with a series RLC filter 6.6mH 0.75uF & 20 ohm, placed across the driver. The trouble is the filter needs tweaking to get the frequency exactly right. I used a Maplin tweeter L65AW. I was going to use a ported 40litre box as the Qts is quite high. I used a third order3kHz filter on the woofer and a 2nd order on the tweeter as crossovers.