Maplins Hifi drivers 8", 6.5"

Village Plank · 4th May 2010, 03:23 PM

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 · 4th May 2010, 06:21 PM

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.

4th May 2010, 03:23 PM	#1
Village Plank diyAudio Member Join Date: Dec 2008 Location: Sunny Sheffield now Barnsley	Maplins Hifi drivers 8", 6.5" 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?????

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4th May 2010, 06:21 PM	#2
consort_ee_um diyAudio Member Join Date: May 2004 Location: Hertfordshire	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.

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