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I bought a Fi BTL 18 a while back and I'm finally ready to buy another one. When I bought the first one, the inner heat sink option wasn't available and now it is. What is it anyways, and what does it do? Should I buy with that option this time around, or leave it off so that both subs are identical?
Posts: 1340 | From: Cleveland, Ohio | Registered: May 1999
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-------------------- Sound Mekanix - Dan Team Fi Ascendant Audio Team Sundown Team Kinetik Team Powermaster Sound Mekanix SPL Design Team 4th at Indy Finals 2007 (Bass Race 149.9 class) 6th at World Finals 2006 (Bass Race 129.9 class)
Posts: 880 | From: somewhere, usa | Registered: Oct 2006
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posted
i was also wondering about that heat sink though
-------------------- Sound Mekanix - Dan Team Fi Ascendant Audio Team Sundown Team Kinetik Team Powermaster Sound Mekanix SPL Design Team 4th at Indy Finals 2007 (Bass Race 149.9 class) 6th at World Finals 2006 (Bass Race 129.9 class)
Posts: 880 | From: somewhere, usa | Registered: Oct 2006
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posted
BTL's are not the same now, the new ones are being made...so they won't match regardless.
Its a machined aluminum ring in the gap that lowers the voicecoils inductance (allowing it to play up higher and have a little better overall transient response). It also reduces the volume inside the magnet gap of the motor increasing air speed with the cooling as well as allowing the coil to kick off heat to a more receptive thermal mass than magnets...
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I knew I should've waited until I could buy both at the same time!!!! SO my best bet is to sell it and buy a pair of new ones???
Posts: 1340 | From: Cleveland, Ohio | Registered: May 1999
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so the inner heatsink option is really just an aluminum shorting ring?
-------------------- World Record-Loudest SPL in my driveway Team Powermaster/XS-Power Hifonics Amps, Kicker subs-The way it should be....all were Stolen from me...boo hoo Zensky....World Domination at It's Finest www.zensky.com Posts: 3748 | From: Columbus, OH - formerly FL | Registered: Oct 2003
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probably not quite as commonly in true highpowered spl woofers. They can cause a slight dip in the BL curve, or average motor force. But anyone who is using them isn't just putting them in for now reason. For SQ and highend home drivers, very common for them to be used to balance the inductance from the x- stroke
-------------------- World Record-Loudest SPL in my driveway Team Powermaster/XS-Power Hifonics Amps, Kicker subs-The way it should be....all were Stolen from me...boo hoo Zensky....World Domination at It's Finest www.zensky.com Posts: 3748 | From: Columbus, OH - formerly FL | Registered: Oct 2003
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posted
yea there is a few home audio subs that use them was wondering about sq car audio drivers i know sq and car audio dont go together anymore,lol. with all the class
Posts: 6365 | From: north rose,ny | Registered: Aug 2002
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