For Trey & Ben - JBL L166 Crossover Upgrade?
PrazVT
Posts: 1,607
My dad has been impressed w/ the XO mods on my LSi9s - and for someone who lectures me on spending money on audio stuff, he's been impressed w/ m 2ch and HT setups.
I was wondering how feasible it would be to do it - I've never cracked open those big boys so not sure how clean the xo setup is. Thoughts?
I think below is the circuit diagram and perhaps some stock crossovers for the L166s, as well as the speakers themselves. His are in great condition - I figure if he refuses to part with them, perhaps they can be upgraded
Just an idea...
I was wondering how feasible it would be to do it - I've never cracked open those big boys so not sure how clean the xo setup is. Thoughts?
I think below is the circuit diagram and perhaps some stock crossovers for the L166s, as well as the speakers themselves. His are in great condition - I figure if he refuses to part with them, perhaps they can be upgraded
Just an idea...
Dali Optikon 1Mk2
NAD D3020 V2
Schiit Bifrost 2/64
..the rest are headphone setups.
NAD D3020 V2
Schiit Bifrost 2/64
..the rest are headphone setups.
Post edited by PrazVT on
Comments
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We can make it happen!
- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit. -
I had a feeling you'd be up for this - thanks! I'll take a closer look at the speakers this weekend - perhaps crack them open and take some photos. Most probably it'll be a month or two before he can do this, but I thought I'd quietly start the pre-work.Dali Optikon 1Mk2
NAD D3020 V2
Schiit Bifrost 2/64
..the rest are headphone setups. -
Im down for anything with coils caps and resistors buddy!!
OH YEAH! Crossovers pump me up!- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit. -
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Hi guys! I just came across this quite old post with the same thing in mind - rebuilding the L166's crossover and then swapping it. Are you still around to share some insights about this project with me?
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The schematic is listed above showing the value of the 2 caps and 2 resistors. I also noted the sensitivity is rated at 76, 1 watt@ 3 meters. That's horrible!!!Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
The schematic is listed above showing the value of the 2 caps and 2 resistors. I also noted the sensitivity is rated at 76, 1 watt@ 3 meters. That's horrible!!!
Something does not seem right about that -- maybe that is the old EIA sensitivity spec, which was something like dB SPL at 30 feet (roughly ten meters, though) at 1 mW input power. https://www.diyaudio.com/forums/multi-way/119152-old-speaker-efficiency-rating-40s-db-print.html
EDIT: hmm...
http://www.lansingheritage.org/html/jbl/specs/home-speakers/1976-l66.htm
Yeah, this says 40 to 46 dB EIA (= 89.2 to 95.2 dB SPL @ 1 meter / 1 watt), depending on driver/frequency range, which sounds mo' better.
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Wow I barely even remember starting this thread lol. I didn't end up messing with the speakers as they were okay (still mains in my dad's ht).Dali Optikon 1Mk2
NAD D3020 V2
Schiit Bifrost 2/64
..the rest are headphone setups.
