HT for dummies

[oldbanger]

Hello,
Centre channnel
What I have in mind is an L112a turned on it's side.
I've procured the 128h & 044, but the LE 5-12 seems elusive.
Are there other mids that will suffice? Compromise is my middle name.
I bought a pair of used L150a x-overs, but I noticed the part #'s for L112a is different? Why would passive radiators affect xos?
If I want to build a L112 cab on it's side, what driver arrangement?
What is the port length and diameter of an L112?
What about rears? (Not yours, the HT.)
Al

[Zilch]

http://audioheritage.org/vbulletin/showthread.php?t=5706

[4313B]

Hello,
Centre channnel
What I have in mind is an L112a turned on it's side.
I've procured the 128h & 044, but the LE 5-12 seems elusive.
Are there other mids that will suffice? Compromise is my middle name.
I bought a pair of used L150a x-overs, but I noticed the part #'s for L112a is different? Why would passive radiators affect xos?
If I want to build a L112 cab on it's side, what driver arrangement?
What is the port length and diameter of an L112?
What about rears? (Not yours, the HT.)
AlMake it like a 4411.

The different part numbers denote different crossover assemblies - different wire lengths for instance. The L96, L112, and L150A networks are functionally identical.

[duaneage]

THe 4411 had a serious crossover network, very complicated. I think it is what set it apart from the 112, providing driver isolation better.

[4313B]

I've gone over all that in great detail. He'll have to do the homework himself from this point on.

[oldbanger]

Hi Guys;
This is an extraordinary forum.
A quick inquiry on the classified board brought lots of le5-12's out of the wood-work, thanks to 'blaster' from Ohio, a pair is on the way.
I guess I should have mentioned the horizontal L112A is meant to balance a L-R pair of L150A's. So the xo subleties of monitors vs. home stereo (now HT) prolly don't matter too much to me.
For driver placement, I'm thinking woofer centered, with tweet & mid on the top, either side, and the pots under the tweeter, and the port under the mid?
For rears, I've scored a local pair of Made in China 'JBL' type thingy's just to try this surround sound out. 100 wpc should make this a short-lived experiment.
Would contemporary L-15s make decent rears, or should I be looking for 3-ways like L-86, although the cabinet size is not much smaller than L112, and fitment becomes a problem.
Conversly, what about a speaker (has to be JBL) from a different era?
Thanks
Al

[GordonW]

Would contemporary L-15s make decent rears, or should I be looking for 3-ways like L-86, although the cabinet size is not much smaller than L112, and fitment becomes a problem.
Conversly, what about a speaker (has to be JBL) from a different era?
Thanks
Al

L15s would make fine rear speakers in such a system. Same tweeters, and same "family" of voicing.

I'd be hesitant about using an L20T (the later model). They're significantly "brighter" than the L112/L150. However, the L20T3 might work (they toned the tweeter down a bit, for those year models).

Otherwise, the the 4406 would also be good. They have adjustable tweeter levels, so matching them to the fronts should be a relatively routine matter.

Regards,
Gordon.