High Efficiency Speaker Asylum

Need speakers that can rock with just one watt? You found da place.

Return to High Efficiency Speaker Asylum

Alternatives to Altec 811b (with 802-8G)

151.30.37.215
Posted on October 31, 2009 at 13:24:37
sergio p
Audiophile

Posts: 53
Joined: April 28, 2000
 My system is composed by Altec 802-8G drivers, 811b horns, 414-8C woofers in 614 cabinets, custom 12db crossovers with mundorf capacitors with frequency cut at 1250 Hz.
I would like to improve it and as a first step, someone in this forum suggested me to change the 811b horns.
Well, which type of horn do you suggest to partner with the 802-8G driver?
If the wood horn is the way to go, which projects do you suggest and where can I find plans to built them or where can I buy them?
thanks
Sergio
Milan, Italy

RE: Alternatives to Altec 811b (with 802-8G), posted on October 31, 2009 at 19:43:29
Salectric
Audiophile

Posts: 347
Location: Maryland
Joined: February 23, 2003
 I would recommend an Altec 32A or 32B horn. This is a compact horn with a right-angle bend. It permits the horn to be mounted on the front panel in the same plane as the woofer. The 32A is aluminum, the 32B is plastic. The horn is rated for 850Hz, but I am using mine with a 1500 Hz xover. The 32 is very smooth and it doesn't ring like the 511 and 811.

I have a similar setup as yours. I have a 414 woofer in a cabinet based on the 614 dimensions, and I'm using the 802-8G in the 32B horn. The crossover has a major effect on the sound quality. I've tried a number of circuits but the one I like most is the one that came with the Altec 9849, which used the same drivers I'm using. The 9849 xover is 1.5K with 12db slopes and it has an impedance stabilizing zobel network for each driver. If you're interested in trying the 9849, you can occasionally find them on ebay. I recently measured the values in mine, and I can send you a copy if you're interested in building one yourself.

Dave

Page processed in 0.017 seconds.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2009, Audio Asylum, all rights reserved ] [ Go Green ] [ Take5 ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]