History on ohm A's and F's.

My design and implementation of a true Walsh sub...

Now, that's breaking new ground on this old design. Can't wait to hear more about it.

Dale, perhaps you could give us some technical insight into the perceived weakness/problems of the original Walsh drivers and how you have corrected or improved them. Especially, regarding output level and efficiency.

Darkmoebius, there is more info here.

http://forum.audiogon.com/cgi-bin/fr.pl?cspkr&1194658277

Hi Darkmoebius,

If you will go to the wesite www.hhr-exoticspeakers.com and look at the bottom of the "Products" page you will see a picture of the new TLS-I. Just above this picture is a hot link that will take you to a new page that fully expalins all the upgrades and design changes I have implemented on both the remanufactured units and the new TLS-I and II series.

I have done my best to address the issues that have been sent to me throughout the years from Ohm product users and I continue to work on new upgrades and designs daily. There is no rest for the wicked you know.

Dale

As a huge OHM F fan/owner I really enjoy the Q"s an A"s on this forum. I"m not sure who rebuilt my pair of F"s, but my eyes/ears tell me they were done correctly. The sound is just awesome in my 20x13x7 (audio room) which opens to a wet bar and half bath through a 7ft opening. My pair of F"s have a top end with plenty of detail/shimmer that is neither hot nor too recessed, leading into that glorious mid range. Female vocals are in room, singing to me. Bottom end has a natural foundation with good attack, enough thump as to not need a subwoofer.

I agree, OHM F"s are NOT for headbangers who think they need 110db to enjoy music. My pair sounds quite nice around 90-95db, from a Belles 55 preamp (subsonic filter engaged) to a VSP gold power amp (totally recapped) thanks again (audionut66@comcast.net) beautiful job!

In closing ... if your OHM F"s don"t sound correct, then they were repaired incorrectly. My all-time Favorite!

Just a question from a naive reader: wouldn't the transition from a wave-bending mode to a pistonic mode in a single driver result in an audible "crossover" effect, although perhaps much less audible than a well-managed crossover between two separate drivers?