Comments on: Zu Omen Tweeter and Capacitor Upgrade - A Stunning Improvement in Clarity

By: Geoffrey_Britain

Geoffrey_Britain — Thu, 24 Jan 2019 13:45:00 +0000

In reply to Tom Gibbs. That does clear it up, thanks Tom.

By: Tom Gibbs

Tom Gibbs — Wed, 23 Jan 2019 16:44:00 +0000

In reply to Geoffrey_Britain. Sorry, my bad here, I've done a poor job of explaining myself. I've corrected the article above to reflect the proper information. With regard to each of the Eminence high frequency drivers, the APT 50 has a frequency range of 3.5kHz-20kHz, and the ASD 1001 has a frequency range of 2.5kHz-25kHz. The 10-inch full-range driver, which carries all of the bass and midrange information, begins to roll off at 12kHz, leaving the supertweeter to carry everything from that point and above. Both drivers are not running full output over the entire frequency range. With the Clarity caps in the network, I don't know exactly at what point in the frequency spectrum the ASD 1001's output begins to be rolled off at the lower end, but there's a very nice transition between the two drivers that creates a very seamless presentation for the music. I do apologize for my lack of clarity here!

By: Geoffrey_Britain

Geoffrey_Britain — Wed, 23 Jan 2019 03:52:00 +0000

I'm a bit confused, hopefully you can clear it up for me. Quote: "The full range driver apparently rolls off somewhere around 12kHz, so the Zu supertweeter does carry a significant portion of the load." That certainly my understanding as well but then you state... "The APT 50 drivers in my Omen DW's ... cross over at 3.5kHz, and sell for $30 each. The ASD 1001 supertweeter ... crosses over at 2.5kHz" Are you telling us that the Zu's ASD 1001 supertweeter runs from 2.5kHz up along with the 10" driver, which drops off at 12k..? That both operate from 2.5kHz up?

By: Tom Gibbs

Tom Gibbs — Fri, 04 Jan 2019 02:10:00 +0000

In reply to 1Reasonable1. I'm so sorry, I just saw this today, I normally get an email whenever a post concerning a review is generated. The value is as follows: ClarityCap MR 400V 1.0µF. The caps can be purchased directly from Zu Audio (if they have them in stock): I got mine from Parts Connexion, and for an extra buck, they sent a tested, matched pair. For about the same price as Zu. As an FYI, the sound quality gets better and better with every passing day! Thanks for reading!!

By: 1Reasonable1

1Reasonable1 — Sat, 15 Dec 2018 18:37:00 +0000

I missed the capacitor values for the upgrade; is it 0.1 microfarads?

By: Smokeyjoecafe

Smokeyjoecafe — Thu, 01 Nov 2018 23:15:00 +0000

I believe the other option left out of the DW speaker is the speaker wiring terminals and cables. I believe it would be much more than your $140 upgrade investment but I wonder if it would make another jump in improvement and if you would consider that in the future? I used to love to tweak amps with better parts and build speakers from Speaker Builder in my youth. I’ve never heard Zu speaker but would like to one day. These days I listen to ML Montis speakers with an Audiomat Opera Integrated amp and turnturnable/CD player/MacBook Pro/mojo as my sources. I also enjoy reading Darko’s and your sites. All the best!