Audio Asylum Thread Printer

Get a view of an entire thread on one page

FAQ / News / Events

OTL Asylum

RE: HHR TLS-2s, a Walsh-type full-range system.

24.6.59.190

In Reply to: RE: HHR TLS-2s, a Walsh-type full-range system. posted by jeffreybehr on November 30, 2022 at 11:53:10

What is it about these that makes them so difficult to drive? I see the mfg. recommends 400 watts! My little Avalons have roughly the same specs (87dB, 5Ω nominal) and I get plenty of volume with my 20 watt Linear Tube Audio ZOTL Ultralinear + integrated (I know, I know, not a real OTL, but that's what they call it) and even on my 8 watt Wavelength 300B amp. I don't listen above 90 dB peaks (and that's LOUD to me, even on Mahler) so I'm using not much more than 2 watts of my amps power. My speakers don't go nearly as low, so perhaps that's what those 400 watts are for. Or, I guess if you have a cavernous room and listen at live concert volumes. I can't do that even when the wife and daughters are out of the house.

Enjoy your new setup, I'm sure it will sound magnificent!

Follow Ups:

omni directional speakers always measure less than their real efficiency. - Ralph 14:17:32 12/01/22 (2)
This is because the microphone, place at one meter, simply does not pick up all the information leaving the speaker diaphragm.

It bounces around in the room though. Speakers like this need to have room from the wall behind them and the side so early reflections don't get interpreted has harshness.

In general once you are back a bit from the driver, they act as if they are about 5-6dB more efficient.

The concern I would have with them is that of any 'full range' driver, which is to say that they are never full range and Doppler Effect is well known to increase their distortion.
- TY, Ralph.. We'll hear them next week in my musicroom. - jeffreybehr 10:21:28 12/02/22 (1)
  They'll be about 5' (1.65m.) away from the front and side walls, and I have delicious-sounding MA-1s (v.3.1) ready for them...and a pair of PS Audio M1200s for summer use.
  - Here we are 3 days AFTER 'next week' and still no word... - jeffreybehr 11:22:20 12/12/22 (0)
    ...on where they are other than 'in Phoenix', which is a VERY large place.. Still waiting for the shipping Co. to return my call.
Don't know; maybe Dale listens at higher levels or... - jeffreybehr 16:33:02 11/30/22 (1)
...likes more dynamic punch than I do.
- These several comments on speaker sensitivity, listening levels... - jeffreybehr 11:25:20 12/12/22 (0)
  ...power required, etc., is encouraging.. I definitely will try the 30-Watt Auroras with the TLS-2s.

Post a Followup:

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.

This post is made possible by the generous support of people like you and our sponsors: