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omni directional speakers always measure less than their real efficiency.

75.168.151.243

In Reply to: RE: HHR TLS-2s, a Walsh-type full-range system. posted by Sibelius on November 30, 2022 at 12:41:37

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.

Follow Ups:

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.

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