Attenuating Altec 288C

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Posted by amandarae (A) on February 27, 2012 at 22:23:36

Hello guys,

I am running a somewhat 3-way speakers with Le' Cleach 350 horn, a bass reflex cabinet and a Fostex T90A(8 ohms)use as tweeter. The components are Altec 288C (24 ohms,115dB) for HF and Altec 416-8B (~99dB, 8 ohms)and the afformentioned T90A(104db). I attenuate the 288C about 15-16dB to match with the sensitivity of the bass driver using discrete components, the tweeter using an 8 ohm Lpad.

My question is between the 288C and the 416-8B drivers. Is there such a thing as a 24-ohm Lpad? Without resorting to active XO, what other "method" do you guys use to attenuate drivers with such a discrepancy in sensitivity between the two?

FWIW, I am running 1st order XO at about 900 Hz for the Altec 416, then about 15kHz from the 288C to the tweeter.

Thanks!

Abe

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Topic - Attenuating Altec 288C - amandarae 22:23:36 02/27/12 (21)

Fostex r100t for Attenuating Altec 288C - Kloss 07:11:51 03/01/12 (1)

Thank you Kloss! (NT!) - amandarae 23:12:29 03/01/12 (0)

Here's a great calculator program - Alpha Al 11:48:35 02/28/12 (1)

Thanks! - amandarae 15:48:18 02/28/12 (0)

RE: Attenuating Altec 288C - Carter Hendricks 10:29:35 02/28/12 (3)

RE: Attenuating Altec 288C - amandarae 15:49:49 02/28/12 (2)

Altec 288C wondering do you have a extra? - Kloss 06:27:15 03/01/12 (1)

RE: Altec 288C wondering do you have a extra? - amandarae 23:13:59 03/01/12 (0)

RE: Attenuating Altec 288C - Pro Sound Guy 06:27:30 02/28/12 (6)

RE: Attenuating Altec 288C - Alpha Al 11:44:50 02/28/12 (0)

RE: Attenuating Altec 288C - amandarae 09:46:23 02/28/12 (3)

RE: Attenuating Altec 288C - kyle 11:41:43 02/28/12 (2)

RE: Attenuating Altec 288C - amandarae 15:54:17 02/28/12 (1)

impedance - djk 18:15:36 02/28/12 (0)

RE: Attenuating Altec 288C - Hornlover 07:53:18 02/28/12 (0)

RE: Attenuating Altec 288C - jad 06:19:55 02/28/12 (1)

Thanks! NT - amandarae 15:58:23 02/28/12 (0)

RE: Attenuating Altec 288C - djk 23:40:31 02/27/12 (3)

Thank you! - amandarae 16:02:04 02/28/12 (2)

Ear - djk 18:12:22 02/28/12 (1)

Thanks again! - amandarae 20:09:19 02/28/12 (0)

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