JBL L150 Bypass LPAD resistor values

Speaker Asylum

General speaker questions for audio and home theater.

I posted this over on lansingheritage, maybe someone here might know.

I'm wanting to bypass the LPADS on a set of L150's.

They have parts express LPADS installed.

When I measure the LPAD of either the mid or high, straight up 12 o'clock, I get ~19ohms parallel circuit, and ~4.5ohms series circuit.

This thread here
http://www.audioheritage.org/vbulletin/showthread.php?4306-values-on-resistors-in-Lpad-circuit-L96

has a chart for example needing a -3db attenuation, I would need 19.4 & 2.3. I saw another chart online that was about the same thing.

I have an original LPAD that measure 18.5 / 3.5 @ 12 o'clock.

Is it OK to be off +/- a few ohms in an attenuation circuit like this, or is it critical in order for the driver to see 8 ohms?

Also that link explains to remove the hard wired mid band attenuation resistors as well. The L150 has the same mid band attenuation, but I don't see a need to remove them unless the measurement somehow involves that circuit as well?

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

Michael Percy Audio

Topic - JBL L150 Bypass LPAD resistor values - jfine 21:50:15 01/28/16 (2)

RE: JBL L150 Bypass LPAD resistor values - djk 22:37:03 01/28/16 (1)

RE: JBL L150 Bypass LPAD resistor values - jfine 08:28:21 01/29/16 (0)

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.