604-E Crossover.

[Maulana]

Hi Folks,
Can anyone please help me out with the crossover design for 604-E? The original N1500A sound too fatique and piercing to my eardrum. Relentless search for a Doug Saxe Matering Lab Crossover or any improved version, came to no avail! If I've not spent $750.00 for a pair of 9cu.ft. cab, I would have given up Altec and go back to my AR3a. This is stressful for a retired 64 years old engineer. Any help will be greatly appreciated, and, thanking all in advance for the generous contributions.
Maulana.

[LICORNE]

The Mastering Lab XO was made for 2 Altec woofers
one 511E horn with 288-16G driver and a tweeter.
The whole thing is time aligned.

They like to mix loud as per their interview on the web.

Here is a link to modified crossovers for the 604.

http://home.earthlink.net/~jmarkwart/index.html

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[selmerdave]

Originally posted by CONVERGENCE:
[QB]The Mastering Lab XO was made for 2 Altec woofers
one 511E horn with 288-16G driver and a tweeter.
The whole thing is time aligned.

<font size="2" face="Verdana, Helvetica, sans-serif">???

All of the Mastering Labs crossovers I've ever seen were designed for and installed with 604's.

Schematic used to be here, but as I type it appears the server is down or is no longer up

http://www.soundpractices.com/images/604xover.pdf

Dave

[bowtie427ss]

The Mastering Lab XO was made for 2 Altec woofers
one 511E horn with 288-16G driver and a tweeter.

<font size="2" face="Verdana, Helvetica, sans-serif">I assume you're referring to the 9848A monitor with dual 411-16A's?

http://www.lansingheritage.org/html/...akers/9848.htm

[bowtie427ss]

ooops, my goof, i overlooked the mention of a tweeter. It's early and the mind fog is heavy this morning.

[Old Guy]

Convergence I have no clue where you got that info- my experience is the same as selmerdave.

[speakerdave]

There is a MasteringLab crossover for the 604E whose back-engineered crossover has been posted on the internet. As far as I know an authoritative schematic has never been published. If anyone has one, I would like a copy please.

The Sax brothers also had some large monitors made up as Convergence described which Doug Sax said he liked to use to find out what his mixes sounded like played really loud. The crossover for that was designed by his brother Sherwood, as I recall reading, and it also has never been published as far as I know. If anyone has the schematice I would dearly love to have it as well.

The tweeter was a EV T350. Some system!

David

[Fran604g]

hello speakerdave,
coincidently I was discussing this topic this morning over at AudioKarma and I have a copy of an article that appeared in a web publication called HiFi Scene published by Cristian Rintelen that is no longer in existence.
The link to it is here:
http://translate.google.com/translat...cene%26hl%3Den

In the copy that I have there is a schematic and component values.

[Fran604g]

Forgot to mention that the artcle is about Doug Sax's xovers for the 604's and 605's, not the others mentioned. I also believe that it may be article #15.

[LICORNE]

I'm sorry if I did bot respond sooner. I did not
monitor the site periodically.

As to the info concerning the interview about
The Mastering Lab Here is the site. You will find the answer concerning the big monitors at the top of page 3.

http://www.airshowmastering.com/newsimg/1.pdf

The tweeter is in fact a EV. I read this in another article.
As for the 604 Crossover Manley has the XO for a monitor they make with Tanoy parts.
Manley also makes tube mastering mixers. They actually sold quite a few recently.

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