Altec 604 (series)

[BigBamBoom]

If I may ask, could someone post a photo of an Altec "Big Red" monitor....? As this is the only 604 variation I have not yet seen.
I wonder what most would consider the most desirable 604, since there are so many versions. I may stand corrected but I think the 604-8K was the last version produced. I wonder if the "big red" monitor used this unit.
About a year ago.....an ad in my local want ads listed a pair of Big red monitors, $500.00. I never responded to the ad....at the time I had NO idea that these contained the wonderful 604.
BTW....was that price a score I missed? just curious.

Best wishes & thanks, JBL FOREVER/FOREVER JBL

[Don McRitchie]

Unfortunately, I don't have any photos. The Big Red dates from the early 70's and originally used the 604E. There were at least two versions. One had just the 604 with the Mastering Labs X-over. The second version added a 15" Utah driver as a helper woofer.

I believe they remained in production until the late 70's when the UREI 813, which also used the 604, pretty much took away their market share. Therefore, the last versions of the Big Red may have used the 604-8K, which was introduced in 1979.

I think the 604-8K is the best version of the 604. However, the UREI 813, with its horn and x-over mods, is widely considered the best 604 based system ever developed.

$500 for a pair of Big Reds is a steal.

[Guy L]

$500 is a steal. I own a pair of Big Reds and I think that they are amazing.

[johnaec]

How do those things compare with the UREI 811?

[BigBamBoom]

Thank you so much for the photo.....
Was wondering what inspired the name "Big Red". Had an image in my mind of some gastly red painted loudspeaker cabinet
Perhaps an Altec engineer was a "redhead".....& said what the hell.
Anyway, NOW I regret not jumping on that old local ad : "Altec big red monitors". $500.00" .....I thought it was some kinda musical instument speaker. So I did'nt respond. Probably never see 604's for that price again. Damn. Oh well.


Again, thanks for posting the image .

[Guy L]

Here's a pic of the driver - 604E2. It looks like a 604-8G but it's a 16 ohm driver. I don't think that the Big Red was offered with 604K driver since the ML crossovers were designed for 16 ohm drivers with the multicell horns and not the mantarey horn.

[Don McRitchie]

Perhaps an Altec engineer was a "redhead"

Just to be clear, the Big Red was not an Altec system. It was built and marketed by Audio Techniques of Stamford, Connecticut. It used an OEM 604 with a cross-over design that was licensed from Mastering Labs of California.

The genesis of the Big Red was a custom monitor designed by Sherwood Sax in the early 70's for his brother Doug's Mastering Labs studio. The deisgn used an unmodified 604 with a unique cross-over in a custom enclosure. The cross-over was primarily designed to tame a well known 2-4khz peak in the 604's response.

Once this monitor was installed, clients of Mastering Labs expressed interest in acquireing similar monitors. Doug originally approached Altec with an offer to license their cross-over design. Altec felt that their cross-over was perfectly adequate and declined to participate. This was a decision they would live to regret. Doug next approached Audio Techniques who was happy license their cross-over and build a system based on their design.

Audio Techniques was very successful, to the point that they pretty much drove Altec out of the studio market - at least for 604 based designs. However, by the end of the decade, the tables were to be turned on them with UREI's introduction of the 813 in 1977. The 813 also used an OEM 604 as a starting point. However, they completely redesigned the horn, and with E.M. Long, developed a cross-over that time aligned the 604 in addition to equalizing its response. This monitor was regarded as a significant step above the Big Red, and almost overnight, became the industry standard. Audio Techniques could not compete and discontinued the Big Red.

[robspierre]

While we're not on the subject: I need a cheep but masterful pair of crossovers for my 604-8G's that are in Model 19 like cabinets. BTW, I am a starving artist and can't afford hardly anything! Help!

Just to be clear, the Big Red was not an Altec system. It was built and marketed by Audio Techniques of Stamford, Connecticut. It used an OEM 604 with a cross-over design that was licensed from Mastering Labs of California.

The genesis of the Big Red was a custom monitor designed by Sherwood Sax in the early 70's for his brother Doug's Mastering Labs studio. The deisgn used an unmodified 604 with a unique cross-over in a custom enclosure. The cross-over was primarily designed to tame a well known 2-4khz peak in the 604's response.

Once this monitor was installed, clients of Mastering Labs expressed interest in acquireing similar monitors. Doug originally approached Altec with an offer to license their cross-over design. Altec felt that their cross-over was perfectly adequate and declined to participate. This was a decision they would live to regret. Doug next approached Audio Techniques who was happy license their cross-over and build a system based on their design.

Audio Techniques was very successful, to the point that they pretty much drove Altec out of the studio market - at least for 604 based designs. However, by the end of the decade, the tables were to be turned on them with UREI's introduction of the 813 in 1977. The 813 also used an OEM 604 as a starting point. However, they completely redesigned the horn, and with E.M. Long, developed a cross-over that time aligned the 604 in addition to equalizing its response. This monitor was regarded as a significant step above the Big Red, and almost overnight, became the industry standard. Audio Techniques could not compete and discontinued the Big Red.

[10 Watt Street]

An excellent solution is the Great Plains Audio Model N604-8A crossover, priced at $95 each:

http://www.greatplainsaudio.com/downloads/N604-8A.pdf