Stargate Aurora Reference System
Almost all JBL drivers--
This is a five-way fully horn loaded system.
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For the deep bass it used three eighteen inch woofers (2 EVX180 and the center has a JBL 2242H) loaded in three seperate MGA subhorns. They have powerful low distortion response well below 20 cycles and are operating in mono below 35 cycles. The subs are behind the screen and take up the front wall.
The bass is handled by the two side wall placed bass horns. Each horn is loaded with two JBL 2220 Alnico 15" woofers operated in dipole isobaric (the back of the rear woofer is open to the room) for ultra low distortion and realistic impact. They cover the 35 to 160 cycle range.
The midrange horns are modified Sierra Brooks tractrix horns loaded with a JBL 2123J 10" drivers that has been specially treated. The back chamber is tuned with a tiny one liter enclosure for the best sound/response. These horns cover from 160 cycles to 1000 cycles. These are the soul of the system reproducing most fundementals. Sensitivity is 107 db with a watt.
The upper range horns Sierra Brooks tractrix horns loaded with JBL 2440 compression drivers. Thir range is 1000 cycles to 8000 cycles. Very refined and sweet sounding!
The ultra high treble is covered with a pair of fully charged JBL 2405 Alnico slot tweeters. They blend in just perfect with the rest.
Overall I find this system to be as close to perfect I have heard. it is triamped with an amp for the subs, another for the bass, and another for the 160 cycle up range. All the horns are alligned within 1/4 wavelength at the crossover frequency and require no sound degrading digital crossover. It REALLY gets the midrange right and has damn near heart stopping dynamics.
http://hometown.aol.com/batespm/images/soul5.jpg http://hometown.aol.com/batespm/images/soul3.jpg:)
Re: Stargate Aurora Reference System
Re: Re: Stargate Aurora Reference System
Quote:
Originally posted by Giskard
Very impressive! :)
Thanks you.
:p
Stargate Aurora Reference System
Hey, Mike...
That is beauty! Quite an intriguing design, and assemblage.
Tell me more about the pre-amps, mains and are you using any EQ at all? :hmm:
Re: Stargate Aurora Reference System
Quote:
Originally posted by boputnam
Hey, Mike...
That is beauty! Quite an intriguing design, and assemblage.
Tell me more about the pre-amps, mains and are you using any EQ at all? :hmm:
Hello, I use a simple transformer volume control preamp (TVC) made by Antique Sound Labs. It's dual mono and has lots of inputs and two line outputs. With it matching in and out impedence as well as output levels is critical. It's purely passive and sounds excellent. I use a seperate phono preamp with high gain 6922's for my moving coil cartridge. For the satellites I use a line level passive 2nd order network built into the front end of Audio Mirror 40 watt 6C33C SET mono amps. (have some other amps but these are the best) The bass horns are fed by a Crown PSA2 with a 4th order low pass Marchand electronic crossover XM1 module (kit), the Subhorns are driven With another PSA2 through a Paradigm X30 electronic crossover with a 3rd order lowpass set at 35 cycles.
No eq needed. I have both a digital eq and a pair of White parametrics but don't need them. The attenuators on the Crown amps allow me to countour the sound and match levels with the satellites/tube amps. It's all pretty simple considering it'a a triamped 5 way. :p
Re: Re: Stargate Aurora Reference System
Quote:
Originally posted by Mike Bates
It's all pretty simple considering it'a a triamped 5 way. :p
Ha! That, is what I expected. With that degree of parsing of the signal, and your detailed crossovers, you have great control, indeed...
Since you're not making good use of that crummy old obsolete (credits to John Nebel... ;) ) White, let me know any tracking info when you ship it out this way! :yes:
Re: Re: Re: Stargate Aurora Reference System
Quote:
Originally posted by boputnam
Since you're not making good use of that crummy old obsolete (credits to John Nebel... ;) ) White, let me know any tracking info when you ship it out this way! :yes:
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=3092166076
They're up for auction!
:p