Prowler573
5,000+ posts
R.I.P. Gossamer!!
A matched pair of Crest 10001s
Bonus Round: I don't know if the collection includes units beyond those two and at what impedence you're going to run them. *shrug*
Bonus Round: I don't know if the collection includes units beyond those two and at what impedence you're going to run them. *shrug*
- Thread Starter
- #3
You are --> http://images.hollywood.com/images/large/l_2443507.jpg
Bonus round clue: 2 Crest 10k + ten more amps. Use lowest impedance rating
of the amp to figure out total. /yikes.
//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif
DBfan187
5,000+ posts
Supa's mom was here!
you getting power from Iran too?
Your running them at 2 ohms bridged for a total of 30,000 watts outa the two of them?
joetama
5,000+ posts
The British Ear
When is enough enough?
DBfan187
5,000+ posts
Supa's mom was here!
enough? what's that mean? elaborate please.
- Thread Starter
- #9
The AC power line I installed a while back was over-engineered. I used
three 2 awg cables {120v, 120v, neutral, and 4 awg for safety ground
for a 240VAC subpanel in the sound room. To keep losses lower, all amps
will be re-wired for 240VAC operation, cuts current draw on that main line in half.
Here is the battle station plans, revised.
PLX3402 bridged -> four tweeters, parallel 3.2 ohms. {left channel}
PLX3402 bridged -> four tweeters, parallel, 3.2 ohms. {left channel}
PLX3402 bridged -> four mids, parallel 2 ohms. {left channel}
PLX3402 bridged -> four mids, parallel, 2 ohms. {left channel}
Crest 10k bridged -> four 15" woofers {not sub duty}, 2 ohms {left channel}
... repeat above for right channel.
Two PLX3402 may do center channel and surround duty, unsure.
Ten PLX3402 -> 34,000 watts rated
Two Crest 10k -> 20,000 watts rated {second rating 30kw}.
We know that these ratings are based off some other industry standard
spec, not really the sine wave/rms method. So.. these are really 'musical' power
specs, they can deliver these power ratings on lower duty cycles {music}.
But the Crest is old school, I snagged the schematics and checked it out.
It's has big azz balls ... four transformers, 14 power transistors per rail,
which means 14 push, 14 pull transistors per channel {56 transistors total}.
PLX3402 has 16 transistors total by comparison and the power supply seems limited to 2kw
using rms method. /rough guess .. their power supply seems to be the weak link, hence
it's job is for tweets/mids. Perfect for that job.
So.. to drive the woofers with balls, the Crest makes more sense. The clipping
headroom is 320V {not factoring in losses}, PLX headroom is 260V.
I have to bring chaos to order ...
Ozzfest in a couple of years, free entrance tickets, but you pay traveling fees
to check it out.
To make the comedy higher, the room is small, one chair.. so this will be a torture
chamber, like jumping out of a plane with no chute ................................
I need subs though, no room for them ....... so we have to live with 32hz - 35hz
ported woofers, not really for HT but for metal music -> yay! ........... // slayer! //
three 2 awg cables {120v, 120v, neutral, and 4 awg for safety ground
for a 240VAC subpanel in the sound room. To keep losses lower, all amps
will be re-wired for 240VAC operation, cuts current draw on that main line in half.
Here is the battle station plans, revised.
PLX3402 bridged -> four tweeters, parallel 3.2 ohms. {left channel}
PLX3402 bridged -> four tweeters, parallel, 3.2 ohms. {left channel}
PLX3402 bridged -> four mids, parallel 2 ohms. {left channel}
PLX3402 bridged -> four mids, parallel, 2 ohms. {left channel}
Crest 10k bridged -> four 15" woofers {not sub duty}, 2 ohms {left channel}
... repeat above for right channel.
Two PLX3402 may do center channel and surround duty, unsure.
Ten PLX3402 -> 34,000 watts rated
Two Crest 10k -> 20,000 watts rated {second rating 30kw}.
We know that these ratings are based off some other industry standard
spec, not really the sine wave/rms method. So.. these are really 'musical' power
specs, they can deliver these power ratings on lower duty cycles {music}.
But the Crest is old school, I snagged the schematics and checked it out.
It's has big azz balls ... four transformers, 14 power transistors per rail,
which means 14 push, 14 pull transistors per channel {56 transistors total}.
PLX3402 has 16 transistors total by comparison and the power supply seems limited to 2kw
using rms method. /rough guess .. their power supply seems to be the weak link, hence
it's job is for tweets/mids. Perfect for that job.
So.. to drive the woofers with balls, the Crest makes more sense. The clipping
headroom is 320V {not factoring in losses}, PLX headroom is 260V.
I have to bring chaos to order ...
Ozzfest in a couple of years, free entrance tickets, but you pay traveling fees
to check it out.
To make the comedy higher, the room is small, one chair.. so this will be a torture
chamber, like jumping out of a plane with no chute ................................
I need subs though, no room for them ....... so we have to live with 32hz - 35hz
ported woofers, not really for HT but for metal music -> yay! ........... // slayer! //
Ya know what, I'm tempted to make a wikipedia entry under Overkill. Its gonna have thylantyr and what you just put about your insane toture chamber.
Cause, that is NUTS.
Cause, that is NUTS.
It is now one of my goals in life, to listen to your toture chamber and subject myself to the punishment thyantyr.
joetama
5,000+ posts
The British Ear
It's like going hunting with a nuclear bomb!!! You know when you have to run seperate power you have a problem!!
ngsm13
5,000+ posts
BSEE
Efficiency obviously means nothing.
NG
NG
- Thread Starter
- #14
It will be good punishment, you'll see. It's totally opposite of what people think
when they see big speakers with lots of amps. The trick is to get those unique
speakers. I found some very unique drivers for this project. I have a tweeter
that can do what ten PT2 do in an array but offer better SQ and low frequency
response. Put 16 of these tweeters in a room //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
The midranges I'm going to use are a special order from France. I ordered them
2 months ago, arrives in a few weeks. These mids and tweeters have a very
special synergy. I've bench tested one tweeter and one mid together and I was
able to 'amaze the natives'.. Imagine what 16 tweets, 16 mids will do in the final
design //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
The woofers are special, wideband woofers hand made. With clever use of an
EQ and doing a blind test, I can make you think they are tweeters with 16mm
of throw.
It's an amazing recipe that I spent years locating and testing. I need 8 more
tweeters to finish the driver collection phase of the project. It's going to be
crazy for sure.
- Thread Starter
- #15
Which efficiency are you referring too ? driver? amplifier ? money ? time ? //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif
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