new idea
CLUBCARRERA
Posts: 25
1.2tl +1.2tl one cabinet with 18" pr one crossover running parallel to tweeters for one drops main speaker to four ohm load overall
Post edited by CLUBCARRERA on
Comments
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Why ohhhh why?--Gary--
Onkyo Integra M504, Bottlehead Foreplay III, Denon SACD, Thiel CS2.3, NHT VT-2, VT-3 and Evolution T6, Infinity RSIIIa, SDA1C and a few dozen other speakers around the house I change in and out. -
just for fun to see or read what people think
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Main Rig:
Krell KAV 250a biamped to mid/highs
Parasound HCA1500A biamped to lows
Nakamichi EC100 Active xover
MIT exp 1 ic's
Perreaux SA33 class A preamp
AQ kingcobra ic's
OPPO 83 CDP
Lehmann audio black cube SE phono pre, Audioquest phono wire (ITA1/1)
Denon DP-1200 TT. AToc9ML MC cart.
Monster HTS 3600 power conditioner
ADS L1590/2 Biamped
MIT exps2 speaker cable -
I think you have crazy idea's
but hey that what makes the world turn! check out this crazy design
http://www.parts-express.com/audio-artistry-cbt36k-line-array-speaker-pair-kit--301-980
If you can dream it ...someone will build it...well sometimes!2 ch- Polk CRS+ * Vincent SA-31MK Preamp * Vincent Sp-331 Amp * Marantz SA8005 SACD * Project Xperience Classic TT * Sumiko Blue Point #2 MC cartridge
HT - Polk 703's * NAD T-758 * Adcom 5503 * Oppo 103 * Samsung 60" series 8 LCD -
http://www.mcintoshlabs.com/us/Products/pages/ProductDetails.aspx?CatId=Speakers&ProductId=XRT1K
source: http://www.stereophile.com/content/mcintosh-system
... or... at the other end of the spectrum:
http://ratch-h.com/farm.html
(no extra charge for nightmares occasioned by the mantle art or the dolls...) -
mhardy6647 wrote: »
(no extra charge for nightmares occasioned by the mantle art or the dolls...)
.... and now I really wish I could un-see that....Polk Lsi9
N.E.W. A-20 class A 20W
NAD 1020 completely refurbished
Keces DA-131 mk.II
Analysis Plus Copper Oval, Douglass, Morrow SUB3, Huffman Digital
Paradigm DSP-3100 v.2 -
yeah, but the speakers are cool... and, in all seriousness, those "69 cent wonder" PartsExpress closeout drivers (PE cat. no. 269-469, Pioneer OEM) were amazingly good sounding fullrange drivers.
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CLUBCARRERA wrote: »just for fun to see or read what people think
I'm one to promote experimentation. I've done some interesting things too, sometimes it was a waste of money but I always learned something from it. If you have funds and the knowledge to design the XO and select the drivers. Go for it. Who knows?
I would like to hear them.'65 427 Shelby Cobra
'72 Triumph TR-6
__________________
'88 Polk SDA SRS 1.2, with upgraded XO caps and Erse SDA inductors
'86 Polk SDA CRS+
'84 Polk Monitor 10A (Peerless tweeters)
'05 HSU VTF-3 Sub (Original OEM)
'20 HSU VTF-3 Sub (three more, 100% cloned)
'93 Carver TFM-35
'88 Carver M-1.0t
'88 Adcom GFT-555
'88 Adcom GFP-555
'88 Adcom GFA-555 (upgraded/restored)
'88 Adcom GFA-555 (a second one upgraded/restored)
'05 Onkyo DV-555 media
'89 Fosgate 360 Digital Space Matrix
'89 Fosgate 360 Digital Space Matrix, internal surround amp bridged to drive only a center channel
'91 Kenwood Basic M1D Amp
'89 Pioneer Laser Disc media
'89 Sony SuperBeta HiFi media
One PGA2310 based custom built remote volume control
Four Polk T-15's
Four Polk TSi-200's
Four Polk TSi-100's
Two Polk CS-10's -
If you have funds and the knowledge to design the XO and select the drivers.
That is his problem, he doesn't. He thinks that removing the magnet and voicecoil from an 18" JBL woofer will net him a passive radiator.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
How is this different from your other thread: http://www.polkaudio.com/forums/showthread.php?163097-the-next-sda-srs-1.2-tl
other than a few more woofers and tweeters?Home Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
How is this different from your other thread:
He didn't get enough attention.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
That is his problem, he doesn't. He thinks that removing the magnet and voicecoil from an 18" JBL woofer will net him a passive radiator.
It will but the cone would require some mass damping for any chance to achieve the correct response to the cabinet.
This one would be a better starting point. http://www.parts-express.com/tc-sounds-vmp-18-passive-radiator--293-684'65 427 Shelby Cobra
'72 Triumph TR-6
__________________
'88 Polk SDA SRS 1.2, with upgraded XO caps and Erse SDA inductors
'86 Polk SDA CRS+
'84 Polk Monitor 10A (Peerless tweeters)
'05 HSU VTF-3 Sub (Original OEM)
'20 HSU VTF-3 Sub (three more, 100% cloned)
'93 Carver TFM-35
'88 Carver M-1.0t
'88 Adcom GFT-555
'88 Adcom GFP-555
'88 Adcom GFA-555 (upgraded/restored)
'88 Adcom GFA-555 (a second one upgraded/restored)
'05 Onkyo DV-555 media
'89 Fosgate 360 Digital Space Matrix
'89 Fosgate 360 Digital Space Matrix, internal surround amp bridged to drive only a center channel
'91 Kenwood Basic M1D Amp
'89 Pioneer Laser Disc media
'89 Sony SuperBeta HiFi media
One PGA2310 based custom built remote volume control
Four Polk T-15's
Four Polk TSi-200's
Four Polk TSi-100's
Two Polk CS-10's -
Apparently. I'd still like to know how you're going to wire 6 or 8 woofers, and end up with a nominal 4 or 8 ohm impedance seen by the crossover.He didn't get enough attention.Home Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
Eight drivers are easy.
For example.
1) Two 8 ohm drivers in parallel = 4 ohms
2) (Two two-driver) arrays from step 1) in series = 8 ohms
3) (Two four-driver arrays from step 2) in parallel = 4 ohms -
Now do it for 8 ohmsHome Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
You said 4 or 8 ohms in post 14 ;-)
Well, as an empiricist, I know that we can get close enough.
First two configurations that come to mind.
Six woofers:
1) three in series = 24 ohm "module 1"
2) Two "module 1" in parallel = 12 ohm "module 2"
Very amplifier-friendly (nominal) load
or...
Eight woofers:
1) Two 12 ohm "module 2" above in parallel = 6 ohm "module 3" (six woofers in toto)
2) On 8 ohm woofer in parallel with one "module 3" = 3.4 ohm "module 4" ( for module 4, Rt = 1/(1/6 +1/8) = 3.4 ohm)
3) Two 3.4 ohm "module 4" in series = 6.8 ohm "module 5"
or... I can think of a couple of ways to get a nominal impedance of 7 ohms... -
I was kidingmhardy6647 wrote: »You said 4 or 8 ohms in post 14 ;-)
Well, as an empiricist, I know that we can get close enough.
First two configurations that come to mind.
Six woofers:
1) three in series = 24 ohm "module 1"
2) Two "module 1" in parallel = 12 ohm "module 2"
Very amplifier-friendly (nominal) load
or...
Eight woofers:
1) Two 12 ohm "module 2" above in parallel = 6 ohm "module 3" (six woofers in toto)
2) On 8 ohm woofer in parallel with one "module 3" = 3.4 ohm "module 4" ( for module 4, Rt = 1/(1/6 +1/8) = 3.4 ohm)
3) Two 3.4 ohm "module 4" in series = 6.8 ohm "module 5"
or... I can think of a couple of ways to get a nominal impedance of 7 ohms...Home Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
If you took your original formula and substituted 4 ohm drivers, and for step 3 put them in series instead of parallelHome Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
Thank god the forum update dropped the picture of the OP's abomination,
The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
