tfm35 with als111

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2-tall
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tfm35 with als111

Post by 2-tall » Thu Jun 25, 2009 9:28 pm

Just pickrd up a tfm35 .I have a choice between using this or using two tfm24's on my als111.Any opinoins?

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Re: tfm35 with als111

Post by mewisemagic » Thu Jun 25, 2009 10:14 pm

might be better to use 2- 24's
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Re: tfm35 with als111

Post by TNRabbit » Fri Jun 26, 2009 2:34 am

mewisemagic wrote:might be better to use 2- 24's
I agree. Bi amp.
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Sunfire TG-IV/400~7 Amp
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Re: tfm35 with als111

Post by thuffman03 » Fri Jun 26, 2009 10:17 am

Use the two 25's for sure.
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Re: tfm35 with als111

Post by frankieD » Fri Jun 26, 2009 1:37 pm

Or you could bi-amp with 1 of the 24's on the woofers & the 35 on the ribbons couldn't you?


Just a thought.

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Re: tfm35 with als111

Post by BillD » Fri Jun 26, 2009 1:45 pm

Or just use 2 '35s. That's less than I use into my AL-IIIs.
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Re: tfm35 with als111

Post by elgrau » Fri Jun 26, 2009 3:15 pm

Try both; whichever sounds better go with that. Also, if alsIII's much less than 8 ohms impediance then bridging the two 24's probably not the way to go. Or were you bi-amping them?
FR: 400 disk changer with PS Audio Digital Link III DAC; Technics SL-1100A TT. QED Quenx1 IC's from DAC & TT to Adcom GTP-602 preamp/Tuner. AudioQuest King Cobra IC's from preamp to M1.0t mk-II opt2. QED Silver Spirals 4M wires to EPI 1000’s.
LR: AudioEngine wireless link from family room preamp to Barcus-Berry 2002R Sonic Maximizer to GlowPower Zyxt IC's to Sunfire 300x2 to Nordost 6M bi-source wires to AOS 28" MDF spherical speakers using six 6.5" woofers and eight 1" dome tweeters symm. arranged around the surface.
SS system: CX-995V DVD to AV-634x 3-4 channel amp (center/rears) & M1.0t mk-II opt2(fronts).
Garage: 300 disk changer to Entech 202.5 DAC to MXR150 Receiver (pre) to TFM-42 to EPI 400 speakers.

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Re: tfm35 with als111

Post by stevewithrow » Fri Jun 26, 2009 5:34 pm

elgrau wrote:Try both; whichever sounds better go with that. Also, if alsIII's much less than 8 ohms impediance then bridging the two 24's probably not the way to go. Or were you bi-amping them?
One 24 would go to the ribbons and the other 24 to the woofers......

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Re: tfm35 with als111

Post by BillD » Fri Jun 26, 2009 5:41 pm

If you have identical amps, I'm in favor of vertical bi-amping, with one amp on each speaker (one channel on the ribbons and one on the bass). This way, the amp can share power between channels, and it's unlikely that there will be a lot of treble content at the same time there is a lot of bass. However, usually high bass content shows up in both L & R channels at the same time.
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Re: tfm35 with als111

Post by frankieD » Fri Jun 26, 2009 6:13 pm

Good call BillD but he only has 1 TFM35. He could use 1 TFM 24 (alone) for each channel of woofers & the TFM 35 for the ribbons.

I'm assuming the ribbons need more power than the woofers from everything I've read (my instinct would be the opposite with the bass drawing more power).

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Re: tfm35 with als111

Post by BillD » Fri Jun 26, 2009 6:31 pm

Bass just uses more juice (the area under a 40 Hz sine wave versus a 10kHz sine wave) But, the wider frequency a driver covers (like a ribbon going from 150 Hz ->), coupled with their inefficiency, you might be right. Aside from my M-400s, I've never had two amps that were the same. Even my M-400s are like the black and white Scotties (one black, one champagne), so I've never tried vertical bi-amping with two separate amps. I have four channels of a Sunfire 400 ~ seven bi-amping my AL-IIIs.
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer

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Re: tfm35 with als111

Post by elgrau » Fri Jun 26, 2009 7:18 pm

One day I'll post a plot of dissapated power vs frequency (at constant SPL). I suspect it will show ~90% of power goes to frequencies below ~1k Hz.
FR: 400 disk changer with PS Audio Digital Link III DAC; Technics SL-1100A TT. QED Quenx1 IC's from DAC & TT to Adcom GTP-602 preamp/Tuner. AudioQuest King Cobra IC's from preamp to M1.0t mk-II opt2. QED Silver Spirals 4M wires to EPI 1000’s.
LR: AudioEngine wireless link from family room preamp to Barcus-Berry 2002R Sonic Maximizer to GlowPower Zyxt IC's to Sunfire 300x2 to Nordost 6M bi-source wires to AOS 28" MDF spherical speakers using six 6.5" woofers and eight 1" dome tweeters symm. arranged around the surface.
SS system: CX-995V DVD to AV-634x 3-4 channel amp (center/rears) & M1.0t mk-II opt2(fronts).
Garage: 300 disk changer to Entech 202.5 DAC to MXR150 Receiver (pre) to TFM-42 to EPI 400 speakers.

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Re: tfm35 with als111

Post by 2-tall » Sun Jun 28, 2009 12:44 pm

I'll go with the two tfm 24's and put the tfm35 on my polk 3.1 tl's.I also picked up a ct7 pre amp.Does anyone know where I can get a manual for it?

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Re: tfm35 with als111

Post by RichP714 » Sun Jun 28, 2009 2:06 pm

elgrau wrote:One day I'll post a plot of dissapated power vs frequency (at constant SPL). I suspect it will show ~90% of power goes to frequencies below ~1k Hz.
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Re: tfm35 with als111

Post by TNRabbit » Sun Jun 28, 2009 3:47 pm

That's assuming an equal load, Rich. Personally, I'd put the heftier amp on the ribbons...they are pretty goddamn hungry...
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From FrankieD's lips to your ears: Sunfire - a quiet box of endless power.

Sunfire TG-IV/400~7 Amp
Carver SD/A-360 CDP
Benchmark DAC-1
Sony SACD/DVD-A
Active bi-amp: Ashly XR-1001 & 2 Rane PEQ-15s
Main: HotRodded AL-IIIs
Sub: Klipsch RT-12d
Center: Sunfire CRS-3c
Surround: Sunfire CRS-3 (x 2)

OconeeOrange wrote:"Gary likes to play it 'loud' as do I. His system begs you turn it up until you die"

RIP WIlliam B. Dibble, 1948-2012. I'll miss you my friend.

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