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running together

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Scatter

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Joined: Wed Mar 03, 2010 6:12 pm

Post Wed Mar 03, 2010 6:16 pm

running together

How can I bridge my TFM 15CB with my TFM 25? ](*,)
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BillD

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(pair of) SILVER-7 TUBE AMPs

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Post Wed Mar 03, 2010 7:16 pm

Re: running together

You probably need to tell us more about what you're trying to do. The simple answer is "You can't". By that, I mean, if you want to combine one channel of a 15 power with one channel of a 25 to get more power, like the sum of the two.
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
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Jag_97470

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Location: Oregon

Post Wed Mar 03, 2010 8:18 pm

Re: running together

I think he means Pig-tail the two, but not sure. Yes, we need more info. please.
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BillD

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(pair of) SILVER-7 TUBE AMPs

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Post Wed Mar 03, 2010 8:54 pm

Re: running together

Isn't it the CB that has a pass through so you can daisy-chain them?
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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Jag_97470

SILVER-7 TUBE AMP

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Joined: Fri Sep 19, 2008 12:06 am

Location: Oregon

Post Wed Mar 03, 2010 11:23 pm

Re: running together

BillD wrote:Isn't it the CB that has a pass through so you can daisy-chain them?


Yes, that's what I meant to say > daisy chain, Yes you can daisy chain the CB but not sure about the 25?
Maybe he will chime in and let us know what he trying to accomplish?
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Scatter

Newbie

Posts: 2

Joined: Wed Mar 03, 2010 6:12 pm

Post Thu Mar 04, 2010 4:40 pm

Re: running together

I'm sorry I am new at this I want to be able to use them both at the same time for more power?
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thuffman03

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Post Thu Mar 04, 2010 4:54 pm

Re: running together

So what you are saying you want to do is to have both amps hooked up to one set of speakers?
Some cool Carver stuff!
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treitz3

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"Julian"
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Post Thu Mar 04, 2010 5:14 pm

Re: running together

You can not daisy chain a TFM-15CB to a TFM-25.

Oh, my manners. Welcome to the forum.
In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

The best way to enjoy digital music reproduction is to never listen to a good analogue reproduction.

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gdb

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Location: Central Maryland

Post Thu Mar 04, 2010 6:29 pm

Re: running together

I'd think that what you want to do is something called bi-amp. AFAIK, if the gain is close on both amps,or if they have a gain "pot", it can be done. Welcome and just wait....the fine folks here will have you buying more, bigger and better amps in no time at all!! $cha ching$ :lol:
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Jag_97470

SILVER-7 TUBE AMP

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Joined: Fri Sep 19, 2008 12:06 am

Location: Oregon

Post Thu Mar 04, 2010 10:06 pm

Re: running together

Scatter wrote:I'm sorry I am new at this I want to be able to use them both at the same time for more power?


I think what you are asking is; If my TFM-15CB is 100wpc and my TFM-25 is 225wpc, putting the two together should yield 325wpc? Sorry it doesn't work that way. You could bi-amp using one amp say to the right speaker and the other amp to the left speaker, but as you can see that would send 100watts to one speaker and 225watts to the other. Like mentioned before if you have gain pot's you could probably adjust the output to match, but why? The most you could gain would be from the TFM-15CB at 100watts. You really need two identical amps to bi-amp only using one channel to pull reserve power from the other channel, or bridge each amp for more horsepower. You are better off just using the TFM-25 running both speakers and save the TFM-15CB for running other speakers like a center or surrounds in a Home Theater set up. What speakers are you running?? Tell us a little more about your set-up and what components you have. Better yet, post some pictures, we love seeing pictures!! Thanks for posting your question > Great question! and I hope we offering some help for you?
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elgrau

SILVER-7 TUBE AMP

Posts: 2893

Joined: Wed May 31, 2006 9:33 pm

Post Fri Mar 05, 2010 1:43 am

Re: running together

Am I missing something? Just bi-amp using the TFM-15CB @ 100wpc for the tweeters and the TFM-25 @ 225wpc for the woofers. Someone posted the sound/power advantages (and particulars) of this......you will need to slightly modify the speakers and crossover....see bi-amp thread for this (not sure if it was posted here or over there...probably both).

here 'tis (The benefits of bi-amping: not quite magic, but close - just do it - here's HOW):
http://www.thecarversite.com/yetanotherforum/default.aspx?g=posts&t=1022

"Bi-amping is a technique which uses one amplifier for the low frequencies, and another for mid
and high frequencies. The choice of crossover frequency is not too critical, provided that the
amplifier powers are properly balanced to achieve the maximum benefit, and the drivers used are
operating well within their frequency and power limits........"
Family room: 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.
Living room: AudioQuest Black Mamba 8M IC's 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 8" woofers and eight 1" dome tweeters symm. arranged around the surface.
SS system: CX-995V DVD to AV-705x 5 channel amp (center/rears) & M1.0t mk-II opt2(fronts).
Garage: TLM-3600 CDP to MXR150 Receiver (pre) to TFM-42 to EPI 400 speakers.
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TNRabbit

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(pair of) SILVER-7 TUBE AMPs

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Location: TN Native Languishing in VA

Post Fri Mar 05, 2010 4:46 am

Re: running together

Scatter,

Let us know about the rest of your system & what you would like to do in detail--we can give you better advice. Elgrau is correct in the above post in that bi-amping sounds like what you are trying to do. Bi-amping requires speakers capable of doing so (not all are).
TNRabbit
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elgrau

SILVER-7 TUBE AMP

Posts: 2893

Joined: Wed May 31, 2006 9:33 pm

Post Fri Mar 05, 2010 12:22 pm

Re: running together

I'd think that the only speakers not capable of bi-amping would be models like Bose that are uni-driver (and therefore no way to utilize two signals). Any speaker with at least two driver types/freq bands could be bi-amped. Read the posted paper on this, but I'd think it a simple matter to pull the back off your speakers and divide out the signal path to your lo drivers and hi/mid drivers. A "poor man's" (not recommended) 1st cut would be to simply connect the 25 to your woofers (and rely on their natural rolloff) and use the existing x-over to protect/filter your mid's and hi's from being overpowered by the 15. Basically, you need a lo pass filter for the woofers and a hi pass filter for the mids/tweets; this all covered in the paper. And obviously you need to feed your same preamp signal to both amps. - Ed
Family room: 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.
Living room: AudioQuest Black Mamba 8M IC's 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 8" woofers and eight 1" dome tweeters symm. arranged around the surface.
SS system: CX-995V DVD to AV-705x 5 channel amp (center/rears) & M1.0t mk-II opt2(fronts).
Garage: TLM-3600 CDP to MXR150 Receiver (pre) to TFM-42 to EPI 400 speakers.

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