Carver TFM-35 vs. Carver M-1.5t
SpeedyFE
Posts: 143
Ok, I have had the TFM-35 rocking my SDA 1cs for a while now, I am very very satisfied. Also, it is through a Carver 4000t pre-amp.
Now the TFM-35 is supposed to be 250 into 8ohm. I just bought a Carver M-1.5t which is supposed to be 350 into 8ohm and to be honest, it sucks! It really does not compare to the TFM-35. The TFM-35 has a beautiful, fully separated sound and more power.
Question: Was the Carver M-1.5t even though it was rated higher over-rated? Do I have a bad unit? The sound is even on both channels, so that is not a problem.
Or is the TFM-35 just a superior unit that the M-1.5t cannot even compete with?
Thanks guys.
Now the TFM-35 is supposed to be 250 into 8ohm. I just bought a Carver M-1.5t which is supposed to be 350 into 8ohm and to be honest, it sucks! It really does not compare to the TFM-35. The TFM-35 has a beautiful, fully separated sound and more power.
Question: Was the Carver M-1.5t even though it was rated higher over-rated? Do I have a bad unit? The sound is even on both channels, so that is not a problem.
Or is the TFM-35 just a superior unit that the M-1.5t cannot even compete with?
Thanks guys.
Post edited by SpeedyFE on
Comments
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The M1.5t is an older unit, so it may be time for recapping & a general bench going-over. Also, it is a tube transfer modification unit, so you may not like the sound. I find them to be muddy in the bass (tube mod). they are a helluva powerhouse, however.TNRabbit
NO Polk Audio Equipment :eek:
Sunfire TG-IV
Ashly 1001 Active Crossover
Rane PEQ-15 Parametric Equalizers x 2
Sunfire Cinema Grand Signature Seven
Carver AL-III Speakers
Klipsch RT-12d Subwoofer -
Thank you for the info, So your saying that the M1.5t should definitely out perform the TFM-35 (powerwise)?
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The M1.5t is very conservatively rated. For short periods of time, it will push up to 1200 watts total, up to 750 watts into one channel (provided the total 1200 isn't exceeded). You can pop 15 amp circuits with one of them in good condition!TNRabbit
NO Polk Audio Equipment :eek:
Sunfire TG-IV
Ashly 1001 Active Crossover
Rane PEQ-15 Parametric Equalizers x 2
Sunfire Cinema Grand Signature Seven
Carver AL-III Speakers
Klipsch RT-12d Subwoofer -
So if a TFM-35 is outperforming an M-1.5t then there is definitely something wrong with it?
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Ok, my understanding is that the 1.5t was t-modded to sound like a Mark Levinson, while the tfm's were all t-modded to sound like Bob's own Silver Sevens.
They should sound different, but in a manner of taste rather than outright quality. Both should sound nice. if your 1.5t sounds THAT bad, I am guessing something is not quite right. -
I asked the same question regarding Emotiva XPA-2 (250 watts into 8 ohms with 2 channels driven) and XPA-5 (275 watts into 8 ohms with 2 channels driven). Both are the same price, $799, and the latter gives you more flexibility by allowing up to 5 channels. Yet the reviews and the people here all claim the former sounds a lot better. I presume there are differences underneath, but it would be nice to what they are.MAIN: Polk Lsi9s; Polk PSW505; Lsic (in box); Onkyo SR-875; Parasound 2250; Cambridge Audio 740C; LG BD370
OFFICE: Polk Lsi7; REL T3; HK 3490; CA 840W; Onkyo C-S5VL
BENCHED: CS20; OWM3s -
I've been happy with my 1.5Ts (running it on CTR/ Fronts), mostlikely you got a bad breed. As far as TFMs, haven't had the chance to taste them just yet.....After reading this thread, I might be surfing the neighbors of one.Godspeed,
D0661E
AVR:Pioneer Elite SC-07
Surrounds: RTis
2channel:Rti100 (carver driven
Sub:SVS PB12-Plus/2
Dedicated AMPs:Adcom GFA535, 2xCarver 1.5t, Carver m1.0t
Wsrn:Hitachi ultra vision LCD60, 32XBR400
PowerConditioner: MonsterC HTS5100
PS3, Toshiba HD A2, etc: SonySACD/ Panasonic gears DIVX.
MR3LIGION: Polkaudio; GSXR; E46; Reeftank;
Odyclub; Xsimulator; Sony; Zune; Canon -
Something sounds like it is amiss with the M1.5t. I have A/B'd a TFM-55 and two mono'd TFM-55's up against one M1.5t and the M1.5t came out the clear winner in sound, available power and ability to control the woofers.
However, this A/B was done on an 8ohm speaker. Your speakers are 6 ohm speakers which will make the amps perform a little differently. Another thing to keep in mind is that your speakers are 90db efficient, while mine have a slightly higher efficiency. This will also alter the end result.
Oh, both of the amps are modified to sound like a tube amp FYI.~ 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. ~ -
Tom, I'm pretty sure the TFM series were NOT t-modded.TNRabbit
NO Polk Audio Equipment :eek:
Sunfire TG-IV
Ashly 1001 Active Crossover
Rane PEQ-15 Parametric Equalizers x 2
Sunfire Cinema Grand Signature Seven
Carver AL-III Speakers
Klipsch RT-12d Subwoofer -
The entire lineup was emulated to sound like the Silver Sevens. A couple of exceptions like the C and CB versions along with some of the lower lineup weren't though IIRC.~ 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. ~
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Everything I've read on the Carver forum states the TFMs are T modded to emulate the Silver 7s. The TFMx's aren't. You should know thatTom, I'm pretty sure the TFM series were NOT t-modded.
...or maybe you do and I'm wrong
Combo rig:
Onkyo NR1007 pre-pro, Carver TFM 45(fronts), Carver TFM 35 (surrounds)
SDA 1C, CS400i, SDA 2B
PB13Ultra RO
BW Silvers
Oppo BDP-83SE -
What do you mean by t-modded? Is this a significant upgrade or merely a matter of preference?Zu Soul Supreme
Coincident Frankenstein mkIII
Esoteric K-07 -
t = tubelike, modded to sound like the Silver 7 monos. Most of the TFMs were also voiced similarly. The TFMx amps were not. It's a preference, not an upgrade. Others know far more about this than I, but that's the gist.What do you mean by t-modded? Is this a significant upgrade or merely a matter of preference?
Combo rig:
Onkyo NR1007 pre-pro, Carver TFM 45(fronts), Carver TFM 35 (surrounds)
SDA 1C, CS400i, SDA 2B
PB13Ultra RO
BW Silvers
Oppo BDP-83SE -
Ron Temple wrote: »t = tubelike, modded to sound like the Silver 7 monos. Most of the TFMs were also voiced similarly. The TFMx amps were not. It's a preference, not an upgrade. Others know far more about this than I, but that's the gist.
Actually, the 't' in the model number refers to 'transfer function mod' or 't-mod' for short; not 'tube'. The Carver model 1.0t 'was' modded after a tube amp, the Conrad Johnson Premier 5 mono blocks, which was the subject of the great Bob Carver Sterophile challenge (where Bob bet he could copy any high end amp within 49 hours in a hotel room near Stereophile's then Albuquerque HQ. Bob won the bet).
He then modded a Solid State Class A amp, the Mark Levinson ML-2, which became the 1.5t.
Later, he created the Silver Seven tube mono-blocks and modded them. This amp became the 4.0t. Later, the 4.0t got a facelift and became the internally identical but cosmetically different, TFM-42 and TFM-45 (one has analog meters, the other level lights on the front).
Everyone has their preferences on which carver amp sounds best (some don't like any of them). I personally enjoyed them all and currently own a 1.5t. -
Oh, also regarding my assertions above, much of this was covered in The Audio Critic, issue 14. 1989/90
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Tom, I'm pretty sure the TFM series were NOT t-modded.
Interesting that they would be named the "Transfer Function Modified" series (TFM?) if they were not transfer function modified. They all were in fact. Some of the smaller power amps were not magnetic field designs due to cost constraints at those price points, so they are conventional power supply amps. TFM-6 and maybe even 15 were conventional amp designs. The 60wpc job and the 100wpc.
And the Levinson was a solid-state amp.
I would rather have a perfect functioning 1.5t over the TFM-35 amp. -
George Grand wrote: »I would rather have a perfect functioning 1.5t over the TFM-35 amp.
agree
engtazengtaz
I love how music can brighten up a bad day. -
How does a PM1.5T (I know it's a pro amp) differs from M1.5T soncially? I bought one a while ago for use as a sub amp in mind. Since then, I have went different route and kept it unused. It sounds great without any problem though.
What would you guys prefer? PM1.5T or M1.5T for pairing with polk RTi12s or LSi15s?
ThanksTrying out Different Audio Cables is a Religious Affair. You don't discuss it with anyone. :redface::biggrin: -
Yeah! I kinda know that it's not a good idea to use pro amp for home audio. It's not like it doesn't work, the home audio AVR doesn't put out enough juice (volts really) to the pro audio input levels and the impedance are different. I don't have pro speakers and I don't want to hook up PM1.5T with any home speakers yet. I did test with the subs and found the amp is working fine.
So, I wonder would it worth it to mess the PM1.5T with my Polk speakers or not. I want to know the sonic signature of the PM1.5T series since there seems to have a few who owns the carver and might have any idea. ThanksTrying out Different Audio Cables is a Religious Affair. You don't discuss it with anyone. :redface::biggrin: -
Why don't you just try it and see for yourself?TNRabbit
NO Polk Audio Equipment :eek:
Sunfire TG-IV
Ashly 1001 Active Crossover
Rane PEQ-15 Parametric Equalizers x 2
Sunfire Cinema Grand Signature Seven
Carver AL-III Speakers
Klipsch RT-12d Subwoofer -
^^^^^^^^^^^^^^^^^what he said^^^^^^^^^^^^^^^^
but FWIW,, most folks on the forum will advise you against using "pro" amplifiers for home audio applications. YMMV,,,and who cares what anyone else thinks,, it's your system,,good luck,,enjoy.
JC approves....he told me so. (F-1 nut) -
Use the search feature and you'll find all these Carver topics have been beat to death and into the ground over the last ten years or so.
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I used Carver PM-300's with my LSI9's and they sounded great. Retired them for an M-500t and they sounded even better. I don't think there is anything wrong with using the PM series amps for home use, but you may find connection issues as the PM series only have screw, balanced or 1/4" inputs and outputs. Most also have 70v speaker outputs which is nice if you have really long wire runs. The best thing about them is they are built like tanks. I still use them if I want a travel rig.




