Sunfire classic tube preamp

Sunfire Home Audio (Stereo) Discussions and Questions
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Snoop65
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Re: Sunfire classic tube preamp

Post by Snoop65 » Thu Mar 22, 2012 10:05 pm

I know what you mean about change. When I first got my JBL's I wasn't used to a soundstage like that. I was used to a more up front 2D type sound. It took a minute to adjust. Now I am soooooooooooo happy! :D
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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kingman
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Re: Sunfire classic tube preamp

Post by kingman » Fri Mar 23, 2012 6:14 am

Welcome to the world of audio....and everybody wonders why I got so much stuff...I like to experiment! :lol:
In reality, it only matters what it sounds like to YOU!!!

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MRHP
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Re: Sunfire classic tube preamp

Post by MRHP » Fri Mar 23, 2012 9:48 am

Im gonna keep in the system for a while and try some more tubes. With the TGPII the sound stage was not real wide but it was by all means deep. The reproduction of sound was like the band was in my room playing. This tube pre just sounds like all the tweeters and midrange were un hooked and its playing full range thru the woofer. I cant really pick up on the sound stage because its so flat sounding.

What color are the caps and where are they at??
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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jjptkd
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Re: Sunfire classic tube preamp

Post by jjptkd » Fri Mar 23, 2012 10:31 am

To be honest, I'm not exactly sure. I've talked with Bill about these tube pre's on a number of occasions and he's told me that there's some main caps that are prone to leakage and that they can even render the board irreparable if not caught in time. Did you buy the one that was on Audiogon? :-k

I've only had the pleasure of owning one tube pre, had it for about a week. I thought it sounded at least as good as the TGP-III I was using at the time, just different. The lack of digital inputs and remote are why I ended up flipping it, same as the C-19. :?
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MRHP
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Re: Sunfire classic tube preamp

Post by MRHP » Fri Mar 23, 2012 10:54 am

Yea I got the one on A-gone that you had a link to. This one has a remote and is in very nice to near mint condition.
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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mbskeam
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Re: Sunfire classic tube preamp

Post by mbskeam » Fri Mar 23, 2012 1:07 pm

viewtopic.php?f=16&t=11328

Image

the yellow and blue are the caps, plus in the link above there are pics of the PS caps, look to see if these are Leakey or bulging
Last edited by mbskeam on Sat Mar 24, 2012 11:00 am, edited 1 time in total.
Mbskeam

SILVER 7's
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2 SVS PB16 SUBS
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CARVER: TFM-75, TFM-45(3), SD/A-490T
SUNFIRE: Tube pre
WTL Amadeus GTA+DV DRT XV-1t
2 sets of ALS'3, set of SILVERS, set of PLATS
AUDIOCONTROL: phase coupled activator
KENWOOD: BASIC M2a (2)

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tinpan
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Re: Sunfire classic tube preamp

Post by tinpan » Sat Mar 24, 2012 7:51 am

Congrats on the SF Pre, I think you will enjoy the hell out of it. I would spend some time listening to it and see if it doesn't become more appealing as you get used to it. I like listening to live music on tube set ups, maybe that will help as you get acclimated to it.

I also found switching speakers around make a huge difference, more so with amps than pre amp. It's not that any of them sound bad, but sometimes you'll hit a combo that just clicks, then you'll know you have it.
Tinpan

HT - Sunfire TG IV, Sunfire Cinema Grand Sig. 400 x 5, Oppo 93, Klipsch LaScala (3), Cornwalls (2), SW-12, Sony 60" LCD

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2 channel - AN Interstage Mono Blocks 300b PSE, Carver C-5 Pre, Altec A4 speakers


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MRHP
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Re: Sunfire classic tube preamp

Post by MRHP » Sat Mar 24, 2012 9:16 am

Ive got some good live music to try out and plenty of speakers. Im thinking the DQ20's are going to be the ticket if Regnar will get my freakin woofers done and sent back. :-({|= :lol:

I unhooked the tube pre and used my 490t as the preamp instead and the sound was quite abit brighter, has anybody done a A/B compare like this? Im just trying to make sure something isnt wrong with it. But I hear what you guys are saying, I just need to get adjusted to it.

Plus a certain forum member that lives in a dog house and calls his master charlie brown is sending me some real nice tubes to try. Thanks Snoop65!
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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Snoop65
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Re: Sunfire classic tube preamp

Post by Snoop65 » Sat Mar 24, 2012 10:13 am

MRHP wrote:Ive got some good live music to try out and plenty of speakers. Im thinking the DQ20's are going to be the ticket if Regnar will get my freakin woofers done and sent back. :-({|= :lol:

I unhooked the tube pre and used my 490t as the preamp instead and the sound was quite abit brighter, has anybody done a A/B compare like this? Im just trying to make sure something isnt wrong with it. But I hear what you guys are saying, I just need to get adjusted to it.

Plus a certain forum member that lives in a dog house and calls his master charlie brown is sending me some real nice tubes to try. Thanks Snoop65!
I have no idea what you're talking about. :^o 8-[ :lol:
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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radioeng2
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Re: Sunfire classic tube preamp

Post by radioeng2 » Sat Mar 24, 2012 11:31 am

mbskeam wrote:viewtopic.php?f=16&t=11328

Image

the yellow and blue are the caps, plus in the link above there are pics of the PS caps, look to see if these are Leakey or bulging
Just to be clear, none of these caps in this picture on the blue PCB are electrolytic caps that are subject to heat and to the typical 7 year life expectancy. This you might change for these for sonic character, but they will not show any bulging and spewing like electrolytics.

Power supply caps (to the left side of the pic, just behind the pexiglass), however, will be a different story! What's visable in the picture don't appear bad, though visible signs aren't always necessary for them to be going south.

Mark
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mbskeam
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Re: Sunfire classic tube preamp

Post by mbskeam » Sat Mar 24, 2012 1:46 pm

viewtopic.php?f=16&t=11328&start=45

look at the pics at the bottom of the thread.
these are the caps that may have issues.

as Mark stated the caps on the main board, really dont have the heat/age issue going against them.
do the tone controls do anything?
Mbskeam

SILVER 7's
Amazing Line Source
2 SVS PB16 SUBS
#1 BLACK BEAUTY's made by the man, the myth, the legend Bob Carver
CARVER: TFM-75, TFM-45(3), SD/A-490T
SUNFIRE: Tube pre
WTL Amadeus GTA+DV DRT XV-1t
2 sets of ALS'3, set of SILVERS, set of PLATS
AUDIOCONTROL: phase coupled activator
KENWOOD: BASIC M2a (2)

“Youth ages, immaturity is outgrown, ignorance can be educated, and drunkenness sobered, but stupid lasts forever.”
― Aristophanes

The only thing I'll feel......will be the RECOIL
Necronomicon Ex-Mortis....... Klaatu Barada Nikkto
"We should seek the greatest value of our action"

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Snoop65
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Re: Sunfire classic tube preamp

Post by Snoop65 » Sat Mar 24, 2012 1:50 pm

Here are some more pics inside the Sunfire pre. Somebody please point out the things to check.
IMG_1747smaller.jpg
IMG_1748smaller.jpg
IMG_1749smaller.jpg
IMG_1752smaller.jpg
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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MRHP
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Re: Sunfire classic tube preamp

Post by MRHP » Sat Mar 24, 2012 9:31 pm

The more I listen to it the better I like it....just like you guys told me :lol: :lol: Some of my problem was simply that the tube pre is sooo quiet you have to crank up the volume alot more than the TGPII. With a few more tube changes today things started getting ALOT better. \:D/ My 12yr old said it sounded like the music was going past us instead of being right in front of us. Maybe his way of saying its more 3D and I would have to agree. Here are a couple pics of the inside:
DSC03689.JPG
DSC03689.JPG (60.84 KiB) Viewed 2060 times
DSC03691.JPG
DSC03691.JPG (61.71 KiB) Viewed 2060 times
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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Snoop65
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Re: Sunfire classic tube preamp

Post by Snoop65 » Sun Mar 25, 2012 8:34 am

Sounds like you are getting adjusted to the big soundstage. :D. I'm glad to hear it is starting to work for you. Also I AM NOT OLD! I'm ONLY 46!!! :lol: :lol: :lol: :lol:
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+Cayin CDT-17a =WOW!!!!!!

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MRHP
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Re: Sunfire classic tube preamp

Post by MRHP » Tue Mar 27, 2012 9:54 am

OK.....I had a pair of F Mod low pass crossovers plugged into the second set of outputs for the subwoofer amp. I know this is not the most efficient way to crossover. Anyway went to unplug the F Mod and BAM soundstage, cymbals, room filling highs!!

Somehow just plugging in the F Mod to the second set of outputs kills the high end of sound coming thru the main speakers.

I feel a little stupid but who would have known? Anyway I have a very nice sounding preamp. \:D/
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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