FAQ  •  Register   •  Gallery •  Login

It is currently Thu Jul 31, 2014 12:22 am

Cherry 180's to Cherry 260's

<<

BrianT

User avatar

Pair of Silver Sevens

Posts: 1363

Joined: Sat Oct 11, 2008 4:51 pm

Location: Ottawa, Canada

Post Sun Apr 10, 2011 7:59 am

Cherry 180's to Cherry 260's

As a few of you guys know, I am a luck guy and own a set of Bob’s Cherry 180’s, now Cherry 260’s

Well I thought it was about time for a tube change, and I had heard a lot of good things about the new KT-120 tube’s I thought I would try them.

So at Carverfest 10 I asked Bob if the tube would work OK in the Cherry’s He said “O” yes, the transforms are powerful to run them at 80% capacity.
So that would bring the power output to 260 watts.
To get the most out of the tubes the Power and Output Transformer’s would have to be redesigned and I am working on that at the moment hence the new set of Black Beauties he just sold on Ebay.

So thanks to a forum member, I was able to get a fair price on a set of 12 KT-120 tubes. So in early January I ordered 12, guess what they where on back order. Well finally on Friday 25 March I received the Tubes.
I installed the tubes on Saturday 26th and never turned the amps off for 14 days, to burn the new tubes in, so after the tubes had over 300 hrs on them
I thought it was time to give them a listen. So I spent a day playing.

1st album (vinyl) Pink Floyd Dark Side of The Moon. Well it sounded like shit.

No bass, all vocals very muddy, no sparkle in the highs. The sound stage was very minimal.

Time to change the controller tubes. So I removed a Telefunken 12AT7 and a Siemens 12AX7 both 1960 vintage tubes, supplied by Bob, and replaced them with Pvane Reference Tubes from Grant Fidelity. (I ordered grade A).

Guess what, the bass showed up it was deep and not boomey, and the highs started to sparkle. The low vocals where still a bit muddy buy very improved the mid vocals where crisp and clear and the sound stage opened up.

Now time to try some female focal, Diana Krall. So out came
The Look Of Love (vinyl)

Diana’s voice was open, airy, crisp and clear with just the right amount of sibilance on S’Wonderful. No hint of sibilance on the other tracks.
Piano and other instrument’s sounded very good, fast, precise and that live felling was back in my living room.

Dire Straits (vinyl)

Romeo & Juliet, Telegraph Road and Private Investigation.

All sounded great to me, crisp vocals, airy guitar with room filling sound, sound stage, placement and depth sounded very good to me.

I reinstalled the Telefunken 12AT7 and Siemens 12AX7 controller tubes and played Romeo & Juliet what a bad move, sound stage had collapsed
everything a little muddy like covering my head with a paper bag.
Removed the Telefunken 12AT7 and Siemens 12AX7 and went back to the Psvane Tubes the room was alive again. It looks like the Psvane Tubes
are a better match to the KT-120’s

If anybody is in the Ottawa, Canada area please drop by I would love to try this again with somebody who has a better set of ears.
I say SET of ears as I am 100% deaf in my right ear, and that messes up sound stage and depth for me.

What tube was better in my system, that’s hard to say? The KT-120’s
Have a lot more power, but have a little less bass.
The KT-88z where a little more musical, better bass but less power, for me I think it’s the KT-88z

I am going to give myself a couple of months with this setup and switch back to my Shuguang Treasure KT-88z tubes with the
Psvane controller tubes, that could be interesting.

Comment. The KT-120's are a good sounding tube, considering that they cost me exactly 1/3 the cost of the Shuguang Treasure KT-88z tubes

Test Equipment:

Sunfire Classic Vacuum Tube Control Centre
Set of Cherry 180/260 amp’s
VPI Classic Turntable
Shelter 901 Cartridge
B&W 802d Speakers

Brian
Attachments
IMG_9023.JPG
IMG_9023.JPG (136.51 KiB) Viewed 1049 times
Last edited by BrianT on Sun Apr 10, 2011 9:08 am, edited 1 time in total.
VPI Classic Turntable (blk)
Transfiguration Phoenix Cartridge
Sunfire Vacuum Tube Control Centre. C/W Mod'ed Phono Stage
Carver Silver 7's Tube Amps
Raysonic CD-168 CDP (silver)
Carver TX11.
B&W 802D's Rosenut
<<

treitz3

User avatar

"Julian"
"Julian"

Posts: 7746

Joined: Mon Oct 16, 2006 5:39 pm

Location: The tube lair in Charlotte, NC

Post Sun Apr 10, 2011 8:53 am

Re: Cherry 180's to Cherry 260's

Nice review, Brian. Not too bad for a cat with your limited hearing abilities! =D>
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.

Robert R. - "Did you see my North Korea analogy? I should have named it Carversite.kim"
<<

nooshinjohn

SILVER-7t

Posts: 1702

Joined: Fri Jan 30, 2009 8:54 pm

Post Sun Apr 10, 2011 9:03 am

Re: Cherry 180's to Cherry 260's

Makes me wonder if I should have stayed with the KT-88's ](*,) ... Sorry that they took so long to get to you my friend. The back-order took a month to get through and I was not as good at following up with them as I should have been, and that added a bit more time. Bottom line is that I dropped the ball on that one and I feel a bit like a horse's ass for it.

Please accept my appologies.

John
Carver Statement Reference Monoblocks!!!Sunfire Signature TGA 7401, Pioneer SC-37 Surround Receiver, Sunfire Classic Vacuum Tube Preamp with Phono Stage, Magnepan MG-20's(main) Polk Audio RM 7500's(surround) Polk Audio CSi-a6 (center) Yamaha PX-3 Turntable, Pioneer Elite PD-DJ9 SACD/CD Player, Sony BDPs-350 BLUray player, LG 42lg50 1080p HDTV, Klipsch Synergy SUB-10 powered subwoofer.[/size]
<<

BrianT

User avatar

Pair of Silver Sevens

Posts: 1363

Joined: Sat Oct 11, 2008 4:51 pm

Location: Ottawa, Canada

Post Sun Apr 10, 2011 9:33 am

Re: Cherry 180's to Cherry 260's

nooshinjohn wrote:Makes me wonder if I should have stayed with the KT-88's ](*,)



Hey John.

I think you made a good choice, going with the KT-120's they are a fine tube. You have to remember that the Shuguang Treasure KT-88z cost
3 times the price of the KT-120's.

No problem with the delay in getting them i was in no rush. Thanks for arranging them.

Brian.
VPI Classic Turntable (blk)
Transfiguration Phoenix Cartridge
Sunfire Vacuum Tube Control Centre. C/W Mod'ed Phono Stage
Carver Silver 7's Tube Amps
Raysonic CD-168 CDP (silver)
Carver TX11.
B&W 802D's Rosenut
<<

engtaz

User avatar

"TAZ"

Posts: 5188

Joined: Sat Jun 30, 2007 1:43 pm

Location: Tampa, FL

Post Sun Apr 10, 2011 12:17 pm

Re: Cherry 180's to Cherry 260's

Great review Brian. I appreciate you taking the time to post your thoughts. Pat needs to give a review also. She's too quite on the forum. If you like her review, take her shopping. She does great shopping reviews. :lol:
engtaz


Carver M4.0T in front channels to Caver AL VI's in SACD & 2 Channel setup
C 16, PT 2400, Slim Device, Carver TX-8, 490T and Rega TT w Grado Gold cart in the 2 channel setup
Bogen SRB20 is computer amp
Carver PM-350 donated for youth church use

Return to Carver Tubes

Who is online

Users browsing this forum: No registered users and 2 guests

cron
Powered by phpBB © 2011 phpBB Group.