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  #1  
Old 11-12-2016, 05:56 PM
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Default KT150 tubes

I am looking at new tubes for my PrimaLuna HP integrated amp and am considering KT150's. If you have experience with this tube, what are your thoughts?
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Old 03-26-2017, 10:11 PM
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Default Kt150

I have them in my Jolida JD801BRC and I think they are amazing. I replaced a set of JJ KT-88s and the stock 6550s with the KT150s. I think they sound really good. To me the bottom end seems to be a lot tighter and feels like it has more drive behind it. Not saying they give more power, that is a completely different debate, they just seem to add that extra little punch that was missing. The midrange and highs are very smooth. I cannot complain.
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Old 03-28-2018, 01:17 PM
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I, too, have a PrimaLuna HP with El34 tubes and I'm considering either KT120s or KT150s. The EL34s have quite a lush midrange--would I sacrifice that for more "punch" with those other tubes? I mainly listen to classical music if that matters.
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Old 03-28-2018, 02:24 PM
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Quote:
Originally Posted by Toccata View Post
I, too, have a PrimaLuna HP with El34 tubes and I'm considering either KT120s or KT150s. The EL34s have quite a lush midrange--would I sacrifice that for more "punch" with those other tubes? I mainly listen to classical music if that matters.
Toccata -- You know more about that integrated than I do, but the extra 26 watts from the KT150 compatible unit probably wouldn't upset the midrange as like if one was to change the front two gain tubes which offer the most change followed by the driver tubes.

I see you've been a member of AA for awhile, but there are KT150's for sale in the marketplace for subscribers ($25 membership). Probably recoup that in 1 tube buy.

These are the same tubes Kevin gets from New Sensor (Tung Sol KT150's). Factory tested/labeled and with 6 month warranty from date of purchase.

Anyway, just saying.

Best Sir,

Bob
__________________
Amps: Dan D'Agostino Progression Monos on 20A dedicated breakers.
Preamp: Dan D'Agostino Progression Preamp.
Digital Source: dCS Paganini 4 stack (Transport/DAC/Clock/Upsampler).
Analogue Preamp: VAC Renaissance SE Phono stage with XLR Output Option & with Nordost Tyr 2 P/C and Tyr 2 XLR's.
Analogue Sources: SME 20/2 w/SME V arm & Nordost Valhalla TA cable, Palo Santos Presentation Cartridge & Akai GX-400D Reel-to-Reel w/relapped heads by JRF Magnetic Sciences. Akai RC-17 cabled remote.
Vibration Control: TT on HRS M3X 1921 shelf, Stillpoint Ultra SS under dCS Transport, Stillpoint Ultra-Mini's under dCS 3 Stack. HRS NA100's under Ansuz D8 Power Distribution Bar.
Speakers: Wilson Audio Alexia in Argento Silver/Black grills.
Power Cables: 3 each 2.5M Nordost Odin Supreme Reference on amps & preamp. Nordost Valhalla V1 on dCS Transport.
Power Distribution Bar: Ansuz Mainz Diamond 8(D8) fed by Ansuz Diamond Power Cable.
Power Outlets:Furutech GTX-D NCF (R) duplex outlet, GTX Wall Plate & Duplex Cover (x2).
Speaker Cables: 3M Nordost Odin Supreme Reference with 4 Nordost Sort Lifts.
Signal Cables: Nordost Tyr 2 XLR's 2M on dCS Paganini and Mono amps. Nordost Valhalla 2's 110 ohm Digital AES/EBU on dCS internal connections and Crystal Cable Firewire 1394 cables on dCS.
Clock Cables: 3 each 75 ohm 1.25M Nordost Valhalla BNC/BNC Digital
Headphones: Selling - 6M Cardas Clear HP cables. Vintage Koss Pro IV AA.
RCM: Audio Desk PRO
Tube Test Gear: Mint late '60's/calibrated Heathkit TT-1A & current SOTA MaxiMatcher Power and Preamp tube test sets.
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  #5  
Old 03-29-2018, 12:36 PM
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You certainly do push for people to subscribe. I didn't post in order to get a sales pitch: I wanted opinions on the tonal differences between those tubes.

Last edited by Toccata; 03-29-2018 at 12:43 PM.
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Old 03-29-2018, 06:02 PM
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What is wrong with encouraging members to support this cool site?
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Old 03-29-2018, 06:33 PM
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Originally Posted by chubba View Post
what is wrong with encouraging members to support this cool site?


+100
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Old 03-29-2018, 07:39 PM
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Quote:
Originally Posted by Toccata View Post
I wanted opinions on the tonal differences between those tubes.
Let's take your latter first -- I did mention that going to the larger power tubes would probably not be the best way to keep your luscious midrange -- you'd in all likelihood gain more bottom end and power with those tubes; but, you already have the sweetest midrange power tubes in your amps. The stock EL34's.

If you want just a tad bit more but keep the midrange KT77's would be the ticket IMO and not the Tung Sols.

Additionally, one step further, PrimaLuna suggests changing out the front two gain tubes (12AU7's). YMMV.

That's all. No harm, no foul (intended).

Quote:
Originally Posted by Toccata View Post
You certainly do push for people to subscribe. I didn't post in order to get a sales pitch:
Now onto the pre comment. You make it sound like I'm a beneficiary of a subscriber enrollment drive -- the more I muster from member to subscribership, the fatter my wallet. Far from it (I get zero BTW; like any other encourager).

I only mentioned it for awareness and also to support the site in which you apparently have been happy to be apart of. Whether you elect to become a subscriber after 6 years is totally up to you, but you need not be snobbish and rude about my attempt to casually bring it to your attention.

You'd be surprised how much Ivan spends (and Richard's time) on this site for the software, malware, phishing & other types of security related software to keep the site secure for all of us. Safe, reliable and a joy to spend time on and not having to be worried of clicking a link and the low life's & deviants now have you in their grip; making your personal & financial day or days pure hell. You'd be surprised to know how many daily hacks the expensive security & their due diligence thwarts 24x7.

So, I'll be man enough and say I apologize; but, this site doesn't run 24x7 on autopilot.

Best Sir,

Bib
__________________
Amps: Dan D'Agostino Progression Monos on 20A dedicated breakers.
Preamp: Dan D'Agostino Progression Preamp.
Digital Source: dCS Paganini 4 stack (Transport/DAC/Clock/Upsampler).
Analogue Preamp: VAC Renaissance SE Phono stage with XLR Output Option & with Nordost Tyr 2 P/C and Tyr 2 XLR's.
Analogue Sources: SME 20/2 w/SME V arm & Nordost Valhalla TA cable, Palo Santos Presentation Cartridge & Akai GX-400D Reel-to-Reel w/relapped heads by JRF Magnetic Sciences. Akai RC-17 cabled remote.
Vibration Control: TT on HRS M3X 1921 shelf, Stillpoint Ultra SS under dCS Transport, Stillpoint Ultra-Mini's under dCS 3 Stack. HRS NA100's under Ansuz D8 Power Distribution Bar.
Speakers: Wilson Audio Alexia in Argento Silver/Black grills.
Power Cables: 3 each 2.5M Nordost Odin Supreme Reference on amps & preamp. Nordost Valhalla V1 on dCS Transport.
Power Distribution Bar: Ansuz Mainz Diamond 8(D8) fed by Ansuz Diamond Power Cable.
Power Outlets:Furutech GTX-D NCF (R) duplex outlet, GTX Wall Plate & Duplex Cover (x2).
Speaker Cables: 3M Nordost Odin Supreme Reference with 4 Nordost Sort Lifts.
Signal Cables: Nordost Tyr 2 XLR's 2M on dCS Paganini and Mono amps. Nordost Valhalla 2's 110 ohm Digital AES/EBU on dCS internal connections and Crystal Cable Firewire 1394 cables on dCS.
Clock Cables: 3 each 75 ohm 1.25M Nordost Valhalla BNC/BNC Digital
Headphones: Selling - 6M Cardas Clear HP cables. Vintage Koss Pro IV AA.
RCM: Audio Desk PRO
Tube Test Gear: Mint late '60's/calibrated Heathkit TT-1A & current SOTA MaxiMatcher Power and Preamp tube test sets.

Last edited by vintage_tube; 03-29-2018 at 08:00 PM.
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  #9  
Old 03-29-2018, 07:56 PM
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I have the Dialogue Premium which is the baby brother of the HP. I use the KT 120s with my gain tubes rolled to Brimar CV 4003. Sounds spectacular. And yes, if you feel like you get any benefit from this forum should become a subscriber. Just sayin’.
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  #10  
Old 03-29-2018, 08:34 PM
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Quote:
Originally Posted by vintage_tube View Post
Now onto the pre comment. You make it sound like I'm a beneficiary of a subscriber enrollment drive -- the more I muster from member to subscribership, the fatter my wallet. Far from it (I get zero BTW; like any other encourager).

I only mentioned it for awareness and also to support the site in which you apparently have been happy to be apart of. Whether you elect to become a subscriber after 6 years is totally up to you, but you need not be snobbish and rude about my attempt to casually bring it to your attention.

You'd be surprised how much Ivan spends (and Richard's time) on this site for the software, malware, phishing & other types of security related software to keep the site secure for all of us. Safe, reliable and a joy to spend time on and not having to be worried of clicking a link and the low life's & deviants now have you in their grip; making your personal & financial day or days pure hell. You'd be surprised to know how many daily hacks the expensive security & their due diligence thwarts 24x7.

So, I'll be man enough and say I apologize; but, this site doesn't run 24x7 on autopilot[/B].
Bob.......So true.
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