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Author Topic: 12AX7A & 12AU7A recommendations  (Read 6659 times)

Offline rgpit

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12AX7A & 12AU7A recommendations
« on: March 16, 2017, 09:41:26 AM »
Lately I've been thinking of doing a little tube rolling.

I've got a PrimaLuna Dialog 2 integrated amp. It has 12AX7's and 12AU7's in the pre-amp section and there are KT120's in the power-amp section.

I'm hoping for recommendations from the forum folks for the 12AX7's and 12AU7's.

Thanks,
Ron
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bmwr75

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Re: 12AX7A & 12AU7A recommendations
« Reply #1 on: March 16, 2017, 10:07:07 AM »
Hello Ron,

I have the exact same amp.  Am running "Mullard CV4003 platinum grade, paid $40 each plus shipping from Upscale Audio" in the 12AU7 locations and "Telefunken select red tips" in the 12AX7 locations.  Purchased the Telefunkens on eBay for about $57 each back in 2010.  The AX7s are smooth plates IIRC.  I tried a bunch of AX7s and always came back to these Telefunkens.

Regards,
Scott
« Last Edit: March 16, 2017, 10:11:44 AM by bmwr75 »
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Offline non-prophet

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Re: 12AX7A & 12AU7A recommendations
« Reply #2 on: March 16, 2017, 10:27:22 AM »
Upscale audio Mullard 6201 gold pin.
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Offline non-prophet

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Re: 12AX7A & 12AU7A recommendations
« Reply #3 on: March 16, 2017, 10:59:28 AM »
Before someone corrects me, i will correct myself.  The 6201 is a 12at7.  If it will work in your integrated, give these a listen. I had amazing results in my amp.
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Duntech PCL-400 (Black Knight), KEF 105/3, Snell Type b
Aloia PST 11.1, Terra Song ss-1, Luxman c-1000, Melos MA333
Llano Phoenix CA-300, White Audio Labs A100, (2) Luxman M4000
McIntosh MA230

Offline scorpio333

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Re: 12AX7A & 12AU7A recommendations
« Reply #4 on: March 16, 2017, 11:58:22 AM »
I have a Chinese Yaquin tube pre that takes 12ax7 and 12au7. Few years ago I found a quad of Telefunken 12ax7's, two went in the tube amp, two in the pre. After trying a few others, those won out. As for the 12au7's I bought a few cheap pairs to roll around. i settled on a pair of Sylvania 12AU7A. I tried Raytheon black plates, RCA clear tops and Westinghouse something or other. One of these days I'd like play around with a few other 12au7's.
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