Comments on: Grant Fidelity W-30GT Integrated amplifier

By: Francis Jansz

Francis Jansz — Sun, 04 Jan 2015 05:54:25 +0000

I am still waiting for a Solution To Change my Tubes From EL34 to 8 X KT88 or KT90, and Change The Input Tubes From 6NI to 12 AX7, any Help will be gratefully Considered,

Any Idea What Volts The Transformers PUT OUT for The Tubes on The MUSIC ANGEL XDSE M9 MK500 111.

By: Francis Jansz

Francis Jansz — Fri, 12 Dec 2014 06:34:10 +0000

I just Purchased a Music Angel Integrated XDSE M9 with EL:34 X8 and 6N! X5 Tubes. I am still waiting for The Delivery, And I just spoke to to my Wireless Technician, who Advised me to Change The EL 34 and Replace them with KT88 Tubes and Change The 6N1X5 Tubes to he has not mentioned it as yet and Also told me That he may also need to Change the Caps & Bases for The Tubes.. He May have Mentioned to 12AX7 Tubes . But I am not Sure & Also stated that he may have to Check The Transformer and May have to Change it but he was not Sure till I get The Delivery of The Amp so that he can Plug it to his OSCILLOSCOPE
and Check it out Properly.. I need your input As Should I Change The Valves. or are The Good Valves for this AMP. ( Please Give me your advise on My new Project) before I get any Alterations attended to.)
Kind Regard’s
Francis Jansz

By: Jake Montzingo

Jake Montzingo — Wed, 11 Jan 2012 05:51:43 +0000

Thanks for the kind words. I did compare the amps in their “stock” forms as you mentioned, but you are correct that stock for the S300MK uses Treasure tubes. Since the S300MK shipped stock with Treasure tubes from Grant Fidelity, I felt it only fair to compare them the way they ship. I could have compared them with both Shuguang standard and Treasure tubes, but I also wanted to be fair to GF as that is how they were shipping them standard. I did not roll any tubes for the review (again to be fair to GF), but I definitely rolled some tubes on my own time. Currently what I’ve tried in the amp is: Shuguang standard EL34, Shuguang standard KT88, 1985 Shuguang standard 6N1, Gold Lion KT77, Gold Lion 6922, SED 6L6GC, 1968 Voskhod 6N1P-EV, 1979 Voskhod 6N1P, 1972 Voskhod 6N1P-EV, 1984 CCCP 6N23P-EV, 1972 Orzep 6N1P, 1981’s Voskhod 6N23P, and Sovtek 6N1P. I also rolled in a pair of 1989 6N3P power tubes, but they went cherry before I could test them. Bottom line is the W30 is great for rolling tubes as it can accept many different tubes which each have their own sound/flavor.

By: Mike in SC

Mike in SC — Tue, 10 Jan 2012 02:56:59 +0000

Nice review, Jake. I am curious about your comparison between the W-30 and the Shuguang Treasure S300MK. You write that you listened to their stock tubes, but aren’t the Shuguang “Treasure” tubes a better stock tube than the stock Shuguang tubes?

I suppose you would have mentioned it but did you roll anything other kind of KT88, say the Psvane KT88 or an NOS EL34 tube?