Agriculturist,
Congrats on your Vac purchase! I have some matched quad GLs and I prefer the Shuguang KT88Z from Grant, much more musical, better decay and lifelike imaging.
I'm loving my Vac 160I and will upgrade to the SE at some point... |
Agriculturist,
The KT88Z Black Treasures are what I'm using now and I've noticed the best sound at the 340 hour mark. They don't have the top end extension of the GLs but they are superior in every other area.
I almost bought the Psvane TII but was warned by others not to buy them based on reliability issues and hear they a tad better the BTs.
Happy Listening! |
The Vac 160i is a great amp and I'll upgrade mine to the SE at some point. |
Guys,
One of my BT KT88Z went bad after 4 months of use; noticed a popping in one channel and then noted that that tube wouldn't bias. Took them all out and put the stock tubes back in.
No issues at all with the GL but no more Treasures for me unless their QC improve... |
Knghifi,
The tubes worked flawlessly for 4 months and noticed the static and that one of the leds wasn't blinking with the beat. I removed all of the tube immediately before failure could occur.
Their are a few reputable dealers that have not had a GL KT88 fail but I sold mine months ago when I bought the Shuguang KT88Zs. Wished I would have kept them... |
Agriculturist,
Which 12AX7 tubes are you using in the phono section V01/V02? I'm currently using Tung-Sol 12AX7 reissue because they are so quiet and very clean sounding. |
Agriculturist,
I'll look into some NOS varieties as well. Try some reissue GL or Tung-Sol and you'll be amazed at the level of improvement at a low cost. |
If you're wanting a neutral and very quiet tube, the Sovtek 12AX7 LPS is better than Psvane TII and the reissue Tung-Sol at $30 a pair.
http://www.mcshanedesign.net/ |
Still doing my research but Pass and Hegel are a few I'm considering. It's going to be hard moving away from the Vac but more power is needed... |
Agriculturist,
Those are Herbies SuperSonic Stabilizers that were used on top of my CD Player but moved them to the Vac after reading a review on the Vac PHI 200. I have not heard any improvements probably because they're too light and thought they would look good there. |
I don't believe 6550 can be used in the Vac and the AH fuses are the real deal, I have them in all of my components and yes, they're better the SR. |
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Experiment with fuse direction, it makes a difference |
Give the AH fuse a week to settle in, definitely more palpable and organic sounding than the SR.
Know of anyone looking for a Vac 160i? |
Experiment with direction the second day, I like Cannon D or something with good high end extension and you'll hear the right direction has more clarity/focused soundstage. |
You can slide the fuse tray out with a golf tee or a small screw driver and pop the fuse out of the clip which takes me about 5 seconds. |
I pull from the bottom of the fuse and it slips right out of the clip. |
Just make sure the fuse is centered in the tray and it should slide right in. |
That's great and enjoy :) |