Psvane Acme Series (new flagship series)

matakana

New Member
Aug 26, 2020
28
15
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UK
Anyone can provide a reliable seller for the ACME's?


I received a Acme 274b in very good time from the above, its beyond belief in my allnic phono power supply, I have tried many different types, but this is very special!
 

Steve Vu

New Member
Oct 26, 2020
22
6
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Hi all,

I have 2 pairs of Acme 845s for sale. These are the kind of top 10% measurement and still under warranty more 1 year. PM me if interested.

Thank you.
 
Last edited:

JSA

New Member
Dec 20, 2020
9
2
3
51
Hello everyone! (A newcomer here).

Has anyone compared ACME 805 with the newest Linlai 805DG? Has anyone tried Linlai 805 tubes? Are they really as good as it is claimed?

I have recently re-pointed anode cap wire to the socket on my Wavac MD-805m monos, and can now use 805A tubes.
Acme is really nice I must admit - still breaking in.

BTW: switching to 805 tubes without anode nipple, it means I have some spare 805 tubes to get rid of (Cossor 805M - new, 805 Reference T Psvane - used, Shuguang 805-FU-new). Please PM me if interested.
 

kodomo

Well-Known Member
Apr 26, 2017
704
800
170
I got the acme 300b as well. I took out psvane we300b replica plus tubes. Now acme 845 has his sister to play along.
 

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Kingrex

Well-Known Member
Feb 4, 2019
452
197
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I bought these tubes from Grant Fidelity. The North American authorized distributor. They redplated. Both. I took my amps to a tech. He said my amps are working perfect. The bias is right at 97 watts. The 845 tube should dissipate 100 watts if built correct. I wrote Grant Fidelity and was given a baloney story in my mind, and 2 other tech minds that a tube should not be run at its full potential. Whatever. Be careful.

After a bunch of research I found you have to have your amps re-biased to 85 watts of plate dissipation to have these tubes funtion and not burn up. They don't appear to be a true 845 tube. At least they can not dissipate 97 watts, let alone 100 per spec.

This is a bit of a pain mod in my amps. Probably in yours too. That cathode resistor is massive. It has to carry a lot of current at 900 to1200 volts. And who knows what will happen to the tone as you dial back the power. The snap and speed on an 845 comes from driving it at full power. The amp could become kind of poofey. Once again my amps are in the shop for a couple weeks. Sure would be nice to use them instead of throwing money at them. These tubes better be worth it.
 

kodomo

Well-Known Member
Apr 26, 2017
704
800
170
On my 503pa mono blocks, the bias for the 845 is set at 70mA. I have had no problems running my tubes for over a year as of now.
 
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JSA

New Member
Dec 20, 2020
9
2
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51
So seems no one has tried Linlai yet? If anyone tried it - please share your impressions.
I am thinking (very tempted actually) to order one pair of 805-DG series, just to see whether these are indeed better than regular PSVANE.
In terms of ACME 805 - I must admit it is vey good after burn in but step up from regular is moderate. In my Wavacs 805m I have also changed recently 6Y6G into RCA (the one with larger globe) and it is really impressive. Much bigger difference than going from standard PSVANE to ACME on 805.
Apparently 6Y6G RCA gives better sound stage and more "breathing space" than 6Y6GT JAN GE. Interesting.
 

debk3141

New Member
Jan 18, 2021
1
0
1
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Has anyone compared the ACME 300b with the Sophia electric blue glass 300b. Or anyone have experience with the Sophia Blue Glass 300b
 

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