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Thanks for this info. All one can do is compile experiences to gauge what the resultant volume levels  will be. I'll be using the RS237 mostly in the  STR rectifying my Lampizator DAC, so was hoping folks that have Lampi DACs night chime in.

Has anyone tried the Cryotone 845?

The graphene Sluggo arrived yesterday and is in the STR-1002 Super. There you go Lon😉.

HK

That company has a few different variations with another using a pair of 805/845's . If I run out of things to spend $$ on I might buy one just for another tool in the chest.  So much cool stuff, so little money and time LOL

I'm planning to try with the STR-104-Mk2-Super-DUAL, as I would like to be able to use 2.5 V and 5 V tubes (without needing the double tube adapters for the 866a tubes), and I like that it works with two pieces of equipment.

Anyone who has both the STR 104 and either the STR-1002 or STR-1004, notice any difference in using the same tubes between these?

Thanks. I think I'll start with the 104 at least. I have boxes of 2.5 v and 5 v rectifiers I've accumulated to try. I'm going to use it for headphones initially, but may switch it once I get the monoblocks. Using ZMA currently. Will post once I have some impressions.

I really haven’t heard anyone discussing the JYL tubes.  

What is the sound character? How are they different from the Linlai E845 and Natural Sound 845-T?

How many hours did you have on the E845s? What do you consider the HiFi sound? I found the E845s to very very light and delicate an ephemeral sound. I think especially with the STR 100+ hours minimum maybe closer to 200 for them to fully settle.  

I have the same report for the Natural Sound 845-T

You are selling me on the JYL.  Once I get the 845 amps I might end up giving the JYl a spin.

Interesting indeed.  🤔 about possibly upgrading my stock DGR tube
Camp007 Where did you buy the JYL WE845 from and their cost?  Also noticed they make a 845+ version thats looks like their entry level 845.

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I get what you mean, thank you.

The fuse is in a little drawer below right below the power connector. I changed mine, no problem. I could read the value on the old fuse, I think it was 2 amps but I don't remember. If you can't can find the value on your fuse I'd encourage you to email AL and get the correct rating for your unit.

Just wanted to add a note, as I'm not sure of your specific needs of changing the fuse. If you are intending to use a sluggo with a SDFB to replace the fuse, I wanted to share my experience. The fuse in my STR was rated at 1.25A SB. When I got a Swiss Digital Fuse Box with the same rating, it kept tripping the fuse box and shutting down the STR. Interestingly, when I tried a different backup ceramic 1.25A SB fuse there was no issue. Only with the SDFB and sluggo. After speaking with AL at Space Tech Labs, he confirmed I could use a fuse rated up to 2A SB in the STR. In speaking with Mark at Vera-Fi, he advised they could also slightly extend the slow blow of the fuse and that would help with large inrush current from the STR. After getting the fuse box reprogrammed I've not had any issues since. Also, just to note, I didn't have the issue when I was using two 845 tubes. It was only when I tried using higher current tubes like the 4B32 and 872A, that it was tripping the SDFB.  

Just as a data point, I have both a Dynagrid Jnr and an STR104Mk2.  Which one is best I hear you ask!?

Well, they are different.  The Dynagrid has a slightly softer, more mellow, mature and sophisticated sound to it, the STR has a livelier, slightly brighter, pacier and more "get up and go" sound to it with better imagining.

For my tastes, Im going with the STR...

A Jan 8020 and a 866A

Exactly, horses for courses