Is the extra money worth it


I need new 845 tubes for my Cary CAD211M mono blocks. 

Is it worth the extra money?

Tube options from Grant Fidelity 

  E-845 Moly Metal Plate vacuum tubes ~ $2K with 10% grading

WE845 Western Electric Replica vacuum tubes ~ 1.5k with 10% grading

how about spending extra on Top 10% Measurement, Best of Best Grade ~ $50 per tube?

Will I be able to hear a difference between the grades ---worth the extra money?

Thanks,

Tony 

System below;

Audio Research LS26

Audio Research PH8

Cary CAD 211M driving Tyler Acoustics with transparent music wave Ultra cables

Lamm M1.1 driving Wilson Sophia with Harmonic Tech pro-9 cables

Snake River Audio interconnects and power cables

Dedicated AC line  10 AWG

Rega P8 with Apheta 3 cartridge

Rothwell MCX trans

 

 

agrogon

@agrogon Funny that I live not far from Grant Fidelity.   My understanding is Grant had a falling out with PSVane and stopped selling their tubes.  Grant now mostly sells Linlai.  Not being an expert, I read as much as I could and got the feeling PSVane Acme series is equal to anything out there.  I'm very happy with the product and China HiFi is a reputable vendor.  Have bought from them a few times.   Delivery to my door by DHL was about 12 days. 

I ordered the Acme 845 PSVane from China-HiFi, will let you know how it goes.

Thanks for advice!

@agrogon Send me a message once your listened to them.  Hope your experience is a good as mine.  Cheers.