Expedited shipping available for flat fee $25.00/order now

1) Expedited Shipping Upgrade for flat $25.00 per order:

We have been offering worldwide free airmail shipping for tube orders for a few years. Typical international airmail shipping could be 8-20 business days but courier can deliver a parcel in 5-7 business days in many cases.

In respond to buyer’s demand, now we are offering a flat fee expedited shipping option for all orders – the bigger order you place, the more saving you have as the expedited shipping is flat fee $25.00 only no matter how many tubes you order.  After placing / completing payment for your tube order on our site, simply use the ‘pay now’ button below to purchase your expedited shipping upgrade.

Expedited Shipping Upgrade for flat $25.00 per order:

DHL/Fedex/EMS Shipping Upgrade (note: our warehouse will decide which carrier to use. Buyer’s specific request cannot always be accommodated due to carrier shipping rate changes from time to time, but we will do our best):


We use DHL/Fedex/EMS solely at our choice depending on backlog of each courier to allow buyer to receive your order faster. (Please note this is not a guarantee for order arriving on certain date – shipping and customs speed is entirely out of our control, especially during holiday peak season.)

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Psvane KT88-TII vs. Shuguang Treasure KT88-Z vs. Original Mullard KT88

Comparison review by Gary S. – received by email:

Psvane KT88-TII vs. Shugang Treasure KT88-Z vs. original British Mullard comparison 

Recently I had the opportunity to compare two very interesting Chinese quads with a quad of vintage Mullard KT88. I have no vested interest in Psvane, Shugang or Grant Fidelity nor were any of these tubes given to me. I bought a matched quad of Psvane kt88-TII and a matched quad of Shugang KT88-Z was also available so I made this comparison and thought I would tell Grant Fidelity of my evaluation.

The preamp used is a McIntosh C2500 using vintage Tesla E83CC in place of the stock 12AX7A. The amplifier is a McIntosh MC275 V6 using Tesla E83CC and vintage Siemens ECC801S replacing the stock 12AT7. Vintage British Mullard KT88 is what I normally use and am familiar with. The speakers are a pair of Klipsch Forte II in parallel with Klipsch Chorus I running 4 ohms per channel to the MC275. The speakers have recent Crites crossovers and diaphragms. I have not had the opportunity to try the Shugang or Psvane 12AX7 or 12AT7 equivalents therefore those tubes are not included in this review.

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How to bias my new tubes in my amp to replace the stock tubes?

multimeter for biasA: Congratulations for getting new tubes for your precious tube amp. Chances are either your stock tubes are getting aged, or you are about to experiment some different tubes hopefully to improve the system sound to the better. Either way, it is a fun and exciting experience.

Please follow the steps below to change your tubes:

Step 1.: Confirm that your amp is working fine.

Sometimes you come to the point to buy new tubes because the amp somehow isn’t working properly. The issue could be the tubes currently in the amp are getting too aged; it could also be that the amp needs a re-conditioning in case resistor / capacitor are out of spec from aging. This is a very technical process – if you are not sure and cannot make an educated assessment from experience, talk with a tube amp service technician.

Step 2: Remove old tubes from the amplifier.

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“Super punchy, dynamic, smooth & highly detailed…”

TII CV181 tubes pair box-2Feedback received via email from Ricky B.:

“The CV 181-TII aka 6SN7 is a remarkable tube. I will standardize my amps around its new standard of excellence.

Super punchy, dynamic, smooth and highly detailed in a non analytical way. Very beautiful tone and body.

And they have 2 hours of break-in!!!

Thanks for freeing me from the over priced and questionable sonic integrity NOS nonsense.”

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“Top Notch in Every Way.”

TII 845 pair with boxFeedback from customer Charlie V. via email:

“The difference between the Psvane (845) TII tubes and the stock tubes are like night and day on steroids.  I am glad I re-tubed the amp and pre-amp all at the same time.  What a marvelous difference.  The air, sparkle, tonality of the music as well as the sounds of the instruments are stunning in the most enjoyable way.  I could not imagine better sound and enjoyment. I could and am listening for hours at a time.

The transaction could not have been more professionally handled.  I could not have had better results if you had a shop down the street.

Top notch in every way.

My amps are Cary Audio 805 AE
My pre amp is Cary Audio SLP-05″

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Grant Fidelity selected as ‘Dedicated Worldwide Supplier of Upgrade Tubes for Audio Note Kits (ANK)’

ANK-Audiokits-Header-logoIt’s my privilege and honor to announce that Grant Fidelity has been selected by the highly regarded ANKits (ANK) team as their dedicated worldwide supplier of upgrade tubes for ANK customers. It’s a recognition of Grant Fidelity’s ongoing efforts to bring ‘High End, Not High Priced’ audio products to worldwide clients with integrity, honesty and quality.

Grant Fidelity would like to extend our warm welcome to ANKits owners / customers as Preferred Customers of Grant Fidelity (Psvane Tubes’ Worldwide Officially Authorized 5A Distributor and the only authorized reseller in North America).

As a Preferred customer, you will not only enjoy the quality that Grant Fidelity / Psvane Tubes represent, but also special discount on your selected purchases. When you are ready to place your order, simply contact Grant Fidelity by email with the ANK model you own, the upgrade tube model number you would like to purchase and quantity to request your preferred pricing invoice.

Grant Fidelity hope that through our product and service, we can enhance your enjoyment of the pleasure of high fidelity audio, especially ANK products.

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“Psvane 12AX7′s in the phone pre application?: Highly recommended”

TII 12at7 pair with boxFeedback received via email from Steve D.:

“Are those stupid Psvane 12AX7 T-II’s you guys sold me ever good! Instead of doing the standard PC audiophile “audition report” routine, permit me to be real. When I got into audio in a serious (i.e., a spiritual) way around 1999/2000, I found Arthur Salvatore’s new (back then) website (high-endaudio.com), and I have been a convert to low-level information retrieval ever since. My system is very biased towards this. I use a Jean Nantais Classic Lenco TT, with upgrades, which leads my vinyl front end (history will judge him as the Stradivarius of turntables, no exaggeration). George Wright’s (RIP) gem of a 12AX7 phono pre. Large double c-core passive TVC line stage. DIY crossover less full range speakers, 97 db/w/m.

My system won’t make the front of any audio mag, but it is very revealing. My initial impressions of the Psvane tubes in the Wright phono were: mids opened up first, dramatic increase in sound stage depth (plus other improvements); then same for bass; highs were the last to develop; getting better with every album.

Posted in 12AX7-T/TII, Review & Feedback | Leave a comment

“The Psvane (12AX7-TII) were obviously better right out of the box”

TII 12ax7 pair tube boxFeedback received from Stephen D. via email:

“The Psvane (12AX7-TII) were obviously better right out of the box. Most importantly, I was hearing nuances that I hadn’t heard before. Better low-level information retrieval, which is the most critical sonic parameter, IMO. On Art Blakey / Jazz Messangers Three Blind Mice, the lead trumpet was more forward towards the mic, both spatially and sonically (in terms of amplitude – I’m still digesting this one, very different presentation). The music had all around better organization / less homogenized. Tone was excellent. Also listened to reissue of Joni Mitchell’s Ladies of the Canyon and Clapton’s Unplugged, which were better than I had previously heard them.

The frequency extremes are slower than the mids to open up, but I only have 2.5 albums worth of listening, so far. My initial impression are that these T-IIs are an excellent choice in the phono preamp application in terms of sonics, and thus they offer good value. I’m looking forward to further re-visiting the mainstays of my vinyl collection to hear what I’ve been missing.”

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More affordable yet outstanding performance options available now – KT88-UK & 6SN7-UK

psvane 6SN7-UK single with box-small

psvane KT88-UK single with box-small

The newly launched Psvane KT88-UK and 6SN7-UK are filling the gap on the market for affordability and performance. Presenting a warm relaxed ‘British’ tube sound, these UK series will give you an excellent option when you consider to swap out your old tired generic tubes come from your amp manufacturer.

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Tung-Sol KT120 and KT150 now available

tung-sol kt150 single with box

tung-sol kt120 single with box

In response to strong demand for high output power tubes, we now carry Tung-Sol KT120 and KT150 tubes in matched quad. Matching service is provided by the Tung-Sol USA distributor and we ship from Canada to buyers worldwide.

Check out details and pricing here

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