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Some users have reported that they experienced Psvane KT88-TII series reliability issue in the past 3 months including tubes shorted unexpectedly within short period of usage.
Although all tubes from Grant Fidelity were tested multiple times before shipping, the reliability issue was caused by a minor structure problem that can only be identified when a tube is heated over extended period of time. To correct this issue and continue offering Grant Fidelity customers the highest possible quality tubes, we have returned all our stock acquired prior to April 15th back to factory for a new batch that has the issue addressed in production.
New stock of Psvane KT88-TII series GF Grade A tubes now are in stock and we will start shipping back orders and warranty replacement from our Hong Kong warehouse right away.
Thank you for all customers support to our continuous efforts in pursuing high quality products.
When placing order on the website, you may be notified that a product is ‘out of stock’ at time of order or after the order is placed (we take many phone orders so the website stock level may not have been updated in real time).
When the product listing has ‘out-of-stock’ notice and if we have plan to re-stock it, we will be glad to accept pre-order with payment by credit card or Paypal. Your pre-order will have priority over others to be fulfilled once new stock arrives. Many GF Grade A tubes have waiting list once it becomes out of stock – these tubes are of limited quantity. First come first serves so please get your pre-order in line as soon as you can.
In each factory run of tube production, tubes meeting Grant Fidelity test method Grade A requirements are very limited (less than 25%). We will never ship lower quality grade tubes in order to fulfill shipment.
If a tube is out of stock and your order has been placed, we will email you in 24 hours letting you know of future stock availability. You have the option either to take an immediate full refund or your order will be in line among other pre-orders for guaranteed fulfillment from new arrival stock.