Selling two set of iFi NOS 6922 tubes. I think they are not made anymore, but they sound great when I used with Schiit. (Lyr and gungnir 2). They are actually 5670 with adapters, and are compatible in most 6922 variant circuits. One set is brand new, unused and plastic wrapped. Asking $90 The other set was used for about 100 hours. Asking $60. Please PM if interested. No trade for now. $150 if you take both. Buyer pays shipping and 3% paypal fee.