Like the Positive Feedback review says, the difference between the standard Chinese (Sino) Shuguang 845 tube and the Shuguang 845B tube is not subtle.
In his review Roger Gordon says, "To summarize, the advantages of the Shuguang 845B tubes over the standard Shuguang 845 included less noise, better handling of low frequencies, a smoother, more natural sound, and greater detail... It is like going from a $1500 preamp to a $4000 preamp. You can enjoy the music through both, but once you have heard the $4000 preamp it is hard to go back to the cheaper one.
Other Shuguang tubes 845 Types
Additional Information and Downloads
Tube Matching Information:
These tubes are packaged in boxed sets of two (matched pair). You need to order "2" tubes to receive this boxed set.
If "Single - White Boxed" option is selected we will send un-matched tubes in the quantity ordered.
Warranty Information and Return PolicyWarranty Period: 3 months
All our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)
If you receive a tube that does not perform to the manufacturer's specifications, please do the following:
- contact us to get a return authorization
- return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.
Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.
We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.
These guidelines may be updated without notice.