Shuguang 845B Power Vacuum Tube

1 Review
SKU: SH-845B

Availability: Usually ships within 24 hours.

USD $‎119.95

Need matched power tubes? Don't worry! Price includes matching in any quantity you need for no extra charge. Need a matched pair? Just order "2" tubes. For a matched quad order "4" tubes. Matched sextets and octets are available as well.

Like the Positive Feedback review says, the difference between the standard Chinese (Sino) Shuguang 845 vacuum tube and the Shuguang 845B power 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

Warranty Information and Return Policy

Warranty 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.

Ratings & Reviews

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The Go-To Step-up From Stock 845 "A" Tubes


If you want an upgrade from the ubiquitous, dry-sound Shuguang 845A supplied stock with most 845 amps, this 845B is the affordable go-to. It won't break the bank but delivers much greater liquidity and nuance over the entry-level A, with sharp improvements to bass quality and depth, and the full-spectrum shove factor audibly improved. Very robust construction and sound. Very long life. Top end response is fully present but a little rounded off compared to next step-up options like the Natural Sound 845T and beyond.