Shuguang Audio SG-845-7 845 300B integrated tube amp

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Stercom

Shuguang Audio SG-845-7 845 300B integrated tube amp. 21watts of SET power with interstage coupling transformers and huge output transformers. This is a very well made Chinese amp with excellent sound quality. All Shuguang tubes are included. The price of these has gone-up drastically because of the tariffs and shipping costs. $1,250 Paypal F/F. Shipping will be $250 in 48 States (75lbs of transformers!) I would strongly recommend pick-up in Charlotte, NC

Here is a YouTube video I just made showing the amp playing, holding steady bias and no hiss, hum or static: https://youtu.be/t-1tXt-rVTA










« Last Edit: 6 Jun 2025, 09:34 pm by Stercom »

Rocket_Ronny

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Re: Shuguang SG-845-7 845 300B integrated tube amp
« Reply #1 on: 5 Jun 2025, 02:58 pm »
Very nice. I would buy this if I lived there.

How does it compare to your Line Magnetic I see there?

Thanks

Rocket Ronny

Stercom

Re: Shuguang SG-845-7 845 300B integrated tube amp
« Reply #2 on: 5 Jun 2025, 04:03 pm »
Very nice. I would buy this if I lived there.

How does it compare to your Line Magnetic I see there?

Thanks

Rocket Ronny

I've read, and based on the circuit layout of my Shuguang and my Line Magnetic, they are built in the same factory in China and probably used the same design team. Thats not true of all Shuguang and Line Magnetic amps just the 845s that use 300B driver stages. The real tell is the interstage coupling transformers used in these amps are identical.  Most Chinese tube amps use coupling caps (I guess thats true for most American tube amps as well because of the cost) There are differences between my amps in the fit/finish, features, quality of parts and the massive separate power supply the Line Magnetic has. Sound wise the amps are similar but the Line Magnetic delivers more current so its more authoritative in the bass/lower midrange and a little more refined on the top-end. About what you would expect based on their price difference.

mresseguie

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Re: Shuguang SG-845-7 845 300B integrated tube amp
« Reply #3 on: 5 Jun 2025, 04:35 pm »
75 pounds  :o

Is this model version 1 or version 2?


Stercom

Re: Shuguang SG-845-7 845 300B integrated tube amp
« Reply #4 on: 5 Jun 2025, 04:53 pm »
75 pounds  :o

Is this model version 1 or version 2?

The SG-845-7 is the latest version of these amps.

Stercom

Re: Shuguang SG-845-7 845 300B integrated tube amp
« Reply #5 on: 6 Jun 2025, 04:35 pm »
Here is a YouTube of this amp playing on the Tyler Acoustic T2 speakers I have for sale:  https://www.youtube.com/shorts/Kgyn7KEp_QY