[frank2908]

I have a sansui au20000, which drove my kef ls50 to perfection. But I sold the kef and would use it mainly for my hd800
Comparing the mojo dac out to Sansui vs mojo internal amp powering my hd800, the sound is almost unchanged. There is no extra detail, soundstage remain the same, except the sansui make it sounds a little bit smoother.
I think the amp has never been restored, Should I invest time and money to recap or sell and buy something modern for my hd800?

 

[Byronb]

The noobiest Sansui noob here and my first Sansui amp. Got it today and it looks pretty clean. Haven't applied any power yet, but will do that soon.
$160 plus $40 shipping -- that may be way too much, but I'm happy.

If you are happy it's not way too much.

 

[petemac110]

The noobiest Sansui noob here and my first Sansui amp. Got it today and it looks pretty clean. Haven't applied any power yet, but will do that soon.
$160 plus $40 shipping -- that may be way too much, but I'm happy.

Nice buying! In my opinion you've done well. It's not a steal, but given the condition, it's a very reasonable price. I use a fully overhauled 317 in my PC rig and it never fails to satisfy. 50 WPC and the same general sonic signature as its larger brethren such as the AU-517 and 717.

It appears that a few capacitors have already been replaced, although I can't tell if they are a reputable brand or not.

 

[DRHamp]

Nice buying! In my opinion you've done well. It's not a steal, but given the condition, it's a very reasonable price. I use a fully overhauled 317 in my PC rig and it never fails to satisfy. 50 WPC and the same general sonic signature as its larger brethren such as the AU-517 and 717.

It appears that a few capacitors have already been replaced, although I can't tell if they are a reputable brand or not.

Thank you, I'm going to take it a local shop that advertises that they do vintage electronics restores and have them look it over. Don't know if they know what they are doing though, so I'm pretty much taking a chance.
Anything in particular that I should watch for?
I actually have a 7900 hopefully arriving this week and I'm hoping it's in similiar condition. At any rate, I'm planning to send it to the Vintage Sansui restoration place in Eugene Oregon.
Any advice for this noob would be appreciated.

 

[UntilThen]

Thank you, I'm going to take it a local shop that advertises that they do vintage electronics restores and have them look it over. Don't know if they know what they are doing though, so I'm pretty much taking a chance.
Anything in particular that I should watch for?
I actually have a 7900 hopefully arriving this week and I'm hoping it's in similiar condition. At any rate, I'm planning to send it to the Vintage Sansui restoration place in Eugene Oregon.
Any advice for this noob would be appreciated.

Have you heard it yet? How do you like it compared to your Mjolnir 2.

NIce pickup on the 7900. I love the 7700 too. You have the Yggdrasil. It will pair very well with these vintage Sansui.

 

[UntilThen]

I have a sansui au20000, which drove my kef ls50 to perfection. But I sold the kef and would use it mainly for my hd800
Comparing the mojo dac out to Sansui vs mojo internal amp powering my hd800, the sound is almost unchanged. There is no extra detail, soundstage remain the same, except the sansui make it sounds a little bit smoother.
I think the amp has never been restored, Should I invest time and money to recap or sell and buy something modern for my hd800?

I'm still new to vintage Sansui amps but that au20000 is the biggest of the Sansui integrated amps, a much sought after amp.

I've had Mojo, Ragnarok and several tube headphone amps before. Not bashing any of these because I think they do sound very good with my HD800 and LCD-2f but my trio of Sansui au-505, 7700 and 717 gives me much greater joy with these headphones. It's the lovely Sansui tone that I can't get enough of.

 

[DRHamp]

Have you heard it yet? How do you like it compared to your Mjolnir 2.

NIce pickup on the 7900. I love the 7700 too. You have the Yggdrasil. It will pair very well with these vintage Sansui.

Just fired it up - Qobuz on Win PC>Yggy>317>HD800S

Very very nice - warmer than the Mjolnir and more resolving. It really tames the 800S brightness (which I pretty much have become used to).
I need to provide some attenuation at the headphone out though - I barely have the volume knob at 7 o:clock -55 db or so. Very clean and dark with no signal up to about 2 oclock where some noise starts to creep in. Might re-capping etc solve this?
Gonna try it with my Aeon closed and for grins with the HD6xx.

 

[UntilThen]

On the 7700 and 717, there is a muting switch which when set on, gives me a lot more room to move the volume control. Pretty useful. I don't see it on your 317.

Just tried the 717 - no music on and I could turn the volume knob to max and there's no noise. Quite incredible for a 40 year old amp right? ... the restoration has made it better than new.

 

[DRHamp]

That's awesome - hopefully my restore will clean the noise up.
I can put a passive preamp between the Yggy and the 317 - that might do it, or would it be better to attenuate at the headphone out?

 

[UntilThen]

You can try with a passive preamp but personally even without the muting switch, the slight play of the volume knob didn't bother me. On the 717, it's at 7 o'clock. Power is there aplenty but controlled. Like cruising on the open road in a Rolls Royce.

 

[UntilThen]

Was only a year ago when I really love this set up.


Now I have a new favourite.

 

[DRHamp]

Yeah, 6:30 - 7:30 is pretty comfortable and it is definitely better without the passive preamp. Just seemed to be used to running volume between 10 and 2 -- Don't think I really need the additional power of the 7900 - at least for headphones.

 

[DRHamp]

Very nice - I love the Yggy and that 717 looks awesome

 

[DRHamp]

I'm going to have re-organize this mess - and I really like the MJ2, but it may have to go.

 

[DRHamp]

Well, this solves the attenuation issue - -15 & -30 db switch. It sound great, just needs to be cleaned up a bit.