Goldpoint SA4M-47 passive 'preamp' winging its way to Marco Towers...

[awkwardbydesign]

+1 on Gary's new amp . I've heard it a couple of times now and it's stunning . Gary tells me that it sounds even better since the last time I heard it

Yes, ironically given this thread, but we have just found out that the noise floor of his preamp is now a limiting factor.

How much gain does it have? I recently sold a Consonance Cyber 222 Mk2 pre for this very reason. It had 28dB of gain! My passives work well into my power amps, so that was somewhat excessive. Part of my liking for passives is the low noise floor, especially as I listen late at night at very low levels. And resistive passives have lacked drive in my system.

[lurcher]

Is it the pre causing the hiss Nick?

Yes, he unplugged the pre and it all goes quiet, which is how it was when it left me, you know how arsy I get about amps that make noises on their own.

[Gazjam]

Yup, what Nick said.
Unplugged the pre and it was gone.
Nick's stuff is bulletproof.

Hiss not terrible, and you certainly dont hear it when musics playing even at low volumes.
Now VERY interested in a good quality passive pre and what it can do for overall system sound.

Marco,
hope you can bring your over to mine when up this way.

[struth]

Yup, what Nick said.
Unplugged the pre and it was gone.
Nick's stuff is bulletproof.

Hiss not terrible, and you certainly dont hear it when musics playing even at low volumes.
Now VERY interested in a good quality passive pre and what it can do for overall system sound.

Marco,
hope you can bring your over to mine when up this way.

You could try my tvc once ive got the Sony up and running

[Ali Tait]

Yes, he unplugged the pre and it all goes quiet, which is how it was when it left me, you know how arsy I get about amps that make noises on their own.

Well there's a thing - a valve power amp that's quieter than a SS pre..

Gary, will bring the Slagle passive over. Free on Friday if you are?

[awkwardbydesign]

Yup, what Nick said.
Unplugged the pre and it was gone.
Nick's stuff is bulletproof.

Hiss not terrible, and you certainly dont hear it when musics playing even at low volumes.
Now VERY interested in a good quality passive pre and what it can do for overall system sound.

Marco,
hope you can bring your over to mine when up this way.

The thing with the noise floor is that often you don't hear it until it drops away. A bit like the wife. (She is sat next to me so I have to type quietly.)

[r100]

Still trying to visualize the difference between shunt and series pots. Got this drawing from the web.. is this what it is ?

ShuntMod2.gif

[mikmas]

Still trying to visualize the difference between shunt and series pots. Got this drawing from the web.. is this what it is ?

ShuntMod2.gif

That's how I understand it to be - this page from the Goldpoint site is also useful:
http://www.goldpt.com/attenuator_types.html

[Desmo]

Still trying to visualize the difference between shunt and series pots. Got this drawing from the web.. is this what it is ?

ShuntMod2.gif

Yes that's it - that picture looks like the one that was used on the WAD forum. Several people used that mod at the time - often because the WAD PRE II and WD PRE 3 valve pre amplifiers had too much gain. The shunt mod moved the useable section on the volume control.

[r100]

thank's