Cartridge Gain Question

[cuddles]

As per title - I have an Audio Technica AT33PTG11. I'm using a Croft RIAA phono stage and am looking for a suitable SUT. What kind of gain should I be looking at?
Cheers.

[hifi_dave]

Take a look at the Rothwell head amps and x'mers. Excellent quality and very reasonable prices.

[Barry]

The cartridge has a typical output of 0.3mV, so an SUT with a 10:1 ratio will boost it to 3mV, which ought to be sufficient with the sensitivity of the Croft preamp (which model is it?).

Assuming the croft offers a load of 47KOhm, then the impedance as seen by the cartridge will be ~470 Ohm, which again ought to be fine with the AT33PTG. If you do need a lower value, then you can add a loading resistor in parallel with the secondary winding of the SUT.

[cuddles]

Thanks guys. Excellent info as always ;). The Croft RIAA phono has been a revelation. I've been running a cheapo Tonar Diablo cartridge through it and it really shouldn't sound as good as it does for a sub £50 cartridge. I'm curious as to how good the AT33PTG11 would sound.
I keep trying to convince myself that the Tonar is all I really need but there's always that nagging voice, isn't there? :rolleyes:

[Bigman80]

Thanks guys. Excellent info as always ;). The Croft RIAA phono has been a revelation. I've been running a cheapo Tonar Diablo cartridge through it and it really shouldn't sound as good as it does for a sub £50 cartridge. I'm curious as to how good the AT33PTG11 would sound.
I keep trying to convince myself that the Tonar is all I really need but there's always that nagging voice, isn't there? :rolleyes:Great cart the AT33PTGII.

[Hammer]

Take a look at the Rothwell head amps and x'mers. Excellent quality and very reasonable prices.

+1

[hifi_dave]

All the Rothwell products are unbeatable for the price.

[Clive197]

Great cart the AT33PTGII.

+1

[Firebottle]

I have an upgraded A&R HA-10 head amp that I am looking for £90, I'll include delivery.

[Jimbo]

+1

I see you have a Qutest there now Clive, what do you think of it?

I had one a few months back and was wowed!

[cuddles]

I have an upgraded A&R HA-10 head amp that I am looking for £90, I'll include delivery.

Cheers Alan - I know I should have put the feelers out a bit earlier coz I've got a Rothwell SUT arriving tomorrow :doh:.