Caiman passive output mod revealed

[Ali Tait]

I've got 100K input impedance on my modded PreII so I can get away with 0.47uF for a 3Hz rolloff....the Orange drops and RTX are actually 1uF, the Soniqs and AudioLinks 0.47uF.

How is it modded Neal? I have a pre2 also. Circuit is unmodded but I've replaced all the components.

[NRG]

Well it's not really a preII anymore, CD and AUX input go into a cathode follower and the phono input goes to the volume control direct IE passive.

[HighFidelityGuy]

That's good to know. I may finally solder them in once I'm completely happy. Actually, I'm very happy with it now.

I tried cranking the volume all the way up today and I only get a tiny bit of fizzle through my speakers. I had to put my ear right next to the tweeters to hear it. However based on the experience I've just had trying to re-solder the caps on the via's between the ribbons I personally wouldn't recommend soldering to them unless you're absolutely sure you won't be changing the caps in the future. I say this because despite being extremely careful I managed to lift the PCB track from the right hand via. They're very delicate. Personally I think soldering the caps to the holes where the right ribbon connects to the front board is better. That way you're still removing the ribbon and a fair bit of PCB track out of the signal path but you've got proper holes to solder one side of the caps to. Obviously you'd have to chop out a bit of ribbon but that's much easier to replace than a knackered via.

Seen as I no longer had a connection between the DAC chip and the ribbon due to the broken via, I've had to solder a bit of wire to the bottom of the board before the via's bring the signal to the top of the board. I've now got some little sockets that I can plug different caps into to do some cap rolling.

[MartinT]

Dave, you definitely don't get any funny noises between tracks or when switching inputs? That would be the decider for me taking the muting relay out of circuit.

[Ali Tait]

Better to use some thin wire IMO.Solder this to the board and take to the cap,then another wire from the other side of the cap to the phono.This way,you're only soldering to the board once,and it's easy to change caps too.See the pic I posted.

[Ali Tait]

Well it's not really a preII anymore, CD and AUX input go into a cathode follower and the phono input goes to the volume control direct IE passive.

Ahh yes,I remember the posts on WAD Neal.I believe Greg amongst others has done the same.

[The Vinyl Adventure]

http://eshop.tirnaelectronics.co.uk/...40b090d9b781f9

This is the one I want right?

If that is right, then there you go everyone a useful link

[Ali Tait]

Those will do the job Hamish.You might want to try a few different ones to see what you like.

[The Vinyl Adventure]

Ta, yeah, one step at a time, I need to find out I it works in my hifi first
I'm really looking forward to comparing it to the majik ds-i!!

[The Vinyl Adventure]

£2.12