greetings from ireland!

[ponomica]

Hi all,
So I'm finally gonna take the plunge and go ahead and buy a few of these pre's..........just got a few general queries before I do this...

1) I'm Irish tooh rah looh rah lae...does anyone know if a) tim actually delivers overseas and b) are there jumpers or something on the power supply to enable it to work with european power.

2) As this will be my first foray into an electronics project I'm unashamedly chickening out of its assembly. Hopefully after enough circuits have fried I will delve into this endevour myself someday but as it stands now, i'd rather have the peace of mind knowing that someone else is to blame! So does anyone know of, or could recommend someone to assemble them for me......?

3) I've read a post on this site where the poster had a slight gripe about the s/n ratio of his J77...he said it was reading -83db (in and out gains all the ways down).I'm thinking this seems excessive, if not wrong. Just wondering the general consensus amongst users; if this is exception rather than norm?


Many Thanks in Advance

[tpryan]

does anyone know if a) tim actually delivers overseas

We're happy to ship anywhere UPS delivers, Ireland included. Click Order->Ordering Instructions and scroll down to "international orders" for details.

b) are there jumpers or something on the power supply to enable it to work with european power.

The PS03 will work on any mains voltage from 85VAC to 250VAC. No switches or jumpers need to be changed.

s/n ratio of his J77...he said it was reading -83db

It takes a good deal more to measure the S/N ratio. As a crude measurement of absolute noise, it's probably not unreasonable.

[ponomica]

It takes a good deal more to measure the S/N ratio. As a crude measurement of absolute noise, it's probably not unreasonable.

even with the ins and outs down all the way?

[tpryan]

Turning the gain down is not the same as pulling a fader to 0. Even at minimum gain, there's still noise voltage at the output. If you want to do a proper measurement you need to terminate the input and output properly, measure the gain, measure the noise voltage within a specific bandwidth, and then normalize for the gain. The resulting number is the equivalent input noise (EIN), also referred to as input referred noise.

[ponomica]

Ahh.....excuse my eyesight... those are trim controls for the stepped gain-stage.i thought they were output faders..apologies.....