My System

[KTea88]

This is my system

[buddam]

I expect it is as sonically appealing as it is visually. 3 Questions:

What's the t/t, arm, cart;
What's the support/rack;
and what are the speakers?

Certainly given me food for thought

Cheers

Adrian

[KTea88]

asnswer to the questions :
1) the turntable is a GYRODEC SE arm is a Origin Live Silver Cart is Ortofon mc10 super

2) The support rack is my design and built by an engineering friend with CNC machines 10mm perspex shelves with the main supports made from solid stainless steel with cone and cup decupling each tier is completely removable.
I hate to think what it would cost to buy in the shops, the materials alone were about £500.

3) Speakers are based on the Kapplemeister, a transmission line design.
built with 25mm mdf with maple vaneer.
The drive units are Tannoy dual concentric 6" these are used in their near field monitors they have a case alloy basket. the units on top are again Tannoy ST25 super tweeters.
The speakers are fully active via the Behringer Xover.

[bigbill]

Originally Posted by KTea88

asnswer to the questions :

The speakers are fully active via the Behringer Xover.

How do you set up the crossover? E.g. How do you decide on slopes and frequencies - is it by ear, or is it more technical.

I'm curious because it is a route I am considering.

thanks
Steve

[KTea88]

steve,
started off with the same xover freq as Tannoy use passive quite low 1.2khz. way too in your face, so ended up being tuned by ear xover point ended up at 3.2khz.
the slope is 24db Linkwitz-Riley no option thats what the xover gives you.

[Primalsea]

Whats your thoughts on the active XO that you have. Do you find that it has a high noise floor, mostly hiss audible through the speakers even at a distance or is yours quite quiet?

[KTea88]

Paul,
There is a bit of noise comming through some hiss/hum, but I found the cure was to lower the input gain on the xover. so the pre amp has to be driven a bit harder, not a bad thing anyway.
so the only real added noise floor now is the power amps.
It would be nice is WD did a kit xover and get away from those nasty op amps.
I suppose I could open up the xover and see if I could find a burr brown op amp version to fit. humm! now thats an Idea.

[Primalsea]

That's what I did on mine, I change the Opamps for better / quieter ones. Oddly the hiss has reduced sinse I changed over to valve amps. Also T amps were very quiet also. My homemade 6 channel amp was quite noisy even though it measured as being very quite on the scope.

I've heard that 24dB LR Xo's can be a noisy topography but I think that my issue is that the 6 channel amp has vent holes in the sides and a mesh top and bottom so it hasn't 100% shielding.