My new preamp have no name yet. I thought about "The Collector", but thinking it over it does a lot more than that.
|Basically this is an 8 input stereo switcher with passive volume control through the Sowter transformers.|
|The mecanical job is always the most difficult. Anyway that
is how I see it!
Herr the back of the preamp. As it can be seen there is a completr dual-mono layout of the 2 main-channels. The 6 "surround" channels will run down through the center of the box (NLE 17 with ganged attenuators). PSU will be external and only for the relays and the 6 surround-channels, as the main stereo runs passive through Sowter volume control transformers.
In the bottom of the picture the 28 relays for the volumecontrol of one channel.
|To control all the switching as well as the remote I
contacted Mikkel from Dantimax (e-mail:
firstname.lastname@example.org). I'm no good when it comes to constructing digital
circuits, but Mikkel is.
He made the electronics which will controll the 2 x 28 relays for the volume control as well as 2 x 8 relays for the inputs. On top of this there is 3 more relay-outputs for mute, mono and display off.
All functions can be controlled by remote and each input can be configured with a level setting to compensate for output differnces.