Use Of The Dc Servo - LC audio Millennium User Manual

Use of the DC servo.

The End Millennium an integrated DC servo at Your disposal. You may use it or exclude it
from the circuit as You wish. Here is our advise on using it:
Some audio experts have the opinion, that DC servos affect the bass reproduction, and in
some cases they are right! The bass sometimes becomes soft and fluffy.
This is owing to the fact that the servos in some amplifiers run at a too high frequency cutoff
point of say 10-20 Hz.
In the Millennium we have put a great effort into making a DC servo that would not affect
the bass. The cutoff frequency is as low as 0,5 Hz, and there is a second order filter instead
of the normal first order types. This means the cutoff slope is steeper, and therefor affects
audible frequencies less. The DC Servo effect at 20 Hz is close to 0.
The filter caps C12 and C14 are plastic fiol types with non-magnetic pins, so even if the
whole sound had to pass through these caps, they would stand the test of most critical hifi
listening. However they are never in connection with signals above 0,5 Hz.
You should use the DC Servo If: You have electrostatic speakers with a high voltage
transformer, since it has a DC resistance of close to 0.
You do not have to use the DC servo if: You have normal dynamic speakers, they
accept DC errors of up to some 200 mV without any problems at all.
Parts.
The End Components:
The End Millennium 120W kit complete (1 ch.)
The End Millennium ext. 180W kit complete (1 ch.)
Heatsink for for 120W ( 2 pcs needed for 180W )
Super Power Supply Mk2 120.000uF/63V + Rect.
Transformer 2 X 33V 500 VA for 99 / 120W low noise (240 V primary)
Transformer 2 X 40V 600 VA for 180 W low noise (240V primary)
Auxillary Transformer 2 X 40 V 30 VA f. 120W/180W version
Cabinet kit with 10mm. Aluminium front. Black finish 140 mm. Height
Accessories:
Digital Softstart module for power amplifiers up to 2000 VA
Mains noise filter 10A incl. Case
Mains DC filter, stop the humming! ( module for build-in)max. 500 VA
Speaker Terminals WBT 0763, 2 pcs.
RCA receptables, 24k gold plated with TEFLON, 2 pcs.
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The End Millennium
L C Audio Technology