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THANK YOU!...
for choosing the Manley Laboratories REFERENCE 20 BIT DIGITAL TO ANALOGUE
CONVERTER. Please read over this manual carefully as it contains information essential to
proper operation of this unit.
The MANLEY DIGITAL TO ANALOGUE CONVERTER features completely dual-
mono analogue sections and power supplies. The digital board features the only 20-BIT, 128x
oversampling converter unit available today, custom made for us by ULTRAANALOG. The
128x oversampling rate at which the ULTRAANALOG operates eliminates the need for steep
anti-alias filters, and eliminates differential non-linearity and harmonic distortion for low
amplitude signals. The ULTRAANALOG AES-21 chip effectively removes incoming jitter
from the digital inputs. This monolithic device contains 2 separate precision phase-locked loops
- the first is digital and removes higher frequency jitter, the second is designed to remove any
remaining jitter. Unlike earlier AES / EBU / SPDIF interfaces that allowed only 16 or 18 bits
through this device allows up to 24 bits through. The only digital processing used is the HDCD
® filter chip. Not only does it provide the path for HDCD ® recordings it is also the best
performing digital filter available. For maximum fidelity and musical involvement the line
amplifier is all tube differential input / totem output vacuum tube design with both balanced
and unbalanced outputs available.
LOCATION & VENTILATION
The MANLEY DIGITAL TO ANALOGUE CONVERTER must be installed in a stable
location with ample ventilation. It is recommended, if this unit is rack mounted, that you allow
enough clearance on the top and bottom of the preamp such that a constant flow of air can flow
through the ventilation slots.
INTRODUCTION
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WATER & MOISTURE
As with any electrical equipment, this unit should not be used near water or moisture.
If liquid enters the unit, it must be immediately returned to your dealer for servicing.
SERVICING
The user should not attempt to service this unit beyond that described in the owner's manual.
Refer all servicing to Manley Laboratories.
WARNING!
TO PREVENT THE RISK OF ELECTRIC SHOCK
DO NOT OPEN THE CABINET
REFER SERVICING TO
QUALIFIED PERSONEL