Musical Fidelity CD Pre24 ユーザーズマニュアル

Issue 4:  May 2002

DAC architecture

24 bit Delta-Sigma (Bitstream)
Dual differential
8 times oversampling
(CD or DVD-audio conversion only)

Frequency response

20Hz to 20kHz:

< 0.02dB

Channel balance

20Hz to 20kHz:

< 0.02dB

Stereo separation

20Hz to 20kHz:

> 98dB

Total harmonic

0dB digital level:

0.002%

distortion at 1kHz:

-10dB digital level:

0.004%

-70dB digital level:

0.050%

Signal / noise ratio

20Hz to 20kHz:

114dB A-weighted

Audio output at digital 0dB level, 1kHz:

2.14VRMS nominal

Total correlated jitter:

< 189pS

Direct Analogue

A to D / D to A 

*

Maximum output for 2.2 Volts RMS input:

8.4VRMS

8.2VRMS

Distortion

20Hz to 20kHz:

< 0.002%

< 0.004%

Frequency response

20Hz to 20kHz:

+ 0, - 0.02dB

+ 0, - 0.37dB

Crosstalk, typical:

85dB

90dB

Channel balance:

20Hz to 20kHz:

< 0.01dB

< 0.02dB

Signal / noise ratio, “A”-weighted 20Hz to 20kHz:

109dB

104dB

Output impedance

50 Ohms

* 

These measurements made by linking the co-axial digital output back to the digital monitor, and using

DIGITAL MONITOR function.  This is converting an analogue signal to digital and then back to analogue,
as when linking to a computer or CD recorder.

Power  requirements

100 / 115 / 230V AC 50 / 60Hz   (Voltage factory preset for country)
22 Watts

Dimensions (approximate)

440mm, 17.3 inches wide
140mm,  5.5 inches high (including feet)
380mm, 14.9 inches deep (including terminals)

Weight

13.5Kg, 29.7lbs unit only, unboxed
17Kg, 37.4lbs in shipping carton

Standard accessories:

Remote control handset,
IEC mains lead,
4 batteries (type SUM-4, AAA, LR03)