SFD-2 MKII TECHNICAL SPECIFICATIONS
Input Receiver
UltraAnalog AES21 AES/EBU
ultra-low jitter Input Receiver
HDCD
®
Digital
Pacific Microsonics PMD100
Filter/Decoder
D/A Converters
2 dual UltraAnalog D20400A
(balanced configuration)
Low Pass
Proprietary passive configuration
Analog Filter
Frequency Response 5 Hz to 20 kHz + 0.5 dB
20 kHz - 0.25 dB
Intrinsic Jitter
< 40 ps (picoseconds)
Jitter Rejection
From 1 kHz and above (6 dB/octave)
“A” weighted
> 120 dB
S/N Ratio
Crosstalk
> 110 dB @ 1 kHz
> 95 dB @ 10 kHz
THD
< 0.05 %
Output Voltage
Approx. 3.5 Volts (HDCD/S.E.)
Approx. 7.0 Volts (HDCD/balanced)
Approx. 1.75 Volts (non-HDCD/S.E.)
Approx. 3.5 Volts (non-HDCD/balanced)
Output Stage
Fully balanced (for AC and DC
parameters), high speed tube buffer
Digital Inputs
Coaxial (RCA), Coaxial (BNC), Optical
(H-P/ST-Type glass fibre), AES/EBU (XLR),
Optical (Toslink)
Digital Output
Coaxial (RCA)
Analog Outputs
1 pr. Single-ended RCA
1 pr. Balanced XLR
Tube Complement
2 - 6922 (E88CC)
Dimensions
19” Wide x 13” Deep x 4” High
(48 cm x 32.5 cm x 10 cm)
Weight
28 lbs (13 kg) - unpacked
Warranty
5 years parts and labor
1 year on the tubes
This symbol is intended to alert the
user to the presence of uninsulated
“dangerous voltage” within the
product’s enclosure that may be of
sufficient magnitude to constitute
a risk of electric shock to persons.
This symbol is intended to alert the
user to the presence of important
operating and maintenance (servicing)
instructions in the literature accompany-
ing the appliance.
THE HDCD PROCESS
The SFD-2 MKII includes a free HDCD-encoded sampler CD to
demonstrate the HDCD process. This process is a true advance-
ment in digital audio reproduction, providing one of the single
greatest improvements in digital audio since the introduction of
the CD format more than a decade ago. This sophisticated
encoding/decoding system greatly reduces both additive and
subtractive distortions in digital recordings, providing a resolu-
tion and freedom from distortion equal to that of analog record-
ings. In addition, the HDCD decoder’s internal digital filter pro-
vides significant sonic improvements to non-HDCD source mate-
rial as well.
BREAK-IN TIME
As with all audio electronic products, the ultimate sonic charac-
ter of the SFD-2 MKII will not be realized until and unless the
unit receives a minimum of approximately 150 hours of signal
break-in time (i.e. the SFD-2 MKII is on and receiving, process-
ing and outputting a signal).
UPGRADEABILITY OF THE SFD-2 MKII
The SFD-2 MKII is modular in design to allow for easy
upgradeability. Sonic Frontiers cannot guarantee that upgrad-
ed versions will be identical to newer production versions;
future upgrades will allow access to the essential/sonically
significant technological improvements.
