Kenwood DM-SG7 User Manual

DM-SG7(EN)
12
LR
DIGITAL IN
OPTICAL
SYSTEM
CONTROL
REC
IN
PLAY
OUT
1
2
DIGITAL
OUTPUT
OPTICAL
DIGITAL IN
OPTICAL
SYSTEM
CONTROL
L
R
PLAY
REC
MD
1
System connections
Make connection as shown below. When con-
necting the related system components, refer
also to the instruction manuals of the related
components.
Caution: Do not plug in the power lead until all
connections are completed.
1. Connect all cords firmly. If connections are loose, there could be loss of sound or noise produced.
2. When plugging and unplugging connection cords, be sure to first remove the power cord from the AC outlet.
Plugging/unplugging connection cords without removal of the power cord can cause malfunctions or damage
to the unit.
Malfunction of microprocessor
If operation is not possible or erroneous display
appears even though all connections have been
made properly, reset the microprocessor refer-
ring to “In case of difficulty”. o
¶ For CD recording, the CD-TEXT function, and for posi-
tive system operation, connect the CD player (DP-SG7)
to “DIGITAL IN OPTICAL 1”. §ªº
¶ Commercial digital equipment (BS tuner, DAT, etc.)
can be connected to “OPTICAL 2”. §¶
DM-SG7
TO WALL
AC OUTLET
System control cord
Optical fiber cable
DIGITAL IN jack (OPTICAL)
Remove the protective
cap before using the DIGI-
TAL IN jack.
Audio cords
R-SG7 (optional)
DP-SG7 (optional)
Remove cap.
Notes
Notes

Kenwood DM-SG7 Specifications

System and Audio

system	Minidisc digital audio system
laser	Semiconductor laser
recording method	Field modulation overwrite method
audio compression	ATRAC (Adaptive TRansform Acoustic Coding)
playing rotation	Approx. 400 rpm ~ 900 rpm (CLV)
D/A conversion	1 Bit
oversampling	128 fs (5644.8 kHz)
A/D conversion method	Sigma-delta method
sampling frequency	44.1 kHz

Digital Audio Performance

frequency response (playback mode)	8 Hz ~ 20 kHz, ± 1 dB
signal to noise ratio (playback mode)	More than 92 dB
dynamic range (playback mode)	More than 90 dB
total harmonic distortion (1 kHz, playback mode)	Less than 0.007 %
channel separation (1 kHz, playback mode)	More than 85 dB
wow & flutter	Less than unmeasurable limit

Inputs and Outputs

analog input sensitivity / input impedance	300 mV / 70 kΩ
analog output level / load impedance	1.2 V / 3.2 kΩ
digital input, optical (wave length 660 nm)	- 15 dBm ~ - 21 dBm

General Specifications

power consumption	14 W
dimensions (width)	200 mm (7 - 7 / 8")
dimensions (height)	77 mm (3 - 1 / 16")
dimensions (depth)	247 mm (9 - 3 / 4")
weight (net)	2.1 kg (4.6 lb)