Kenwood DM-SG7 User Manual

DM-SG7(EN)
24
The input jacks connected with audio cords ac-
cept analog signals. This unit records the analog
signal from the REC IN jacks by converting it into
digital signal. (This recording is simply referred to
as analog recording.)
Recording (analog input)
Preparation
1
Set the amplifier’s input selector to the source to be recorded.
¶ Open the write protect tab of the
Mini Disc to make it recordable.
9
¶ Load the Mini Disc.
¶ Check the remaining recording time.
º
Analog recording
3
Select “AUTO” or “MANUAL”.
4
Adjust the recording level.
1 Play the source to be recorded.
2 Press the ¶ key.
3 Adjust the recording level.
2
Select “ANALOG” or “MONO”.
Each press switches the mode.
1 goes off (AUTO) : Track numbers are added au-
tomatically.
∞
2 MANUAL : Track numbers are added
manually.
∞
REC
INPUT
AUTO/
MANU.
1¡
rec
level
To decrease level To increase level
Main unit
( − dB)
 0
01
R
L
∞
3 0130
10
5
DIGITAL 1 2
Each press switches the mode.
1 ANALOG : Analog “stereo” mode.
2 DIGITAL 1 :
3 DIGITAL 2 :
4 MONO : Analog “mono long-time” mode.
¶ Adjust so that the 0 dB segments of the level meter light
occasionally.
¶ Decrease the level if the red segments of the peak level
meter light.
¶ The recording level can be adjusted with the 1 and ¡
keys of the remote control unit.
MANUAL
( − dB)
 A
TT :
-
1
2
dB
R
L
∞
3 0130
10
5
0dBLevel value
goes off
( − dB)
 0
01
R
L
∞
3 0130
10
5
MANUAL
Extinguished in “AUTO” mode, lit in “MANUAL” mode.
: Keys and control used in the operations de-
scribed on this page.
¶ When the ¶ key is pressed, the recording automatically
is paused.
Goes off when “MONO” is selected.
¶ When “MONO” is selected, the sound of the input
source is recorded with mixing of left and right channel.
Recording is possible for about twice the time of a
stereo recording.

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)