31
RQT6085
Reference

AMPLIFIER SECTION

Power output
10% Total harmonic distortion
60
Hz–3
kHz, both channels driven
(Low channel) 60
W per channel (6
Ω)
3
kHz–16
kHz, both channels driven
(High channel) 50
W per channel (6
Ω)
Total Bi-Amp power 110
W per channel
Power output
10% Total harmonic distortion
1
kHz, both channels driven
(Low channel) 77
W per channel (6
Ω)
8
kHz, both channels driven
(High channel) 73
W per channel (6
Ω)
Total Bi-Amp power 150
W per channel
Input sensitivity
AUX 250
mV
Input Impedance
AUX 13.3
kΩ

AMPLIFIER SECTION

SC-AK490

Power output
10% Total harmonic distortion
60
Hz–3
kHz, both channels driven
(Low channel) 45
W per channel (6
Ω)
3
kHz–16
kHz, both channels driven
(High channel) 45
W per channel (6
Ω)
Total Bi-Amp power 90
W per channel
Power output
10% Total harmonic distortion
1
kHz, both channels driven
(Low channel) 56
W per channel (6
Ω)
8
kHz, both channels driven
(High channel) 54
W per channel (6
Ω)
Total Bi-Amp power 110
W per channel
Input sensitivity
AUX 250
mV
Input Impedance
AUX 13.3
kΩ

AMPLIFIER SECTION

SC-AK300
Power output
10% Total harmonic distortion
60
Hz–3
kHz, both channels driven
(Low channel) 45
W per channel (6
Ω)
3
kHz–16
kHz, both channels driven
(High channel) 45
W per channel (6
Ω)
Total Bi-Amp power 90
W per channel
Power output
10% Total harmonic distortion
1
kHz, both channels driven
(Low channel) 56
W per channel (6
Ω)
10
kHz, both channels driven
(High channel) 54
W per channel (6
Ω)
Total Bi-Amp power 110
W per channel
Input sensitivity
AUX 250
mV
Input Impedance
AUX 13.3
kΩ

AMPLIFIER SECTION

SC-AK200
Power output
10% Total harmonic distortion
60
Hz–3
kHz, both channels driven
(Low channel) 30
W per channel (6
Ω)
3
kHz-16
kHz, both channels driven
(High channel) 30
W per channel (6
Ω)
Total Bi-Amp power 60 W per channel
Power output
10% Total harmonic distortion
1
kHz, both channels driven
(Low channel) 42
W per channel (6
Ω)
10
kHz, both channels driven
(High channel) 38
W per channel (6
Ω)
Total Bi-Amp power 80 W per channel
Input sensitivity
AUX 250
mV
Input Impedance
AUX 13.3
kΩ
Specifications

SPEAKER SECTION

SB-AK300
Type 3 way speaker system
Speaker(s)
Woofer 12
cm (43/4˝) cone type
Tweeter 6
cm (23/8˝) cone type
Super tweeter Piezo type
Impedance
HIGH 6
Ω
LOW 6
Ω
Input power
HIGH 100
W (Music)
LOW 100
W (Music)
Output sound pressure level
85
dB/W (1.0
m)
Cross over frequency 3.5
kHz
Frequency range 45
Hz–22
kHz (–16
dB)
55
Hz–20
kHz (–10
dB)
Dimensions (WxHxD) 210 x 315 x 251
mm
(89/32˝ x 1213/32˝ x 923/32˝)
Mass 2.8
kg (6.3
lb.)
SPEAKER SECTION
Type 2 way speaker system
Speaker(s)
Woofer 12
cm (43/4˝) cone type
Tweeter 6
cm (23/8˝) cone type
Impedance
HIGH 6
Ω
LOW 6
Ω
Input power
HIGH 80
W (Music)
LOW 80
W (Music)
Output sound pressure level
85
dB/W (1.0 m)
Cross over frequency 3.5
kHz
Frequency range 45 Hz–22
kHz (–16 dB)
55
Hz–20
kHz (–10
dB)
Dimensions (WxHxD) 210 x 315 x 228
mm
(89/32˝ x 1213/32˝ x 831/32˝)
Mass 2.6
kg (5.7
lb.)

GENERAL

Power supply AC 120
V, 60
Hz
Power consumption (250 VA) 215
W
165
W
150
W
Standby Approx. 0.34
W
Dimensions (WxHxD) 250 x 315 x 345
mm
(927/32˝ x 1213/32˝ x 1319/32˝)
Mass
(For U.S.A.)
7.8 kg (17.2 lb.)
(For Canada) 7.5
kg (16.5 lb.)
7.4
kg (16.3 lb.)
6.9
kg (15.2 lb.)
Notes:
1. Specifications are subject to change
without notice.
Mass and dimensions are approximate.
2. Total harmonic distortion is measured by
the digital spectrum analyzer.
3. The labels “HIGH” and “LOW” on the rear
of the speakers refer to High frequency
and Low frequency.
SB-AK300
SB-AK200

FM TUNER SECTION

Frequency range
87.9 – 107.9
MHz (200
kHz steps)
87.5 – 108.0
MHz (100
kHz steps)
Sensitivity 2.5
µV (IHF)
S/N 26
dB 2.2
µV
Antenna terminal(s) 75
Ω (unbalanced)

AM TUNER SECTION

Frequency range
520 – 1710
kHz (10
kHz steps)
Sensitivity
S/N 20
dB (at 1000
kHz) 560
µV/m

CASSETTE DECK SECTION

Track system 4 track, 2 channel
Heads
Record/playback Solid permalloy head
Erasure Double gap ferrite head
Motor DC servo motor
Recording system AC bias 100
kHz
Erasing system AC erase 100
kHz
Tape speed 4.8
cm/s (17/8 ips)
Overall frequency response
(+3
dB, –6
dB at DECK OUT)
NORMAL (TYPE I) 35
Hz – 14
kHz
S/N 50
dB (A weighted)
Wow and flutter 0.18% (WRMS)
Fast forward and rewind time
Approx. 120 seconds with
C-60 cassette tape

CD SECTION

Sampling frequency 44.1
kHz
Decoding 16 bit linear
Beam source/wavelength
Semiconductor laser/780
nm
Number of channels Stereo
Frequency response
20
Hz–20
kHz (+1, –2
dB)
Wow and flutter Below measurable limit
Digital filter 8
fs
D/A converter MASH (1 bit DAC)
MP3 (
MP3 decode Base on MPEG 1 Layer 3
Bitrate 32
kbps–320
kbps
Sampling frequency
32
kHz, 44.1
kHz, 48
kHz

SPEAKER SECTION

Type 3 way speaker system
Speaker(s)
Woofer 12
cm (43/4˝) cone type
Tweeter 6
cm (23/8˝) cone type
Super tweeter Piezo type
Impedance
HIGH 6
Ω
LOW 6
Ω
Input power
HIGH 130
W (Music)
LOW 130
W (Music)
Output sound pressure level
85
dB/W (1.0
m)
Cross over frequency 3.5kHz
Frequency range 45
Hz–22
kHz (–16
dB)
55
Hz–20
kHz (–10
dB)
Dimensions (WxHxD) 210 x 315 x 251
mm
(89/32˝ x 1213/32˝ x 923/32˝)
Mass 2.8
kg (6.3
lb.)
SC-AK500 and SC-AK490 only)
SB-AK500
SC-AK500
SC-AK300
SC-AK200
SC-AK500
SC-AK300
SC-AK200
SC-AK500 SC-AK490
SC-AK500 SC-AK490