Évaluations - 1, GPA: 3
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Facilité d'utilisation
$ Playing discs The display is wrong or play won’t start. The total number of tracks displayed differs each time the same disc is inserted. Unusual sound is heard. CD-RW cannot be read. “VBR–” is displayed instead of the remaining play time. “TAKE OUT/DISC” appears on the display. The disc may be upside down. 8 Wipe the disc. Replace the disc if it is scratched, warped, or non-standard. Condensation may have formed inside the unit due to a sudden change in temperature. Wait for about an hour for it to clear and try again. The disc may be scratched, or its data may be defective. Replace the disc. The disc was incompletely formatted. Use the recording equipment to fully format the disc before recording. The unit cannot display the remaining play time for variable bit rate (VBR) tracks. There is a problem with the disc mechanism. (A power failure may have occurred.) The tray will open automatically. Remove the disc from the tray, and after ensuring there is no disc in the tray, close it. The unit will make the disc changing noises for a few moments and then it should operate normally. Remote control Remote control doesn’t work. Check that the batteries are inserted correctly. 4Replace the batteries if they are worn. Maintenance If the surfaces are dirty For a cleaner, crisper sound To clean this unit, wipe with a soft, dry cloth. Clean the heads regularly to assure good quality playback and 18 • Never use alcohol, paint thinner or benzene to clean this unit. recording. • Before using a chemically treated cloth, read the instructions that Use a cleaning tape (not included). came with the cloth carefully. RQT7330 AK523 : 267 W AK523 : 267 W Specifications AMPLIFIER SECTION AK520 Power output THD 10%, both channels driven 60 Hz–3 kHz (Low channel) 55 W per channel (6 .) 3 kHz–16 kHz (High channel) 55 W per channel (6 .) 40 Hz–100 Hz (Subwoofer channel) 140 W (8 .) Total power 360 W (Total) Power output THD 10%, both channels driven 1kHz (Low channel) 65 W per channel (6 .) 10 kHz (High channel) 65 W per channel (6 .) 80 Hz (Subwoofer channel) 160 W (8 .) Total power 420 W (Total) Input sensitivity AUX 250 mV Input Impedance AUX 13.3 k. AMPLIFIER SECTION AK523 Power output THD 10%, both channels driven 60 Hz–3kHz (Low channel) 50 W per channel (6 .) 3kHz–16 kHz (High channel) 50 W per channel (6 .) 40 Hz–100 Hz (Subwoofer channel) 140 W (8 .) Total power 340 W (Total) Power output THD 10%, both channels driven 1kHz (Low channel) 60 W per channel (6 .) 10 kHz (High channel) 60 W per channel (6 .) 80 Hz (Subwoofer channel) 160 W (8 .) Total power 400 W (Total) Input sensitivity AUX 250 mV Input Impedance AUX 13.3 k. AMPLIFIER SECTION AK320 Power output THD 10%, both channels driven 60 Hz–3 kHz (Low channel) 58 W per channel (6 .) 3 kHz–16 kHz (High channel) 58 W per channel (6 .) Total Bi-Amp power 116 W per channel Power output THD 10%, both channels driven 1kHz (Low channel) 75 W per channel (6 .) 10 kHz (High channel) 75 W per channel (6 .) Total Bi-Amp power 150 W per channel Input sensitivity AUX 250 mV Input Impedance AUX 13.3 k. AMPLIFIER SECTION AK323 Power output THD 10%, both channels driven 60 Hz–3kHz (Low channel) 54 W per channel (6 .) 3kHz–16 kHz (High channel) 54 W per channel (6 .) Total Bi-Amp power 108 W per channel Power output THD 10%, both channels driven 1kHz (Low channel) 70 W per channel (6 .) 10 kHz (High channel) 70 W per channel (6 .) Total Bi-Amp power 140 W per channel Input sensitivity AUX 250 mV Input Impedance AUX 13.3 k. FM TUNER SECTION Frequency range 87.9–107.9 MHz (200 kHz steps) 87.5–108.0 MHz (100 kHz steps) Sensitivity 2.5 OV (IHF) S/N 26 dB 2.2 OV Antenna terminal(s) 75 . (unbalanced) AM TUNER SECTION Frequency range 520–1710 kHz (10 kHz steps) Sensitivity S/N 20 dB (at 1000 kHz) 560 OV/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 Bit rate 32 kbps–320kbps Sampling frequency 32kHz, 44.1kHz, 48kHz SPEAKER SECTION Front speakers SB-AK520 AK520 AK523 Type 3 way, 3 speaker system Speaker(s) Woofer 16 cm (61/2.) cone type Tweeter 6 cm (23/8.) cone type Super tweeter 2.5 cm (1.) Piezo type Impedance HIGH 6 . LOW 6 . Input power (IEC) HIGH 65 W (Max) LOW 65 W (Max) Output sound pressure level 83 dB/W (1.0 m) Cross over frequency 2.6 kHz, 10 kHz Frequency range 37 Hz–23 kHz (–16 dB) 44 Hz–22 kHz (–10 dB) Dimens...