Accuphase C 2420

PRECISION STEREO CONTROL CENTER Thừa hưởng nhiều đặc tính kỹ thuật của các dòng sản phẩm cao cấp như C 3800 và 2820, C 2420 hứa hẹn đem đến cho các audiophile một sản phẩm giá trị bên lâu.

Thông số kỹ thuật

• AAVA volume control for high performance and outstanding sound
• Separate power transformers for left and right channels
• Selectable preamp gain
• Fully modular construction with separate left/right units for each amplifier stage
• Logic-controlled relays for shortest signal paths
• Independent phase selection for each input position
• Optional phono equalizer unit allows playback of analog records
• Side panels with elegant natural wood finish

● Frequency Response BALANCED/LINE INPUT: 3 - 200,000 Hz +0, -3.0 dB

20 - 20,000 Hz +0, -0.2 dB

　　　　　　　 AD INPUT (MM/40 dB, MC): 20 - 20,000 Hz ±0.2 dB

　　　　　　 AD INPUT (MC/30 dB): 20 - 20,000 Hz ±0.3 dB

● Total Harmonic Distortion (for all inputs) 　 0.005%

● Input Sensitivity,

　 Input Impedance

● Rated Output Voltage, BALANCED/LINE OUTPUT: 2 V 50 ohms

　 Output Impedance REC (with AD input): 252 mV 200 ohms

● Signal-to-Noise Ratio,

Input-converted noise

● Maximum Output Level BALANCED/LINE OUTPUT: 7.0 V

(0.005% THD, 20 - 20,000 Hz) RECORDER REC (with AD input): 6.0 V

● Maximum LINE Input Level BALANCED/LINE INPUT: 6.0 V

● Maximum AD Input Level MM [30/40 dB] INPUT: 310/96.5 mV

(1 kHz, 0.005% THD) MC [60/70 dB] INPUT: 9.5/3.2 mV 　

● Minimum Load BALANCED/LINE OUTPUT: 600 ohms

Impedance RECORDER REC: 10 kilohms

● Gain BALANCED/LINE INPUT → BALANCED/LINE OUTPUT: 18 dB

LINE INPUT → BALANCED/LINE OUTPUT: 18 dB

AD [MM: 30/40 dB] INPUT → BALANCED/LINE OUTPUT: 48/58 dB

AD [MM: 30/40 dB] INPUT → REC OUTPUT: 30/40 dB

AD [MC: 60/70 dB] INPUT → BALANCED/LINE OUTPUT: 78/88 dB

AD [MC: 60/70 dB] INPUT → REC OUTPUT: 60/70 dB

　　　　　　 * Gain selector can be set to 12/18/24 dB

● Tone Controls Turnover frequency and adjustment range

　 BASS: 300 Hz ±10 dB (50 Hz)

　 TREBLE: 3 kHz ±10 dB (20 kHz)

● Loudness Compensation +6 dB (100 Hz)

● Subsonic Filter 10 Hz: -18 dB/octave

● Attenuator -20 dB

● Headphone Jack Suitable impedance: 8 ohms or higher

Output Level: 2 V (40 ohms)

● Power Requirements AC 120 V/220 V/230 V 50/60 Hz (Voltage as indicated on rear panel)

● Power Consumption 34 watts

● Maximum Dimensions Width 465 mm (18-5/16")

Height 150 mm (5-7/8")

Depth 409 mm (16-1/8")

(Depth 414 mm with AD-2820 installed)

● Mass 19.2 kg (42.3 lbs), 20.1 kg (44.3 lbs) with AD-2820 installed

25.0 kg (55.1 lbs) in shipping carton