|

楼主 |
发表于 2010-12-7 18:06:02
|
显示全部楼层
GX-747个人认为非常漂亮,在民用级别上完全满足要求了,有待DBX版本的,可惜上次没有拍到,只好退而求其次,GX-646本人也非常喜欢。
( S/ R1 ?& Q n各项指标如下:
F/ y& Z+ }8 O+ _1 O9 B0 z& e
5 T+ U2 I& o# }3 M0 W0 vTrack System….4 Track 2 Channel Stereo System / s5 U* A/ H; W* j2 b
Reel Capacity....Up to 10” Reel
5 r9 K- T) U3 nHeads....
5 ~" x% ]! O E4 V/ Y dGX head for recording x 2; ) C9 w- U# D: x0 Y: J# v( \7 w
GX head for playback x 2;
1 a; Z; k5 t/ H& {( _! rErase head x 2 G0 @, h! @1 E- B }/ s( }
Motors..... T% P2 u, G6 w7 e" b
AC Servo motor for capstan drive x 1; 6 M3 R% m/ ^. a+ _) S" B- i
AC Eddy current motor for reel drive x 2 6 u1 _; B; m7 z' k
Tape Speed....
6 ]# g6 |% V) K19 cm/s +0.8% (7 ½ ips.); ( s: `* m8 ^; p* p; B. _' o3 I: S% G
9.5 cm/s +1.0% (3 ¾ ips.)
7 n' u) r6 M) m _9 MWow and Flutter....
5 r* J0 Z% o+ @" X* A M6 ~9 R) lLess than 0.03% WRMS at 19 cm/s;
2 z7 n! U) m# {9 g/ `' h+ kLess than 0.04%WRMS at 9.5 cm/s ) |- _8 O/ Y7 r, y
Tape Winding Time....75 sec. using 360 m (1,200 ft.) Tape
+ x. b2 H8 H! b2 a( eFrequency Response....
1 |% w; W6 C; p25 to 33,000 Hz +3 dB at 19 cm/s;
9 ?; F! @4 q1 d# g* E25 to 26,000 Hz +3 dB (0 VU); * J5 ^" U- R( O0 i) V- q+ `1 j' i9 u+ P
25 to 33,000 Hz +3 dB at 9.5 cm/s; & g) t! k2 H3 |, X3 M
25 to 15,000 Hz +3 dB (0 VU)
# P0 k' j9 n: e& \1 g/ PSignal to Noise Ratio....Better than 65 dB (19 cm/sec dbx switch: OFF) ; d1 w1 d6 V, M& |0 J2 a' f& z
Dynamic Range....128 dB (dbx switch: ON, 1 kHz, peak recording level) . O+ f9 Q: c9 a+ g
Harmonic Distortion....Less than 0.4% at 19 cm/s 5 {$ g$ C3 p( m, [5 j6 w
Input....
, Y# [" z, Q" p/ ^. J+ e0 NMIC: 0.25 mV; Required microphone impedance: 600 ohms; Y! B) D+ n, ^2 m% H) ~4 @; s: P, }
Line: 70 mV 5 N; J! Z' b5 t% `
Output..... r% h+ `4 S# C
Line: 410 mV; , U- `2 F0 F4 ~9 ?! P2 e# L& ~5 j
Phone: 1.3 mW
% \7 N2 l/ `) pPower Requirements....110V, 120V, 220V, 240V; 50/60 Hz switchable $ T d! P( c' z3 O1 d( X, I
Dimensions...440 (W) x 493 (H) x 256 (D) mm; (17.3 x 19.4 x 10.1 inches) , q6 {$ j" C# Q: X3 \8 d
Weight....23.2 kg (51.0 lbs) |
-
|