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发表于 2010-12-7 18:06:02
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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。; p; g" A; c) Q: z4 ?
各项指标如下:
& u5 f; H! W, P- [$ L5 ^8 {+ e
. d) K# ?+ I/ U/ S2 w. z+ lTrack System….4 Track 2 Channel Stereo System
* ?9 R+ C' ?& |9 Q$ T4 t+ `7 jReel Capacity....Up to 10” Reel & k4 s9 y4 i; V; V* U/ i
Heads....& s+ I0 ]; e0 l+ \! K
GX head for recording x 2; 5 C7 `+ h. p1 ]) |5 }* j
GX head for playback x 2; 4 \$ c- |# F, S* o* Z+ b" Q @
Erase head x 2 $ @1 l. `/ o/ H8 j& S$ v) O5 j @
Motors....- M; S' Q: m; ?; p0 A
AC Servo motor for capstan drive x 1;
- l9 x! W' B+ C1 cAC Eddy current motor for reel drive x 2
- ]7 t: n; {) Z" G. V' `2 |8 XTape Speed....
" i2 b9 b# L4 M# Y19 cm/s +0.8% (7 ½ ips.); * ]& W; n8 W! d& R3 n `) u+ z1 f
9.5 cm/s +1.0% (3 ¾ ips.)
/ J- P n4 x) SWow and Flutter....$ O) Q2 [* @7 v. h. d# V. g
Less than 0.03% WRMS at 19 cm/s;
, V- ^/ {( S6 N7 a6 lLess than 0.04%WRMS at 9.5 cm/s * M9 n& u. @+ |1 I2 h
Tape Winding Time....75 sec. using 360 m (1,200 ft.) Tape 0 E2 G* M+ l4 w2 M
Frequency Response....% o0 J# W( P: u7 N# B% w0 G
25 to 33,000 Hz +3 dB at 19 cm/s; 6 T5 W8 y$ ~9 k& b) h: U! W
25 to 26,000 Hz +3 dB (0 VU); ) H( c: ~6 @8 T! t# ?( Z" I. z2 c
25 to 33,000 Hz +3 dB at 9.5 cm/s;
# E" x, t* _7 V" Z3 u25 to 15,000 Hz +3 dB (0 VU) / |8 N4 H* p. J4 u% O2 B
Signal to Noise Ratio....Better than 65 dB (19 cm/sec dbx switch: OFF) % x4 Z- r) Y5 Y& o! y2 r; ?
Dynamic Range....128 dB (dbx switch: ON, 1 kHz, peak recording level) 5 n* ^/ N. e: `
Harmonic Distortion....Less than 0.4% at 19 cm/s # ?6 x4 o6 ^6 P) [, I
Input....
0 e9 E5 f; r+ W# }& NMIC: 0.25 mV; Required microphone impedance: 600 ohms;
: h1 C0 y* `: m6 O7 S( [9 x% kLine: 70 mV + c$ J; Q( `" k/ P! N
Output....
* Z: A7 i. b8 l: o& h, q, e) eLine: 410 mV; ; }" p4 i: Z2 \0 B5 J& C# X9 {
Phone: 1.3 mW
% Y: J1 F( ]. K: Q8 Q GPower Requirements....110V, 120V, 220V, 240V; 50/60 Hz switchable
& ?8 S' c6 u! g8 s ^% Q; L9 RDimensions...440 (W) x 493 (H) x 256 (D) mm; (17.3 x 19.4 x 10.1 inches) . o+ X% ]% {4 i( \+ p, ^& }$ O
Weight....23.2 kg (51.0 lbs) |
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