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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。
7 L# }) Q8 E8 Y( W& p' f各项指标如下:
4 m% e$ e' i; w. `* r. `- s, N" H1 r: @9 {( T7 ^+ v
Track System….4 Track 2 Channel Stereo System
' X ^1 z5 E. z' tReel Capacity....Up to 10” Reel
; f2 k: _4 P ~3 X$ |, pHeads....
v0 I. ~8 P; e0 q5 o' `GX head for recording x 2;
$ d# u: J; a5 S* F1 KGX head for playback x 2; 9 K' D7 Y+ |) B7 s0 \
Erase head x 2 % V: ^. t& s; f/ L+ ?; U3 d
Motors....9 ^' v0 P( l" ?- t2 X8 K5 `6 V/ q
AC Servo motor for capstan drive x 1;
2 L- G& S6 |5 {8 CAC Eddy current motor for reel drive x 2 & W. L" h1 [- \
Tape Speed....4 M1 G" B, S) |# c5 V0 Q; K
19 cm/s +0.8% (7 ½ ips.);
! A* ^6 d- B2 I8 B9.5 cm/s +1.0% (3 ¾ ips.)
% M% C' s" d" Q+ U/ a6 |+ QWow and Flutter....$ o5 K4 ?* u o3 f. K
Less than 0.03% WRMS at 19 cm/s;
2 A4 K$ J/ T$ c( p4 R* rLess than 0.04%WRMS at 9.5 cm/s $ E; d E, ~5 \2 i7 ~) N( Q* j! W2 p
Tape Winding Time....75 sec. using 360 m (1,200 ft.) Tape 0 V6 B6 f t" q2 e
Frequency Response....
Q* @, J- s' x8 R8 F8 }8 w6 r25 to 33,000 Hz +3 dB at 19 cm/s; / \2 D$ ]' a% g: D9 _
25 to 26,000 Hz +3 dB (0 VU);
1 V; G e- G+ o& v9 Y2 \25 to 33,000 Hz +3 dB at 9.5 cm/s;
9 z7 ]+ M, T* h* d" {9 D! j/ ~8 Y* r25 to 15,000 Hz +3 dB (0 VU) / V W) U7 U2 U, w/ H
Signal to Noise Ratio....Better than 65 dB (19 cm/sec dbx switch: OFF) # G/ q1 C9 o r/ e( L7 `
Dynamic Range....128 dB (dbx switch: ON, 1 kHz, peak recording level) $ n* J8 C$ h( i" f2 T
Harmonic Distortion....Less than 0.4% at 19 cm/s
( U! B4 N e* W* m3 j: l- D) f; EInput....6 n& @$ J3 h$ D( ^1 |4 o
MIC: 0.25 mV; Required microphone impedance: 600 ohms; 8 J4 @7 D @& l( {; W) _5 M+ J. a
Line: 70 mV A- z1 X& y1 b Q6 j
Output....5 P+ b. }: z$ }) W
Line: 410 mV;
3 D# C8 R- I! K) j8 L, @7 p2 FPhone: 1.3 mW
% m1 Q4 Z; T8 j& K$ @& K! A) zPower Requirements....110V, 120V, 220V, 240V; 50/60 Hz switchable 2 S$ M: f! X3 j. U; c* v. m/ n
Dimensions...440 (W) x 493 (H) x 256 (D) mm; (17.3 x 19.4 x 10.1 inches) 5 c& Q) F1 ?3 a5 A
Weight....23.2 kg (51.0 lbs) |
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