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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。
( s9 w, a r. G各项指标如下:
, x# u- r; R' K" w& v
. m7 C& }% v% p j5 `4 o! ?! rTrack System….4 Track 2 Channel Stereo System
# r" G7 O) w' F0 Y% C' H0 fReel Capacity....Up to 10” Reel
! [9 c9 U# V/ m, @; Y- @0 \2 g" ?Heads..... M: g+ n' F$ k0 U: c! {# n2 p7 h
GX head for recording x 2; ' c* K' T8 b$ U! V
GX head for playback x 2; : x. M) Y- ~1 `- e
Erase head x 2 : j& j$ I! w1 f7 p2 ?. T7 G% o
Motors....
0 x9 R+ l* f8 V, u3 N6 V G- G& yAC Servo motor for capstan drive x 1;
5 p1 v: M& y* `; QAC Eddy current motor for reel drive x 2 : Y9 l) P3 }5 w) E& ?7 y# ` E
Tape Speed....9 J& L( d( x+ s3 r" |# G: ^
19 cm/s +0.8% (7 ½ ips.); 3 [% I# x& U' V1 e& e/ q
9.5 cm/s +1.0% (3 ¾ ips.) 9 V) S) e4 ^7 _9 o
Wow and Flutter....) G4 m2 l0 n" P2 t
Less than 0.03% WRMS at 19 cm/s; 3 `8 @ { t4 |0 ^
Less than 0.04%WRMS at 9.5 cm/s
0 I3 t. A0 U' `0 U$ {0 FTape Winding Time....75 sec. using 360 m (1,200 ft.) Tape
8 c3 v* b( Z- q% e, nFrequency Response....
`6 p- _- [6 H7 d& x25 to 33,000 Hz +3 dB at 19 cm/s;
' B8 n H5 x' F; Z+ J* a25 to 26,000 Hz +3 dB (0 VU);
4 O: a- l- h7 m7 G9 ]- D25 to 33,000 Hz +3 dB at 9.5 cm/s; 8 ]) j1 z5 C& E3 R6 |
25 to 15,000 Hz +3 dB (0 VU) ! U& P# R4 B3 N
Signal to Noise Ratio....Better than 65 dB (19 cm/sec dbx switch: OFF)
9 L& g. @; h/ I' C$ t( Y& U GDynamic Range....128 dB (dbx switch: ON, 1 kHz, peak recording level) ! W9 Q' V& b' y* I% }8 r
Harmonic Distortion....Less than 0.4% at 19 cm/s 7 Q5 @0 i4 O5 i* R) M: E
Input....6 _' P* D& a# Y8 k" C( C1 l9 y" _. I
MIC: 0.25 mV; Required microphone impedance: 600 ohms;
" _) X g- g# |3 ]6 Z; ? q! ^1 }Line: 70 mV 6 t( f$ d! p$ t/ e9 e, U
Output....- g5 X9 ?: D! k# _0 T+ N
Line: 410 mV; " f; x/ Y9 E" L
Phone: 1.3 mW
# L5 Q$ f. p# S5 O4 a7 R0 J+ L# x" ePower Requirements....110V, 120V, 220V, 240V; 50/60 Hz switchable
- E! J" I% P* K- W _Dimensions...440 (W) x 493 (H) x 256 (D) mm; (17.3 x 19.4 x 10.1 inches) + s3 r" ~$ T& ?4 p K
Weight....23.2 kg (51.0 lbs) |
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