|
|

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。
: G; B! M- C5 S3 \ x% w5 n各项指标如下:6 i7 W: A$ W/ B" Q$ i( H
' H! g6 K2 J8 g7 y) x( `
Track System….4 Track 2 Channel Stereo System - E9 r' J/ Z8 P/ x8 g1 b9 N
Reel Capacity....Up to 10” Reel ( C: y) z* \! R
Heads....
" C* V( j; b$ g( hGX head for recording x 2; 9 b5 I2 u* Y/ h: X! h* r7 S1 J
GX head for playback x 2;
# @ ]4 Z: F1 J' A! r8 y+ z& ZErase head x 2 $ t5 w2 Y3 O+ Z$ G
Motors....
' {& t: @! j6 l2 g6 @- |- ?6 Y6 ^AC Servo motor for capstan drive x 1;
" h: ]5 i- {, |; t: s0 ?& y$ wAC Eddy current motor for reel drive x 2
7 {' o! }. u! E4 x( P% C# D" FTape Speed....' }7 p* o+ [. s! j9 k; E- p
19 cm/s +0.8% (7 ½ ips.); 5 c- I" M+ i8 \% V+ \) L( k
9.5 cm/s +1.0% (3 ¾ ips.) - }6 C' Y1 J0 d: ?7 q9 U
Wow and Flutter....; Y2 X- F, A" b. f
Less than 0.03% WRMS at 19 cm/s;
# j) _6 ^7 Z5 f" B0 F8 MLess than 0.04%WRMS at 9.5 cm/s ; k# T" n/ D0 r
Tape Winding Time....75 sec. using 360 m (1,200 ft.) Tape 0 b' d$ q4 |& z" G4 T# t1 `0 G4 u3 q
Frequency Response....( N; L0 r. V* B# v1 O* Y) n& i+ T
25 to 33,000 Hz +3 dB at 19 cm/s;
; n; W" }" m0 S25 to 26,000 Hz +3 dB (0 VU); * S. P6 \* Y" n# J$ [7 h# y* Z2 c% z
25 to 33,000 Hz +3 dB at 9.5 cm/s; # T8 c# E+ Z; ~
25 to 15,000 Hz +3 dB (0 VU)
. P1 |3 c S. y; f6 }( A% W8 W1 J+ ?Signal to Noise Ratio....Better than 65 dB (19 cm/sec dbx switch: OFF) 4 u9 {3 E$ r* g$ ^' s
Dynamic Range....128 dB (dbx switch: ON, 1 kHz, peak recording level) " ]3 M- T2 ^) v# [
Harmonic Distortion....Less than 0.4% at 19 cm/s
, v& \) z& m* }- l! bInput....2 Q$ O: L$ T6 G, z R
MIC: 0.25 mV; Required microphone impedance: 600 ohms;
& l+ j8 s- J* @$ O, U' oLine: 70 mV
7 r. d8 s+ `8 I4 i% b5 j+ QOutput....
9 i ^; @( q0 ALine: 410 mV; 7 W2 l' } e* m% j# H: S, Y2 h; M1 c
Phone: 1.3 mW 2 J/ o1 g$ Y& f; X# s% q
Power Requirements....110V, 120V, 220V, 240V; 50/60 Hz switchable 8 V4 M- J( i. W2 C) b
Dimensions...440 (W) x 493 (H) x 256 (D) mm; (17.3 x 19.4 x 10.1 inches) % j9 F. g1 N5 {
Weight....23.2 kg (51.0 lbs) |
-
|