|
|

楼主 |
发表于 2012-5-21 23:23:18
|
显示全部楼层
本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 / A8 n: v1 D/ V: {6 ?
# H+ I6 H% i% H+ S1 y" @% O6 B) r/ W* G+ l
英文电子说明书
% ?- @/ o2 D- C. t[1] POWER Switches the unit on or off. The unit is ready to operate with the factory T3 L% N6 E! Z/ k' P) q( p1 F
default settings. The subsequent settings remain stored in a Flash EPROM' p. r' M8 P* `0 j2 e4 K
after switching the unit off (unit contains no battery).
! K% D s8 `. E6 o+ _" C[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
# U" x( }" N/ H% S4 z+ E# p between microphone and line sensitivity setting ranges.
9 q( ?) V0 W" Y Mic: Range –40...+20 dBu& E' f& O! e# P7 u. I& l
Line: Range +14 dBu, +24 dBu# b/ u1 Y9 N- a6 ]/ D
[3] Fine Gain Potentiometer for fine input sensitivity setting.6 R2 F: q& r9 b+ d
Range of additional gain: 0...+15 dB. Q9 ]- K j3 H& ]( l
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents$ Y7 p7 d2 u3 e. Q) w
the dBu value of an analog input signal which causes a full-scale output of
: L% a8 a6 X) c the A/D converter.
4 [/ O; T4 F/ c5 R7 {% F Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
, f+ d- o+ A+ X6 Y( p+ O O# H, N the peak level is therefore +16 dBu. The “Input dBu FS” rotary! K) T2 b7 h0 v+ A
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine2 J: \) H8 G. _: y7 n
Gain” potentiometer [3] increases the gain by 8 dB.) X$ W G" R% ^$ S5 T3 y+ ~
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.! Z, w+ ~. Z4 T, Q
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
' W' I+ W$ f u; L+ m7 J have more body; percussive instruments are less aggressive. C2 r2 a C# `$ [
The group delay behaviour due to AC coupling of the stages is different in
9 i) O5 T( m B% H% C! ~/ w tube amplifiers.# K, X* ?& t. u5 ?; {( I' u
The “Bass Warmth” control allows to select the frequency range; \% C( s: P0 h
(10...200 Hz) within which the effect is active.7 {0 e4 J, A/ l w& G
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments. \* A( {: ~4 A$ ? Y
Valve amps have a characteristic response, mid-frequency harmonic content
/ A% l8 R, Y- r5 s$ ]0 J9 u is emphasized.
, v& L6 k; @$ h! u6 [( T* A! m2 d[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer./ U5 }) M: i' O
The harmonics spectrum of a delicately overloaded valve amplifier is completely
' l. _' N) H" x7 o6 Y5 z different from an overloaded transistor stage.0 S- U+ B3 t6 r7 B9 O* }& M
The “Gain” control adjusts a gentle overload while the odd-harmonics content
3 f1 z5 @# Z9 s2 R& f2 g$ s can be adjusted with the “Clip” control.: F! ^3 n( u, b4 e: ^
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24* I- l; U: R, l7 @+ O; F; H
dBu FS.
e8 G5 `' ~3 R8 M' b2 O[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the& m+ P0 j3 M: \# s8 ^. g/ D
desired channel.5 a7 Z9 `- _0 C6 ^& }! y2 A
The “VALVE” LED is on when the Valve Dignifier stage is active.
9 \: ]1 \8 Z5 _0 c# l$ j# W7 [[9] INSERT INSERT function.3 A2 Y/ K) ?3 T- X: U
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
2 c) ~- h X' O8 a- y& p the valve stage (display: “INS”); the Insert Return is directly fed to the Line# d% K; I! S; L8 Y
and AES/EBU outputs.
t5 c; e: i( a* Y" z) F Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before; d9 x" d4 H& x) F
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
/ g0 P; N! n! w: i the valve dignifier stage to the Line and AES/EBU outputs.
+ B4 U3 } s4 e+ ~7 Z2 N Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
) k }8 i- P0 X3 X3 x6 `8 ?( p stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
, g e( E+ q( V U. t, t# \ receives this signal; display: none).8 |% ]1 m5 T7 [( z
Insert Send and Insert Return are electronically balanced and equipped with8 U M7 y m2 \6 b9 Q# b& o/ `
XLR connectors.+ n+ q5 s& Z- m# c* m4 D( T# ?
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or" N& h9 Y c1 D! t. A
ADAT digital interfaces. Each input channel can be switched to one of the
4 t+ c, }0 V6 C* I. b- Q; ~ channels 1...8 of the multichannel interface. If desired, also a mono mix is/ `. Z( N8 ?3 K2 K6 ~! f% F/ f
possible by selecting the same output channel for both input channels.6 L: T/ k3 @/ d8 o( F
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
9 ]+ |' l- w% B/ f/ W channel.
7 q, L2 w, F- z2 G Can be operated only if the input gain selector is in Mic position. The
# f6 c- v: d+ Y! r setting remains stored when switching over to a line gain setting., W: N7 C1 l6 S( r) _' h
[12] Activates the high pass filter on the microphone inputs of the desired channel.% V* f2 {. M; \. ~
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.' h3 d; h) h) z0 N) M
Can be operated only if the input gain selector is in Mic position. The1 {/ N3 W2 v( d8 P, k
setting remains stored when switching over to a line gain setting.# D9 a9 w; D5 N; h
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.- p& F) k, A7 q9 A) z8 n& E3 K
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
}, x1 X3 Z/ m& c* y “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with Q/ S A v" x4 V, z) H8 U
Noise Shaping (display: “16NS”) can be selected.) j7 y4 @: C# T4 X2 B5 G/ e
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
6 U! u3 Y& Q! I1 i6 Z6 m1 b* ^ INT 48 Internal quartz reference, 48 kHz8 [3 n. X, B) V8 i
INT 44 Internal quartz reference, 44.1 kHz5 q9 f- W7 I4 I5 Z& G6 r
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)+ J, Q5 R- b2 A6 x+ K
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)* O+ u' J& D/ a2 a5 B! K" w
AUTO Selects sources automatically in the sequence AES-WCLK-INT) _1 z9 A% v3 h, [* K* {8 y
VAR Indication only, active if the external source frequency deviates from 48 or
$ g6 }) H9 c: S' v5 {2 P 44.1 kHz for more than approx. ±3 %.
, X; E- O# L7 p3 R6 M! R[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
7 | z4 b% H8 _1 T6 z, u either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.: [3 v2 \$ s' z l' B9 m
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
+ a) B5 C7 G; D7 X0 @! U the danger of overloading the A/D converter with short signal peaks (if+ W; R3 V8 U& `- K% X
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,9 j) D- P' _/ O
allowing for approx. 6 dB reserve before hard clipping occurs
* Y! N; c5 \! \+ w; z4 a
; M2 h0 |' F7 E3 U' H, e- q 2 t. N0 ~# d$ j8 g# G9 r$ b
|
|