|
|

楼主 |
发表于 2012-5-20 00:04:04
|
显示全部楼层
本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 5 h" q1 T' L% D& |: c6 q
* P# W; P, j2 x I英文电子说明书- K! c2 p8 h9 m
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory. G+ L# L6 a4 @3 S$ g
default settings. The subsequent settings remain stored in a Flash EPROM
$ f: U/ f1 q! A' o) `8 } after switching the unit off (unit contains no battery).- N4 G; O" [6 H/ X
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
" M& `( k, [& h5 a between microphone and line sensitivity setting ranges.+ @0 c* V/ B% O1 n$ z; F
Mic: Range –40...+20 dBu
$ P k: B5 x7 b2 k Line: Range +14 dBu, +24 dBu' k" f% B8 i8 }0 ?0 f4 y4 r
[3] Fine Gain Potentiometer for fine input sensitivity setting.
/ |6 i6 F( a! ^3 }6 c% x5 g! f* m Range of additional gain: 0...+15 dB.# h" D; `; {; K. R5 V
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents4 U, d# G6 g) E9 {7 ^
the dBu value of an analog input signal which causes a full-scale output of2 O8 `) f; I: f! `1 g
the A/D converter.* k$ B' m, ]: B) O- ~8 ^% S- Y
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;8 H2 |4 h& `& f& Z: z6 J3 n, c) B7 ?
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
5 E/ m: r9 p2 ?- W6 C switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine2 }- @' d/ ]* [' E* Y
Gain” potentiometer [3] increases the gain by 8 dB.2 Q: n0 @1 ~% C }* G
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active./ p; s# C4 c9 p7 @
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
+ Y. p9 K. h0 p2 a have more body; percussive instruments are less aggressive.+ N) H1 T1 R; `# c2 Y. X) q
The group delay behaviour due to AC coupling of the stages is different in
9 X+ X" R9 ?: U8 o; `- I tube amplifiers.0 y6 r ~/ `# r
The “Bass Warmth” control allows to select the frequency range0 e, c8 C k3 m% A0 _
(10...200 Hz) within which the effect is active.# e& c( a5 C9 x6 n
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
! y9 v& A3 `8 Q7 d- z Valve amps have a characteristic response, mid-frequency harmonic content
& t/ Q n T3 U" ?0 I7 n4 r is emphasized.
& s7 J- o; b( K1 e. e4 A: U+ e[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
: ~2 [: `, @, j& J The harmonics spectrum of a delicately overloaded valve amplifier is completely
: x; o( w' i( s different from an overloaded transistor stage.$ A; T; K9 U5 R, K5 v
The “Gain” control adjusts a gentle overload while the odd-harmonics content
% Y" O& |: w' A: I' E can be adjusted with the “Clip” control.' n3 h0 S$ b$ }) u+ ?6 y h
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...241 J2 n r. J* s. E
dBu FS.
. e1 G' z/ u3 S+ e3 \[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the, I! F* Z% V% L, s/ K% n: c/ Y
desired channel.
. S5 K1 y. E' {/ J: a The “VALVE” LED is on when the Valve Dignifier stage is active.
1 Y7 P4 ~8 u8 E/ {[9] INSERT INSERT function.
: e: S1 i; p) B, [6 H First key pressure: INSERT POST VALVE, the Insert Send is tapped after
0 T& Q5 b, h* M the valve stage (display: “INS”); the Insert Return is directly fed to the Line7 ~8 {# |6 q8 H6 s9 N( u* ?. w
and AES/EBU outputs.& y# m( t5 x( O2 n! N
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before/ }4 S. s# \7 Q- t/ Y
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
$ B( y4 W% Q. A$ T+ L the valve dignifier stage to the Line and AES/EBU outputs.
. m6 @2 K# k8 `# s7 ]; K Third pressure: INSERT OFF, the input signal is fed via the valve dignifier4 a' t& |0 {; [" y9 V: _2 d
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output6 r5 R2 |% ^( E' \$ V
receives this signal; display: none).
& z: {; \4 @/ I$ v. ^% c# p Insert Send and Insert Return are electronically balanced and equipped with; v2 x$ L1 M- f2 l8 M- U& F
XLR connectors.
, w1 {3 Q/ E" E+ c4 x[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
5 A" i. I9 y' W( P: ` ADAT digital interfaces. Each input channel can be switched to one of the
0 B4 E/ r, U: h& {, N7 W% \) P8 b channels 1...8 of the multichannel interface. If desired, also a mono mix is
% \ G1 o+ P3 j1 e+ @& n possible by selecting the same output channel for both input channels.
9 E: j; N3 r8 u) F) r1 j, T4 W+ O[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone$ y" }3 r& h4 u. S
channel.+ v6 [' j, A, l. r, h9 u* Q/ Y+ r
Can be operated only if the input gain selector is in Mic position. The1 s. H8 P' w; @- `
setting remains stored when switching over to a line gain setting.3 o6 D% k1 N# a. C5 {! t J
[12] Activates the high pass filter on the microphone inputs of the desired channel.7 J$ h& k( Q `. H. M; j4 W
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
; Y4 T% s0 P' E3 l( p& g1 @ Can be operated only if the input gain selector is in Mic position. The2 p5 y% \; V. C( x- Z5 m N+ m
setting remains stored when switching over to a line gain setting.
! R6 f/ o# w! D k[13] Ø Toggle key to activate the phase reverse switch of the desired channel.; k) Z" i1 Q' J, j
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
! P, x K- N, g) ]. J) Q( _. q$ E “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
/ J1 p6 F, J/ _3 y& n Noise Shaping (display: “16NS”) can be selected.( u, _; U: \$ F
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
% M" _1 O9 y' L( c INT 48 Internal quartz reference, 48 kHz$ Y/ U0 W8 P# d! f9 F
INT 44 Internal quartz reference, 44.1 kHz2 B$ H2 A9 k5 u3 Z( I& w
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
" \( M- [5 h; U& t& H3 O: ? AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)9 b8 J& _# V6 O( H; B& Z; i
AUTO Selects sources automatically in the sequence AES-WCLK-INT
- e# ?, u! S0 n( ] VAR Indication only, active if the external source frequency deviates from 48 or" v0 f' d2 z+ d+ g
44.1 kHz for more than approx. ±3 %.
! c8 {7 v6 u( W[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –: I! i/ j$ c T* f' V! o6 @
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
, K% t1 V6 L' v2 K2 }0 T* M[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
$ r; V( K) w! g7 o5 u$ } the danger of overloading the A/D converter with short signal peaks (if
% \7 M: j1 ^' L* `; | active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,+ W1 q1 i( h+ Y/ j& M
allowing for approx. 6 dB reserve before hard clipping occurs
. ^; X! z$ P( Z
- l S9 V! m* p |
|