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发表于 2012-5-21 23:23:18
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本帖最后由 dan3963101 于 2012-5-20 00:12 编辑
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英文电子说明书
7 e" _! h$ Y+ v* y8 u' @& H[1] POWER Switches the unit on or off. The unit is ready to operate with the factory* R: G/ l; @$ ^5 I; t
default settings. The subsequent settings remain stored in a Flash EPROM
6 F" R6 b# z% v4 B. }+ ~ after switching the unit off (unit contains no battery).) G4 e( R9 V8 n- L! b5 p2 o% L
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
$ \6 I5 S# e6 W# A/ ^ between microphone and line sensitivity setting ranges.6 E- J# ?6 [. N* _! g( o( g1 ?
Mic: Range –40...+20 dBu
% x) ?: z3 C' Y* e& \7 z Line: Range +14 dBu, +24 dBu* C4 Y, N' [; ^' x& O6 B
[3] Fine Gain Potentiometer for fine input sensitivity setting.9 K5 Y7 J8 I! W+ G1 _" ?6 O
Range of additional gain: 0...+15 dB.4 }7 l6 F. F) o- J6 Y9 g$ q
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents9 p3 f6 ^8 x9 y
the dBu value of an analog input signal which causes a full-scale output of
4 C1 {+ L' l& g1 o the A/D converter.4 P. l. }, Q7 V
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;) L# p& o6 V5 e3 a
the peak level is therefore +16 dBu. The “Input dBu FS” rotary; _0 g4 B7 h; Q, F, }
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
7 I5 J6 q7 ?& \/ W, i Gain” potentiometer [3] increases the gain by 8 dB.& x2 A' p0 [! O
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
: ]5 g9 x: p* F8 K, |; x$ k/ b[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
3 V& P- o# V& m2 h+ `4 _ have more body; percussive instruments are less aggressive.
* Q$ w( z2 X! u' V" O The group delay behaviour due to AC coupling of the stages is different in/ v% u: v( D$ V; _. N6 S
tube amplifiers.: n% Z, \- x6 G Z. D
The “Bass Warmth” control allows to select the frequency range
6 T" Y. m. F- c4 }1 {8 g& a (10...200 Hz) within which the effect is active.8 W" ?3 G6 n2 T* j. k& _5 P: _. y; |' k
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.! g# }% h! i" D9 F5 T* v5 S
Valve amps have a characteristic response, mid-frequency harmonic content8 x" B* `5 L l3 c; p
is emphasized.; `0 c" X: v* H" A
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.4 e+ q' R$ M7 C
The harmonics spectrum of a delicately overloaded valve amplifier is completely2 G: g: r$ ?: S# b) l$ R
different from an overloaded transistor stage.
9 R+ w$ |( u5 g8 |; J! c The “Gain” control adjusts a gentle overload while the odd-harmonics content. U6 R, j! |% ^+ w
can be adjusted with the “Clip” control.
+ `* { Q" |- R[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24; G3 [8 [& Q! \! I1 {
dBu FS.% F- ?& J8 }# \8 C* v. }7 o
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the" l+ v5 W/ m' L% s( g$ j. I
desired channel.
1 z. I% j8 y/ n0 x) h! I3 Y4 e% O The “VALVE” LED is on when the Valve Dignifier stage is active.! U8 j( I" w8 O# M
[9] INSERT INSERT function., |8 u! X# J5 l% R
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
# P. D) _ _' j4 x/ ^# I the valve stage (display: “INS”); the Insert Return is directly fed to the Line
* Y" j2 y4 m" k1 u6 b/ n and AES/EBU outputs./ P& l5 m1 |8 q; m, o
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before7 N) Y6 z& A% ?* T$ y, f
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
7 Q2 a6 z7 V7 @8 H: n" S& a9 C the valve dignifier stage to the Line and AES/EBU outputs.7 }+ Q' r. H% h
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier, d& @; ^: ]) ]% f/ W
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
, Y7 C: M5 g+ }( K) K" E- F6 j1 H receives this signal; display: none).
/ i3 x4 D* G( i8 k: b' S$ q Insert Send and Insert Return are electronically balanced and equipped with, B/ M8 Y3 T1 J0 W& e5 u
XLR connectors.7 ^" H5 J: h) K& @
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or0 d# m9 @: E$ V* Q2 D7 c2 ?* s
ADAT digital interfaces. Each input channel can be switched to one of the
: |0 Y4 U, @- e5 K m l channels 1...8 of the multichannel interface. If desired, also a mono mix is
) t* U2 p8 _5 @# l6 p" S possible by selecting the same output channel for both input channels.
) o7 N* l) M2 }2 O4 L3 ~0 U[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
. |0 T; h0 Z: O9 `1 A8 x* @ channel.
* H1 x: F, l& l6 O1 K. q, S Can be operated only if the input gain selector is in Mic position. The
& [* w0 m6 n+ J setting remains stored when switching over to a line gain setting.' C' I- j) D) B4 U) R
[12] Activates the high pass filter on the microphone inputs of the desired channel.
5 A# A; j. g' `7 n: @7 E Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.+ H) A4 H; P2 w4 Q5 `( a
Can be operated only if the input gain selector is in Mic position. The
# I/ ~! E& A8 a. T setting remains stored when switching over to a line gain setting.
, Y1 F( D. M3 ^! x5 z2 V8 ^[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
; @. J/ ~7 D3 h; Q) t1 U- f- W9 @* P[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:* Q( x% B N# c
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
$ @8 S' E! R# [* R) N1 F) a Noise Shaping (display: “16NS”) can be selected.
" f. j% v8 k! j N/ |[15] SYNC Selects the synchronization source for the unit. Possible selections are:
& {3 v/ u/ T) C, d. e INT 48 Internal quartz reference, 48 kHz& g- Y" Q) @+ n" Z
INT 44 Internal quartz reference, 44.1 kHz- o+ K1 }2 N% N9 S
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
- x( G$ r0 z# D, [- ?$ {% L AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
3 ]- u) ?6 w, }5 V: v# e! u AUTO Selects sources automatically in the sequence AES-WCLK-INT/ n( W# Q5 k$ f9 }2 A% n$ P5 c
VAR Indication only, active if the external source frequency deviates from 48 or/ ]: I5 X) F' `5 q2 [
44.1 kHz for more than approx. ±3 %.
* _: O7 m; I/ n2 h: n[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
\0 P9 @ o0 v' @ either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
- m; i2 l5 w9 i+ s. `[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
% a/ u( @8 M9 c the danger of overloading the A/D converter with short signal peaks (if
r2 g& [: z& \; } active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
( I6 N( {# `0 X( A allowing for approx. 6 dB reserve before hard clipping occurs
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