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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 1 L" B6 k( G Q; E
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英文电子说明书% R, V" S) o- {( ]# ^
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
* |( L* k' s6 g% W, l9 }# M- ? default settings. The subsequent settings remain stored in a Flash EPROM5 x' h5 S" b" ]. p/ B' \' W0 @( F |1 [5 i
after switching the unit off (unit contains no battery).
$ _; e0 c" W6 Z5 u" ~- |" | ^% u- ?6 `[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
& S$ T/ X7 U0 z3 A- |- a( j between microphone and line sensitivity setting ranges.
. F e+ Q: e. `+ K' {5 p. g6 o Mic: Range –40...+20 dBu# h/ M; @# D9 i3 `# x. s- [
Line: Range +14 dBu, +24 dBu5 M5 r5 ^/ l% J( g0 K' l& f
[3] Fine Gain Potentiometer for fine input sensitivity setting.
$ A& j* K: k: [! p* T( L0 {& e Range of additional gain: 0...+15 dB.
5 h! u& ]4 N' N, r Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
4 y/ ?! D8 Q$ {. c: S d$ I% D the dBu value of an analog input signal which causes a full-scale output of0 A' B9 }8 Y. @
the A/D converter.5 n5 v7 u" v5 D) k* [5 W
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
; C( W- `' J) v; t0 @ the peak level is therefore +16 dBu. The “Input dBu FS” rotary2 I. v4 `" `* w) \: j
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine0 x9 t7 f' |1 R! y
Gain” potentiometer [3] increases the gain by 8 dB.
' u7 P3 M7 U- j7 n[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.; j% d, { x3 U( `5 Q* O! C7 d
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
% Q& L. {* R% g8 P' _7 r8 V have more body; percussive instruments are less aggressive.
6 o! I6 _* z) A1 \% P E The group delay behaviour due to AC coupling of the stages is different in
: i+ i$ q9 l5 {7 Z2 L; L4 e tube amplifiers.
( |' ?5 Z' T4 R2 x4 e8 c* Q The “Bass Warmth” control allows to select the frequency range( }- W: O# @& h6 X2 n
(10...200 Hz) within which the effect is active.8 h9 B4 J9 q/ m
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.- C9 F- j2 Q! l* q. X3 q
Valve amps have a characteristic response, mid-frequency harmonic content
3 J% A( e* F) t. a4 c is emphasized.
' j ~% q- d, V& b) c[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
, K% z* w1 k6 B/ b: F4 d$ d1 O8 m, i The harmonics spectrum of a delicately overloaded valve amplifier is completely
& @7 U. d6 z/ ] different from an overloaded transistor stage.$ i* t. M, w5 ^, Z' \
The “Gain” control adjusts a gentle overload while the odd-harmonics content" a7 O7 m( z, P9 T
can be adjusted with the “Clip” control.
; H5 }1 d7 m' Q6 f% R* W[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
# w" E. X8 t! O- A' ` \ dBu FS.
9 K7 `% D( Q. r3 ~, ]: U[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the& k1 r' j9 r/ G8 w4 m' b4 W/ _
desired channel.
# A( y2 @, o" { The “VALVE” LED is on when the Valve Dignifier stage is active.
( `1 `4 R: N- T[9] INSERT INSERT function.
! n5 P: }- v- T! u, ^0 I, Y; \7 G First key pressure: INSERT POST VALVE, the Insert Send is tapped after
. u7 q+ X+ `( K3 ~8 ?# b the valve stage (display: “INS”); the Insert Return is directly fed to the Line
; L5 l6 S' G# T5 q! a) u and AES/EBU outputs.
7 w# Z2 ^+ v' m6 v8 N6 I Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
" `' O. ~2 \* B the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
' H0 m! a. j0 m% b0 o( M the valve dignifier stage to the Line and AES/EBU outputs.
3 r' O' @' z8 n" E+ V7 H Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
4 o& w4 L. f( Y: S stage (if active) to the Line and AES/EBU outputs (also the Insert Send output! I9 W3 Z. y$ ]
receives this signal; display: none).
3 |6 O; k* i w+ k" l' d. P# @( ]% Y Insert Send and Insert Return are electronically balanced and equipped with
8 f" y6 e9 B6 ~, a. T+ O XLR connectors.
1 S4 Y6 O9 J' h[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or" }; ~+ H C; u" X3 u# c5 I
ADAT digital interfaces. Each input channel can be switched to one of the9 N' r j, `' I8 A7 Y
channels 1...8 of the multichannel interface. If desired, also a mono mix is; D- ?- M; Q& Z6 B7 I* D
possible by selecting the same output channel for both input channels.
9 B+ \1 \9 V7 P- [: C[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
6 L; z+ i3 G- Z. R, J. `8 ? channel." R& K# n- Z: ?0 n5 E
Can be operated only if the input gain selector is in Mic position. The$ R5 x) v% O3 V8 D0 h' U
setting remains stored when switching over to a line gain setting.
Q* M6 c. g+ t[12] Activates the high pass filter on the microphone inputs of the desired channel.
1 d/ r8 d! S. g4 t' i3 Q+ I5 [ Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
5 B/ _5 Y3 e* e Can be operated only if the input gain selector is in Mic position. The
~3 t# M" q5 s) v# L setting remains stored when switching over to a line gain setting., e9 J% h7 t0 g; h
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.+ d: n% p$ Z% e! k; A( I
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:, A4 m+ |( R$ P
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
! Y) N/ o7 N2 m$ t4 ~8 ? Noise Shaping (display: “16NS”) can be selected.
8 s3 `! s* L' R! g' ][15] SYNC Selects the synchronization source for the unit. Possible selections are:
+ n" K: z( E, r, g2 M6 O INT 48 Internal quartz reference, 48 kHz8 [4 ?8 Q5 L. V8 a
INT 44 Internal quartz reference, 44.1 kHz
& p3 I3 W5 }4 K0 j* i3 G WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized), ]+ S8 m* E& C3 F7 ^' a) m4 ?
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
0 b2 U2 Q% H# G2 c& G A2 C) U AUTO Selects sources automatically in the sequence AES-WCLK-INT
* H6 [6 U3 Z) S9 K/ \ VAR Indication only, active if the external source frequency deviates from 48 or4 e( f6 R( @; U8 n* {
44.1 kHz for more than approx. ±3 %.
/ b3 ]; `) b' |$ Y[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –) ]: c6 r. N5 W- [) f& k2 X
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
- ~) B1 }* M) S( e, x5 [[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce9 c( N. U" o& k5 r( b# ~; ^: s n
the danger of overloading the A/D converter with short signal peaks (if
4 r6 u6 ?6 e" M5 P9 J active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,9 U+ u/ @8 ~- Q4 _( H4 d' K6 F o
allowing for approx. 6 dB reserve before hard clipping occurs
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