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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 4 y: }( m. n! X1 `5 V3 D. c5 G
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( ^! c2 @: D3 f* W1 X英文电子说明书
: H1 E" o: b# B* F7 X' t[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
9 b# u2 A5 {' G. Z6 O6 w8 S! H+ m default settings. The subsequent settings remain stored in a Flash EPROM
0 L; D, u$ J9 y& f1 k: e after switching the unit off (unit contains no battery).+ z( u1 B2 ]0 O1 N1 k1 s H
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
' k# \' d0 P% X1 s between microphone and line sensitivity setting ranges.
* ^9 y7 E d/ u) e7 Z/ b# u* S Mic: Range –40...+20 dBu
+ t4 m. |+ ]( d/ ^$ e Line: Range +14 dBu, +24 dBu
7 `- n; ]5 h5 G9 c; D9 m+ w[3] Fine Gain Potentiometer for fine input sensitivity setting.
' [/ k, \1 A4 j Range of additional gain: 0...+15 dB.
5 x# g; {5 _4 U" K6 [ Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
! R* ^+ E0 R, @ the dBu value of an analog input signal which causes a full-scale output of8 o# }1 l: h7 u# E7 D+ V) P! c1 k
the A/D converter.' q6 q9 g- F: v4 l9 O
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom; U5 F2 C& l/ o6 r& o0 w8 ]
the peak level is therefore +16 dBu. The “Input dBu FS” rotary, k7 y0 Q/ l T: M' B
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine4 b9 j; Q7 ~ C1 j
Gain” potentiometer [3] increases the gain by 8 dB.
. S. j; @1 a" s* M( z6 m7 [[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.2 J; g) z6 H) I) \ {9 k
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals0 q# E9 z6 k" l x7 w2 T p
have more body; percussive instruments are less aggressive.$ ~. L, x: {8 I5 ]2 ]8 K
The group delay behaviour due to AC coupling of the stages is different in. D" Y4 U2 x" w' H( D) }
tube amplifiers.
, k0 j) p1 c7 ~2 B1 } The “Bass Warmth” control allows to select the frequency range
) _# r/ b+ G+ G4 ?& V4 D- a/ W (10...200 Hz) within which the effect is active.! u7 N5 c( t, s/ f s0 R
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.9 t1 S* K: O" Y, S9 E1 Q
Valve amps have a characteristic response, mid-frequency harmonic content
3 W. s+ C$ V$ I& |6 J9 T is emphasized.# V2 V' j% a; J' z! R+ u |0 f
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
z5 ^4 ]" ]: A2 n! E1 F; b! U& l9 t The harmonics spectrum of a delicately overloaded valve amplifier is completely/ I- F, y$ W4 f& K" P
different from an overloaded transistor stage.4 _' o' c9 D4 |5 ]: ^! @* L0 p$ S
The “Gain” control adjusts a gentle overload while the odd-harmonics content
- S4 f* s* P( g% Z% D1 ~8 ^ can be adjusted with the “Clip” control.
# @2 g1 V# t+ t" ][7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24% L, M% u8 u3 r* A9 a
dBu FS.
: \0 B* ]8 [" W+ S0 d[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
* p. F( ?9 d/ u5 w8 I7 V desired channel.
5 C% D M. {3 `$ D4 q# v The “VALVE” LED is on when the Valve Dignifier stage is active." h* r' S& a8 Q8 T. Q/ R* s) _2 \; H) I
[9] INSERT INSERT function.3 U, |$ y2 T& s( K7 E
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
8 s; p0 e% G. e; f the valve stage (display: “INS”); the Insert Return is directly fed to the Line
) t- q7 L; l( @+ Q and AES/EBU outputs.5 p- G, ~$ B* x+ W T. v: u: q' p0 g
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before( D* [! q, A" w; d% d
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via9 q3 X) A* Q5 l
the valve dignifier stage to the Line and AES/EBU outputs.1 e2 ]* Y, F- M3 t
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
( V, c7 X: J8 [( Z+ F( ` stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
2 W, Q( |( F) A! _% S0 j8 i receives this signal; display: none).
. K1 @/ b) B% f4 ~& Y: D! i; I Insert Send and Insert Return are electronically balanced and equipped with6 }7 Q2 V# H* Z1 |; ^- ~( o
XLR connectors.
( N" g2 P! s4 D& \$ b[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or6 t3 ]( @+ Q' T$ @+ s2 Y+ K0 [
ADAT digital interfaces. Each input channel can be switched to one of the
" J& z# w7 P" Q `- C9 r7 q channels 1...8 of the multichannel interface. If desired, also a mono mix is
2 Q' s- M2 D4 U* G7 [4 D possible by selecting the same output channel for both input channels.
* ]% H X" [4 V c) Q5 V% h- Z7 Y2 s[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone' p) M2 p8 R- f: M! ^* F
channel.
5 X4 T) O1 e% ` Can be operated only if the input gain selector is in Mic position. The
+ ~. v) ~+ n4 @ y, ^" j setting remains stored when switching over to a line gain setting.
5 z, I0 d! Z# g7 @7 |5 g4 J[12] Activates the high pass filter on the microphone inputs of the desired channel.$ c- O! _& x @& Y4 A' x5 b2 P' W
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.6 o. Q) U8 M0 Y: v* T8 N# `
Can be operated only if the input gain selector is in Mic position. The2 M0 c+ j1 b) n+ ^% R
setting remains stored when switching over to a line gain setting.4 Y7 A) G5 O6 ]2 R& G0 w0 P1 m- M1 }
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
2 j. G0 X' D& P[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
* F) {0 c" J. ^9 u% l “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
; w5 a/ b) c& O4 j* V Noise Shaping (display: “16NS”) can be selected.
* I- y3 N3 x# Q8 y7 Y# z. H[15] SYNC Selects the synchronization source for the unit. Possible selections are:
) p! A* n9 {6 c" M INT 48 Internal quartz reference, 48 kHz T( x" E$ K% `7 s
INT 44 Internal quartz reference, 44.1 kHz
\, O, C- g7 }- l WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
/ n2 y4 [, R4 f& X! l AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)+ t! B7 s& J1 k/ o
AUTO Selects sources automatically in the sequence AES-WCLK-INT7 V) k2 B1 H4 u4 M2 N+ B7 ?
VAR Indication only, active if the external source frequency deviates from 48 or
; G! A) P, ^& ], A7 u 44.1 kHz for more than approx. ±3 %.
) n3 B* J- Q: j2 Z; V3 P q+ }[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –( e j1 K$ h1 x
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.: H1 n8 I8 u6 O3 w0 o0 s
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce: I& A- Z- ?. s9 B$ Z% b* U
the danger of overloading the A/D converter with short signal peaks (if( `% q0 R$ W3 A& f; p3 ~
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
, f4 R3 f4 K2 O. Z allowing for approx. 6 dB reserve before hard clipping occurs, P4 x# f; c/ f7 @
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