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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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" x: @3 ^: y2 S英文电子说明书9 E7 a/ k8 ?6 U, g+ e0 _
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
3 y! Q- n1 e9 I. @" u default settings. The subsequent settings remain stored in a Flash EPROM L. Y& ?, x# | k% M
after switching the unit off (unit contains no battery).
5 B. Y7 ?; M) G( B+ H[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position9 P9 r9 \: L$ w2 }/ K4 F V) }
between microphone and line sensitivity setting ranges.: C( l* C5 b+ w9 r3 |/ r
Mic: Range –40...+20 dBu% g8 q& x3 \ B; U
Line: Range +14 dBu, +24 dBu
! g9 V: n0 E4 ~[3] Fine Gain Potentiometer for fine input sensitivity setting.! c7 L; _! N5 Q4 K, S1 O/ L
Range of additional gain: 0...+15 dB.
: d6 x+ h4 R- q ^9 W Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents" P. r/ C0 u- X, G
the dBu value of an analog input signal which causes a full-scale output of: S7 N# ?2 o2 B+ o
the A/D converter.
5 R9 ^( S g+ w6 E8 S4 ]6 s4 O) p Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
* O. M7 O# T4 f! O8 Z3 K! x the peak level is therefore +16 dBu. The “Input dBu FS” rotary
' `% d# Q! o1 \8 y( i switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
" h9 c) A2 F. i& g4 Q Gain” potentiometer [3] increases the gain by 8 dB.7 n- ^; r% ]) g6 E) H/ U2 R
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
/ \3 v8 K7 g5 z$ Y[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
% U9 U: _! Q$ S( ]1 i/ \2 c have more body; percussive instruments are less aggressive.
, ^' p3 Z4 u% `3 q2 b# ? The group delay behaviour due to AC coupling of the stages is different in; j$ }1 r# y4 o/ K( W$ q
tube amplifiers.
7 w# R9 z) M2 }# h, u3 } The “Bass Warmth” control allows to select the frequency range9 n" Q1 D$ B# i" ?/ w
(10...200 Hz) within which the effect is active.
7 y* @2 i7 b; T+ U[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
2 ~ J+ T7 E8 i7 p" T0 u* V! g Valve amps have a characteristic response, mid-frequency harmonic content
% L; q$ Q; ~7 I% B; F" `4 c/ P is emphasized./ G2 m5 _- d. L5 j
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
J1 I+ V2 q% f& ?& r1 s+ y" v The harmonics spectrum of a delicately overloaded valve amplifier is completely
7 Y& _5 n' S1 i \% J! j different from an overloaded transistor stage.
7 o9 u5 t9 u X The “Gain” control adjusts a gentle overload while the odd-harmonics content
. `1 I5 M9 q* e. d. G9 g8 a2 K' q can be adjusted with the “Clip” control.
" f; d# v7 ^; j[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24% T" w `! c5 @, g
dBu FS.
% b7 q- B/ v) Z, K, S[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
, ? s( V+ `" D" r! H desired channel.) x! e8 E6 Q2 i! j& I, V
The “VALVE” LED is on when the Valve Dignifier stage is active.% c: \" r3 |6 e1 ~
[9] INSERT INSERT function.
; c5 l/ x/ q- O: X# w( `4 J0 P O- y First key pressure: INSERT POST VALVE, the Insert Send is tapped after( k" f( u' V; H7 k3 K% _+ Z
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
, j9 x0 M$ |* v# n" `; d+ [ and AES/EBU outputs.
! r2 M j& I9 S K7 C Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before) ?+ r; d" W* B j) e; m
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
2 V5 V* p- `# ?' c the valve dignifier stage to the Line and AES/EBU outputs.
- n1 e! o8 f: h* a" \ Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
^7 |4 r" z! C; @2 M stage (if active) to the Line and AES/EBU outputs (also the Insert Send output- Q9 Y" H6 x+ Q3 t1 K
receives this signal; display: none).
, W/ r( E: K* E Insert Send and Insert Return are electronically balanced and equipped with
0 A4 g, c( C* X5 t XLR connectors.
- ?9 L$ H% G/ d: w[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or$ F; B3 V5 J p2 \/ n
ADAT digital interfaces. Each input channel can be switched to one of the
9 W1 m5 I7 i8 C; w$ x8 r channels 1...8 of the multichannel interface. If desired, also a mono mix is
0 B- r: P3 ~0 f' O+ E) j possible by selecting the same output channel for both input channels.. }( W9 E k, ^0 z
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
9 v$ N# Z1 ^4 f6 r, r$ `1 G channel." ?5 d1 L" _/ d
Can be operated only if the input gain selector is in Mic position. The
) L7 Z% ]: m, V4 v# _: P& R setting remains stored when switching over to a line gain setting.
! `1 _8 [; p1 T[12] Activates the high pass filter on the microphone inputs of the desired channel.
/ g- r( ~! i- z Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
/ s) W) J$ a( A: `% n0 a Can be operated only if the input gain selector is in Mic position. The
3 G. J6 g! u6 N3 A! } setting remains stored when switching over to a line gain setting.
/ s; H/ G0 M( y! _+ i[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
( r9 r/ m u; j S2 V: e9 {! M[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:& v$ K4 R7 J. b4 u5 d
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with% Z i* H9 O: i, A" c9 V- w& I' X
Noise Shaping (display: “16NS”) can be selected.
$ v: S' c1 r4 L7 G[15] SYNC Selects the synchronization source for the unit. Possible selections are:1 Q9 |7 H) g7 s1 V/ q+ }3 j- _, ?
INT 48 Internal quartz reference, 48 kHz+ g( Y1 Y$ \5 h- E3 A- Q* k
INT 44 Internal quartz reference, 44.1 kHz
2 U! E. ?+ h9 F7 E: y WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
4 E/ b; S7 \) I/ D/ B AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)5 N7 t! a6 S, ~& [! u% b2 z, H; m1 w
AUTO Selects sources automatically in the sequence AES-WCLK-INT
3 X1 z0 \2 Y8 L, d VAR Indication only, active if the external source frequency deviates from 48 or! B1 v. `- n& H
44.1 kHz for more than approx. ±3 %.
3 E$ g' n2 c% D8 _[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
. f" Y$ i& b8 k0 D$ P+ [, D. s: ?7 Z either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.8 Y# c+ U( A4 y2 m' w# b+ F4 p
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce; ~3 c4 @" X! T. k' l( g
the danger of overloading the A/D converter with short signal peaks (if Q8 Q$ q$ F( k( c9 S
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale," H2 x% s6 k8 X$ H9 _3 f8 e4 S- m
allowing for approx. 6 dB reserve before hard clipping occurs$ z. |. K6 \6 h: K
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