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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
1 _, \! D. ~' ^9 @+ [' @# O[1] POWER Switches the unit on or off. The unit is ready to operate with the factory( N3 u4 P2 V7 \0 P, v4 {" a E
default settings. The subsequent settings remain stored in a Flash EPROM
6 R5 u" G; }$ J; w2 e after switching the unit off (unit contains no battery).
6 m7 h. I9 L4 M$ y7 I s0 E[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
1 c. }) \; m/ l( a c between microphone and line sensitivity setting ranges.' w* U, c6 S' Z- v G; E) `! j
Mic: Range –40...+20 dBu- w" z' x, ^+ L- m( C7 D
Line: Range +14 dBu, +24 dBu
+ `& z/ o, z9 a[3] Fine Gain Potentiometer for fine input sensitivity setting.
& g. ~6 X# Z( K! b) u Range of additional gain: 0...+15 dB./ a+ u+ J9 o5 `( c
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents" @$ V9 Z/ l6 ?5 i
the dBu value of an analog input signal which causes a full-scale output of# {: Q- S! I0 r" T! |; b
the A/D converter.
' e1 A' t' z7 ?! Z+ c) G Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;( O, e: \* a/ T4 i
the peak level is therefore +16 dBu. The “Input dBu FS” rotary# N/ Q, t7 n8 e( ~2 { L6 {% n
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine- K: Z5 @, b" e# U0 q
Gain” potentiometer [3] increases the gain by 8 dB.
/ r) N5 V( K1 U. f0 q7 _[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
7 F7 _1 O! D5 h6 l# V! a[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals& J9 T/ m$ f' y4 C% Q
have more body; percussive instruments are less aggressive.
8 ?5 Z$ Q5 f* T The group delay behaviour due to AC coupling of the stages is different in
) u- h1 U/ x% b. e; K tube amplifiers." n5 |) ~9 |8 X0 @# T! p
The “Bass Warmth” control allows to select the frequency range
4 h+ d0 d- }) p7 _ } (10...200 Hz) within which the effect is active.
& v% P0 W, e3 h6 f* ]) ?- H[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.& U% O: S: e! r+ i) v _. j
Valve amps have a characteristic response, mid-frequency harmonic content8 n# c; o0 ?, Z9 u# i
is emphasized.) f9 l6 n, y0 Y0 e ^2 _. ^( ?
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.3 f& D' X# g4 o
The harmonics spectrum of a delicately overloaded valve amplifier is completely2 B4 z& _7 ~* u% R6 c5 `5 `& G# M1 g
different from an overloaded transistor stage.; ?# J( _% K, v3 U! n
The “Gain” control adjusts a gentle overload while the odd-harmonics content; X5 |$ D% ~9 r
can be adjusted with the “Clip” control.
4 Q4 ^. W2 e) d7 ^$ u[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
; }! ], t& L1 t% R dBu FS.4 z& |+ z# q: _) B/ E1 T5 g7 A
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
* Y' u5 b$ t% p' C! M* Y; P0 U1 c0 f desired channel.4 S/ U/ S O9 o0 o
The “VALVE” LED is on when the Valve Dignifier stage is active.
" L+ I. }$ {* m' e[9] INSERT INSERT function.
/ v! z |* z$ h) C S First key pressure: INSERT POST VALVE, the Insert Send is tapped after% Q! G2 P6 @ ~* U) R2 l2 q& n
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
! \" G3 B- M- o% I% ^0 R. a3 W and AES/EBU outputs.
# n; d$ L4 ^$ p6 P Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
/ U" J) S/ R9 a, Z2 l the valve stage (display: “INS” and “PRE”); the Insert Return is fed via V8 [5 S* q6 b
the valve dignifier stage to the Line and AES/EBU outputs.3 i7 n) \6 Z# A9 i2 [
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier. k$ i. p W3 |* L
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
* u. c* A+ ?$ x5 ]& n receives this signal; display: none).
0 \' H, a4 ^! i; R Insert Send and Insert Return are electronically balanced and equipped with
' x1 `1 I9 P3 F: _- e9 _ XLR connectors.% s, y% k: ^/ z' `" Y
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
, ^7 ~5 g. V/ j7 b, H% j ADAT digital interfaces. Each input channel can be switched to one of the
4 x' u' t8 @6 ^. g4 l/ j9 H0 k channels 1...8 of the multichannel interface. If desired, also a mono mix is
8 b$ v w& M- Y$ A5 ?, E possible by selecting the same output channel for both input channels.
2 Y% c1 K. A3 e! m0 y3 B6 r[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
; L, @6 W8 [5 z0 n* O9 u ~3 T channel.* C) }8 I; u* w5 g5 I
Can be operated only if the input gain selector is in Mic position. The
; y7 |; U% j/ Q2 ` setting remains stored when switching over to a line gain setting.& k8 H( l) C0 h" W% L
[12] Activates the high pass filter on the microphone inputs of the desired channel.0 _4 ?/ ]1 \# u8 }
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
+ |; c! I* o# ]: i: ? Can be operated only if the input gain selector is in Mic position. The. e3 h! X9 m8 p9 T, D) E
setting remains stored when switching over to a line gain setting.! o8 T3 s0 S5 f0 t6 }
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
7 Y/ S5 B( J+ u' q5 q s$ [8 d[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:; {+ R% y: E. ]# H
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
; _& Z. v9 g" G8 ], }/ \6 F0 K0 ]5 U5 ~ Noise Shaping (display: “16NS”) can be selected.- B4 Z( Q3 n; e; o" C0 |8 t& p
[15] SYNC Selects the synchronization source for the unit. Possible selections are:' f4 L: Z( x7 ^4 o1 j" E! Y
INT 48 Internal quartz reference, 48 kHz2 r: `$ ]/ ^4 \# v# w: @! e
INT 44 Internal quartz reference, 44.1 kHz0 C- U( b8 l8 E0 N' ~$ Y
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized), O( Z* s, x$ j# g9 B
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)) t9 c/ v1 i3 Q1 f
AUTO Selects sources automatically in the sequence AES-WCLK-INT
4 C4 s. n& }% u' U( ~+ D% ^! U VAR Indication only, active if the external source frequency deviates from 48 or
; [9 y: i+ S* ^5 T9 | 44.1 kHz for more than approx. ±3 %.
: k s: D k# ?/ O[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –; d! Q/ n7 d7 `, `9 B3 |! I
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.0 J! k8 o6 \" B% i
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce* \# b5 z# h9 _9 g- O% B
the danger of overloading the A/D converter with short signal peaks (if+ R$ E8 A. W. o5 w" W# \, q, j
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,: T, S1 K/ X& P9 n
allowing for approx. 6 dB reserve before hard clipping occurs' M$ v2 X2 C3 c6 B3 T0 H/ I% u
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