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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 9 X. U8 K( {7 D5 @& h' m* s
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英文电子说明书/ @1 i U6 E$ K6 C) X. N
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory/ @) `1 k% Q. h' h4 B. C
default settings. The subsequent settings remain stored in a Flash EPROM
7 d& P, ?) t; h5 m6 u after switching the unit off (unit contains no battery).
* j }" Y1 W! R! h8 J, d[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
* j7 T* x* d- b( f& a between microphone and line sensitivity setting ranges.; X3 C. C# z4 X# q9 E* s k' i0 ]
Mic: Range –40...+20 dBu3 @5 H4 Y- D5 I( R
Line: Range +14 dBu, +24 dBu
& T* W+ Y5 T9 v" a( k. \' U, h[3] Fine Gain Potentiometer for fine input sensitivity setting.
# ?" h0 K# G$ [- M/ C& G V Range of additional gain: 0...+15 dB.6 ^- D3 Q6 y4 r
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
3 ]1 d9 K- F8 _6 q the dBu value of an analog input signal which causes a full-scale output of
% c& L" Y. r" E the A/D converter.
/ S4 S& q9 R* x/ j1 c' G Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;, e5 U) S' n7 d$ H4 j! F9 N
the peak level is therefore +16 dBu. The “Input dBu FS” rotary/ t, w- |; `+ C
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
D/ m; {) m& `% n7 e% G Gain” potentiometer [3] increases the gain by 8 dB.
/ H, e2 S3 e5 P[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
: }8 A- ?6 b" y$ Q6 v% v[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
& V. n0 r% O3 t$ c, @; ` have more body; percussive instruments are less aggressive.
B2 s! i& O `9 J% X The group delay behaviour due to AC coupling of the stages is different in
1 k! T2 E4 u& U' F tube amplifiers.5 c0 e5 f' p; o6 c; [
The “Bass Warmth” control allows to select the frequency range
3 O, R% w7 ^; ^3 R' Y (10...200 Hz) within which the effect is active.
1 ]. I* X A* b3 V+ V0 Z[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
$ U1 R* D& v& [9 R; z, { Valve amps have a characteristic response, mid-frequency harmonic content$ T4 @7 d* m8 u) p3 u+ k
is emphasized.
3 h+ X/ w) n% r, w0 A) k, u[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
5 ? w+ U3 H* Y2 t& R8 R4 O9 P The harmonics spectrum of a delicately overloaded valve amplifier is completely5 w: P* ?$ _, K; b& z, C1 `
different from an overloaded transistor stage.
( I# v( W& ?! N; { The “Gain” control adjusts a gentle overload while the odd-harmonics content
F0 l7 F, }9 {" s7 Q9 u can be adjusted with the “Clip” control.3 q8 f- x) u8 a" ?" {/ P' R! f
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...246 \0 r* y$ T. `- K7 i7 J
dBu FS.; A: N& R, Q5 z2 f! j3 [% U# q; F
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
* N X6 e$ r9 h4 S; W5 N- s% `1 i desired channel.% b; u3 G' j/ w, k
The “VALVE” LED is on when the Valve Dignifier stage is active.
, K( o& u3 |' C, i. o[9] INSERT INSERT function.2 l# O* u; y2 ?2 S0 u) q$ I
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
$ F9 [ q; S$ c) ~- r7 f( } the valve stage (display: “INS”); the Insert Return is directly fed to the Line
' e/ k/ M% f5 j# V! `* o and AES/EBU outputs., I8 ?3 a. M4 y. p' ?3 Z
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before. ~( j5 }4 ^4 X2 e# \* i
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via: @& G, r% r) @% _; {5 z0 Q
the valve dignifier stage to the Line and AES/EBU outputs.
, B+ ]$ U' i- A0 X5 O& M7 z. c* b& g Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
5 }, j t" ]& `: d5 z. @- a! ` stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
; v$ M$ ]3 A" }; z5 g1 A1 W8 b receives this signal; display: none).
/ l' s3 H4 `- R- d0 y6 y Insert Send and Insert Return are electronically balanced and equipped with
+ c) ?; \& z3 F3 C XLR connectors.' x# `) `' |: }
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or1 u$ ]: l+ v' v2 C8 v) J
ADAT digital interfaces. Each input channel can be switched to one of the- f8 ?% o( M6 w. y: x
channels 1...8 of the multichannel interface. If desired, also a mono mix is
: A0 h" H9 ]' c2 U$ J/ K possible by selecting the same output channel for both input channels.
, Z* C; ^, z* x3 x/ x& [0 C9 f) q[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
) L6 Z9 C' s, H# s$ l" T channel.+ l# {; a1 Y2 X2 {* e F( H0 P# @
Can be operated only if the input gain selector is in Mic position. The) O% M7 e/ M4 j5 v: `7 K7 w8 ?
setting remains stored when switching over to a line gain setting.& ?* E2 q! _: z7 P6 q
[12] Activates the high pass filter on the microphone inputs of the desired channel.
$ U/ L6 q h& h7 I Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
" F) V9 O- c2 g5 x$ S, \ Can be operated only if the input gain selector is in Mic position. The- t% g& q% d, W4 Y8 A) z
setting remains stored when switching over to a line gain setting.
@4 Y# ^- ]) D) j" b' o- l+ W& D. S[13] Ø Toggle key to activate the phase reverse switch of the desired channel.' S5 s4 S. U) ^( i# y
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:6 M& U# ~% z' }* L
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
+ ?8 L+ ?1 @2 U& j Noise Shaping (display: “16NS”) can be selected.
# q* M. I: S3 a% Y[15] SYNC Selects the synchronization source for the unit. Possible selections are:8 Y; c4 K( {9 K$ X5 _; J* z; m
INT 48 Internal quartz reference, 48 kHz7 ~( ?, _, ^4 |* s: e8 t
INT 44 Internal quartz reference, 44.1 kHz
5 y) D8 H) u0 w9 a4 u5 T5 W WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
( `. g! y+ K0 t' ~3 F AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized). v2 i R( l2 ]* Z, q' N
AUTO Selects sources automatically in the sequence AES-WCLK-INT
1 g1 F# q: d) W9 j& V l$ d VAR Indication only, active if the external source frequency deviates from 48 or
3 z5 r5 ^$ | j! V5 T2 e$ \5 a3 c8 g" j+ A 44.1 kHz for more than approx. ±3 %.
6 \- Y" y+ t" V[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –# x9 {% j6 a+ R$ q
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
$ b. h7 K) I" ~( M, X% u! V+ S Y) t[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce# R) Y& x8 F" F+ Z4 W& @( W
the danger of overloading the A/D converter with short signal peaks (if- S8 a7 p- B! m, T( G# k7 y& [
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,6 [0 H# b9 j. L6 w
allowing for approx. 6 dB reserve before hard clipping occurs, }) d, T- F/ c, a; _% l+ n
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