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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 # X, c1 U- F* N; M9 I
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英文电子说明书
- E4 s) S+ q- Z$ I" T' g[1] POWER Switches the unit on or off. The unit is ready to operate with the factory8 ~4 j) T4 r7 ~
default settings. The subsequent settings remain stored in a Flash EPROM: l3 \" E) [" x( x+ Z' b' g' X
after switching the unit off (unit contains no battery).+ X, M! i% L. w
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
: }- S7 q3 Q% `5 G2 k1 O5 W between microphone and line sensitivity setting ranges.
8 f5 N$ O, L! Z Q Mic: Range –40...+20 dBu! @- [! G" @: ?- G" K& f
Line: Range +14 dBu, +24 dBu
; }; t4 \! v" P/ r& g- N. W% ][3] Fine Gain Potentiometer for fine input sensitivity setting.: Z% F7 U! F, x- Y, K* t0 L
Range of additional gain: 0...+15 dB.- q5 c( v( n' {3 H1 w5 t
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
( O2 s9 d" `) m the dBu value of an analog input signal which causes a full-scale output of
7 ^5 E @% }# j$ [0 T the A/D converter.; ^- b" v! h+ D6 _' Y& U+ K
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;, {; O' D4 F( ~2 U( F
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
; [+ O% R* ]( H7 N switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
3 ^9 k; v6 F# q% @& X( U Gain” potentiometer [3] increases the gain by 8 dB.
5 }9 U4 m+ v0 s; W R1 z# Z/ V2 K2 e[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
8 K( C' O4 a8 p$ [0 C[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals6 N+ ~0 U5 w5 h0 A
have more body; percussive instruments are less aggressive.& G3 s% _5 A {1 @3 x: x# d5 Q
The group delay behaviour due to AC coupling of the stages is different in8 T" W( n4 _5 ~6 E
tube amplifiers.
I6 X, K: u2 R; P* v7 s The “Bass Warmth” control allows to select the frequency range
( ~3 Y: A1 J- R (10...200 Hz) within which the effect is active.# R' Z: A; G* g' R, X* Y
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments. C2 P: J- F; F+ w- O, L
Valve amps have a characteristic response, mid-frequency harmonic content
9 B) R! `0 o4 C is emphasized.
2 |- V5 |+ g- Q' ~" ~[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.6 D3 V: a+ \3 ]0 ? w
The harmonics spectrum of a delicately overloaded valve amplifier is completely
0 e. k, j! K; V; |' {! y4 Z0 ~# \ different from an overloaded transistor stage.
+ r0 `1 a5 K! n The “Gain” control adjusts a gentle overload while the odd-harmonics content
5 h" ~ o: P- u B! t1 B3 c7 g: W can be adjusted with the “Clip” control.3 K B# N6 h& g$ c0 p5 x
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24. f4 q1 i6 m; V% u4 n
dBu FS.
) q3 w3 x. }% \7 A$ v+ T2 x+ Y8 \$ u[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
6 q8 W- L' y' G/ I; z* z desired channel.$ P2 f5 l. T& X, S: I
The “VALVE” LED is on when the Valve Dignifier stage is active.& `. s* P$ E5 J% T4 e) n
[9] INSERT INSERT function.
" S/ O% Q0 ]/ ?$ P/ G# v First key pressure: INSERT POST VALVE, the Insert Send is tapped after
& g5 C$ _& K7 \4 E the valve stage (display: “INS”); the Insert Return is directly fed to the Line6 W4 T& G; S6 n- D: h
and AES/EBU outputs.
% o! m7 g$ B7 \ Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
! `' k9 Z, v: Z8 c' u the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
( I1 Z, M- d( z0 {* ?, P9 W the valve dignifier stage to the Line and AES/EBU outputs.
+ ~% b- b7 d* r" l/ L Third pressure: INSERT OFF, the input signal is fed via the valve dignifier8 H! W$ G9 m/ h3 ]1 }
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output! J/ Z# z- B B5 n+ X
receives this signal; display: none).
/ E; J U; A& r: h! O Insert Send and Insert Return are electronically balanced and equipped with
/ x! C% `5 A# y% v; j: m" V/ K XLR connectors.
( `$ B" W- L; A5 A" ?2 W[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
1 u3 a" H7 T+ i1 X. W- K# D- H ADAT digital interfaces. Each input channel can be switched to one of the
; r3 b, w1 T, S( x channels 1...8 of the multichannel interface. If desired, also a mono mix is
2 B- e. R! a2 U( y2 \9 p possible by selecting the same output channel for both input channels.
' ~- k" ? n$ l) \1 T) q[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
5 X B$ D! t0 z channel.
3 L f, _! `9 O, {* a Can be operated only if the input gain selector is in Mic position. The- V7 t0 H: L4 ~
setting remains stored when switching over to a line gain setting.
) u) I* E. `: R6 T ]9 Y, g[12] Activates the high pass filter on the microphone inputs of the desired channel.! [" a+ ~! ]% G) t+ U& A
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
4 g) {" O- y! V& E( ^; T Can be operated only if the input gain selector is in Mic position. The
, E' I; @! Q( k9 c* d" l setting remains stored when switching over to a line gain setting.
7 d. Q/ d6 ]- g) ~) \2 Y[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
2 @7 Z, V) o1 Z7 ]& l+ T/ B[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:, c6 H4 ?/ x5 e/ x( R& m( Z
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with8 @0 T: C3 l b2 ^4 A z1 E
Noise Shaping (display: “16NS”) can be selected.4 z& z8 }6 O5 W: C, W, T% ^# G4 O
[15] SYNC Selects the synchronization source for the unit. Possible selections are:4 O5 g! Z& k' A( G3 |
INT 48 Internal quartz reference, 48 kHz
5 Q, T/ Z `+ \ INT 44 Internal quartz reference, 44.1 kHz
% L d) I5 |1 m* |# r WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
" W( {. e5 F8 G" d D AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
' r+ ~2 [- n3 U AUTO Selects sources automatically in the sequence AES-WCLK-INT# ]$ x/ Q/ W& b/ X
VAR Indication only, active if the external source frequency deviates from 48 or
2 o0 n% W; b; g2 M! g" Z8 v 44.1 kHz for more than approx. ±3 %.
. m* \5 a5 T8 `! f1 V[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –2 `$ K8 p* o I6 u" Y) i
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.3 {% g, F! {3 g J8 r* o) ]
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
7 o. x& g4 p' P- ^ the danger of overloading the A/D converter with short signal peaks (if
) P6 X6 E/ y/ a active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
7 R* J" ~9 s; d& R& N2 O allowing for approx. 6 dB reserve before hard clipping occurs
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& l* Y$ i' Z3 j- d& O
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