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发表于 2012-5-20 00:04:04
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本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 7 D; I4 x# o8 }
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英文电子说明书/ a9 s& P) W) I I% ^; X9 }
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
; a( m: a9 Z& G4 s default settings. The subsequent settings remain stored in a Flash EPROM! b& G9 |$ ?5 f
after switching the unit off (unit contains no battery).
! B' y! p; N+ _- Z[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
* e$ V8 K; d5 N+ q between microphone and line sensitivity setting ranges.; A8 R5 g( \, I& ?
Mic: Range –40...+20 dBu% _' C5 g( o7 b" B! x. y2 O, j" H
Line: Range +14 dBu, +24 dBu* C! ~* {* }4 M$ M. ]! r$ e
[3] Fine Gain Potentiometer for fine input sensitivity setting.
* k7 C, S: J% ^# t Range of additional gain: 0...+15 dB.
3 \& S8 r/ t1 T$ W" Q. G Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
; J# P' c7 }1 v2 P the dBu value of an analog input signal which causes a full-scale output of
: D8 {: b3 _7 j# @. m the A/D converter.+ L, `! I( N- h4 [& A1 O0 r
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
t# F1 {, ^; p u( ~+ r- t7 }. C the peak level is therefore +16 dBu. The “Input dBu FS” rotary. N2 A+ t; u" r2 N* i
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
, @/ x# u, |# K Gain” potentiometer [3] increases the gain by 8 dB.
# @# K6 I& _: [, y8 o+ [[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
( J! V. j* w/ ^% S& v5 ~[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals0 X* N) }( q" a1 z! H! Y2 V" X) c" f
have more body; percussive instruments are less aggressive.
, o- N- r! c3 t( V3 [9 B" r9 n0 L The group delay behaviour due to AC coupling of the stages is different in' ]) |$ b/ p% {- s
tube amplifiers.
0 H3 Y4 ?- d, H; k9 @ The “Bass Warmth” control allows to select the frequency range
$ a* m/ [ B) \ (10...200 Hz) within which the effect is active.
7 [* n2 W3 o; }0 E' w2 r[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments./ U& j2 z: M, X: b! |/ P% d
Valve amps have a characteristic response, mid-frequency harmonic content
- ^& D+ q0 X% }0 S0 U) I( n is emphasized.
: L9 S9 s+ q( V$ z" V- G9 H[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
+ Y0 p& [' P$ r: ^ The harmonics spectrum of a delicately overloaded valve amplifier is completely6 R1 l1 \+ e" p4 i) q7 g5 H4 }
different from an overloaded transistor stage./ X' @7 k) U7 R, V6 Y
The “Gain” control adjusts a gentle overload while the odd-harmonics content+ o5 s! c5 a1 @
can be adjusted with the “Clip” control.
& |0 g! G- v7 v9 u' z# C[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
, D( K- ~4 k6 ~1 _ dBu FS.
4 }& o* B, U8 L2 I" s[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the) O& ]. B$ h; K" q# A; Q" N8 k
desired channel.) z3 h6 ~# L# l1 y+ V. V" U
The “VALVE” LED is on when the Valve Dignifier stage is active.
! E0 D& }5 C- b2 p% A% h+ K) X[9] INSERT INSERT function.# z R3 r y$ c
First key pressure: INSERT POST VALVE, the Insert Send is tapped after: v9 V8 ]5 v& Q" s, q: f
the valve stage (display: “INS”); the Insert Return is directly fed to the Line0 k% x8 u- h9 a/ O1 V. D
and AES/EBU outputs.' h1 Z6 z" s1 @' |/ i7 d
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
: F: x' i8 c& f7 D the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
# r' l5 B/ y' w3 M( E. L the valve dignifier stage to the Line and AES/EBU outputs.
1 u" b2 F* d' \! ~, r Third pressure: INSERT OFF, the input signal is fed via the valve dignifier- x1 L, E( C1 N; z0 Z
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
) O; @& j/ {$ R5 L6 x6 | receives this signal; display: none).7 {7 z6 y" |" z5 q3 [
Insert Send and Insert Return are electronically balanced and equipped with3 l& ]' M" L0 r; R7 Z4 J9 g6 F
XLR connectors.# O D* c8 O; c" E
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
) g. O0 Y5 y" k) C7 u- Q$ o ADAT digital interfaces. Each input channel can be switched to one of the8 V' ^# d' v1 g e/ r7 f) H0 c" v
channels 1...8 of the multichannel interface. If desired, also a mono mix is
# @* D3 Q% o2 z# g possible by selecting the same output channel for both input channels.) E8 b @9 O: j' _
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
% R* m; R$ H8 x" y- u3 x channel.
" m7 S) ?* ]$ h# B3 v% y/ i Can be operated only if the input gain selector is in Mic position. The3 j8 c) V6 N: I# g
setting remains stored when switching over to a line gain setting.0 z1 P: K- @. x
[12] Activates the high pass filter on the microphone inputs of the desired channel.4 _" j p0 n- G6 ?' Q
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
) z z/ J( g3 W Can be operated only if the input gain selector is in Mic position. The% C# Z6 E0 G( t/ h0 X8 G1 O* k. v
setting remains stored when switching over to a line gain setting.
* D: s4 Z/ Z$ Q% R7 _9 W[13] Ø Toggle key to activate the phase reverse switch of the desired channel.# ?. R: p" l" d0 _4 u9 I- S: e
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:( N: G; ]8 j) G" A# d. p2 i+ n/ Q
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with: l- M, J$ R" @/ L7 W! y; F
Noise Shaping (display: “16NS”) can be selected.6 t ]# B# p8 N9 @
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
; F) |! @: u7 J- A* k4 ]8 T INT 48 Internal quartz reference, 48 kHz
& p! k1 ~( I# M7 f6 C INT 44 Internal quartz reference, 44.1 kHz
! \5 Y8 S& K4 I _& Z6 K2 U7 t5 s WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
; w7 c7 Q. y' a A4 ~9 s( M AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
3 Q0 K) y5 {8 h5 b, S8 g7 c AUTO Selects sources automatically in the sequence AES-WCLK-INT5 Q+ u! f' L* D5 P4 @
VAR Indication only, active if the external source frequency deviates from 48 or
2 m+ _) f& W( F u 44.1 kHz for more than approx. ±3 %.
: I \4 q8 `' J/ D K[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
( W: u: ?) t# k, _) b either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
6 y& F) o! G% V- i% |* g, k3 [[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce, _! o, H( D: m& S( y- \
the danger of overloading the A/D converter with short signal peaks (if! m7 x( q$ {. t$ a0 g. m! B. u
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
) i; n+ T- O4 A9 W# N allowing for approx. 6 dB reserve before hard clipping occurs0 x* I, k |/ Z6 \; Q7 J
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