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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 2 A" W C' w& `
5 L* r1 Z% m9 ]& `/ r' t4 ?1 U英文电子说明书
9 F1 D g3 Q/ O5 f5 J2 I6 C0 A[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
1 Q4 |7 A0 `0 @2 I* H default settings. The subsequent settings remain stored in a Flash EPROM5 F- D2 Q# W& N
after switching the unit off (unit contains no battery)./ f, s0 F3 D" R# _6 j1 S
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position+ O: @0 Y/ T0 q
between microphone and line sensitivity setting ranges.& n1 n, m @. x9 ?0 b7 l; C7 V
Mic: Range –40...+20 dBu$ z6 o# N# \0 h9 r& d
Line: Range +14 dBu, +24 dBu
/ `5 U4 L/ F6 M4 i4 J0 @# z[3] Fine Gain Potentiometer for fine input sensitivity setting.
7 x& o; a- L+ q. F7 a w Range of additional gain: 0...+15 dB.+ E. k5 W, s: }7 C+ r. h- g2 A2 v9 `
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents9 V$ ?2 _5 H- K
the dBu value of an analog input signal which causes a full-scale output of1 @) S$ c( n& F7 b2 m: d, W
the A/D converter.
. |/ a- p! _ k3 h0 D Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;& u7 w' l% X/ Z$ `, Y3 n+ c
the peak level is therefore +16 dBu. The “Input dBu FS” rotary3 v4 ~2 W7 Z5 e9 z) k4 S$ i
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine, v }* b+ o; y
Gain” potentiometer [3] increases the gain by 8 dB.0 _% E1 `) p. b7 r% \' `
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.# w$ y3 K0 ^1 ]" N2 ^' R
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
/ S5 H3 r I. ~9 M have more body; percussive instruments are less aggressive.
& y: Y( q- e" }( l( r; R The group delay behaviour due to AC coupling of the stages is different in
' u0 o1 |4 F8 b( R+ e/ v tube amplifiers.
- L2 I6 h1 t7 x7 T' C s The “Bass Warmth” control allows to select the frequency range
/ @9 b- u) ~2 |, w' Z (10...200 Hz) within which the effect is active.
3 [8 f% E! U) m. Z[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.4 W) A0 p7 Y, |0 P7 X, O
Valve amps have a characteristic response, mid-frequency harmonic content
5 p/ x6 H% C. @8 g is emphasized.
# E- N+ {& U3 j& E& H3 u[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.; _: L2 o0 V* q3 @! W9 `. n0 W
The harmonics spectrum of a delicately overloaded valve amplifier is completely
# l' p1 t, s) y) |4 M different from an overloaded transistor stage./ K; Y3 Q' G' L! L
The “Gain” control adjusts a gentle overload while the odd-harmonics content2 H2 k+ K6 ^+ v6 I9 ~
can be adjusted with the “Clip” control.
- }6 E( o0 ]; ~ u+ {/ f: M% W[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
8 G# `- B$ ]% n+ s dBu FS.
3 ^4 F1 X+ r3 ]6 a9 Y[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
& f* I3 @2 {% K9 R, f1 } desired channel.
$ Y+ q! c. k# e" k3 [4 W The “VALVE” LED is on when the Valve Dignifier stage is active.
% _4 V$ `2 C$ Y. h$ x% F[9] INSERT INSERT function.
/ A# D5 x4 y: G( l; d! } First key pressure: INSERT POST VALVE, the Insert Send is tapped after
- P9 Z. q- b* k& O7 d1 ^ the valve stage (display: “INS”); the Insert Return is directly fed to the Line }. N9 q" B, \# q; M- G
and AES/EBU outputs.
/ G! y2 ^' E' b- ~ Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before/ h4 O X- t# P) K' e: K2 S+ T9 ^
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via1 R4 ^0 D: Q2 ~) v: W
the valve dignifier stage to the Line and AES/EBU outputs.
$ u2 g& a9 c# h( t3 d Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
- h2 {) @- y X! y; o: j, e stage (if active) to the Line and AES/EBU outputs (also the Insert Send output3 S% ^* u' ~3 o% C
receives this signal; display: none).
, i x7 T( k2 z" v& E" Q Insert Send and Insert Return are electronically balanced and equipped with
# f" Z1 V; p' w, t0 O* g1 `( r; h XLR connectors.6 H$ m! ~9 y# H: J
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
: ]* a% X0 j4 S' k3 F ADAT digital interfaces. Each input channel can be switched to one of the
8 U+ Z" \; A: k channels 1...8 of the multichannel interface. If desired, also a mono mix is
0 |' H7 f& ^, M1 i6 Q( ^ possible by selecting the same output channel for both input channels.+ X$ j+ \' V9 Y# ^7 t
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
& @( M. k1 k6 Z# s channel.3 X4 v- ]: @- X1 t: \! N' C" |
Can be operated only if the input gain selector is in Mic position. The0 Z7 z/ U$ \9 T; x9 a- q+ H5 c
setting remains stored when switching over to a line gain setting.# |) M# P2 q5 g7 z3 @
[12] Activates the high pass filter on the microphone inputs of the desired channel.
) R" @# i! q$ U& R& q+ k" y" G, ^8 g Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.) e1 X8 i# U6 g2 t) v' S3 F
Can be operated only if the input gain selector is in Mic position. The
7 z2 Q# b R) N A4 _0 x( p setting remains stored when switching over to a line gain setting.
# g! z# O5 S0 N" o$ T7 i6 l1 T[13] Ø Toggle key to activate the phase reverse switch of the desired channel.' x! {5 t Z3 ~& q9 V" z
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
3 D* E; |+ c1 _/ T5 y2 X/ J& z “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with) ]8 ~. @& c) j+ I/ M
Noise Shaping (display: “16NS”) can be selected.( C# S( r5 W/ o7 e2 c, e4 E
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
6 e4 Z" Q0 r4 a9 I. R INT 48 Internal quartz reference, 48 kHz/ Q$ A; t1 G3 O' X6 R! ~: c
INT 44 Internal quartz reference, 44.1 kHz
/ ?$ v u9 G8 J; G8 D( }/ B( ^2 q. p WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
. b! \5 Y$ n* | {: p8 C AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)+ I% z+ L+ w2 x" j5 |
AUTO Selects sources automatically in the sequence AES-WCLK-INT! J. O( a! X6 }" n: [
VAR Indication only, active if the external source frequency deviates from 48 or
3 J5 R$ l* A% B5 p7 N* d% N9 b 44.1 kHz for more than approx. ±3 %.9 j" X0 ?, g+ W; O6 L' x6 }$ W
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –0 m% L# `9 N0 a& H0 a9 w
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
$ {: J1 G/ R1 b( D0 c[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce/ w; Y" ]$ {9 m
the danger of overloading the A/D converter with short signal peaks (if8 ~' @" |' K2 ]6 ^3 ^7 M
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,7 x3 ?9 {% Y9 D1 Z/ H9 F
allowing for approx. 6 dB reserve before hard clipping occurs
1 U1 E# o4 K5 |4 Z , B. u; H% I0 [- H- c
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