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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
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2 ]( C3 A M: r: c' H) D6 X英文电子说明书/ ?) m) O* d( c# r
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
" I5 F- X/ h* W. c default settings. The subsequent settings remain stored in a Flash EPROM* u+ U9 G& m$ I/ t
after switching the unit off (unit contains no battery).9 ?$ J# `/ b/ }: z, k
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
) l l7 D) \" {8 v9 Z1 v between microphone and line sensitivity setting ranges. m% A9 e. h: [
Mic: Range –40...+20 dBu+ ]; M$ D3 k$ P/ }
Line: Range +14 dBu, +24 dBu
- w: v4 _; d) @; N: ` p[3] Fine Gain Potentiometer for fine input sensitivity setting.; F/ J. \' c3 l i7 R( ^
Range of additional gain: 0...+15 dB.2 g9 W+ x" h7 x# P
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
6 \' Z2 P& ^. C; ]* K4 G: _ the dBu value of an analog input signal which causes a full-scale output of
0 w( H9 r* c, r% |" z9 y- j the A/D converter." ?/ c4 I h9 M) Z
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
9 j4 I/ r/ V5 q/ t! y the peak level is therefore +16 dBu. The “Input dBu FS” rotary: b" @0 B$ ^2 e: M4 i
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
% p/ O& V6 a* w/ `$ c& U Gain” potentiometer [3] increases the gain by 8 dB.
9 d' j6 j7 v# p0 g, n" Y9 j[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
# F# C3 ?" F" B5 s! Y[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals/ M. s. P+ j2 j/ b/ S, l
have more body; percussive instruments are less aggressive.
5 e3 I. `( q3 y" F7 p" [; \* Q: x The group delay behaviour due to AC coupling of the stages is different in
; k; B1 T( d/ N tube amplifiers.
( A( [5 w; ?: C( q2 S! a The “Bass Warmth” control allows to select the frequency range! U4 R1 Z8 z; j0 c
(10...200 Hz) within which the effect is active.
/ i8 n1 b% Z: J) d8 J' x3 C[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
4 J9 G4 J. N" g5 e: j# L- B2 I; Q Valve amps have a characteristic response, mid-frequency harmonic content) C( l$ m- F% M! n) d R1 M
is emphasized.
# @- Y R$ X: E[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
* `+ f2 L) {$ |$ | The harmonics spectrum of a delicately overloaded valve amplifier is completely5 U2 V4 `! J- ]# [
different from an overloaded transistor stage.
8 _ J! ^* F( z9 e4 { The “Gain” control adjusts a gentle overload while the odd-harmonics content. I8 p( u+ ]# ?8 U
can be adjusted with the “Clip” control.5 P0 j, X6 l$ p- b: `4 ]1 K* A% W# }
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
3 u6 N1 G. T7 C4 @ dBu FS.% B5 o/ M0 K8 }, o( O# E$ Z9 J
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
0 X) f' A% F; L' X4 `. |% ^ desired channel. y9 q; n" H- j4 e6 W4 S3 S
The “VALVE” LED is on when the Valve Dignifier stage is active.' g+ P' w; l9 }+ g8 V+ B. J$ D `
[9] INSERT INSERT function.8 `3 D& j" {+ W0 @4 C0 S( {
First key pressure: INSERT POST VALVE, the Insert Send is tapped after2 ]! e7 n9 I/ `1 w; n( L
the valve stage (display: “INS”); the Insert Return is directly fed to the Line# v3 H) _& \, C) S! M
and AES/EBU outputs.
; N' f4 `& |' n. Z- |, w Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before. K! ~. _' f0 n6 |, X7 Q
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via2 T" y L6 ` h5 W% ^' F- r
the valve dignifier stage to the Line and AES/EBU outputs.- y m: T J7 R: n6 A
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier$ C+ I0 F, l- f* g7 H
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output; X+ e6 W- @- b2 t2 g
receives this signal; display: none).# l! t i$ o& d0 T) J G) _- Q9 U" \
Insert Send and Insert Return are electronically balanced and equipped with
5 ^; e7 V K# M- h3 W+ E& F XLR connectors.
, \) D" l9 ^% Q% Z; j+ t0 D[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
2 P9 x% t, {' {) D' w6 m/ }+ |3 l ADAT digital interfaces. Each input channel can be switched to one of the3 V5 t$ @, s% c$ S! ^$ H! u1 `
channels 1...8 of the multichannel interface. If desired, also a mono mix is
& `- {) J. t5 E possible by selecting the same output channel for both input channels.5 a$ @5 h# Q1 S' N& @) J
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone w! R' N: B6 h/ D) I# y1 ]
channel.
( H+ P' b& O! e) u1 s8 C, o Can be operated only if the input gain selector is in Mic position. The
; q; G' t( D( O. l4 Y6 [# h, j+ i3 q setting remains stored when switching over to a line gain setting.8 u9 ?* f7 i! b! d( T' `
[12] Activates the high pass filter on the microphone inputs of the desired channel.+ g# h- A, A; b3 |, z
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
4 b! g4 ]" ?6 p, D$ O1 s Can be operated only if the input gain selector is in Mic position. The6 b# V1 p0 c% o" f
setting remains stored when switching over to a line gain setting.* r& c( ?& N, F0 |/ F; x
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
4 q" y8 F9 u8 n7 }[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
, R3 ]9 s% ^* R “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
; _- [0 A+ l' w; D9 s' M* w Noise Shaping (display: “16NS”) can be selected.% F! ] h; H9 n: U1 c+ k6 M; E9 i
[15] SYNC Selects the synchronization source for the unit. Possible selections are:; n% l& i9 c7 c! c
INT 48 Internal quartz reference, 48 kHz( j6 O: I( g+ ?) x% G
INT 44 Internal quartz reference, 44.1 kHz, }! c! p8 s; |
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)* W( U' [2 D1 w6 B
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
$ X. G, Y: `* B& e7 h# R2 D AUTO Selects sources automatically in the sequence AES-WCLK-INT6 f3 N! g& N( I' I* |
VAR Indication only, active if the external source frequency deviates from 48 or/ C. M6 O& R# D, N: ^
44.1 kHz for more than approx. ±3 %.' B; O7 N8 u: H4 y% v o2 x. ~5 q
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –! N& U: {* @# W% B
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.) S6 f9 i( ]# c d& }
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce( j6 u# t3 c8 X1 \# g( I
the danger of overloading the A/D converter with short signal peaks (if+ p: K4 s' V6 S" G& P; ?2 b6 b
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
0 _7 N/ a7 V; m9 _! a5 o' Q0 ]* U allowing for approx. 6 dB reserve before hard clipping occurs0 L9 x) M0 i z, ~
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