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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 2 l* g! G) b9 q+ L6 X
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英文电子说明书
' D: L: K+ M" T. I7 ?/ J/ m[1] POWER Switches the unit on or off. The unit is ready to operate with the factory+ c3 d8 M& a# B; O+ q+ W. \
default settings. The subsequent settings remain stored in a Flash EPROM) y6 w! [+ ~$ `6 r# |- p
after switching the unit off (unit contains no battery).
5 j* [" R2 f/ _# {! M[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
r @% o( |1 w, S$ Y; u# Q between microphone and line sensitivity setting ranges. v% G h* K1 ?, H4 A5 B5 h2 h
Mic: Range –40...+20 dBu( w0 m* d e6 @( p
Line: Range +14 dBu, +24 dBu' a+ e& Z. X1 ]
[3] Fine Gain Potentiometer for fine input sensitivity setting.
, Z- B# `( g4 n1 q# Y) f, m Range of additional gain: 0...+15 dB.
M& Y* `" ?7 `' N9 l+ W, r* r Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
) f1 ]# v6 Q U$ r( \: N the dBu value of an analog input signal which causes a full-scale output of6 U; E+ y+ D, t) i! T) w, y3 m
the A/D converter.
' P+ E; I) R/ u* g, |3 ~# U Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
3 B2 p$ d. ~3 ?. \7 X the peak level is therefore +16 dBu. The “Input dBu FS” rotary
$ t$ O% C/ Q' j( U/ H3 y switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine, ]0 G* {$ z. O9 W8 T) c
Gain” potentiometer [3] increases the gain by 8 dB.1 v, V. k; d, ]" N5 w" S
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
: U% K3 S- ~2 Q2 X8 J f# p x[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals5 e/ j8 u7 X2 u1 m
have more body; percussive instruments are less aggressive.6 [4 `- b7 L5 S" ~/ \+ f% ~
The group delay behaviour due to AC coupling of the stages is different in% n" u. J1 z8 E- ~) Z4 w
tube amplifiers.
% Y% p/ J0 a5 N; _5 i ^ The “Bass Warmth” control allows to select the frequency range
$ Z; \0 S C- h) T# h- n (10...200 Hz) within which the effect is active.
: W/ \& {2 b8 ~2 M3 e; S[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.7 K _& O+ O( ], } l- T4 J8 c
Valve amps have a characteristic response, mid-frequency harmonic content1 S' R( ~' w4 E5 C4 c( D
is emphasized.
/ z0 p1 E, ]1 D7 }* C[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
: ?( w0 N- _( D( T4 A8 N7 I The harmonics spectrum of a delicately overloaded valve amplifier is completely8 y: T% F! v; Y$ \2 F' _& ]
different from an overloaded transistor stage.
, S7 j8 h# m4 U0 l* D/ O- r+ ~ The “Gain” control adjusts a gentle overload while the odd-harmonics content
5 r& b( h2 X5 h) I+ E7 ?/ t' i can be adjusted with the “Clip” control.
X" x0 r# T- i3 s3 ~[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
$ i o' [$ p8 L& \0 Y/ ?5 I dBu FS.
2 B+ K: P9 u) r[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the0 s' h: F/ }* D; A, t* B! u
desired channel.
. \0 W t5 v' y( t# b" A The “VALVE” LED is on when the Valve Dignifier stage is active.- l5 \5 C3 Z4 J2 [$ C* J
[9] INSERT INSERT function.% m2 ?4 F! l" e7 O' Q; V
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
$ S4 Z* } n' p) c the valve stage (display: “INS”); the Insert Return is directly fed to the Line% y: T) b) ?) r3 M8 l
and AES/EBU outputs.
9 J) O9 M) F, r, m; j; ? Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
2 _9 @0 ~6 t# V9 n6 ` the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
' ^* H6 G) H3 H the valve dignifier stage to the Line and AES/EBU outputs.
2 c6 K. A. l8 }( _# y Third pressure: INSERT OFF, the input signal is fed via the valve dignifier) l4 |( a# v7 |4 O9 X* L$ ?
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
$ k' x. A+ ]0 M receives this signal; display: none).% D# v/ Y7 f. J+ r, m1 c
Insert Send and Insert Return are electronically balanced and equipped with0 S2 U6 L- s1 F7 A1 T3 i2 F3 `
XLR connectors. A" C0 U' g6 A/ L2 F# R
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
7 P O) D1 p- B2 T ADAT digital interfaces. Each input channel can be switched to one of the
Y7 v" C+ f( @; v1 i/ n channels 1...8 of the multichannel interface. If desired, also a mono mix is
* r. I3 r' {& |! z possible by selecting the same output channel for both input channels.
7 C* m$ M+ t0 i$ k5 p4 o[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
! f2 p6 S( { Z$ c( S channel.
4 o7 {$ j% h# h6 @) j7 ?) } Can be operated only if the input gain selector is in Mic position. The
& d6 P+ H+ E) t$ M setting remains stored when switching over to a line gain setting.
9 E" S+ _/ U/ b5 e[12] Activates the high pass filter on the microphone inputs of the desired channel.9 ^! a3 c+ S' W& L9 H2 ~$ ~
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.+ r+ A/ v6 U, H% F) u: x b7 L
Can be operated only if the input gain selector is in Mic position. The$ u) o% D# z$ l% `1 ^, V$ M8 B' Q
setting remains stored when switching over to a line gain setting.$ y& I3 D' S- h: B# m
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
5 h# \. }, h! r! q" M0 T& D[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:2 b1 u, @) d8 p" z( i9 j, \ w8 c1 I' r
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with! Z3 Z9 |5 n" D8 a7 W. o
Noise Shaping (display: “16NS”) can be selected.
8 N' F4 D6 X7 r8 @[15] SYNC Selects the synchronization source for the unit. Possible selections are:. Y* q5 Y# |0 p2 q/ v" f
INT 48 Internal quartz reference, 48 kHz, X# M8 d5 a) f5 s5 H5 l
INT 44 Internal quartz reference, 44.1 kHz
, p% r) I; Q) q WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
; T$ T: _& |9 I9 c/ e9 E' i2 U$ I2 E AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
- l- d" x, y: G; b AUTO Selects sources automatically in the sequence AES-WCLK-INT
+ F& F) _3 m2 Y& |5 B/ V VAR Indication only, active if the external source frequency deviates from 48 or
, K& y, P3 z: E b D. G+ z 44.1 kHz for more than approx. ±3 %.
$ M! Z) x# n" e7 Q1 ^* x3 a[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –" O1 f# ~6 Y1 p2 l: v, D' i
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
8 n! y' b) t9 |+ z[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce9 n$ A t. X$ f5 p; b
the danger of overloading the A/D converter with short signal peaks (if
9 ]3 ?6 Z, d) v/ F& a5 G active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
K0 u H+ ~/ j, t allowing for approx. 6 dB reserve before hard clipping occurs
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