|
|

楼主 |
发表于 2012-5-20 00:04:04
|
显示全部楼层
本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 - C$ A! ?( b5 s' z1 H( A5 ^, T
& o' K0 O3 t6 }& h s7 k ~
英文电子说明书5 Z: y7 K: w6 r L) M1 `; m% d
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
6 w( m" ^4 ^$ f% j default settings. The subsequent settings remain stored in a Flash EPROM) L9 f6 Y1 |+ X$ b! t, q" [
after switching the unit off (unit contains no battery).; u7 \- z" f' ^9 I6 ?; Q
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
' `% N6 R9 N- p& |# ~ between microphone and line sensitivity setting ranges.5 _, w* x' U# Z+ M1 H# {9 b5 a
Mic: Range –40...+20 dBu
, I* ~8 J$ Y7 I, n Line: Range +14 dBu, +24 dBu
2 e7 q+ U6 Z. m4 y1 m+ r3 \6 x[3] Fine Gain Potentiometer for fine input sensitivity setting.
4 o% i+ o) \: k9 N Range of additional gain: 0...+15 dB.
9 L3 ?3 D9 i" u: m Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents" E' K+ h) }/ Y4 e0 G
the dBu value of an analog input signal which causes a full-scale output of
4 Q' }2 a. ^& B. h2 `, ` the A/D converter.3 ^: u9 v! q7 J% X6 f
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;$ z9 w/ k- z" c
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
" T& r% L9 ]" Z7 C% q0 n switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
* U u( e* k! t! L, Z- U2 z Gain” potentiometer [3] increases the gain by 8 dB.
$ C ^7 l' Q4 x6 M8 g2 o[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
* r) I' l) z7 L" z[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals) K* d* s: E' `8 n1 B: h# r5 [$ u
have more body; percussive instruments are less aggressive.: N: S: q7 j6 R5 O5 [2 O2 e
The group delay behaviour due to AC coupling of the stages is different in
4 K( F% m4 N, c: j( d x$ T tube amplifiers./ Z- h$ X; k i5 Z4 H/ ]" [
The “Bass Warmth” control allows to select the frequency range
- `, I: H! C: j a' t! X1 E (10...200 Hz) within which the effect is active.. t9 g; C- Z4 A( y
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.4 ^7 y8 j- {& V# x
Valve amps have a characteristic response, mid-frequency harmonic content
1 d7 v0 C* [, _+ } is emphasized.
H2 ^5 J. K. v0 e% D' j, @) f[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.1 y. {/ W. ?4 G* _, Q
The harmonics spectrum of a delicately overloaded valve amplifier is completely N8 j' d' [; X0 y* M6 u/ b% y2 [
different from an overloaded transistor stage.
* y. F1 J6 m2 |2 _4 Q& w. @4 T The “Gain” control adjusts a gentle overload while the odd-harmonics content! B. C# _, `* R; b! f' w
can be adjusted with the “Clip” control.
1 c4 \2 P. R! l- Y. U6 s0 n[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...246 ^+ L# O- H: K: r$ }3 n
dBu FS.% g; V1 i9 M; W, O
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
1 e& o8 x; \& D* \$ G/ Q desired channel.0 l5 u) u3 A) d, R' o& G3 q- q! V3 Q
The “VALVE” LED is on when the Valve Dignifier stage is active.
5 @3 M( I5 B/ u) l I9 }[9] INSERT INSERT function.' w* U0 g/ [' o8 @
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
; b/ z* Z! |1 A' b4 ?3 w. q6 Z the valve stage (display: “INS”); the Insert Return is directly fed to the Line
D0 q, n, Z7 |5 ^ and AES/EBU outputs.
/ j0 L$ _5 `( L$ x$ u Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
% M4 a8 v; V( W- g the valve stage (display: “INS” and “PRE”); the Insert Return is fed via2 \& V0 M& W$ ~
the valve dignifier stage to the Line and AES/EBU outputs.
6 R; W: N* ]) ]7 t9 r Third pressure: INSERT OFF, the input signal is fed via the valve dignifier" Y4 ^) ^" v! N0 Z
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output$ y; I6 B- Y. `; U: C9 A4 D r/ U
receives this signal; display: none).
6 c% n" v+ s7 @5 K+ h; h7 B E; B Insert Send and Insert Return are electronically balanced and equipped with) y, t! J3 _; i" a
XLR connectors.
/ o' G, s1 Z% T! A[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
5 e+ [* @4 Z0 ?& f7 P; z0 P( B ADAT digital interfaces. Each input channel can be switched to one of the; P M) Z8 b1 D1 J' } [4 ]
channels 1...8 of the multichannel interface. If desired, also a mono mix is1 M7 b4 ?* }, J$ k; M0 N. r! T
possible by selecting the same output channel for both input channels.+ n0 h: R$ m5 s
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone- g+ {& C# x) j V0 r- \
channel.# v4 t. `- v) D
Can be operated only if the input gain selector is in Mic position. The. b! x4 _( \+ J$ B9 W1 [
setting remains stored when switching over to a line gain setting.9 B: Z& p& A" i- X6 o8 p+ {
[12] Activates the high pass filter on the microphone inputs of the desired channel.# X3 D( o$ g& q: r5 h3 s, l) P5 ]) R9 S
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
2 B! L8 z" W9 F$ U Can be operated only if the input gain selector is in Mic position. The! c) {# V# J b/ J
setting remains stored when switching over to a line gain setting.9 O, r+ C* J4 B8 v
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.2 d* y: @1 y: u5 y0 |
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:; A3 E+ w" j& i) D4 D9 Z4 M
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with' N3 |9 r0 F/ K, A4 a6 r
Noise Shaping (display: “16NS”) can be selected.
) r" l- O8 f9 @/ y& C1 ?3 m0 `[15] SYNC Selects the synchronization source for the unit. Possible selections are:
1 V# `/ z4 k! ~2 ` L& _% |- T INT 48 Internal quartz reference, 48 kHz: R3 ]1 V; K5 J! B! o- M
INT 44 Internal quartz reference, 44.1 kHz% t! [8 k9 C% S
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
/ T/ H s$ C4 U4 y0 a8 L AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
4 `6 S1 h1 s/ c& o D& l7 z AUTO Selects sources automatically in the sequence AES-WCLK-INT
, y5 V" c. Q( O2 }4 Y VAR Indication only, active if the external source frequency deviates from 48 or; j1 J% e. g+ G
44.1 kHz for more than approx. ±3 %.2 g; Q) |3 _& G, K0 x) `9 c8 K/ {
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
\; O/ [* Z- A; W either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.( d( X+ s1 P' x4 E7 U) ?
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
. z- N+ K+ q2 a/ z& g- I the danger of overloading the A/D converter with short signal peaks (if
: j* ?4 v" q+ I9 G1 u! ~ active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,8 _# |& q: C2 Q2 k+ |* D
allowing for approx. 6 dB reserve before hard clipping occurs- Y7 q; g! \) u4 P, E, Q; t
# }' U) j! m; c/ B1 L. S, T/ F
|
|