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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 . Q; H/ S! C, s! _/ S
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! K9 _1 b0 e# \# q% t' l- m2 i" Y, |! `英文电子说明书. `8 \1 _# ]" V! U9 l! f
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
0 Y% V& I7 o+ k! G/ X default settings. The subsequent settings remain stored in a Flash EPROM
) R0 }( `* C" A; S3 r( x0 P after switching the unit off (unit contains no battery).
, w1 q5 s% O6 b( n+ h2 g' e[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position. Y7 i4 @, ~. y! o
between microphone and line sensitivity setting ranges.+ E- T. C; L) Q! P v. d- b/ W
Mic: Range –40...+20 dBu
# ~$ p. D1 i2 N/ m, i Line: Range +14 dBu, +24 dBu# o* V! r' z5 Y; a& E; K( I
[3] Fine Gain Potentiometer for fine input sensitivity setting.
# C# L: `& D/ {2 G' W Range of additional gain: 0...+15 dB.
0 q$ @8 w7 f9 i7 B4 n Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents4 P' z3 A/ \8 t7 V: z
the dBu value of an analog input signal which causes a full-scale output of1 x" S* _. ~4 X8 P1 C
the A/D converter.
3 o; g6 u0 `4 w Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
- O/ G( T+ c4 a* v the peak level is therefore +16 dBu. The “Input dBu FS” rotary9 P+ `9 n- U I% {
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine7 f! ~' G5 A5 j& F& _4 }
Gain” potentiometer [3] increases the gain by 8 dB.3 @: M7 M& S* X7 ]7 G) _, f
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
( z) S# S5 U7 G3 a[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals2 V3 _8 f: o9 ~; G7 o% N1 P" ?
have more body; percussive instruments are less aggressive.; h8 q# _ |+ o' j) j
The group delay behaviour due to AC coupling of the stages is different in
; l6 d6 {# a. \- o( _: W tube amplifiers.' z9 Z' }/ u, Y8 r3 F
The “Bass Warmth” control allows to select the frequency range0 s* {- m6 D) r1 v0 O6 H/ s
(10...200 Hz) within which the effect is active.+ [, L6 ?( e' }- L
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.6 V# [$ V2 Z7 e
Valve amps have a characteristic response, mid-frequency harmonic content/ J# e- p8 C, p# s( P$ z: m$ j3 X
is emphasized.
5 ~' H3 l) j5 R7 D" U+ J[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
" d$ ~1 {! |# V# R, h# l/ K5 b The harmonics spectrum of a delicately overloaded valve amplifier is completely
: k+ f) F4 O+ y7 a. D- K; P+ Y( V( e different from an overloaded transistor stage.5 m4 j$ a3 V' |4 N B: M0 i
The “Gain” control adjusts a gentle overload while the odd-harmonics content9 n7 Z- y" v+ d
can be adjusted with the “Clip” control.
( `. V# K: q5 v8 ?( s[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
+ F9 r8 W, y; p! a/ W' G0 g: W dBu FS.* T+ e' Y/ L: G, D7 H( E5 d% B! A
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the& V( f: \: f, R$ p# F" H
desired channel.% O3 t; i% k6 S3 l
The “VALVE” LED is on when the Valve Dignifier stage is active.
5 I* D$ S8 S$ x& p/ X d7 N/ ][9] INSERT INSERT function.
5 U1 T0 U% X3 k0 v First key pressure: INSERT POST VALVE, the Insert Send is tapped after
6 A: n: K" s6 w8 a" D, z the valve stage (display: “INS”); the Insert Return is directly fed to the Line
+ n6 z; Y5 d' p- \0 ?7 ` and AES/EBU outputs.
4 E3 E3 j5 u+ W7 x Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
2 @ N3 N2 e# D2 W$ L/ j the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
1 K1 F: b4 k8 s. A- w the valve dignifier stage to the Line and AES/EBU outputs.
! L3 Y* G; D2 Y# T! c Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
+ K1 S% Y8 j; Q7 z" ~: V) w stage (if active) to the Line and AES/EBU outputs (also the Insert Send output3 J; \6 q. C) ]) K I
receives this signal; display: none). `5 F% u! z7 p6 t& k4 I5 K) c
Insert Send and Insert Return are electronically balanced and equipped with
/ z0 l* x( O8 J$ m. E4 \ XLR connectors.2 a. @. I) ]% N3 T( R. ]6 U
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or$ l) l! z2 v# _) \5 P$ l0 q: Z
ADAT digital interfaces. Each input channel can be switched to one of the$ Z2 O5 L2 d4 K. @
channels 1...8 of the multichannel interface. If desired, also a mono mix is% r' ?0 ~! [$ `& D; i1 y9 b# |0 G8 P
possible by selecting the same output channel for both input channels.5 m9 c% i/ \7 n% P d" L$ f
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
6 `6 H$ Q* x% i$ _ l( Q; A" @4 Y channel.. H- x$ y& [) j5 J8 a2 G& E
Can be operated only if the input gain selector is in Mic position. The
: b6 a6 [+ W2 u6 N: j; |" a1 I setting remains stored when switching over to a line gain setting.
1 R* z. k: R7 I: n2 f3 A' j8 Z[12] Activates the high pass filter on the microphone inputs of the desired channel.
7 ]' f( ?' G' v" N5 X Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.$ D7 {+ \ w. o, Y. K
Can be operated only if the input gain selector is in Mic position. The
; g% V2 q# P) a/ o- j. G, J setting remains stored when switching over to a line gain setting.$ n7 t$ C6 m/ @3 [
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
- \8 l; D7 y7 f, Y[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:' A# f5 P9 ?$ e0 M9 w8 Q
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
/ B! A" ?) p1 Y) O9 M3 B Noise Shaping (display: “16NS”) can be selected.
" J4 b% R" c, i1 u! N" \[15] SYNC Selects the synchronization source for the unit. Possible selections are:
1 _$ h D0 g0 {% o0 G! E8 ~4 r INT 48 Internal quartz reference, 48 kHz
L) [$ A u) B- w8 f7 ]% i8 o INT 44 Internal quartz reference, 44.1 kHz7 {# O2 {# K4 w2 f7 M" V Z
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
7 {9 Z0 I5 |" D1 ] AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)9 J# g$ r7 a+ M' j+ T- R
AUTO Selects sources automatically in the sequence AES-WCLK-INT$ E6 _4 x* |8 c g/ U) G |1 Q
VAR Indication only, active if the external source frequency deviates from 48 or
. g4 z, ~4 V6 X2 ~9 y. w; j 44.1 kHz for more than approx. ±3 %.
" n. n& T4 v# w! v3 t; p[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
. G0 C" }1 ?9 x# ~7 [3 ^ either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.# L! U* G9 n' @2 i/ F! G
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
! n% w( S! g& I& h) ` the danger of overloading the A/D converter with short signal peaks (if
+ Z. J V6 E8 [- k+ X active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,2 i( g2 o+ i: G. N. G
allowing for approx. 6 dB reserve before hard clipping occurs
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