|
|

楼主 |
发表于 2012-5-21 23:23:18
|
显示全部楼层
本帖最后由 dan3963101 于 2012-5-20 00:12 编辑
; q! N. B* _) G2 `/ D$ S, c! M: c6 @) z6 @+ ^
/ S$ {; P. p# `* L) Q; j- K! o
英文电子说明书, e, q$ i* {5 e0 x7 H: p* \: x9 w s
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory9 c5 [* `. v) v( r
default settings. The subsequent settings remain stored in a Flash EPROM
+ b( r# p/ t% T8 K/ z; X after switching the unit off (unit contains no battery).8 t6 G) ?- T/ G1 {) J) o
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position# d% f- t+ { c7 B& M
between microphone and line sensitivity setting ranges.
* k+ c3 e4 b" f3 u0 b Mic: Range –40...+20 dBu- D) m5 ~& D7 {/ p
Line: Range +14 dBu, +24 dBu
' E* L7 U" e" r5 c% p[3] Fine Gain Potentiometer for fine input sensitivity setting.9 u% [* b: g9 m/ @9 C8 y
Range of additional gain: 0...+15 dB.
/ P/ v7 g& @- x! `4 f- b Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
& D; E* y L6 J( c p+ B the dBu value of an analog input signal which causes a full-scale output of1 t0 d# u# Y9 G# L! V: k6 T
the A/D converter.
! _4 y! g# y3 q Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;+ d, G8 d3 q5 L3 ~* U+ X7 V6 k
the peak level is therefore +16 dBu. The “Input dBu FS” rotary6 W- x9 I/ Q' ]8 N' {- p
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
4 s2 B" V* M) i( M( C Gain” potentiometer [3] increases the gain by 8 dB.
1 k5 [: ^ [; R" @[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.1 G* B# s/ }7 d
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals( E' u( W9 a! R/ F
have more body; percussive instruments are less aggressive.* J8 j B. X! K/ i0 ^/ e
The group delay behaviour due to AC coupling of the stages is different in" Q( f. f6 n) e) d V
tube amplifiers./ C: v9 f+ |3 M! i$ H% d" J, V
The “Bass Warmth” control allows to select the frequency range
[$ c- D, |" t$ U (10...200 Hz) within which the effect is active." l: n" S* E" @$ |
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments. ~3 |. O! q# {3 C$ H# S& f+ v5 k
Valve amps have a characteristic response, mid-frequency harmonic content
V* l1 G& L% v9 v is emphasized.' j% h! _' Z2 o+ `4 A; |
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
/ n7 ~- ~* R$ c q( t; e {" l$ b The harmonics spectrum of a delicately overloaded valve amplifier is completely
7 X4 G/ m% b& {( W" z different from an overloaded transistor stage.
1 U: ]$ a4 G, H2 P3 ] The “Gain” control adjusts a gentle overload while the odd-harmonics content. W+ ~* w3 C- a5 X
can be adjusted with the “Clip” control./ @; r! c8 G2 @9 I2 a
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...246 z) U# ?( m4 c# w; ~
dBu FS.
9 ?2 B0 P4 t0 h+ {% D; N' V0 {[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the! \. [1 U2 t1 {5 w, P8 \' [$ P* f
desired channel.
, g Q8 {0 m: { The “VALVE” LED is on when the Valve Dignifier stage is active.% g/ }7 _0 ]1 E# g& a8 ^
[9] INSERT INSERT function.
. W, E/ N+ u6 z First key pressure: INSERT POST VALVE, the Insert Send is tapped after
3 s0 \4 i; ~& x. j/ O5 O6 J the valve stage (display: “INS”); the Insert Return is directly fed to the Line
% B3 o, B" r) g* T and AES/EBU outputs.
% n! u- y% n' G- J* N2 o$ D Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
. a8 E( z% d# C3 n! p' I7 X& Y the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
5 S! ]# b$ [ p" y& p the valve dignifier stage to the Line and AES/EBU outputs.
6 |+ g/ k/ ~3 h. D6 V3 T# q Third pressure: INSERT OFF, the input signal is fed via the valve dignifier1 r+ [$ |8 v* m+ R
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output, F4 ?7 j* Y4 X( f6 L( u
receives this signal; display: none).
$ E" |% D* P' I- ^: B' ]6 n Insert Send and Insert Return are electronically balanced and equipped with0 g# @; Q4 h8 I/ R
XLR connectors., I! W, r6 U$ F9 C2 V
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
. {$ |( A- P- ~9 i5 J ADAT digital interfaces. Each input channel can be switched to one of the7 h$ `2 P$ z9 C6 I) ^2 q) u* p, Q9 ^
channels 1...8 of the multichannel interface. If desired, also a mono mix is
W0 t M6 W l possible by selecting the same output channel for both input channels.) l7 E: j/ O! Z' t* r# T4 Q
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
) \& S3 i8 H# `' v$ a) \% p1 h channel.0 b9 Q/ t) o2 L- L
Can be operated only if the input gain selector is in Mic position. The9 v4 X5 D! M6 j) v: Z3 x! E- F; J& r
setting remains stored when switching over to a line gain setting.# [# ?0 j* g/ j+ w% M0 f
[12] Activates the high pass filter on the microphone inputs of the desired channel.
! a' N9 f p+ G5 U, ~% u, h Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave." d1 q1 h7 Z" b2 e6 f0 U1 L+ M
Can be operated only if the input gain selector is in Mic position. The
% M: _% r: e6 P0 |8 z! E setting remains stored when switching over to a line gain setting.% b8 s$ p# v6 ?: E8 X
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
' v* Q Q" F0 i[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:/ q, V( a Q" L' [4 e8 l
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
+ Y2 o' p- p1 Q$ K: G8 K Noise Shaping (display: “16NS”) can be selected. @% P) [0 K9 ~0 D/ t! f
[15] SYNC Selects the synchronization source for the unit. Possible selections are:( V. I( S2 C' O
INT 48 Internal quartz reference, 48 kHz
# b- S% c. R8 l5 E% w, p INT 44 Internal quartz reference, 44.1 kHz
/ g/ o! f$ Q! {3 {- W WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
) S+ Q& E8 D, q7 G" o0 Y/ G8 V AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
% U& j$ r- Y6 H! ]8 q AUTO Selects sources automatically in the sequence AES-WCLK-INT
6 H' A& M! Z( W3 A, a) C VAR Indication only, active if the external source frequency deviates from 48 or0 f+ O; x( Q& g: t3 P3 m* v1 N
44.1 kHz for more than approx. ±3 %., P4 y# o2 @ R+ d8 N
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –5 o# a$ u5 e/ |* D; c( h
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
5 i: c0 {0 } q$ g# G& p[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
& N. p5 ]4 b* y7 {9 B S the danger of overloading the A/D converter with short signal peaks (if" w* x$ b9 j! {: S( J$ {
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
5 b! K3 C2 F( w" H+ K allowing for approx. 6 dB reserve before hard clipping occurs% _; o0 e3 v% Z+ b" n: W
7 W ?& g2 A4 I3 O8 T q: h
4 r, n5 M6 r# x M1 r' i# r |
|