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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 ; H9 X0 E- {4 H* L9 ]# @
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英文电子说明书
6 z- s# l/ `+ T$ @& x' V[1] POWER Switches the unit on or off. The unit is ready to operate with the factory6 d o8 j6 P! a u7 Z! i4 z
default settings. The subsequent settings remain stored in a Flash EPROM
7 }) Y! l, a' c+ I* w- r4 M3 w after switching the unit off (unit contains no battery).! D6 z' x) b$ h( ~' b, D+ O
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
% h1 W2 k1 _7 x$ q2 h b0 y between microphone and line sensitivity setting ranges.% C: ?: G; Y: L+ t
Mic: Range –40...+20 dBu
4 e' V b2 P1 R E4 J Line: Range +14 dBu, +24 dBu
. h- ^$ I' O$ e0 a8 p, a/ R4 O[3] Fine Gain Potentiometer for fine input sensitivity setting.
/ R4 K/ Y( @7 n3 c! h* M) `: H Range of additional gain: 0...+15 dB./ U$ l7 f% R, b7 B7 b1 G
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
0 j( Q1 E( G9 l3 w4 N" _ the dBu value of an analog input signal which causes a full-scale output of
( R# T" t; K6 G, Z# @( C the A/D converter.
8 h) v$ A; Q! d# H1 t Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
/ r# ]) [6 R2 M9 L& G the peak level is therefore +16 dBu. The “Input dBu FS” rotary
' e; s0 v- |9 c% f s switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
. i. s' u0 Z h1 C: A/ A9 M- m( l Gain” potentiometer [3] increases the gain by 8 dB.9 Y/ h6 x' X g/ f+ {$ T) b
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.1 s$ N* C4 m& f! v
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
+ {7 a6 t# V/ i: @$ ]6 L have more body; percussive instruments are less aggressive., g$ Z) d- v* v
The group delay behaviour due to AC coupling of the stages is different in) ]! z) I# d3 f+ b# |
tube amplifiers.0 c |- T8 B- F5 F2 [
The “Bass Warmth” control allows to select the frequency range
( a# D- S+ N1 \% Y% T" U (10...200 Hz) within which the effect is active.
3 ^) [; ^/ X' j[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
# ]" k6 M- P1 A7 W Valve amps have a characteristic response, mid-frequency harmonic content
7 ?) \' D* U" Z8 d! ~4 W" L is emphasized.) u- B% i# T, L/ f# k* e
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
' Z, b5 q" v1 y1 `7 m4 d The harmonics spectrum of a delicately overloaded valve amplifier is completely8 _. G, q' M( k! h: P$ z( C
different from an overloaded transistor stage.! @/ g' v& P- w& K2 ^( \- B0 }" [
The “Gain” control adjusts a gentle overload while the odd-harmonics content
+ L" E. y; r! g7 o: H5 u/ S can be adjusted with the “Clip” control.5 K9 k% K( ?: J; P, T! _3 H" Z/ q3 p
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
5 k0 e# r" T& r7 c4 S6 E8 B dBu FS.) q- K5 Q$ i, b) K3 i4 k
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the; Q3 \- r8 o( A: N. e
desired channel.# {/ l3 U( T% Z+ C n! k
The “VALVE” LED is on when the Valve Dignifier stage is active.; {+ k4 A7 N4 F; X6 U
[9] INSERT INSERT function.
+ v: J% i7 W# @7 j2 X% x" W First key pressure: INSERT POST VALVE, the Insert Send is tapped after, x- M; q4 ?* v
the valve stage (display: “INS”); the Insert Return is directly fed to the Line' j) P- y* f9 @ X6 N P
and AES/EBU outputs.8 R2 C& O+ Q- }
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
( j) t0 K" {/ a1 d; }3 n& s the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
9 i- W* j9 t% G' v6 k the valve dignifier stage to the Line and AES/EBU outputs.7 ^! D* N& {% T& |- f
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
0 Z5 F+ c( o/ N( Y stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
% K6 `: k9 p1 x0 @# E" @/ [ receives this signal; display: none).! g. f9 {' R6 N) S# C
Insert Send and Insert Return are electronically balanced and equipped with
# y) _7 m0 f& I* Y8 @; g' _, o6 u XLR connectors.2 e/ ]# t* T1 f7 O) i( \
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or# R: r& [ `3 b) ?+ A1 J" y
ADAT digital interfaces. Each input channel can be switched to one of the3 l, `- H2 z: B
channels 1...8 of the multichannel interface. If desired, also a mono mix is
6 z, F5 O" ]$ l& {: | possible by selecting the same output channel for both input channels." c7 N( d8 I) w3 p
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
' ?# b3 U8 Y: G& D channel.
& s. r$ f7 w& U Can be operated only if the input gain selector is in Mic position. The) Q4 J/ C' j' y& G9 @& `
setting remains stored when switching over to a line gain setting. k5 k8 l" x. O
[12] Activates the high pass filter on the microphone inputs of the desired channel.
8 l1 f. J7 H, D& B Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
- v: N$ X2 W8 r Can be operated only if the input gain selector is in Mic position. The" |( P, F! V6 l; D& ]& W3 [1 r
setting remains stored when switching over to a line gain setting.
; I J8 E+ ]+ p, w, n[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
4 } F7 ?" J% n( L6 o- F[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
7 ?$ L! G0 H8 L “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
9 R8 w& v$ u. M e) K; q# l Noise Shaping (display: “16NS”) can be selected.
y! i# m' D0 k% m( p) U: K[15] SYNC Selects the synchronization source for the unit. Possible selections are:
% u5 G- Y% t. ]: C INT 48 Internal quartz reference, 48 kHz
, J Z6 ]% J; |7 ?7 [ INT 44 Internal quartz reference, 44.1 kHz
; G# q$ m$ ^) ^8 v' P, T) z WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized); ]. S ^) V% f) ~/ F* d. I5 W. V
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
7 _# K+ A7 U; X: Z AUTO Selects sources automatically in the sequence AES-WCLK-INT. F" C' _7 F, H) K& Y8 `
VAR Indication only, active if the external source frequency deviates from 48 or
" g1 p6 F, z* B7 _ 44.1 kHz for more than approx. ±3 %.3 x {) h9 N) I5 @& a3 H
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
) d6 @) J4 O& E8 t4 m( [ either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
, i6 l# t7 ?/ b8 `7 T[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce3 j7 d( D8 ?" N [7 _" T
the danger of overloading the A/D converter with short signal peaks (if7 w1 p) y C( v/ X& ]# _
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,' ?2 n1 ~- |/ p8 D1 l% O6 h
allowing for approx. 6 dB reserve before hard clipping occurs
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