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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
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$ I: ^1 w+ X, \4 n8 F% }% s& u英文电子说明书
: c( j6 k7 S U% h/ x# R; J! N[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
& X" s' `- g6 D- k: j4 ] default settings. The subsequent settings remain stored in a Flash EPROM3 [; {" [4 O' n; Z) ~
after switching the unit off (unit contains no battery).2 Y$ `2 O; s1 a! i% Q2 R
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
' `& ?. _. k! ` between microphone and line sensitivity setting ranges.* C y% `+ r+ g& o/ o
Mic: Range –40...+20 dBu3 I4 G6 _" S2 `" \ p+ G
Line: Range +14 dBu, +24 dBu
1 k& D/ L+ g5 T3 v[3] Fine Gain Potentiometer for fine input sensitivity setting.1 I2 ~" V6 ]2 u2 i
Range of additional gain: 0...+15 dB." d- {: U L8 K9 J6 C( Y+ K
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents& K% V' s- y; z
the dBu value of an analog input signal which causes a full-scale output of; P6 I: x1 Y9 g8 a+ O: M1 {3 I
the A/D converter. m7 x l. O; s7 b1 x% F( i+ P
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
% s. d" x, [) c4 I4 J+ z+ ?, \+ F/ Q+ C the peak level is therefore +16 dBu. The “Input dBu FS” rotary$ A% U) Q4 F$ W' e2 ^9 ]
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine2 J6 @6 h# F8 u0 \
Gain” potentiometer [3] increases the gain by 8 dB.$ A7 B5 V- _$ r; h9 m
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.( Y4 w( _/ d) T% \
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
+ v, C" V$ O& |' p! }' s( _ have more body; percussive instruments are less aggressive.2 j. b( i( e6 B$ b; [& ]
The group delay behaviour due to AC coupling of the stages is different in; @5 u- e- @4 d' O" p- }
tube amplifiers.$ D5 y8 ~2 K9 C9 n
The “Bass Warmth” control allows to select the frequency range
/ E( H- z3 s9 t8 X c' I+ q# {5 |" e (10...200 Hz) within which the effect is active.
7 E! V+ \) a/ ]/ V9 y[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
/ |8 H k. y, j) X: \4 M Valve amps have a characteristic response, mid-frequency harmonic content7 q- }! h. J) h/ |* K% C/ P& L# U
is emphasized.
6 `+ R- _* s+ {6 ~( \3 t" s[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
$ B% K4 L" N! d The harmonics spectrum of a delicately overloaded valve amplifier is completely9 \% Q' u9 g! ?+ c# J2 `4 n' f: W
different from an overloaded transistor stage.+ [( Z1 l2 \; f9 ~
The “Gain” control adjusts a gentle overload while the odd-harmonics content
5 d7 [4 m2 o/ {: R can be adjusted with the “Clip” control.7 @5 c5 |: M7 D2 p
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
9 S. t1 i/ R0 @9 C dBu FS.
' j' l- t2 t* n[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the0 D% h6 J# n# }9 `' m
desired channel.
. \3 r% ^" Z& r! z9 a7 U' G. e1 z The “VALVE” LED is on when the Valve Dignifier stage is active.% ?2 U2 @- {* f$ ^0 a9 g5 i) o
[9] INSERT INSERT function.6 I* v$ v0 r/ t- ?, U3 w# i; g
First key pressure: INSERT POST VALVE, the Insert Send is tapped after+ f, s, L/ Q' ?- I
the valve stage (display: “INS”); the Insert Return is directly fed to the Line7 x, J# F* F+ f6 o7 L9 I& I9 e- n
and AES/EBU outputs.
; f2 k+ f& @2 m3 V+ I; R# p Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
5 [, p8 m% r) m the valve stage (display: “INS” and “PRE”); the Insert Return is fed via9 Q2 c4 E2 }0 O- Z
the valve dignifier stage to the Line and AES/EBU outputs.
0 C* ^3 s- G* y: z5 | Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
& Y& A! a8 X3 S8 A7 F7 u stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
: ]5 h8 m8 y2 T% M5 R receives this signal; display: none).! i9 L# d1 M# D+ C; [
Insert Send and Insert Return are electronically balanced and equipped with
( i3 `4 n6 d! t$ J# Q* l+ B2 y' Y# N XLR connectors.* Z: h9 O4 {2 `& h* d* v( b
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or2 D2 j6 o. Y3 i, U
ADAT digital interfaces. Each input channel can be switched to one of the
5 `1 S) t9 O4 G0 D) B channels 1...8 of the multichannel interface. If desired, also a mono mix is
3 C9 {" I$ W, B) T possible by selecting the same output channel for both input channels.1 _; V, C- ?4 ^
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
6 [$ i" w1 @' P7 B9 W5 `& u channel.
1 T* ?1 C( D# S2 X1 C8 S& Z% t Can be operated only if the input gain selector is in Mic position. The
0 y9 f6 e Z- {, J setting remains stored when switching over to a line gain setting.) ^; ]6 q5 M& l$ z1 B
[12] Activates the high pass filter on the microphone inputs of the desired channel.
7 t2 ?- ?9 l& J5 v$ z Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.1 }5 S) N1 E2 t. A6 I. U( G
Can be operated only if the input gain selector is in Mic position. The! \* X9 V/ L7 B" }% l/ O3 Q# Z
setting remains stored when switching over to a line gain setting.
% ] p( D$ X" y# L[13] Ø Toggle key to activate the phase reverse switch of the desired channel.( T: ^* P, b8 s9 x! [3 f4 } z5 f3 H
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
$ f4 t; V5 q3 a/ B8 S: a “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
( S# m+ c7 z7 G8 V2 {: S0 s* | Noise Shaping (display: “16NS”) can be selected.$ y% ?2 D* d3 L. l a) [; r
[15] SYNC Selects the synchronization source for the unit. Possible selections are:) `) V/ y: M" ~3 ~. k( x" h/ h
INT 48 Internal quartz reference, 48 kHz) F9 p2 u, ^: T5 X3 ]
INT 44 Internal quartz reference, 44.1 kHz8 x$ [. A _* ~3 M4 @, {5 F9 C
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized), v/ N3 ]- ^% z. Z+ x- a* h/ C
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)& y: [: c; Z* n( c* g8 Z
AUTO Selects sources automatically in the sequence AES-WCLK-INT l @7 l0 E. c; T7 x1 n( o
VAR Indication only, active if the external source frequency deviates from 48 or, u0 J1 Y) m5 O2 Y' I8 P% \/ v/ }7 J
44.1 kHz for more than approx. ±3 %.
1 g. T2 e; z( Y [" m[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
2 N% `' b& b5 ` either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.% ^, Q: q! D/ R1 h
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
9 w( v3 r# {: n' \7 H the danger of overloading the A/D converter with short signal peaks (if1 y) i4 O. `& o1 ]- F9 K
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,- j1 I: W8 U- \- ]4 w- v# P
allowing for approx. 6 dB reserve before hard clipping occurs
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