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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 8 i# U1 {* Z4 S/ `! S
* @+ m$ U0 m9 s8 [( \8 x英文电子说明书
) ] Z7 F R" w: Y- E[1] POWER Switches the unit on or off. The unit is ready to operate with the factory5 T2 v' Q% Y5 Y* `
default settings. The subsequent settings remain stored in a Flash EPROM
; a8 |+ j- T1 q$ `0 \ after switching the unit off (unit contains no battery).
% Q9 u4 M; n9 m( t( c. Z[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
! A$ o. g! B" G( Z between microphone and line sensitivity setting ranges.& z, ]. O& j2 h0 ?* @
Mic: Range –40...+20 dBu, ^% v3 L6 Q" k9 }, d
Line: Range +14 dBu, +24 dBu; M% F1 F2 V3 K
[3] Fine Gain Potentiometer for fine input sensitivity setting.
+ e7 N- m& _& Y& T6 ]6 G Range of additional gain: 0...+15 dB.
" Q/ u6 ?4 `% [+ g) h; O Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
6 h) |: z C% C1 A3 e the dBu value of an analog input signal which causes a full-scale output of
) Q+ I D% M& }$ [ the A/D converter.; k5 @2 l& ?- x! r9 N
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
3 C: k; m& \9 t' {/ B ~8 V5 F the peak level is therefore +16 dBu. The “Input dBu FS” rotary. F) ^% Y& d0 [) b$ k
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine2 x$ E' d1 o* q& i5 V+ x) B
Gain” potentiometer [3] increases the gain by 8 dB.
1 F8 O B5 j1 C6 y# w" I: Q/ W4 b[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active." @8 X) [ D) Z# D) k H
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals; r" Z" I' |( m) [
have more body; percussive instruments are less aggressive.
5 Y4 U" C! v, J( A7 F The group delay behaviour due to AC coupling of the stages is different in, C) ^( b4 p0 q, b4 L; M* k" P0 e: x
tube amplifiers.9 Y5 P+ I$ u3 O, `
The “Bass Warmth” control allows to select the frequency range. d) m( Y; e5 T/ E/ r; z
(10...200 Hz) within which the effect is active.6 Q8 [; ]2 y9 p
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.3 X, h: J, x& ^) D2 c) Z
Valve amps have a characteristic response, mid-frequency harmonic content
4 S3 ^5 M' [0 a9 w' D2 T is emphasized.
+ N/ D# [# B2 K7 q( T. z" D[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.2 X1 P6 {# w! E
The harmonics spectrum of a delicately overloaded valve amplifier is completely
+ U' p: V/ V0 R& @( ^ different from an overloaded transistor stage." a$ q6 H0 |: F4 k5 E
The “Gain” control adjusts a gentle overload while the odd-harmonics content+ m/ X, |2 g8 A5 n5 J
can be adjusted with the “Clip” control.
/ N' B' l; _! s! a[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
3 ]& ?9 w' ~# R" j- \% E" j2 Q. k$ Q3 C dBu FS.
) r7 |# q0 U+ {( T8 x, w, r/ n; b9 w, u[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the% V% N' m; R# Q
desired channel.. Z* [' p, q4 _+ z( \# V
The “VALVE” LED is on when the Valve Dignifier stage is active.- n) D9 ~& z" o6 _$ y4 T
[9] INSERT INSERT function.% i( b, ~5 f& `
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
( K' g O5 g1 L6 i) s" G5 a the valve stage (display: “INS”); the Insert Return is directly fed to the Line4 h/ n0 J. M5 F; w: \$ G: N
and AES/EBU outputs.
2 y+ R% g% P {9 s6 h o. x Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
# w7 d$ S: z+ C- `6 F% I' g the valve stage (display: “INS” and “PRE”); the Insert Return is fed via- w8 a7 s8 P- }- w' E b0 `$ U
the valve dignifier stage to the Line and AES/EBU outputs.
# r4 z- M2 c5 T) f Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
$ ]& x3 [8 k( R$ r$ V4 g# ] stage (if active) to the Line and AES/EBU outputs (also the Insert Send output0 |: p7 R( z" T( W0 N, m8 \
receives this signal; display: none).
/ X8 [7 L" T* R9 T/ z Insert Send and Insert Return are electronically balanced and equipped with9 }4 Y7 L3 d! a: j( L
XLR connectors." h# b$ k( u3 w. Z2 y6 h
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
% Z* `6 d3 X* N3 } L ADAT digital interfaces. Each input channel can be switched to one of the
2 q- J" h; W8 b0 x c. P6 [ o channels 1...8 of the multichannel interface. If desired, also a mono mix is |3 b4 f2 J, s3 J% \* X% s
possible by selecting the same output channel for both input channels.. J( [; s; d7 \' h; r1 M
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
, k6 F$ S& n* d) B* D4 P( G channel.
: E/ x9 a; a% c; a Can be operated only if the input gain selector is in Mic position. The
4 ^% {* q5 }, K setting remains stored when switching over to a line gain setting.
) X- j! r- ~7 o* d* @1 s[12] Activates the high pass filter on the microphone inputs of the desired channel.( D/ F" F6 y- @: Y6 l8 k
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.1 |, K: b0 t" c9 w) o; D
Can be operated only if the input gain selector is in Mic position. The* l8 P! ~; i8 F' [
setting remains stored when switching over to a line gain setting.$ z' I% c0 P" A9 s* M
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
/ l" A0 C6 F; x! W$ f: {[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
0 }, h7 m# Z9 Z0 a+ z, F C. [ “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
Z7 q+ [0 J- P8 K, A9 ^ Noise Shaping (display: “16NS”) can be selected.! _6 Y- K: j; ~ O+ @
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
( Y' y9 O) A$ e* G1 ^- [ INT 48 Internal quartz reference, 48 kHz! f" S3 e( J1 _, a0 P; G1 u# c
INT 44 Internal quartz reference, 44.1 kHz3 G: b. y/ j3 w8 t2 r
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
) l5 \1 H' W" Y$ {7 N% W/ j AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
+ Y! r0 C4 w! F9 T `! o# g AUTO Selects sources automatically in the sequence AES-WCLK-INT
1 t; G- Y) t4 x. G& m! F7 e) a VAR Indication only, active if the external source frequency deviates from 48 or! J @' x" T% }& ~+ u
44.1 kHz for more than approx. ±3 %./ q& B6 L9 @: K Q6 G
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
, x' {2 U- Y0 Q! E either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
& M; A4 z3 ~2 y# Q7 N0 k[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
2 i( t2 Y7 J+ t1 e! X5 U' [6 W5 y the danger of overloading the A/D converter with short signal peaks (if* f; y. j# r, e8 Y
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
+ m0 g4 ^/ c+ `( n2 m allowing for approx. 6 dB reserve before hard clipping occurs9 e4 Y" y1 A- O8 z. _& K, c J: i
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