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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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" N+ I, k4 u' b/ Z4 b4 m6 e英文电子说明书- {; o6 Z3 ]% g s8 g5 }$ \
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
4 E* ?2 X* E, O. U' e, h default settings. The subsequent settings remain stored in a Flash EPROM
7 [6 h6 W1 x1 c6 r+ J j after switching the unit off (unit contains no battery).3 J: G: @. |- P5 e# t" Q; f
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
0 P$ O3 x$ `" Z! z$ A between microphone and line sensitivity setting ranges.
6 r( M* q( q7 R* N H Mic: Range –40...+20 dBu W6 {7 [- _0 y8 w$ i
Line: Range +14 dBu, +24 dBu t/ {/ a8 I3 R
[3] Fine Gain Potentiometer for fine input sensitivity setting.
$ H0 d; I7 ?+ l6 F& H5 X Range of additional gain: 0...+15 dB.7 |0 J+ Z) n7 j0 B7 [$ h" b. j
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents w- K( Z1 I4 T8 |* K( G% Z: T0 H
the dBu value of an analog input signal which causes a full-scale output of2 c2 Q' D p( R0 A: z! S( ~
the A/D converter.
- t) D' M0 {$ H' n Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
6 I! K4 a, q9 N8 ]& r2 g9 m. _ the peak level is therefore +16 dBu. The “Input dBu FS” rotary
: g" |: a6 C% i- R3 c# H& U& U switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
6 |/ B3 P9 G0 P6 R# C Gain” potentiometer [3] increases the gain by 8 dB.) T$ G# p& T; k+ C, p
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.: u' C4 R* v8 R1 i7 d9 O5 q+ ?, k
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
- d7 J! \) S+ G have more body; percussive instruments are less aggressive.
. j8 [& w0 a, ^ The group delay behaviour due to AC coupling of the stages is different in
9 A- N8 s! F, u% q$ O tube amplifiers.
- U" A3 K/ U# }( i, ~! b The “Bass Warmth” control allows to select the frequency range; `7 g# |6 Y- Y3 F9 h
(10...200 Hz) within which the effect is active.# q- {; b+ P0 `; X
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.* A0 W' B( @& m% y
Valve amps have a characteristic response, mid-frequency harmonic content
6 L$ C: T E S6 M% z is emphasized.
0 v ?9 L' E1 X2 X1 N' d9 x[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
. x: j' O2 }; C7 L8 B: y; C The harmonics spectrum of a delicately overloaded valve amplifier is completely
" h0 J: V2 I5 V6 ~1 Q8 T( V# { different from an overloaded transistor stage.
: Z- r3 f: l6 _ The “Gain” control adjusts a gentle overload while the odd-harmonics content
) O: K* A! h, I5 K% E5 G can be adjusted with the “Clip” control.* t) V4 P8 i' k {6 r( g5 w( j
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
0 r. ]9 s: q1 Q; n$ a% F5 o dBu FS.
" s3 i& L5 @9 h; w5 }, j' W1 O% l; r[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the: T( I. t( e5 v2 ~8 y
desired channel.
1 R" [2 j- s5 a( c The “VALVE” LED is on when the Valve Dignifier stage is active.
& D! U: ?& ?4 O, S[9] INSERT INSERT function.
, u0 i* C! D; @% c8 `3 a' _) E2 c, g First key pressure: INSERT POST VALVE, the Insert Send is tapped after
6 @; w* S3 f$ s" o6 q0 L+ L the valve stage (display: “INS”); the Insert Return is directly fed to the Line. M* }+ W; n. N: I
and AES/EBU outputs./ c, I, e8 Y9 i" q+ R7 p" f4 F$ j; |
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
6 ^4 v% A# i4 x/ [! c the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
: t( \( j7 E% H W% u& k& X the valve dignifier stage to the Line and AES/EBU outputs.* t3 u) [3 Z! U% i& C- @
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier1 n2 q+ A& b8 b
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
- T3 }8 D5 M/ [4 L8 q1 w receives this signal; display: none)." w% {" U* X% h0 c; k; r
Insert Send and Insert Return are electronically balanced and equipped with
, L+ U5 q% I; u; j2 m) k XLR connectors.+ f" ~* G# e2 o6 i3 G
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
! c! P; L0 W" r+ \7 F2 k ADAT digital interfaces. Each input channel can be switched to one of the
1 x' l6 K' ~- L9 n* @ channels 1...8 of the multichannel interface. If desired, also a mono mix is, b* o7 O+ `- b* C. s
possible by selecting the same output channel for both input channels.( C9 |, i+ v# n
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
9 a* G, c) O9 g0 S+ k7 _ channel.
( h- X! ?" F/ U3 c z& j Can be operated only if the input gain selector is in Mic position. The6 Z6 }8 I W. T! }+ Z2 d
setting remains stored when switching over to a line gain setting.! G5 M3 Z$ o; D/ R0 W6 @$ _9 j
[12] Activates the high pass filter on the microphone inputs of the desired channel.4 n$ u6 W$ y' I6 g
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
4 D7 ]+ f2 K% W, H Can be operated only if the input gain selector is in Mic position. The
& R1 P& W; z% ]6 m$ t' Y2 j% s7 d setting remains stored when switching over to a line gain setting.
: Z% Q! @/ D: C" c, q" s! G' l4 f[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
: S. e5 B. F+ g/ T& u. _% j. ]2 S[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
, H; m" Z j! j8 r5 u& j$ W, S “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
4 K" X3 h! i1 k d; C Noise Shaping (display: “16NS”) can be selected.
: s3 H j6 d3 }; p5 R6 E6 c; r4 b[15] SYNC Selects the synchronization source for the unit. Possible selections are:) }# q% d2 R6 N
INT 48 Internal quartz reference, 48 kHz
* Z+ L- C" C) e" l- x w8 J0 e INT 44 Internal quartz reference, 44.1 kHz
5 N+ {* a# l4 j6 V1 k- M- q WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)) `$ i D! M/ [1 M! @+ l. x; ^- O
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
1 K9 A: v* p8 B& e; |' }2 S AUTO Selects sources automatically in the sequence AES-WCLK-INT
# ~' [+ X6 C* i4 S: K- `* e VAR Indication only, active if the external source frequency deviates from 48 or
: d4 a) T: t# ^7 y- v# q 44.1 kHz for more than approx. ±3 %.& {3 `1 M% N3 x' D1 G1 A& g
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –% d; y, O4 j6 e! L, p, I
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
! s' I5 j9 C3 J, n7 [[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce3 x* B& I7 X9 d# y. E8 G N
the danger of overloading the A/D converter with short signal peaks (if% e3 ?0 A- s; K3 P
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
7 {3 C) B2 K0 D; p, A5 n# G allowing for approx. 6 dB reserve before hard clipping occurs+ }+ G/ f: {' s3 H t
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