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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 , K. p9 v' S. N+ ~5 R* n7 O
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英文电子说明书% Q9 f& d' [' @* U. x
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
8 N3 J" j) Z& Y) z* Q" H default settings. The subsequent settings remain stored in a Flash EPROM
, p2 y* o1 G! w, u. Z! I% H after switching the unit off (unit contains no battery).5 t, v1 P8 p9 | M- G; o4 N& D( y
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position' E. P# x& i3 s+ `) |$ n
between microphone and line sensitivity setting ranges.
( t# L7 N+ D! P- T" @: }/ v* S( R Mic: Range –40...+20 dBu! w* _3 J0 h6 g V
Line: Range +14 dBu, +24 dBu
/ _& u/ O" M* H[3] Fine Gain Potentiometer for fine input sensitivity setting.# k, T8 ?2 Z! @) o1 f1 Q
Range of additional gain: 0...+15 dB.
8 i5 }( N: F" o. P3 J b- ] Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents7 ?2 j. |& x! X1 U9 D& G* D
the dBu value of an analog input signal which causes a full-scale output of
6 u" f* p- d' d% p( Y the A/D converter.
|+ Z d8 b3 w) H& q Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
# _( q+ l" h5 P" A3 w! w, I the peak level is therefore +16 dBu. The “Input dBu FS” rotary
% A) U3 m2 Q" K S- T& Z: f1 u' i switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
# Q$ {; @1 M4 P Gain” potentiometer [3] increases the gain by 8 dB. \4 Z% r }$ a" A, ^& S' e$ h$ `
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.. A) g+ L0 r: M1 C. S
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
7 [; }: r9 E% J. [5 V7 \ have more body; percussive instruments are less aggressive.
" v7 D3 D7 A" n5 W# ` The group delay behaviour due to AC coupling of the stages is different in" ^/ J7 t4 z/ v) b) R! B* J1 X$ q
tube amplifiers.
' M5 u* ?* E- [* B The “Bass Warmth” control allows to select the frequency range
4 w- g" n4 I' x& M (10...200 Hz) within which the effect is active.6 s# Y. S* B9 ^* K
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments. S4 E0 B" r, G+ D
Valve amps have a characteristic response, mid-frequency harmonic content
( v0 t1 \) z) k ~4 T is emphasized.4 L0 a u" a. B& d& t& A9 H2 j
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.% y2 F# i) Y% G7 f3 [: l6 J6 l
The harmonics spectrum of a delicately overloaded valve amplifier is completely/ Q6 D: R2 `8 N6 f* ?
different from an overloaded transistor stage.1 y6 d: R8 q% L( `
The “Gain” control adjusts a gentle overload while the odd-harmonics content4 P, j8 q9 _$ u# g5 A& n
can be adjusted with the “Clip” control.0 w5 g( E" x( Y% A- O. g1 @
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
1 b1 R8 z6 t, X. e$ t9 P/ K+ v% \ dBu FS.) [7 s- \4 |. j6 w& f
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the+ W; v5 u& ]# [2 w
desired channel.
& K [& K* _! ? W3 D* b The “VALVE” LED is on when the Valve Dignifier stage is active.* s. @* k: ~! |3 \4 G7 ?
[9] INSERT INSERT function.
8 A- u# p: M! ?3 ]5 e' |& K First key pressure: INSERT POST VALVE, the Insert Send is tapped after
) i% b7 x' }3 V) T" q the valve stage (display: “INS”); the Insert Return is directly fed to the Line2 X* r: d% w% C& v) `* f; U
and AES/EBU outputs.- Z/ S/ q0 ]6 o8 j# w
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
2 p9 Q c) t% { the valve stage (display: “INS” and “PRE”); the Insert Return is fed via8 c# q" e( J, j. ~7 Q
the valve dignifier stage to the Line and AES/EBU outputs.# {3 p( V8 M2 K" y) K2 B
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier5 J* t6 J5 e4 o% J9 o$ z( Z7 c
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output% {4 Z; ~+ k+ q, H3 J9 M
receives this signal; display: none)., U4 C6 S) s! x( S
Insert Send and Insert Return are electronically balanced and equipped with
1 K& i6 G! j! ^3 g XLR connectors.
8 O, l o6 M1 T' v; Z[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or! m$ j5 E" O) M. M# @8 h
ADAT digital interfaces. Each input channel can be switched to one of the
" _! @1 G9 s0 E& a; ^2 a channels 1...8 of the multichannel interface. If desired, also a mono mix is. [! H9 j. j- ~ ? Z
possible by selecting the same output channel for both input channels.- X6 \, f& G7 c$ Y$ f* F' g
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
$ {% k" ~2 K& E& P3 f% o( R0 D channel.
! U4 l& q" r3 @* P Can be operated only if the input gain selector is in Mic position. The
. b& n" g" P" e' U X setting remains stored when switching over to a line gain setting.
& S# o' V( |# _5 Y7 i- H[12] Activates the high pass filter on the microphone inputs of the desired channel.
$ U/ m( K/ }. y0 o" P$ k9 n Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
; X5 [8 K" q& \3 } Can be operated only if the input gain selector is in Mic position. The" L. i0 V6 ~$ P6 B& O" X
setting remains stored when switching over to a line gain setting.: M& _. k7 W; h2 b0 Z, L. N- F) [# v
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
1 f/ i, X+ [! n, }/ e[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
9 o- [; X1 Q) v: ? “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with' E2 t9 |# p/ T$ r- O9 ]* {7 P
Noise Shaping (display: “16NS”) can be selected.1 }# o8 E+ W5 s! A6 w# q
[15] SYNC Selects the synchronization source for the unit. Possible selections are:, G/ D/ U! p9 T8 F8 _- f4 d
INT 48 Internal quartz reference, 48 kHz
) @$ R8 _4 P; a$ i# O INT 44 Internal quartz reference, 44.1 kHz
* z1 c& d r% k- [/ Y F WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)3 |: A+ I! i) E$ m: \ U& i2 D
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)5 d3 ^. k+ R/ f7 G3 ], `! K+ D- P
AUTO Selects sources automatically in the sequence AES-WCLK-INT
/ y. [* k* e& J) E$ N R. c VAR Indication only, active if the external source frequency deviates from 48 or
, ] J% H$ M4 ^% h+ G) i5 m 44.1 kHz for more than approx. ±3 %.1 V3 y) z/ F# J
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –+ f4 U- q+ q$ x) P. b& k
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s./ k7 g; C& I. b; f
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
0 J/ h$ Y# R3 h the danger of overloading the A/D converter with short signal peaks (if5 ^" A/ E- ^7 i3 _
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
& v$ Y1 P6 P$ `/ s6 r; T$ a allowing for approx. 6 dB reserve before hard clipping occurs4 y! m X% J% G' v# u# L( i
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