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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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' B4 H+ Y" [) e" T" t4 M英文电子说明书5 ]4 Q& |( [ m2 Y$ W
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
' o; y' b2 E3 e' |8 t6 ^ default settings. The subsequent settings remain stored in a Flash EPROM
6 _, c' k$ G, A after switching the unit off (unit contains no battery).
" r) X1 ^# ] |9 }5 q[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
- q# j' z3 o) N4 `$ X between microphone and line sensitivity setting ranges.
) u/ @7 }4 R7 F. m' u$ h$ j Mic: Range –40...+20 dBu7 w3 g! z' f' h2 @' w
Line: Range +14 dBu, +24 dBu) W8 }& q) g" V+ o
[3] Fine Gain Potentiometer for fine input sensitivity setting.
+ e# T+ }) S0 E5 ^( X+ i [ Range of additional gain: 0...+15 dB.6 X% _ P- ?3 f$ p, f8 y
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents. t f) C% S- G6 t- W* r0 \* a, S2 S
the dBu value of an analog input signal which causes a full-scale output of/ [- t0 X; e9 e8 U5 m9 w( b
the A/D converter.) f& n2 z5 C" T. R6 D J& X
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;, l8 c; J' m8 [. R; R' z
the peak level is therefore +16 dBu. The “Input dBu FS” rotary( n& o0 D$ h \! G
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
1 y& z. s. F7 J( [9 B3 n Gain” potentiometer [3] increases the gain by 8 dB.
2 a. V: d7 L- U) ^* J m[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
' ^- x- m" X1 Q" c[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
2 ^, M' N* D/ I have more body; percussive instruments are less aggressive.
+ I% |/ l. f7 t) B6 A The group delay behaviour due to AC coupling of the stages is different in
. O8 V9 r& O9 ]' S3 c$ t3 ]9 U tube amplifiers.
* s, T2 x. d0 o6 E" A5 Q: |' V% {4 r The “Bass Warmth” control allows to select the frequency range
( J7 Q& ^ Z9 Z$ i (10...200 Hz) within which the effect is active. E [& Y7 B3 `& D- h
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.$ m" H3 U# Y, W q* \
Valve amps have a characteristic response, mid-frequency harmonic content* \8 {+ P& v2 G' H1 y1 |% S; c4 }
is emphasized.! M# t. v( |8 `. }7 K, @: g
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
) ?3 ]! q. x* ], y The harmonics spectrum of a delicately overloaded valve amplifier is completely; w3 H" \$ B! U# v+ O- n% a" r
different from an overloaded transistor stage.
- i! J9 }- ?. x. y The “Gain” control adjusts a gentle overload while the odd-harmonics content
: e8 t+ ^8 Q" c can be adjusted with the “Clip” control./ k' Q; d x) {. T; A# y
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
; f. K6 ^4 x3 Q% L dBu FS.
/ m$ s! |! x2 T3 a[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the* I; r) D0 }* \) ^: G4 b# I8 A
desired channel., Q' U7 d, e" J4 ^9 J4 f. @
The “VALVE” LED is on when the Valve Dignifier stage is active.0 `9 ^+ d* m' {6 m+ n7 y
[9] INSERT INSERT function.
3 s9 N# c7 [/ j# X0 `$ E% q First key pressure: INSERT POST VALVE, the Insert Send is tapped after
8 P6 X5 [3 U! U the valve stage (display: “INS”); the Insert Return is directly fed to the Line+ s% b! r! J" }* S' M/ X- k
and AES/EBU outputs.
4 n* i/ t- g7 P" [/ d8 }& C8 e' p Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
* z2 U1 C, Y/ e$ ` the valve stage (display: “INS” and “PRE”); the Insert Return is fed via6 F- i; Z" t9 S
the valve dignifier stage to the Line and AES/EBU outputs.
# Y$ @# R' |* Z$ T e Third pressure: INSERT OFF, the input signal is fed via the valve dignifier/ }3 R% F8 f- t! r: ^8 a0 h
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
4 P% p) M/ R- J, m4 F5 i9 }' G6 V receives this signal; display: none).
, Z: S) Y- d. H7 a" o6 Z Insert Send and Insert Return are electronically balanced and equipped with; k3 L. X- y9 Y& `* q2 m. V
XLR connectors.
& {# s. j3 q3 |! o, t4 N[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
3 R0 {' w1 m& A: c& w$ [1 L ADAT digital interfaces. Each input channel can be switched to one of the
/ f0 u7 d w" s+ W channels 1...8 of the multichannel interface. If desired, also a mono mix is
2 J5 h" m" w' T" @5 w0 l possible by selecting the same output channel for both input channels.
5 V9 S# t3 V& v' V[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
: I+ N X/ `0 V/ k# Q: L- B channel., |; x$ {& N$ W6 Y. ^9 l
Can be operated only if the input gain selector is in Mic position. The3 M8 y) Z/ V' e. e' h7 n
setting remains stored when switching over to a line gain setting.
4 k) D X; u8 X( O[12] Activates the high pass filter on the microphone inputs of the desired channel.- }) I g( X2 g2 i4 M7 h
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
* D- m- }6 A* G) [3 Q1 i6 D8 d) H Can be operated only if the input gain selector is in Mic position. The
$ F6 M5 m" @ b, p6 G, l0 { setting remains stored when switching over to a line gain setting.
2 l8 C' j2 D7 L. K[13] Ø Toggle key to activate the phase reverse switch of the desired channel.; a0 r4 I, R9 s7 J% ?
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
& W$ \% u8 w2 \! Q Q3 Z “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
# l! b- C- N8 X* o1 [ Noise Shaping (display: “16NS”) can be selected.
1 R1 Y& _! B0 u) O* M[15] SYNC Selects the synchronization source for the unit. Possible selections are:
5 m$ G' s& F8 q8 B2 ~' @ INT 48 Internal quartz reference, 48 kHz
; q2 H, a8 W, ^$ i INT 44 Internal quartz reference, 44.1 kHz5 s, C4 _$ x) {1 [6 c8 z
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
+ B* e% f) P9 c3 e/ I8 G% H AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
! b6 D* x& I, ^9 ~ AUTO Selects sources automatically in the sequence AES-WCLK-INT7 L3 @; Q8 Z2 q" u; ^. F
VAR Indication only, active if the external source frequency deviates from 48 or
+ q, T. H/ c9 O8 s/ O 44.1 kHz for more than approx. ±3 %.; }0 l+ y4 N" U4 A" k" H
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
/ v# l; P- v i" \: n either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.% T* ~: p9 K8 N- K( t8 X9 ?
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
1 \" |) E) m% h& Z k* R8 n the danger of overloading the A/D converter with short signal peaks (if3 m# P" o! s' W5 {' [; i
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
4 f6 j8 v/ }8 h4 b allowing for approx. 6 dB reserve before hard clipping occurs
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