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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 " G, K7 B8 h. y
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英文电子说明书
2 b7 l, A) J9 y* l Z[1] POWER Switches the unit on or off. The unit is ready to operate with the factory( x( q" T! o1 H/ ?6 K% |/ Z* ?
default settings. The subsequent settings remain stored in a Flash EPROM
- g; Z9 m9 a. M. J6 }' j% B7 J" { after switching the unit off (unit contains no battery).6 d8 m& G* S9 q( K6 H3 b0 k! D
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position* Q1 l# B! x2 _3 G
between microphone and line sensitivity setting ranges.
9 v% `7 t: W; |% Z. ?$ t# W3 o Mic: Range –40...+20 dBu( H9 d% @ \! k& P$ Q% P5 \1 g* `
Line: Range +14 dBu, +24 dBu9 A* ^' ~& T# n" S, A! ]3 l) K$ h' n
[3] Fine Gain Potentiometer for fine input sensitivity setting.9 Z2 `( m. \& R/ o# d; D
Range of additional gain: 0...+15 dB.2 Y7 U0 R4 Y& [. n
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
$ S1 c+ H/ S2 f the dBu value of an analog input signal which causes a full-scale output of
8 w3 i9 f9 c# C. P# }% {- J the A/D converter.. [' d: [* Z$ |8 n
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
+ x- ?0 x2 [# B& x the peak level is therefore +16 dBu. The “Input dBu FS” rotary
# ^0 I: `5 y3 @+ l switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
8 A0 P- K1 f4 r8 e; \1 a Gain” potentiometer [3] increases the gain by 8 dB.
% ?; ~: o, l/ _[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.5 h X% A. C: G$ X* U3 N
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals4 j, I/ ?6 w2 V9 _
have more body; percussive instruments are less aggressive.1 d1 B& L5 c4 [" d
The group delay behaviour due to AC coupling of the stages is different in
9 \1 s* _3 u) L; x tube amplifiers.
3 V0 y; J$ x) v! P2 t The “Bass Warmth” control allows to select the frequency range
' l5 N% x/ i" T' E! t6 g (10...200 Hz) within which the effect is active.
9 o6 X; {6 ]+ ^2 J[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
% f' U9 v: w, h( D- z+ \ Valve amps have a characteristic response, mid-frequency harmonic content
" ]8 `8 s; M0 P* @; V# s& z is emphasized.9 D! m3 J! n, b
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.; ?+ m J6 z4 O& _, x, Y
The harmonics spectrum of a delicately overloaded valve amplifier is completely$ |1 o% t! `% v e; Z9 y8 m
different from an overloaded transistor stage./ ^! B4 a5 L( t8 h4 \0 y
The “Gain” control adjusts a gentle overload while the odd-harmonics content$ d; R; |- M2 x8 q4 C
can be adjusted with the “Clip” control.4 y W( C/ h/ H7 U* P' ]
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24% @+ ^2 B8 @ s! l& N0 V
dBu FS.
. B0 w4 q: |7 n6 s+ C' I[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
) e# @3 m! B% K# Z* u4 F, l& n desired channel.
* i$ M" Z0 o( ?+ w1 s The “VALVE” LED is on when the Valve Dignifier stage is active.# ~4 w9 H; Q- K2 V, ~; V- O
[9] INSERT INSERT function.8 }' I# R- v% V+ f7 e: N
First key pressure: INSERT POST VALVE, the Insert Send is tapped after% |* K3 d. y. C% @0 R# c" h9 V2 f
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
/ q8 t5 Y8 k; B& _3 m- M: ^( E and AES/EBU outputs.5 f7 q3 W, d; E' t5 I
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before. Y; G+ R! s- Z: t5 Y" j$ \, L% K
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
. m: ]) x _- E: r! U+ U! b2 ^ the valve dignifier stage to the Line and AES/EBU outputs.: A x# }6 E& H# r4 [
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
! z5 o3 l6 Z) z stage (if active) to the Line and AES/EBU outputs (also the Insert Send output8 ]1 n1 R! [; ^
receives this signal; display: none).
: i( C) K$ \3 J! m Insert Send and Insert Return are electronically balanced and equipped with
- J$ Q* ?+ ]. G; A XLR connectors.
) C# D& T W% y7 H( J& q: P7 Y[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
1 E- U5 t% r' N0 T( } ADAT digital interfaces. Each input channel can be switched to one of the; P3 o& C, B P
channels 1...8 of the multichannel interface. If desired, also a mono mix is
/ m/ Z# F% j- d7 F3 \- |5 Z possible by selecting the same output channel for both input channels.
5 _" J) n" G) h- M' M% a0 g" H[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone8 B' I3 Q6 e% f' I9 c9 x6 d4 Z) e
channel./ A5 s1 |* ]9 q9 |3 Q
Can be operated only if the input gain selector is in Mic position. The
+ O- ], l1 j$ i! z& J setting remains stored when switching over to a line gain setting.
: x) o; b$ k5 q[12] Activates the high pass filter on the microphone inputs of the desired channel.' w+ }% s* z: \+ p, i) w: F- r
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.3 |# N5 w$ P& O( ^1 y& r" X
Can be operated only if the input gain selector is in Mic position. The' s0 }4 `; _7 T1 N0 b0 G
setting remains stored when switching over to a line gain setting.0 n" V& O T9 {' _1 D
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
- o1 {% \ T) p1 {$ `8 r[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display: T* @" Q5 X7 B6 Q2 A0 V* O0 Q8 \
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
" u P0 S- A9 {0 X- Q Noise Shaping (display: “16NS”) can be selected.
1 _. E4 t' c) ?) Z[15] SYNC Selects the synchronization source for the unit. Possible selections are:
. ], n9 m6 C' N" i8 L: a5 g3 D' C INT 48 Internal quartz reference, 48 kHz
, k" b1 P) P% W1 V/ T$ h INT 44 Internal quartz reference, 44.1 kHz) n. c( w2 A' a% H! y
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
E0 ]) H" e' R; F$ C! M AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)/ u" ]4 _! g k, x% h: v
AUTO Selects sources automatically in the sequence AES-WCLK-INT
; O2 e0 X L, i2 u k VAR Indication only, active if the external source frequency deviates from 48 or- K/ A# h$ ?3 Q" ~$ f" ^
44.1 kHz for more than approx. ±3 %.' L; p6 [: p+ m
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –4 w" A7 S! J8 @+ N0 |0 i6 W* E6 t
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.' O3 A T! D9 [& S4 I+ |
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce, M. @; z. z0 T4 \" h
the danger of overloading the A/D converter with short signal peaks (if; V: B7 ~( j/ U) A6 O9 H6 h
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale, I: v( U. h4 O, q! ]4 m, t ~
allowing for approx. 6 dB reserve before hard clipping occurs
, C& x; y$ J W- [* L7 S: t" a+ u 8 g% d m; k% l. j4 j
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