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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
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4 u7 y; E$ m6 }& J& v英文电子说明书
+ y, c# V' s; A: R$ o# ?9 h2 v[1] POWER Switches the unit on or off. The unit is ready to operate with the factory5 J9 j3 I% Z2 s
default settings. The subsequent settings remain stored in a Flash EPROM7 t, Z9 d2 Y: o- q: S* D- }
after switching the unit off (unit contains no battery).
1 V- O8 ^! t% D% A/ S[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
6 m4 d% Q% j6 U' R5 `# U" ~ between microphone and line sensitivity setting ranges.
' G, F$ ?# F: A) k5 T Mic: Range –40...+20 dBu
+ N+ f) [6 v3 u9 d c* n6 z( |* O Line: Range +14 dBu, +24 dBu
3 I. j0 w; y) e[3] Fine Gain Potentiometer for fine input sensitivity setting.
- Z9 k- H: r, X: l$ o& C! z7 ] C Range of additional gain: 0...+15 dB.
: U/ B" y4 i2 Q) |& X9 N Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents& ^, N: c6 J2 X7 j6 ]
the dBu value of an analog input signal which causes a full-scale output of
+ v& |# ~, n! {* {4 t! ?% N the A/D converter., A& O+ H" u% R6 u& j+ U
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;: q* ~# |' Q& E0 q5 B
the peak level is therefore +16 dBu. The “Input dBu FS” rotary2 ~/ ?1 A! m4 u; K9 S' ?
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine$ ^# N2 |- J( Q& y; S' n# \% x
Gain” potentiometer [3] increases the gain by 8 dB./ z4 t( W& g+ R4 o8 ], L2 u. X% X
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.& Y4 n0 l) }8 v( f+ n8 \
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
+ o9 s5 f8 X: D have more body; percussive instruments are less aggressive.
4 ^; _& p N" P) Z7 ? S9 \ The group delay behaviour due to AC coupling of the stages is different in* X! f( S D# D4 E
tube amplifiers.
9 W. ^7 ~- ~8 k2 @ The “Bass Warmth” control allows to select the frequency range
3 ?6 L" o# U5 k6 ?* O (10...200 Hz) within which the effect is active.
2 I M5 d( E! I) a) f[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
2 Z0 ]1 _2 w4 P% C8 `* ^. ?: Q% t Valve amps have a characteristic response, mid-frequency harmonic content+ ?1 [6 s, g8 M, U& O
is emphasized.
' W e4 a: ]( _* ?- T[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
( G$ _% [+ f) r/ g The harmonics spectrum of a delicately overloaded valve amplifier is completely+ Q2 q, d# V5 H" J" w% a# ]/ \
different from an overloaded transistor stage.
. B0 ^- p( @( ~6 V) |0 J C# Z The “Gain” control adjusts a gentle overload while the odd-harmonics content
% W W0 n, Z$ j3 Q3 F& E can be adjusted with the “Clip” control./ B3 q! C$ `7 W6 {
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24( t4 x$ r& W3 O
dBu FS.9 Q# D5 | y4 k7 D5 P
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
7 c; z. j. Q% ?. l: a) e desired channel.
1 I2 M- R6 I: R0 R/ g4 ? The “VALVE” LED is on when the Valve Dignifier stage is active.- L- t8 ]# T$ T3 h0 s, [% a) w
[9] INSERT INSERT function.
3 _) U G0 V; @ First key pressure: INSERT POST VALVE, the Insert Send is tapped after" M! A, B1 u* L& J r) F* Q
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
" z" r) N; ]1 a; `5 k1 H9 [ and AES/EBU outputs./ v) R' k; f- p3 N9 w) r) p# a
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before5 r( ^! z, s2 K% r
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via* _/ b% a% M% m9 C2 x& b( I
the valve dignifier stage to the Line and AES/EBU outputs.
, b3 N3 @7 @1 Q! H7 t* Q# U Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
/ W; S7 l% m: x0 @8 Y stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
8 F: i0 s) g5 H9 a* c receives this signal; display: none).
/ @. n$ I8 {- a. a Insert Send and Insert Return are electronically balanced and equipped with; c; b$ r, r3 x
XLR connectors.
+ s3 O8 L( M: N V[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
' r1 g e5 B3 K! L( i; p# r: n ADAT digital interfaces. Each input channel can be switched to one of the7 y: A) U7 b) A. ?. @
channels 1...8 of the multichannel interface. If desired, also a mono mix is
# H" z, i, }+ Z# _: I possible by selecting the same output channel for both input channels.
. x9 u0 ^! c2 `. p[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone. [* {8 R5 P, Z! l3 P
channel.
% h2 P& ^+ T( ? E- L) H Can be operated only if the input gain selector is in Mic position. The. h) B5 z- @, l* p
setting remains stored when switching over to a line gain setting.% w9 Y- y" e" A* d8 [
[12] Activates the high pass filter on the microphone inputs of the desired channel.$ w7 @) J0 T# k. y! U4 m7 b% B6 I
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
: \' X G! Y) ]( U" Q" j Can be operated only if the input gain selector is in Mic position. The6 t+ S8 |. c0 x! i
setting remains stored when switching over to a line gain setting.
6 }. E* s5 J) ]2 X5 Y[13] Ø Toggle key to activate the phase reverse switch of the desired channel.4 b/ T# g g8 s; |6 ]" s4 H. I% e
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
: |, m) R5 [$ d “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
- i6 u& P$ Y) H Noise Shaping (display: “16NS”) can be selected.
5 I" P0 f+ d7 k4 H6 c( Y/ f8 }* Z[15] SYNC Selects the synchronization source for the unit. Possible selections are:
% a6 | f f& h INT 48 Internal quartz reference, 48 kHz# W) I) P7 x$ p$ O; E* W
INT 44 Internal quartz reference, 44.1 kHz
" |8 i# E1 Q5 r/ I WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
6 F8 h; M" w- X2 |* y! c! w/ W" X AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)6 v' l- e/ {# g9 b2 b
AUTO Selects sources automatically in the sequence AES-WCLK-INT
% r# M+ t# W2 e4 p% Z, A VAR Indication only, active if the external source frequency deviates from 48 or# P- Y6 y6 R& q2 K2 L+ i+ v/ g7 J
44.1 kHz for more than approx. ±3 %.: A, @) M6 ^6 J+ C0 z
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
( {# W0 @( J0 q0 A2 s3 s either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.# \* L- u3 I+ k' G! C
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce7 @. m1 i! ]* ?5 v9 W: i, I
the danger of overloading the A/D converter with short signal peaks (if, \0 M* F7 ]3 J, z
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
& ~( T' `: N) v$ A( F' E, D, ^ allowing for approx. 6 dB reserve before hard clipping occurs& w) S6 M6 u# `
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