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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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英文电子说明书
4 o3 B- k) G# Q4 h[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
$ q( I. c6 O4 i- U' }* t. v5 [ default settings. The subsequent settings remain stored in a Flash EPROM
z) C9 i# A. G/ @+ W% j C; J8 e after switching the unit off (unit contains no battery).* k! E7 t. r5 J' m# T
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
4 {8 c: m! F5 @1 W$ d0 k' r between microphone and line sensitivity setting ranges.* K, B7 m( E+ t2 v
Mic: Range –40...+20 dBu o5 s3 n% N P5 c4 g
Line: Range +14 dBu, +24 dBu$ n6 o- E' H/ ~! E
[3] Fine Gain Potentiometer for fine input sensitivity setting.
* O0 E& j9 }% z, L1 k Range of additional gain: 0...+15 dB.
; m" Q1 z/ F: P; Y c8 N) J W9 f Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
7 y# U) G. T. Z! g0 K0 u the dBu value of an analog input signal which causes a full-scale output of9 f' ^( y' m) [" o' ?
the A/D converter.
, @: C% |' Q* ?# R% d' C7 p Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
, @! `) b" w( D" K the peak level is therefore +16 dBu. The “Input dBu FS” rotary
6 b9 t4 p, y# A3 u5 I$ {. e& T switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine+ }! L, M! j7 W0 I, J$ D
Gain” potentiometer [3] increases the gain by 8 dB.3 P) Y( k% L+ {! p
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
$ |! R9 @0 ^/ N. D& `% | l4 U( `[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
5 z6 V( \6 R! k# D9 R" s9 i have more body; percussive instruments are less aggressive.
: D. U$ U) ]# B* i# M3 @6 c' E The group delay behaviour due to AC coupling of the stages is different in M% J3 }' {" H
tube amplifiers.0 F2 M0 x7 t1 x- m( k7 \6 C' @
The “Bass Warmth” control allows to select the frequency range
* v3 k4 S8 H+ D" Y- k (10...200 Hz) within which the effect is active.+ S4 U6 S/ o- A5 D
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
3 v8 h, ]# ^+ |& | Valve amps have a characteristic response, mid-frequency harmonic content' q1 I9 K+ D0 h' z+ N
is emphasized.! n& G! n! Y8 O! `. Y# b
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
- i9 k2 e! M$ F) x/ a The harmonics spectrum of a delicately overloaded valve amplifier is completely8 t! _0 r* Z' \% j
different from an overloaded transistor stage.. M0 b3 F6 j. g3 G
The “Gain” control adjusts a gentle overload while the odd-harmonics content
" c, g5 `2 z. y can be adjusted with the “Clip” control.
* g3 t7 L$ K* c% Q; h[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
1 S4 ?; n# p4 Z3 O9 ^+ _1 u# x5 q dBu FS., g, C1 T) D4 }' C; H
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the' g$ b6 Q& V" G0 A% a$ j9 x, x1 J
desired channel.% N; C2 a7 b; o5 m/ U% O
The “VALVE” LED is on when the Valve Dignifier stage is active.- O4 p+ k5 A$ [* L1 F
[9] INSERT INSERT function.
$ I3 S9 f y! W! E5 L7 x9 ^ First key pressure: INSERT POST VALVE, the Insert Send is tapped after, Z9 O+ y) l8 P0 t
the valve stage (display: “INS”); the Insert Return is directly fed to the Line+ }6 C) N) ^0 R. [. D8 i7 [
and AES/EBU outputs. j* w% U" o1 z/ w
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before- a1 _9 H4 c. ^' H! M+ M
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
# K7 C+ P% j4 V3 G$ R the valve dignifier stage to the Line and AES/EBU outputs.
& D; O! f7 G: q3 L8 F& q1 p Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
, _2 u3 D# C) l) R# t& S* Y g+ [+ |) l8 O stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
7 P1 \- `3 N, m, [0 K receives this signal; display: none).
2 _, t4 u, ~ E" K Insert Send and Insert Return are electronically balanced and equipped with8 ?* Y$ z9 `: o7 f( D! M
XLR connectors.% w8 h! ~6 b6 S$ S, C" D' ?
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or$ R6 `4 ]4 h: o( r2 P. i5 `
ADAT digital interfaces. Each input channel can be switched to one of the7 b8 L/ }& ]( u o3 z
channels 1...8 of the multichannel interface. If desired, also a mono mix is
* Y3 N% G7 U' b' ~ possible by selecting the same output channel for both input channels.
3 w2 e1 B8 D' l5 o[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone/ G* O8 f# k c4 E# l' `. P' P5 i
channel.
9 ~+ K( }- V1 q+ C+ Y; f" |+ v2 R Can be operated only if the input gain selector is in Mic position. The+ ?9 s& {9 M8 [3 H8 t* N
setting remains stored when switching over to a line gain setting.
, H4 l; v, {* [+ J0 W6 I3 J[12] Activates the high pass filter on the microphone inputs of the desired channel.
9 k+ y8 ?( j( }) g9 T) j! {% U. D Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
. o0 D; \8 x* ], \' m Can be operated only if the input gain selector is in Mic position. The; [: y- f% D( @ A/ \# u! C
setting remains stored when switching over to a line gain setting.
5 B! y; x0 ]7 p3 e) f0 h[13] Ø Toggle key to activate the phase reverse switch of the desired channel.; P5 r1 ~# c) K8 F
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:% B6 F+ D& G! D
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
1 x: c0 E8 ~% N5 v Noise Shaping (display: “16NS”) can be selected." M1 J4 w; O0 [: j0 X, {) `
[15] SYNC Selects the synchronization source for the unit. Possible selections are:, b6 A! O* c2 J# y
INT 48 Internal quartz reference, 48 kHz- P- V; h& C6 D
INT 44 Internal quartz reference, 44.1 kHz
' N" x2 {, a1 d( }7 }6 b Z/ e WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
2 M J4 |1 ?* R7 j. w" c9 b; n; g AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
; \6 e: l6 S, [. |% L- X AUTO Selects sources automatically in the sequence AES-WCLK-INT( k# i7 o8 U' W; g1 {& B2 o# A& a
VAR Indication only, active if the external source frequency deviates from 48 or0 \- p- x |+ ^, o
44.1 kHz for more than approx. ±3 %." V1 n S* E$ l" o" R" w
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –- Z- ~# c' _8 ~9 {8 q/ o. @9 R
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
1 c3 W; m/ T2 d, U7 a[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
$ D- Q! Q( A8 F the danger of overloading the A/D converter with short signal peaks (if" v0 ^; w2 M! e8 t6 P/ y l* s
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,1 a' o0 d: u; Y5 H& @5 K8 Z
allowing for approx. 6 dB reserve before hard clipping occurs" K) ] @. D- Q2 V8 y
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