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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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英文电子说明书
9 A5 l. ?! k' K! H# I[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
; {4 U4 i/ K- z default settings. The subsequent settings remain stored in a Flash EPROM6 @* `& X, H6 z) R' u5 Q
after switching the unit off (unit contains no battery).( y' s- D K; j4 q0 W( v5 T
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position+ h6 E G6 U' P
between microphone and line sensitivity setting ranges., b* r W- D7 F8 [) {' x
Mic: Range –40...+20 dBu
d' q8 v% y8 Z2 u B% r Line: Range +14 dBu, +24 dBu
% S2 X& ^- p0 ?# `' G$ s2 Y[3] Fine Gain Potentiometer for fine input sensitivity setting.* Z9 k8 ~, V+ C
Range of additional gain: 0...+15 dB.
; {0 q. ]; r R3 f Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents, e" m1 O4 r" Z. c
the dBu value of an analog input signal which causes a full-scale output of
s7 x4 n! o5 t0 C the A/D converter.* P$ Y+ E3 j2 r- X4 q
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;% d! E3 G7 j5 [5 I/ V( P
the peak level is therefore +16 dBu. The “Input dBu FS” rotary4 [, J6 A% h* [& ^0 M
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine0 f4 ~' ?' b L+ }/ q! R, f
Gain” potentiometer [3] increases the gain by 8 dB.9 }; |2 R, C0 C# i \1 g
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.& l, `* O* E9 I) I
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals) p# n/ b6 J: G: g8 Z
have more body; percussive instruments are less aggressive., d G ~; v V b) `* `
The group delay behaviour due to AC coupling of the stages is different in
; D. }6 g5 A) e8 i tube amplifiers., R; q/ E7 {* {/ \. I9 ]: w* E
The “Bass Warmth” control allows to select the frequency range9 C7 {/ H$ R: b6 }' O
(10...200 Hz) within which the effect is active.
& j2 e- }( \, r9 `1 ?[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
( \: }3 s- v3 ~; V( n2 A Valve amps have a characteristic response, mid-frequency harmonic content8 A; x( I+ ]2 z5 [+ {7 [) e' Z
is emphasized.# \+ ], C$ n* W7 B# ]: W
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.. E8 p9 b" g2 s( N+ o1 h
The harmonics spectrum of a delicately overloaded valve amplifier is completely$ @, r w9 L v8 z0 u! x
different from an overloaded transistor stage.
0 n# m4 o9 B; s$ z The “Gain” control adjusts a gentle overload while the odd-harmonics content/ E6 s' e, X6 P0 S
can be adjusted with the “Clip” control. I7 v; r( o- \/ \0 o
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...240 x/ h4 r- D# J" |( r8 }# k
dBu FS.) y( G" T. u, W9 |. r Y- M- r4 {
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
+ e$ X& V2 N" ~; }/ I( U6 m desired channel.: a- f0 s# c9 @1 n* |" w# j. G
The “VALVE” LED is on when the Valve Dignifier stage is active.) @/ E* a3 C/ k
[9] INSERT INSERT function.6 Q1 Q$ A( Z; C2 c
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
6 w& N7 N( B! ^) B the valve stage (display: “INS”); the Insert Return is directly fed to the Line9 ]& G% `* `, \' n: a8 J5 D
and AES/EBU outputs.
* q) f4 P5 p8 \9 X$ d; v0 O' m Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before" b! l" r+ p, ^* [: l% Z0 g B
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
% I0 ]0 ?$ }; U# X! v) s* Z# h9 e the valve dignifier stage to the Line and AES/EBU outputs.
/ A' E) M( l4 t( U Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
0 r: a- S8 f! B5 x6 T stage (if active) to the Line and AES/EBU outputs (also the Insert Send output6 [: U- r1 U9 @' a
receives this signal; display: none).
7 `. [( c. \; E* O8 [9 D Insert Send and Insert Return are electronically balanced and equipped with
2 I+ g5 A7 I9 w3 }$ K& S" e XLR connectors.- e+ \. k. {+ ^% s! b! f t q) Q
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
8 M: [, t$ C; @/ Q/ k/ ^( v ADAT digital interfaces. Each input channel can be switched to one of the: p5 H, U6 @2 ^1 V
channels 1...8 of the multichannel interface. If desired, also a mono mix is* C$ w, T7 G! ~9 W' o
possible by selecting the same output channel for both input channels.8 T4 n& \8 ]" l2 \- j9 W- L
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone p0 E$ ^% B' g1 f C( f
channel.
9 I+ w% G g* S# e' y Can be operated only if the input gain selector is in Mic position. The! O! ]/ U/ d G; [' C1 X
setting remains stored when switching over to a line gain setting.; t Q" s% O1 p |3 {3 }+ |% {' X
[12] Activates the high pass filter on the microphone inputs of the desired channel.
# g' p7 U; o( d9 i Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
% L5 N5 I9 _/ r" q+ Y/ ` Can be operated only if the input gain selector is in Mic position. The
# x: G) A! y L setting remains stored when switching over to a line gain setting.
+ l" V$ _8 f; q! {; \[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
q( ^ n9 y/ b1 t0 G e$ k[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
* ]; R% \! G1 V9 x# P “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
7 o8 H3 I* K1 J% W7 C Noise Shaping (display: “16NS”) can be selected.
$ b8 i/ l0 ]9 y9 M) D) f[15] SYNC Selects the synchronization source for the unit. Possible selections are:3 l) q/ N) o2 m$ X1 w: e/ b5 e
INT 48 Internal quartz reference, 48 kHz& x9 D* U8 t. F/ v4 F8 x. p
INT 44 Internal quartz reference, 44.1 kHz
5 a9 H1 t. y/ g WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
+ l D8 W& L3 K% D7 Q3 s; t AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
! T4 z& f* k7 s! L% X AUTO Selects sources automatically in the sequence AES-WCLK-INT
- b, L0 X" {; J) y3 r8 s% h VAR Indication only, active if the external source frequency deviates from 48 or+ s/ L s; ^' R$ H, E$ p# `
44.1 kHz for more than approx. ±3 %.
7 y9 D& F6 ]1 L, f$ @% J* g[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –( g" D2 O. m1 Q5 i
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.; c: ^" m+ z5 Z+ `" m
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce7 ^' c7 C! c5 |- C0 F4 K I
the danger of overloading the A/D converter with short signal peaks (if
0 a( ]; p7 k* T, | active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
, O2 d5 \' T; O( h3 u( w3 R6 K2 Z allowing for approx. 6 dB reserve before hard clipping occurs
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