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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 : O; c1 {3 X! P7 A, v6 s# j
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: d9 D3 y. t5 g1 d g' E英文电子说明书* ]5 u( ^0 [) k3 V( A
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
8 t- a3 G. x9 ~. Y+ g/ Q1 o g default settings. The subsequent settings remain stored in a Flash EPROM
3 B% c" l0 A. T; Z7 i: R% Q4 Y after switching the unit off (unit contains no battery).
, w- _6 v8 O) J3 W4 z[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
$ b; j' u& p5 M* l5 [ between microphone and line sensitivity setting ranges.
: |1 ~/ R4 ?% r5 b6 r: V) F Mic: Range –40...+20 dBu
) ]: E& X, i8 B# ?7 S Line: Range +14 dBu, +24 dBu. N/ C' P) B9 z' U0 \, m
[3] Fine Gain Potentiometer for fine input sensitivity setting.5 F( s+ c+ x- |: }9 w
Range of additional gain: 0...+15 dB.
( R" G1 m( b1 ?. G5 r Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents9 f/ X f, u1 K& n
the dBu value of an analog input signal which causes a full-scale output of
* J* m: T: |; V, Y* b$ H U) j { the A/D converter.& t$ x. K' v, d# g' X$ J
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;' v8 B9 V& W" _( R- ?
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
4 I0 W) W5 G9 L6 B2 g! N. K switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
6 {; b v; a( Y. q# N+ V Gain” potentiometer [3] increases the gain by 8 dB.
) ~! i( K2 {+ q; |2 ?2 I[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.7 @8 D Q2 D0 L1 j4 |9 H
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
# X- A8 p& E/ ]9 ]2 p) q. ? have more body; percussive instruments are less aggressive.
% g ^# }' l' W! i9 r( {1 f0 ^, ~5 C The group delay behaviour due to AC coupling of the stages is different in
5 p w7 q' |; g! d5 T! \ tube amplifiers.
$ e. j7 J8 F6 v( e; [5 x" }0 n The “Bass Warmth” control allows to select the frequency range0 f+ X% A4 R n+ H/ a% k: G4 E
(10...200 Hz) within which the effect is active.0 }1 B2 V3 C8 L8 ?$ |# B E2 X9 U; l0 E$ p
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.& m7 u; T9 F7 x; K% x' X" t
Valve amps have a characteristic response, mid-frequency harmonic content
9 N. W: _' X5 Z" ^/ M is emphasized.6 H) M5 X3 M9 V. Z
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
; K9 N1 @/ |/ u7 z! |: H0 q" s6 A The harmonics spectrum of a delicately overloaded valve amplifier is completely, ? ?0 I/ r, b, y$ ?3 i+ }, M
different from an overloaded transistor stage.
( Q2 c* T, z$ _5 k* |4 S) E The “Gain” control adjusts a gentle overload while the odd-harmonics content: Q& |/ R+ e3 O0 y' U
can be adjusted with the “Clip” control.3 q" T4 j' K: d) ] d) z% g
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
, G# n5 }1 h3 @8 Q9 _/ L dBu FS.
! ~, c9 _* y/ j7 ?+ C0 X( c[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
Q0 r) ]" G& D. { desired channel.
4 a2 z+ e+ D8 m# i( t4 c7 a The “VALVE” LED is on when the Valve Dignifier stage is active.
% U7 F3 m+ S) f" v _; h& U[9] INSERT INSERT function.
! [6 z) d; ] m/ F First key pressure: INSERT POST VALVE, the Insert Send is tapped after3 R, K+ s! S7 A0 j# x
the valve stage (display: “INS”); the Insert Return is directly fed to the Line: \4 d5 x$ k6 X6 S8 Q/ d+ J
and AES/EBU outputs.# A- G$ ]4 E% ]+ V' Q1 J
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
' o$ i& q0 Q' A @* O; S: T; u0 j the valve stage (display: “INS” and “PRE”); the Insert Return is fed via$ `' h0 M9 K. @; A
the valve dignifier stage to the Line and AES/EBU outputs.) H1 @+ C' u+ \" d) ]9 Y5 ~
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier& f# F F- z4 Q& _2 O( N0 {, A& q
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output& ~" s% z3 X# d1 w3 Z/ g
receives this signal; display: none).
4 s8 d U# Z, C! X Insert Send and Insert Return are electronically balanced and equipped with
* m2 D) T/ {' x5 {! V. u XLR connectors.
1 K' N6 f4 d+ f2 R+ S K& A4 z9 J' T[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or/ v O$ x5 }" \$ H
ADAT digital interfaces. Each input channel can be switched to one of the
) h3 R3 Z/ x# I! K6 D channels 1...8 of the multichannel interface. If desired, also a mono mix is
, b( \0 }+ w6 L& g6 o K' u0 e possible by selecting the same output channel for both input channels.
0 D* k8 o3 c3 j& }: p3 r. B0 e[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone! E& H' h8 {! Q* x
channel.6 D8 @" d. W9 d
Can be operated only if the input gain selector is in Mic position. The9 I* u+ w+ a! u" j
setting remains stored when switching over to a line gain setting.: B( F. M/ D- D. B3 O
[12] Activates the high pass filter on the microphone inputs of the desired channel.; B6 D1 S0 _2 M& N: y$ ?
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
) ?* m9 d. {5 z! B) j! t% M( z Can be operated only if the input gain selector is in Mic position. The: K& ~; t8 F$ l9 h2 j: `2 b; h( }' o1 \
setting remains stored when switching over to a line gain setting.
& V) m. A# v$ B/ ^) J% C[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
1 ?6 @6 A# Q. Z* o) h[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
6 e. N- V( K, [/ y; C# e* | “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with& W+ Q! P3 E/ M B" V2 F
Noise Shaping (display: “16NS”) can be selected.5 x. ?& H7 J4 D: M7 B. ^* X
[15] SYNC Selects the synchronization source for the unit. Possible selections are:2 _& P. t8 s& X/ x
INT 48 Internal quartz reference, 48 kHz8 o; j* H4 \/ l S. F
INT 44 Internal quartz reference, 44.1 kHz
0 N$ A9 J/ h( B. @1 r3 U- T2 S WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)( u Y$ h% t/ r$ T0 D' N
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
" D8 R8 K' W, _1 z" t" F" g AUTO Selects sources automatically in the sequence AES-WCLK-INT
; A7 `6 h9 I; Q; e6 | VAR Indication only, active if the external source frequency deviates from 48 or6 [) N# }4 S% U6 A/ q# h3 A$ e
44.1 kHz for more than approx. ±3 %.& U& [4 Y$ K' z3 k. s- L# V- i
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –3 R4 _. a$ m. X2 T2 \; u/ Z1 u
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s." S9 l' \8 K: p% c
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
1 i( e% U( C: y the danger of overloading the A/D converter with short signal peaks (if
" B, w5 W0 n+ B( N c t active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
7 Q/ F3 d8 Y6 W allowing for approx. 6 dB reserve before hard clipping occurs
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