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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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3 @. v2 n. P9 z+ B$ _. j+ S4 E' x英文电子说明书
% c+ C: L8 R, r* {- s7 |& X' t7 t[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
5 P3 o5 @$ ~/ [- |9 S default settings. The subsequent settings remain stored in a Flash EPROM5 A7 ^$ j* w! {; X
after switching the unit off (unit contains no battery).
4 J/ E/ i; [9 Y" I& _, e[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
& |( Y3 z5 x8 m6 h3 V, k- f between microphone and line sensitivity setting ranges.- Y. p+ P+ c3 Y
Mic: Range –40...+20 dBu" d3 a! _, _' N
Line: Range +14 dBu, +24 dBu
9 w* W1 @0 q* a, k[3] Fine Gain Potentiometer for fine input sensitivity setting.) D9 y5 A0 D# O5 e: W, Q8 F, r4 Q& R
Range of additional gain: 0...+15 dB.; Z) Q, Z4 I" n: ^" n7 J9 m
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents6 |9 [- T g* C, d% z
the dBu value of an analog input signal which causes a full-scale output of
) ?3 O3 U, ^7 n4 m% { the A/D converter.. ]- q% {/ c6 S! O
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
. E! l* M, c7 m the peak level is therefore +16 dBu. The “Input dBu FS” rotary
+ D( q, b/ K5 m# _# y2 z switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
5 l* {* |' y5 d, M$ l4 ` Gain” potentiometer [3] increases the gain by 8 dB.
4 p9 X5 W8 ~2 L" p$ Y) X J5 P: Q[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
N: [! X n; _[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals7 D. E" c# b* O7 k4 Q
have more body; percussive instruments are less aggressive./ }" z# d' ~% `; c
The group delay behaviour due to AC coupling of the stages is different in
7 f: \! g1 W h$ z; V( O* r( V tube amplifiers.& e- C1 G0 o7 M* r+ j
The “Bass Warmth” control allows to select the frequency range
% T0 m2 r8 i* d1 M, L9 _ (10...200 Hz) within which the effect is active.; ~$ U! l- w+ L1 x
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.4 m; _; K3 |! o& h z6 U4 _% b
Valve amps have a characteristic response, mid-frequency harmonic content4 x/ {: Y4 J+ W
is emphasized.. ]1 T. G- ]. l* a K5 }
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.$ w6 \( T) X/ F9 w0 t, ~
The harmonics spectrum of a delicately overloaded valve amplifier is completely+ m2 h: W5 d6 V
different from an overloaded transistor stage.' G+ u8 H6 F4 R" y: s
The “Gain” control adjusts a gentle overload while the odd-harmonics content
; s' Q& C* Z$ {& v# ^3 l can be adjusted with the “Clip” control.
6 h6 h n; q. k% U/ ^) ], Y* t1 \% M" N[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
# I1 p2 @- x0 v4 x# C6 B dBu FS.) ^1 z! f; u% w+ m. L8 _9 H
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
* ~; X, G, \. [ desired channel.
' V) r6 c1 U3 q, O The “VALVE” LED is on when the Valve Dignifier stage is active.
; y: ]2 s0 g3 D2 q0 T% i[9] INSERT INSERT function.2 w- I6 W$ ?& `& B/ Q+ v" G
First key pressure: INSERT POST VALVE, the Insert Send is tapped after4 z9 L: i1 a9 R) q1 ^
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
$ y; ~/ c# \7 ^2 d3 c! b and AES/EBU outputs.) s! ?, c5 H1 n
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before N7 S5 H" P: X& i+ ]+ y4 Z
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via8 w, C" [) k. Q- k7 ], v. o* w! y, w
the valve dignifier stage to the Line and AES/EBU outputs.
7 U* ~1 \1 B3 t2 Y Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
8 P ^9 @0 N/ B stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
5 _& c3 R1 o3 N' i receives this signal; display: none).. _( B( ^& O7 p9 {$ p9 q
Insert Send and Insert Return are electronically balanced and equipped with
; x* g. \3 N1 _( V XLR connectors.& G! W6 a0 d6 {' H2 Q% ]
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or3 ^0 D7 H% O& c# G& I
ADAT digital interfaces. Each input channel can be switched to one of the1 {, s2 _& x( r' ^6 E) M
channels 1...8 of the multichannel interface. If desired, also a mono mix is
, C: o3 |# m& X possible by selecting the same output channel for both input channels.
! D; N& S% i& f# Z- X% ^' M[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone1 R; z' @' `* V$ O* n
channel. h, V( K9 y- r( D! v
Can be operated only if the input gain selector is in Mic position. The
: w( @5 T+ }$ o( _6 x setting remains stored when switching over to a line gain setting.
, \7 y) c) C! j7 M: _% H[12] Activates the high pass filter on the microphone inputs of the desired channel.0 n7 G% u! s }3 V
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
3 s. m% o& b+ E/ K Can be operated only if the input gain selector is in Mic position. The6 Y9 s: a9 Z9 R1 t! w1 x' T( e
setting remains stored when switching over to a line gain setting.- V+ R" U k P5 h7 T
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.+ p0 R6 y6 _+ i" ^1 d5 p2 y
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
; B) z; d( c8 A$ I! N4 V! P “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with; m! w) i! D0 W4 J! Q% ?/ l
Noise Shaping (display: “16NS”) can be selected.$ B" v8 ]9 Q$ m/ X
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
1 _2 p# y. P0 v" z2 V2 h6 r INT 48 Internal quartz reference, 48 kHz
6 V Z1 b: P1 m9 E INT 44 Internal quartz reference, 44.1 kHz
2 V3 j4 q9 h# o( F WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
* p! N! o0 k& H6 Q5 a9 _2 R AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)" B$ g) m. e5 \' }/ e
AUTO Selects sources automatically in the sequence AES-WCLK-INT' @- ~& N* q: ~
VAR Indication only, active if the external source frequency deviates from 48 or
" o5 F6 Q: D/ f, Z# B! w( ? 44.1 kHz for more than approx. ±3 %. P8 ]; n+ b% P7 e5 Z
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –0 C1 m0 h2 C" {& l. ?# A
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
8 a9 ` t) U5 q6 N: Y7 }[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce' o& [, Y% z( c: a( E- t
the danger of overloading the A/D converter with short signal peaks (if" W0 O) C# ^* m4 C0 I
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
k8 o3 d6 q; |+ w0 _$ R allowing for approx. 6 dB reserve before hard clipping occurs
- ^' k/ L9 C4 k; o% t$ Z! }, ~2 v3 r 9 R2 X0 @5 |! j* F
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