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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 . H# [% c( d) M) x. r( X8 A$ J
1 |) ? T) z+ X& O& x5 c0 }英文电子说明书
0 p$ G5 C) q7 N4 t[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
$ X5 V' V! @& n default settings. The subsequent settings remain stored in a Flash EPROM9 ~2 B* [ |- W/ u6 N) q" b! e( J
after switching the unit off (unit contains no battery).# M% t" h- h& ~. Q6 Q6 U6 A& X
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position5 P# Z: {9 S( z& J2 n. A+ K M
between microphone and line sensitivity setting ranges.
( x* g( D: q$ p. J Mic: Range –40...+20 dBu
2 N3 l6 W: Y1 G% E, ^, V Line: Range +14 dBu, +24 dBu
, [4 I7 u5 v/ \[3] Fine Gain Potentiometer for fine input sensitivity setting.
- @9 Y* R; p! z; h! ^0 e6 z I# j Range of additional gain: 0...+15 dB.
6 a: K4 ~& P/ a7 _/ W) N, V* T Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents8 ~; W. Y I, O5 |( u p/ l7 m
the dBu value of an analog input signal which causes a full-scale output of
6 m# S8 w0 ~. [ the A/D converter.
/ a$ V+ j. H& |7 z Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
! W; k8 {: ]$ @! K& H- ~ the peak level is therefore +16 dBu. The “Input dBu FS” rotary" ?* f1 q- M! A4 C# B6 s$ q' G* u
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
3 O S+ Q; `5 e' U6 u0 Q Gain” potentiometer [3] increases the gain by 8 dB.8 \& P- K5 ?7 O5 G* b0 _
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.9 Q9 `! {6 O; v- Y. b% S
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals) K( Y5 ]+ Z+ S1 @* K6 {& x
have more body; percussive instruments are less aggressive.
5 Z/ ^& l8 [/ E4 q The group delay behaviour due to AC coupling of the stages is different in
/ J& Z5 q+ e/ Y O K4 e4 M$ ?' z+ @. h tube amplifiers.
; }& Q6 J9 Y+ X4 R0 y2 X The “Bass Warmth” control allows to select the frequency range
% [( `$ D& e+ p B6 t (10...200 Hz) within which the effect is active.
+ W+ ]" k y* Q" c[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.6 h( Q# C& u' `
Valve amps have a characteristic response, mid-frequency harmonic content$ V: c- ~0 R% {0 a
is emphasized.
- n: t, h6 y9 ^. b5 |! a[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.; G- W. p* g& P U6 l
The harmonics spectrum of a delicately overloaded valve amplifier is completely& M$ n4 t Q! F4 A
different from an overloaded transistor stage.0 V" h; {4 s! z1 a! _2 v
The “Gain” control adjusts a gentle overload while the odd-harmonics content' U7 O5 i# Q q# [! B
can be adjusted with the “Clip” control.
" b* M% E! R% G& O# V' `[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
" `! D0 O1 m2 R) `) I8 x/ g dBu FS.4 i, z0 Q' w8 \$ Y
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the+ {; q5 N i0 `7 {3 x0 t9 j* p( P2 B; K/ {
desired channel.
- ]! f8 S9 d! o' n6 a/ C: H The “VALVE” LED is on when the Valve Dignifier stage is active.* Y1 ?, ?1 H5 [ \3 a( t; P
[9] INSERT INSERT function.& n$ {; R0 N6 I0 d, l, R
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
: ~ b% j7 g, h+ g2 ~6 T# h the valve stage (display: “INS”); the Insert Return is directly fed to the Line
3 C* ~6 M# L- i. [ and AES/EBU outputs.
, y* h% _4 N) m; I Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before/ l4 K* s+ n: m3 ^
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via0 o/ O* N* y% p
the valve dignifier stage to the Line and AES/EBU outputs.$ ~- V7 v2 T o) A- O) z/ K; A1 d
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier; X) o2 s5 Q: k; R1 X0 d: U
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output0 y( Z" k9 n: M6 ?3 d
receives this signal; display: none).$ }! R, W2 d* R, _! x2 U
Insert Send and Insert Return are electronically balanced and equipped with3 S4 M. V& `$ e1 p
XLR connectors.' D4 Y/ F. O1 f0 A
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or% @; s+ v4 E" f& d6 b6 O7 n
ADAT digital interfaces. Each input channel can be switched to one of the8 G7 {0 u F& ?6 s: E4 |
channels 1...8 of the multichannel interface. If desired, also a mono mix is5 G0 e8 T @. e( n+ p
possible by selecting the same output channel for both input channels.
* `3 u) C' I8 @* w[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
4 U- g! p& i, L1 G' }- r8 ?, d channel.
3 ]( o+ f. y5 A% [+ e0 F Can be operated only if the input gain selector is in Mic position. The
7 v0 ^3 D0 S8 N3 a8 d$ q setting remains stored when switching over to a line gain setting.& M, V3 H# @& E. f& c, M
[12] Activates the high pass filter on the microphone inputs of the desired channel.
$ D$ _2 W' I' ? Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
+ D( b5 Y8 M! y6 u1 B3 V- h Can be operated only if the input gain selector is in Mic position. The
2 z' j, n7 l4 w; d setting remains stored when switching over to a line gain setting. |4 ]* h; S& H; l* e" ?0 J
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
4 @' B6 n7 I5 @7 Z8 A9 J[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:& w- D/ Q5 n6 B1 V' ~) I
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with9 q! \3 t: U5 _8 w
Noise Shaping (display: “16NS”) can be selected.
5 J, B0 y: V& }. N/ h& {1 W[15] SYNC Selects the synchronization source for the unit. Possible selections are:
) R B5 c$ N; ~! o; M2 A* X INT 48 Internal quartz reference, 48 kHz& P4 S" U5 R: @/ Q9 O& b; Q2 k
INT 44 Internal quartz reference, 44.1 kHz' F ~, o# q/ y4 g6 o# S
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
. ~! c0 j0 [/ a' |, x AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
! o* h5 P5 v! W ?9 H1 j2 a AUTO Selects sources automatically in the sequence AES-WCLK-INT
3 Y9 U w3 z, o7 I8 H VAR Indication only, active if the external source frequency deviates from 48 or6 R/ ?, i& L; @& T4 i' U2 B
44.1 kHz for more than approx. ±3 %.4 ?2 N! j0 D) t6 G1 r
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
/ m2 `3 a4 `1 x- q- x3 f' } either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
3 P/ Y' W" a" L" o[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
2 c0 ]* [' ~4 M the danger of overloading the A/D converter with short signal peaks (if( Y* u# _1 @4 J, r- E5 K
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
) m" j+ `6 Q( { allowing for approx. 6 dB reserve before hard clipping occurs( c; X8 I; U& s4 U/ g0 d
/ P0 y6 m! m7 R' A
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