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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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9 B- W, l, V3 D+ m英文电子说明书
8 i/ _2 J$ W1 A" H/ a7 U[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
4 w0 o: d! j1 l1 E& X/ Z default settings. The subsequent settings remain stored in a Flash EPROM
/ J) j6 i# g3 Y2 f. H. t after switching the unit off (unit contains no battery).& V0 y1 i4 L* X1 I0 V( X
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position. \9 T0 @9 Q% F P! o
between microphone and line sensitivity setting ranges.
4 _# d; {5 ]7 F3 K; y& T; N4 Y5 p9 K Mic: Range –40...+20 dBu5 h0 ^7 d. q- K4 n& h- y/ u4 G4 l
Line: Range +14 dBu, +24 dBu
* m* {1 U. e4 N9 f9 r1 k" I8 a[3] Fine Gain Potentiometer for fine input sensitivity setting.
0 i- l; ~0 o2 h, l: J7 [7 O# Y- h Range of additional gain: 0...+15 dB.
5 L- l0 f8 w/ z, _. T) k; |: J Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
6 M9 d8 e5 Y- W' T: w6 \0 F, p the dBu value of an analog input signal which causes a full-scale output of* C1 ]% e" [* B/ W" p8 G
the A/D converter.
! i* B; ?7 B1 W1 q: X. | [ Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
- f4 W+ N' U- y& n6 H4 T the peak level is therefore +16 dBu. The “Input dBu FS” rotary
1 u6 r8 m9 i; o' R switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
) }' ?+ }$ {7 ?: J5 e( C Gain” potentiometer [3] increases the gain by 8 dB.
3 k7 l) L* f5 J* s$ C[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.4 }, b# j6 M- j3 P
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals' T! L6 S6 s, n* e7 Y) E/ t0 x
have more body; percussive instruments are less aggressive.
8 P# |; ] a7 G3 x7 B The group delay behaviour due to AC coupling of the stages is different in
) G. q n% V5 s$ Q4 v tube amplifiers.+ _7 i, o1 I- [# O& {
The “Bass Warmth” control allows to select the frequency range
' _+ m; g, K! u7 Q* H8 ]& n (10...200 Hz) within which the effect is active., v Y. Y' Y; K+ |* P
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.5 m$ f3 [# W" K8 D' U
Valve amps have a characteristic response, mid-frequency harmonic content
, A* d6 E# C) l is emphasized.
) j6 y( ^3 q2 V8 U2 m[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer." i4 |# H) b# L0 l" _
The harmonics spectrum of a delicately overloaded valve amplifier is completely
0 B5 A# S0 e2 N7 U different from an overloaded transistor stage.
3 ?: l, v& l) [7 [; x. `, { The “Gain” control adjusts a gentle overload while the odd-harmonics content
2 U5 n7 o" z3 T/ R% `* Y( N can be adjusted with the “Clip” control.+ H9 ]$ B4 ^9 O8 r9 i) H- x
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24* k x8 ~( ?: u8 g$ J
dBu FS.
% F- T8 { b' \8 s M& Z: W[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the4 G5 `# }7 `! F* r
desired channel./ m2 E0 x: M9 p& N; d! F8 o
The “VALVE” LED is on when the Valve Dignifier stage is active.# q% T( A; F! n* F, `, N" g
[9] INSERT INSERT function.
9 a, K7 y8 ^0 h; B& D4 L5 s/ G First key pressure: INSERT POST VALVE, the Insert Send is tapped after' b; h0 J3 R( i/ s: _2 }6 @6 r
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
$ k [ G' ?8 B and AES/EBU outputs.% f8 K% Y4 {7 O ]9 t' W+ y
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
! l8 Y8 Q5 _% ]% w% z# t3 b) q the valve stage (display: “INS” and “PRE”); the Insert Return is fed via2 H0 T0 w' M/ P. p
the valve dignifier stage to the Line and AES/EBU outputs.$ e/ L7 D2 y# }) i
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier4 B1 ] s% U9 n0 K0 ?
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
4 W. F6 n' f5 ]* ?5 i receives this signal; display: none).& ]. b2 B+ T4 k) ]2 d$ [: J
Insert Send and Insert Return are electronically balanced and equipped with
/ k# U" z6 P+ O7 I* g% v XLR connectors.) [2 g9 _4 \: y0 y7 R3 \8 U
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
1 \0 z& |( `4 r ADAT digital interfaces. Each input channel can be switched to one of the
3 k% [/ X. `* |% i channels 1...8 of the multichannel interface. If desired, also a mono mix is
# g( L* [4 a( t! b; h7 j) [ possible by selecting the same output channel for both input channels.
+ e- g% L, _* S1 T( C7 G& E8 p n[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
9 u' L/ L- ?' \& w6 y4 U2 ?/ T2 b channel.
- w; z; H5 A* B( V5 n0 E Can be operated only if the input gain selector is in Mic position. The, m- @, y% W ]1 u, {/ W0 Y
setting remains stored when switching over to a line gain setting.. S5 i$ }, x: A( K+ I) Q; [0 x
[12] Activates the high pass filter on the microphone inputs of the desired channel.1 [$ v5 r: ~4 @: w5 A
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
' `2 q" D `' o: {! N2 s Can be operated only if the input gain selector is in Mic position. The
+ k+ S2 [8 m u& S setting remains stored when switching over to a line gain setting.# A3 V( b G/ Q" O6 i3 }6 [3 y
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
+ A' T4 m7 ~3 Y8 ~" c2 M[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
. U$ `- ] u% L- E3 ? “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
T/ l- p8 b: y5 L0 L$ J# f6 ? Noise Shaping (display: “16NS”) can be selected.
3 k: F2 Y9 T5 \[15] SYNC Selects the synchronization source for the unit. Possible selections are:
! j: Z/ q, P9 S% c$ B INT 48 Internal quartz reference, 48 kHz2 y8 K8 L4 y6 A
INT 44 Internal quartz reference, 44.1 kHz0 q y% l2 G8 M# ^; y$ P+ D
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)# O4 d Q7 H4 e+ f
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
; T1 r) [2 ]2 I8 b+ W AUTO Selects sources automatically in the sequence AES-WCLK-INT) I! p' v6 U- K, `% x) g
VAR Indication only, active if the external source frequency deviates from 48 or% F, M4 B2 ^+ A' D/ z" z
44.1 kHz for more than approx. ±3 %.
5 P/ @; B; C* s# k[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
4 j+ \1 o; C# q+ ^ either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
3 d V7 d( t; O6 V0 P& F% k[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
6 @0 B9 a! g" P4 E: @, K5 B5 s the danger of overloading the A/D converter with short signal peaks (if! d5 ~( }1 I0 c7 C* k, y* j
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
+ N) m; Y! X# a F6 N2 O allowing for approx. 6 dB reserve before hard clipping occurs1 G8 I, p- M7 R: O; O- v
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