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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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- B- c/ i, T, Z$ i/ F8 C# ^# ]英文电子说明书/ L% W1 P# e4 l$ ?5 A$ Y
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
% D8 B' [2 o" f: n) A default settings. The subsequent settings remain stored in a Flash EPROM
4 `+ j4 U" G( O b after switching the unit off (unit contains no battery).7 D, |, ]; b0 B! }: [1 g
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
! W8 B$ q+ S8 V4 |/ d between microphone and line sensitivity setting ranges.
! B. ^$ S% ?- v% i/ q Mic: Range –40...+20 dBu! n! Y2 a$ q {- x- g0 C2 r
Line: Range +14 dBu, +24 dBu
5 M y" r% [5 j[3] Fine Gain Potentiometer for fine input sensitivity setting." c8 ~0 a8 w) \; F; @( A+ e- |
Range of additional gain: 0...+15 dB.
( C0 f* I+ }' d/ j0 U0 t& T& X' k Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents, h7 f% I% k0 T. F! O8 n1 ?
the dBu value of an analog input signal which causes a full-scale output of
: X: F2 p( Z: R5 |2 \, N) f the A/D converter.) B! ^+ K( S! E: U
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;" e' P/ t+ ^& n/ m! }' e: l! u/ k6 i
the peak level is therefore +16 dBu. The “Input dBu FS” rotary* A4 V% |! b: H; v
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine- p$ X: C* p5 Z1 q
Gain” potentiometer [3] increases the gain by 8 dB.
8 U) L0 f6 p# `) a[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
1 u7 a- {- l) R4 Y3 K. i[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals0 `7 z9 K$ Y3 y! D
have more body; percussive instruments are less aggressive.
( U5 a( u! N) R! `1 H The group delay behaviour due to AC coupling of the stages is different in
& z3 T* [6 J, _& z/ w: _& d tube amplifiers.3 b1 q8 b1 ?- h! B% e# D. H
The “Bass Warmth” control allows to select the frequency range
. u) \2 F8 u7 e9 M# \% z: M3 l (10...200 Hz) within which the effect is active.8 |9 y9 Z8 E I$ ^0 a- C" y; J
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.. }7 z5 q, r4 S p5 ~( D
Valve amps have a characteristic response, mid-frequency harmonic content
4 H1 B, n: s2 H# ~/ ~' |4 a4 x4 r is emphasized.+ p5 p: ]3 n3 ^3 g
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
. h3 ]3 c* k7 z; v The harmonics spectrum of a delicately overloaded valve amplifier is completely) T2 D5 A1 p$ \. t8 ]# i
different from an overloaded transistor stage.: B# `/ }+ L+ c, K
The “Gain” control adjusts a gentle overload while the odd-harmonics content- ] p8 k: U" C* L
can be adjusted with the “Clip” control.* M2 L% P) m8 W
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
# B9 ]8 |& j4 A+ ~ _" \$ b dBu FS.
# z) p5 ^: u4 o7 b[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
. L: r. B1 ]7 J1 r y desired channel.9 R' u) b2 G0 H3 r
The “VALVE” LED is on when the Valve Dignifier stage is active.
2 |( M5 a8 \: B$ J; @[9] INSERT INSERT function.' A* P" L4 n6 D; x* o
First key pressure: INSERT POST VALVE, the Insert Send is tapped after$ V7 a" k- j( b$ ^; z" M
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
9 U- W9 g2 G: m2 C# |* y, U and AES/EBU outputs.
$ ]3 \ h; s* N+ r Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
# N7 K% g6 m+ H' Q9 _ the valve stage (display: “INS” and “PRE”); the Insert Return is fed via \" `, i9 |" c; v# c/ ?
the valve dignifier stage to the Line and AES/EBU outputs.
( G6 K$ l( }, e+ n2 `0 Y+ }# j) L Third pressure: INSERT OFF, the input signal is fed via the valve dignifier5 @: Q. G+ ~8 U) B9 ^4 {+ [
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output4 y* n1 x$ z1 U) Q
receives this signal; display: none).
% h. Q& |1 @' C9 @; }0 _& K Insert Send and Insert Return are electronically balanced and equipped with
" H( z5 T+ o2 i! c6 V3 k1 | XLR connectors.) q+ _/ M) X8 ?6 q. ^ o( L4 E- I
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or+ q9 W, K+ E- `2 o, Y. x
ADAT digital interfaces. Each input channel can be switched to one of the
4 m5 Q2 v2 A9 m5 u6 B" g* Q, ~ channels 1...8 of the multichannel interface. If desired, also a mono mix is
( e8 h7 t5 b6 N8 | possible by selecting the same output channel for both input channels.
# R4 f8 _& c, F! P[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
9 V: }0 B- p {! T e# A/ \9 d# ^ channel.
# ?8 N, }: I: e) |; c6 n# M4 M Can be operated only if the input gain selector is in Mic position. The4 l1 v8 v: H |( q9 q
setting remains stored when switching over to a line gain setting.6 z0 z: r$ K4 m, m( m9 }
[12] Activates the high pass filter on the microphone inputs of the desired channel.8 |7 K, t* r) e* F5 N
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
6 s! N7 g0 T) b3 u* v! P- u Can be operated only if the input gain selector is in Mic position. The
' I8 R$ f# y7 A7 t! f+ t setting remains stored when switching over to a line gain setting.+ b) I9 j* r; d# B' G7 @
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.! j7 ^; q, o, a3 F+ f& S" x
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
+ Z3 [% P! o( D* r “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with) i7 v: O2 C/ |
Noise Shaping (display: “16NS”) can be selected.
; Z G- O; V: ~) c[15] SYNC Selects the synchronization source for the unit. Possible selections are:; h4 A4 q b2 a. ^+ u" U) k B* ?
INT 48 Internal quartz reference, 48 kHz
" D% e- [/ P' V INT 44 Internal quartz reference, 44.1 kHz5 Y |, Z7 r* \! ~0 w+ F3 z
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
7 R4 J' o# D0 W# _ AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
/ E% c1 I9 _* l5 q( l% Y7 h' m& B AUTO Selects sources automatically in the sequence AES-WCLK-INT
c6 K! D0 a/ L! v/ X VAR Indication only, active if the external source frequency deviates from 48 or
( _" X$ n. F3 y4 B 44.1 kHz for more than approx. ±3 %.; i' ~2 F! b, {, s, {
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
7 _+ i T6 P/ o. w7 J either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.( L: k' w! W C
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
. m* X$ Q% r+ |9 f$ l p the danger of overloading the A/D converter with short signal peaks (if
1 {" z3 V" g2 O3 m+ o1 p- Y active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,) J/ w) n3 _8 w3 y! p% M( b. P) \
allowing for approx. 6 dB reserve before hard clipping occurs
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