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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
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英文电子说明书
( e# s0 n* [: o[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
; ]. ^. |, [4 N. r+ y- N default settings. The subsequent settings remain stored in a Flash EPROM
( B6 k6 o! x8 n3 i after switching the unit off (unit contains no battery).+ h' u1 t& F& Q/ [- E' }& u% P
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
/ A0 k: A; K& q. @/ g M9 X; U between microphone and line sensitivity setting ranges.1 z m. ?0 L$ J) V) k! S; M2 k3 l; _: O
Mic: Range –40...+20 dBu6 v1 {6 y( [# q$ i& i W. V
Line: Range +14 dBu, +24 dBu6 H1 ]/ j. [: H Y
[3] Fine Gain Potentiometer for fine input sensitivity setting.( L z& P1 R# O
Range of additional gain: 0...+15 dB.% f7 K/ S7 X* X5 e& v6 v
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents! m7 Q+ Y/ O6 _" \7 P/ P
the dBu value of an analog input signal which causes a full-scale output of" ~: n9 |8 Y# c' H4 h9 e5 w
the A/D converter.1 f" x6 |" U3 x L) {: j H4 o
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
% \$ h! K) j) c6 M- p. H) k the peak level is therefore +16 dBu. The “Input dBu FS” rotary9 g! Q: M6 M9 _
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
* @, k5 W T4 s Gain” potentiometer [3] increases the gain by 8 dB.
% W* x5 z) s5 \5 B" c[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.( x i, u% t' v% ^. n) A
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
; S! K2 X* @$ D6 K have more body; percussive instruments are less aggressive.
* I' }( g# o, E& u1 [ The group delay behaviour due to AC coupling of the stages is different in
% h5 t7 R$ Q" r/ | tube amplifiers.+ X4 ]3 ~7 o% c4 @& S+ P
The “Bass Warmth” control allows to select the frequency range7 t; G2 E) W9 L1 `- L
(10...200 Hz) within which the effect is active.9 T; s% @4 Y" d U/ ?
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
* m3 p% Z( p& h) H Valve amps have a characteristic response, mid-frequency harmonic content
. [8 c; X; Q4 Q3 w- Q. C is emphasized.
4 g. ?- V+ g6 c. ^9 f/ U5 ~[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
5 h: [4 {" d% ? The harmonics spectrum of a delicately overloaded valve amplifier is completely; }. C0 C2 q0 }
different from an overloaded transistor stage.
( J7 c1 i2 h4 H The “Gain” control adjusts a gentle overload while the odd-harmonics content
) T; D5 P+ q a+ k) @ can be adjusted with the “Clip” control., P+ e" I( z2 X+ y" _4 {! X, n
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
% K; A9 O& i, {/ V dBu FS.
/ F! O$ p. l5 |$ m! U[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the5 b2 g5 C& k1 l% m( r
desired channel. c* P3 B5 ]: F$ f
The “VALVE” LED is on when the Valve Dignifier stage is active.
% O; U) {8 e+ D2 D[9] INSERT INSERT function.
9 R1 W( s7 ?) _ v- G; q/ L8 ` First key pressure: INSERT POST VALVE, the Insert Send is tapped after
, T" l" e# F6 D2 ~/ u! ^; y the valve stage (display: “INS”); the Insert Return is directly fed to the Line+ t6 g" C$ Z) F8 ]; v" U- b
and AES/EBU outputs." p) H/ f) d, c
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before# n# s. A0 w/ Z& V$ ^
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via; h) c, D( H, C2 H5 q, w9 `
the valve dignifier stage to the Line and AES/EBU outputs.
, h+ z, F! h: _: q Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
- e6 M/ E( ?# U. } stage (if active) to the Line and AES/EBU outputs (also the Insert Send output; ]. J% C- ~" I' T5 a
receives this signal; display: none).
( x2 b' N$ A: z3 |* @4 l Insert Send and Insert Return are electronically balanced and equipped with& A1 l! d' l2 y
XLR connectors.+ ]% T8 R* }, \
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
( h$ i& H$ [3 @7 ]: U2 S4 {) d/ ~ ADAT digital interfaces. Each input channel can be switched to one of the. ~7 k. x2 j4 h' G; A# Z
channels 1...8 of the multichannel interface. If desired, also a mono mix is6 G) K' c' W! n# e' F' `$ C
possible by selecting the same output channel for both input channels.6 `3 T; q8 @. Q; I
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
! j2 U2 F8 E, t) d channel.4 F, e2 K, U) l+ A& M4 L! j/ `
Can be operated only if the input gain selector is in Mic position. The& j3 Y; t0 k- j0 Z2 X1 P
setting remains stored when switching over to a line gain setting.$ @. X6 ^" y. X6 g/ @* e
[12] Activates the high pass filter on the microphone inputs of the desired channel.
5 j `; Y* V u- T0 ? Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.$ q$ C/ R; ?6 j' ?- P
Can be operated only if the input gain selector is in Mic position. The
6 m7 Q4 X5 B3 b1 x+ K2 ~ setting remains stored when switching over to a line gain setting.
( B" n# g' u; L8 V0 j- f) u9 _- u[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
8 a G5 n z# m1 ?[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
1 O( E' h) ]3 y “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
, C% {8 F7 _- [: e8 l2 ?$ s Noise Shaping (display: “16NS”) can be selected.& t% O* B8 w' D8 g
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
1 K6 B/ e1 U/ [1 B1 M INT 48 Internal quartz reference, 48 kHz5 I- s& e Q% u! K, x- }: ]8 ?
INT 44 Internal quartz reference, 44.1 kHz
4 b# I" F7 y! N ] WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
& {0 V& A. I& x0 ], l AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
# W( k9 x9 y6 j! @' v AUTO Selects sources automatically in the sequence AES-WCLK-INT$ }5 R8 |9 j' Z4 G5 w( J
VAR Indication only, active if the external source frequency deviates from 48 or! u+ w0 O) i. m% Q
44.1 kHz for more than approx. ±3 %.# X& } P* [( p. n# k
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –4 `/ B! U! \3 I& H& R# F1 r
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s., A( q" b) j& V$ p8 J8 c; x
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
8 L8 b; c* G9 q; y0 T* R the danger of overloading the A/D converter with short signal peaks (if9 _" V) i9 p7 I8 r1 y! L
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
/ \' y* c2 m6 ` allowing for approx. 6 dB reserve before hard clipping occurs
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