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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 & Z# }' f7 [2 k8 w& b
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& k) w4 N4 |# g1 }% `英文电子说明书
% \7 n% ?- y! B5 u[1] POWER Switches the unit on or off. The unit is ready to operate with the factory+ F/ r0 G* f( D! v, \+ M6 G
default settings. The subsequent settings remain stored in a Flash EPROM
: [- J, P5 }& o* `/ P/ t3 N after switching the unit off (unit contains no battery).
, |7 Z2 q* u3 y' _: {" A8 U* X[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
# C% I- Y. g7 l; Q% c" z between microphone and line sensitivity setting ranges.! y- F9 B* Z( d7 z% Q6 m
Mic: Range –40...+20 dBu
7 `; r6 l x; y7 U5 S Line: Range +14 dBu, +24 dBu
4 a# }+ _! V/ s/ M v0 @- N[3] Fine Gain Potentiometer for fine input sensitivity setting.
7 r( h) z; c2 J) R. A- C& b Range of additional gain: 0...+15 dB.
: ~, F* z" u$ w3 g1 H+ I" U8 }2 F* h! _ Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents, ^8 R) ^, }. j Z* D* `8 L& F
the dBu value of an analog input signal which causes a full-scale output of) Z, e, g0 c! x
the A/D converter.
9 S0 a* z& d/ ~. [4 F s! z) ^, ^ Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
: e% v8 c/ E* D5 ~& H3 W6 A the peak level is therefore +16 dBu. The “Input dBu FS” rotary
; O" C3 G( v1 G1 ?+ U5 v T% H switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine5 }1 d& ^; V0 \$ f- ~! R
Gain” potentiometer [3] increases the gain by 8 dB.
0 o V# H: A2 N7 p[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.' x& ^/ ]2 n+ j& z( Y8 n1 B
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals, ~! D, N1 \0 \1 T+ d1 y& H
have more body; percussive instruments are less aggressive.
! p$ m$ ]; Z/ H. V8 I+ o8 n The group delay behaviour due to AC coupling of the stages is different in8 T8 k/ s' |$ v9 `( y- P7 c- A( F
tube amplifiers.
- G# R- Z5 U5 z& q The “Bass Warmth” control allows to select the frequency range
) {5 ?$ u# v) ~ (10...200 Hz) within which the effect is active." k7 y. {+ i9 d6 o% o6 K. Z
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.. ] o7 B5 {9 H' b9 x1 }
Valve amps have a characteristic response, mid-frequency harmonic content
[ V# Q e; f' v% W. S5 P is emphasized./ e$ t- L/ I. V3 n* J
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
% q. ]/ Z4 m- E, S- ]/ y The harmonics spectrum of a delicately overloaded valve amplifier is completely- Q# H% h/ Y' Y' ^
different from an overloaded transistor stage.
; h3 b4 I# w# ^! j The “Gain” control adjusts a gentle overload while the odd-harmonics content+ ~4 r2 a* @) _: I
can be adjusted with the “Clip” control.- k$ T3 I/ h/ o4 w: D9 ^. _
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24$ ^4 A- z" s9 U& @5 Q
dBu FS.0 I" c' ? i* _. |' Y: X; p
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the/ h, e; C; m* `: Q7 k; D
desired channel.
p7 q2 K' |' s1 _9 n0 I) p: Y The “VALVE” LED is on when the Valve Dignifier stage is active.
; Y2 h" C5 ?. b2 S5 u& R- U, Q# Y[9] INSERT INSERT function.5 x% x, U4 {0 K/ U: c; k; j
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
% @: ?" b g$ k' A$ H' c2 {" D7 _ the valve stage (display: “INS”); the Insert Return is directly fed to the Line
% z. V6 I7 W1 B, |8 Z$ K and AES/EBU outputs.: A, [& } s# `4 G5 H7 i6 u
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before% |+ y1 w, [: z/ ^3 L" ]7 f4 l
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via; r" _* C4 A: O# U$ D
the valve dignifier stage to the Line and AES/EBU outputs.; N$ G( G% E+ M) `. u/ C. f! p
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier/ t" O8 H7 a7 B8 v2 v
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
& W* ~! d* A+ d/ D& |8 ^& r receives this signal; display: none).) S7 r8 ?! N) d- b# i5 p4 ~
Insert Send and Insert Return are electronically balanced and equipped with
" o+ A, o( _! `$ L XLR connectors.
) t& }; T, i8 g) G1 s R[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
9 [$ d% z' T( A0 o ADAT digital interfaces. Each input channel can be switched to one of the9 l% |' J. a2 m5 z! b
channels 1...8 of the multichannel interface. If desired, also a mono mix is9 E* B: O5 k( L: E
possible by selecting the same output channel for both input channels.
k2 w/ A0 i" P, o[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone+ c! O& e/ G% M! F+ @1 n: M
channel.
5 K& i* m' G" Z) N' I Can be operated only if the input gain selector is in Mic position. The
0 l( { f& \+ F9 i& w2 K setting remains stored when switching over to a line gain setting.1 f% M6 M0 Y. F' w# x& i; u
[12] Activates the high pass filter on the microphone inputs of the desired channel.
8 `3 }* K0 T; @3 i$ T* R7 I Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
: c& X. z+ w$ q+ q y& m Can be operated only if the input gain selector is in Mic position. The* G$ V, i7 y/ w/ w9 p/ C
setting remains stored when switching over to a line gain setting.1 E& r% G4 \ I. R
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
1 _+ [, j1 o( U; E L5 g% d[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
8 Q6 N( n8 `) \9 [" j8 k “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with* I5 G& p# \9 Y* H% T6 G% H
Noise Shaping (display: “16NS”) can be selected.
9 ^0 D7 m6 X! @/ k( @& W& ]6 f[15] SYNC Selects the synchronization source for the unit. Possible selections are:+ G( @* p' Y" T6 t
INT 48 Internal quartz reference, 48 kHz4 p0 n- C4 g8 j, d1 J2 R; i" J
INT 44 Internal quartz reference, 44.1 kHz: y) V+ z' Z; Z( s: n L
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)7 G9 n3 G" H; x) v* p
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)6 g7 @5 j5 x& _
AUTO Selects sources automatically in the sequence AES-WCLK-INT
1 f: e2 b# G+ q8 q# h2 g6 P1 I VAR Indication only, active if the external source frequency deviates from 48 or0 v: W( |9 k* l
44.1 kHz for more than approx. ±3 %.0 W" A) Q) M* [( L B/ U
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –; p9 [& w% y( s" f- E z1 A
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s., G I/ h& c6 H( h0 j# Z
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce% K, _) @. }( o% J# A2 P2 k7 C
the danger of overloading the A/D converter with short signal peaks (if
: i8 C$ n: G/ j3 k( ?3 O/ [( j/ n: I active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,8 Y. U$ U- V1 \" Z9 h
allowing for approx. 6 dB reserve before hard clipping occurs
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