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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 - g6 Y4 m H1 s4 V9 c
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5 D1 Y, o8 p! R英文电子说明书
; _: k U! R! j[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
) V' e4 S; q- y) b* a! n default settings. The subsequent settings remain stored in a Flash EPROM
( |9 B U9 e. f- D- }, w3 r% L& O after switching the unit off (unit contains no battery).
5 i- ?1 z7 ~( _7 a/ P[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position3 p4 l- c5 s$ B
between microphone and line sensitivity setting ranges.2 z7 t) W) w7 t4 e2 a
Mic: Range –40...+20 dBu
3 U( B9 l, K" v Line: Range +14 dBu, +24 dBu- |: ~+ d a- |$ ]" t
[3] Fine Gain Potentiometer for fine input sensitivity setting." U6 Z! x$ k# K" t
Range of additional gain: 0...+15 dB." P) o& X, t# D* x' f" a
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
+ x: r% Y- M' W. M0 g* }" x! z" H3 } the dBu value of an analog input signal which causes a full-scale output of; L0 g% _, u' n- p' Z
the A/D converter.! f1 N- u1 i9 h0 _: `# V0 c
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;: y5 O! g( t/ s$ ~) h! q" v0 b( I
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
k2 _( R9 Q& e switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
7 I5 d& X* _9 P: l8 F& H7 F Gain” potentiometer [3] increases the gain by 8 dB./ [# O; H, J1 L' q: f, l* I0 O
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
, L$ l1 s% [: \& E1 x; v[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals% B% X- Q8 e* w6 F" G
have more body; percussive instruments are less aggressive.
0 B( Y5 J: x' h5 V9 b8 G The group delay behaviour due to AC coupling of the stages is different in
7 b% S, S6 E: F! \, _9 \. P tube amplifiers.% ?# B# l' v/ ^4 V7 U9 q# w
The “Bass Warmth” control allows to select the frequency range3 M9 e/ E# P) y* ^" w1 n
(10...200 Hz) within which the effect is active.3 P( y+ B/ q# p) P
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.% }' q' K& ~% q( Y9 J
Valve amps have a characteristic response, mid-frequency harmonic content+ @0 f# g2 a6 B1 W9 R0 g9 N8 o/ ]2 \) K
is emphasized.
- V. h: T' T8 x[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
' t# q# N- F7 {; D* T The harmonics spectrum of a delicately overloaded valve amplifier is completely
% t) _3 P" @0 \9 G6 l/ M- ]3 Z different from an overloaded transistor stage.; |" N" h E# m& ^ g
The “Gain” control adjusts a gentle overload while the odd-harmonics content# g8 r" U! Y- P2 K
can be adjusted with the “Clip” control.6 [- t+ z. Y! r0 `! m( b7 N- z. A
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
+ O: U, u2 l# l5 T! b3 ^5 U dBu FS.* L# J3 X) k7 ~$ k8 G+ o
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
0 L$ ^, Q' n* p& B8 P" J( Y desired channel.5 e1 [$ ]& u8 E& s
The “VALVE” LED is on when the Valve Dignifier stage is active.0 H6 B0 {9 E( A, A. V- _
[9] INSERT INSERT function.
8 g0 w; S. Q' y9 V5 D2 ^0 J9 }9 b First key pressure: INSERT POST VALVE, the Insert Send is tapped after
/ s& y6 c3 f8 _, M( F( g' d. F the valve stage (display: “INS”); the Insert Return is directly fed to the Line
c# x) |: f6 B0 n5 ] and AES/EBU outputs. a/ i( y+ J; \6 s& H9 E
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before0 }# E% E' |( ?2 k9 n
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
' l/ m0 S8 j3 K. |/ ? the valve dignifier stage to the Line and AES/EBU outputs.6 }$ E2 M& k0 Q- X4 m" T6 e
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
, w" W, o! {" E$ [, | stage (if active) to the Line and AES/EBU outputs (also the Insert Send output% m5 U4 s/ ?. ?! T) L- c/ x& [- M
receives this signal; display: none).
& Q5 r3 T( Y0 n6 S) J- c4 @1 c Insert Send and Insert Return are electronically balanced and equipped with
3 L5 p% K; Z5 }: m; F XLR connectors.
3 X g- P7 ^* k" i9 B) R7 E) K[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or. O5 a3 \7 Z E; p1 ?; j/ \
ADAT digital interfaces. Each input channel can be switched to one of the/ o" L) z' F& a1 i1 y' e
channels 1...8 of the multichannel interface. If desired, also a mono mix is
, p1 f: Z. L% i( i possible by selecting the same output channel for both input channels.
- ^3 p9 Q! ~6 x4 C[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone# z/ T! _* f/ j( w* T0 Q3 f
channel.3 u7 `8 D+ w1 M" a$ {% s
Can be operated only if the input gain selector is in Mic position. The
" q- B5 _# s9 m* H) P& { setting remains stored when switching over to a line gain setting.* Z; Y2 v' t! j) o
[12] Activates the high pass filter on the microphone inputs of the desired channel.) [3 F9 n" ]4 }% z, ?+ U
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.9 t0 `( \. J/ d' z0 y1 r3 _
Can be operated only if the input gain selector is in Mic position. The3 R; x" z7 y! c$ F& Z
setting remains stored when switching over to a line gain setting.* W% C% e( Q: M+ T4 a6 w
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.& }3 G! E6 D8 Y* ?
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
& n- y$ j/ I# i" j& H+ R( H4 ? “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
- T6 h- K5 }* Z# \ Noise Shaping (display: “16NS”) can be selected.
8 C" A* I- K9 y. P[15] SYNC Selects the synchronization source for the unit. Possible selections are:4 ^! ?# t4 ]& x; Q x
INT 48 Internal quartz reference, 48 kHz
( r6 _/ Q, c6 q2 w( ~6 z/ T4 W INT 44 Internal quartz reference, 44.1 kHz
1 B; I' G7 @6 j" l; ` WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
& U; }: ]0 J- l- S! u AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)) H0 z) g6 s. |
AUTO Selects sources automatically in the sequence AES-WCLK-INT8 X. x$ n1 I2 P0 n4 |' x
VAR Indication only, active if the external source frequency deviates from 48 or; v F, j" i2 z/ E* K8 @1 @
44.1 kHz for more than approx. ±3 %.
+ Z$ F; \! s7 s0 F; c& Y[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –% n6 E9 c; @; w i7 K+ b- ]8 a J
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
2 m; q% M0 K( P# e1 w0 t" R& Y[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
/ v5 K) K" ?; W0 {& R, m0 O the danger of overloading the A/D converter with short signal peaks (if
. U/ N' a4 A# f% ^ active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
`4 p; c/ p' l. ? allowing for approx. 6 dB reserve before hard clipping occurs9 A% ?4 Z) a' a; s1 d# S
+ D1 c: ~: r4 @& i
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