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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 8 I" ?: }. g4 g4 H
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英文电子说明书
4 Q& [0 C9 D1 B5 e, l0 m" v2 ?[1] POWER Switches the unit on or off. The unit is ready to operate with the factory9 q- |1 J5 ^2 l8 K2 \
default settings. The subsequent settings remain stored in a Flash EPROM# [( Q5 ?, X) _3 i0 R! m: q
after switching the unit off (unit contains no battery).5 r5 T, E+ h) ?8 Q3 r
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position2 R, @' S2 [1 w- S h7 |
between microphone and line sensitivity setting ranges./ T H& h. c, [9 b8 a7 i# a
Mic: Range –40...+20 dBu
0 J% a K) a3 T( @4 h+ Y Line: Range +14 dBu, +24 dBu( O1 ~* N" r$ `. G' W" |
[3] Fine Gain Potentiometer for fine input sensitivity setting. M, a3 i' L- n. U7 b8 ?) O. N
Range of additional gain: 0...+15 dB.
1 f5 \: a _. W, v! V3 J9 Q3 E Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
4 s% e4 l; V" D) H; M- d the dBu value of an analog input signal which causes a full-scale output of
* Y3 A) E/ ?1 G% ` L# |: G5 `6 W6 i the A/D converter.% |. W* N3 M& u, t L
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
' R! \; N: e* R7 W7 A9 R8 `: b the peak level is therefore +16 dBu. The “Input dBu FS” rotary
& [& V% S; M. R! [+ y switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
! M/ c' i3 G, F Gain” potentiometer [3] increases the gain by 8 dB./ w- W" s- a* T
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
) R- d* u2 `% f+ B[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals3 U$ _: j$ Y7 s& G2 |. t2 R$ M/ C
have more body; percussive instruments are less aggressive.
" f8 n1 W2 {- L5 d The group delay behaviour due to AC coupling of the stages is different in8 y! g9 s2 r& g
tube amplifiers.
4 ~, r3 \. Z8 n$ X2 a The “Bass Warmth” control allows to select the frequency range
/ O& i9 k, p" p7 ]% W (10...200 Hz) within which the effect is active.
3 G# H6 z7 Z' |2 X1 Y* O; s7 C[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.8 P5 @& b/ e% a5 B
Valve amps have a characteristic response, mid-frequency harmonic content9 Y+ e% g5 }6 k% S
is emphasized.. w. {( [3 x9 @2 K7 \
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
; ?; o- P8 d( A4 S9 c/ @ The harmonics spectrum of a delicately overloaded valve amplifier is completely
' X$ r% s( C) R j5 o different from an overloaded transistor stage.
- X) a* U0 s0 y6 K8 @ The “Gain” control adjusts a gentle overload while the odd-harmonics content
7 h' `5 f( L" t- w5 ^" [ can be adjusted with the “Clip” control.' y G6 {& K( [" A: _' D
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
4 n+ i+ E$ I6 b3 D dBu FS.
# r9 |' M' H7 o& ?2 j4 y[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
3 F" ~/ n! n# F2 r( B desired channel.
) r0 j" [% @/ K: }6 X! {4 n4 C } The “VALVE” LED is on when the Valve Dignifier stage is active.
) e/ h% m/ q! ?* G+ M0 m% A" N[9] INSERT INSERT function.& ^" }: W( O0 y8 z& U- e
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
T9 A- h( |( G) P' O the valve stage (display: “INS”); the Insert Return is directly fed to the Line; ~* i0 B: D% C" }* |* H6 i l& @
and AES/EBU outputs.
' f2 R/ l9 X' z! Z# G# w. y- J Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
# @" C {* n$ F7 o the valve stage (display: “INS” and “PRE”); the Insert Return is fed via4 k$ @. y0 N" a/ o6 A2 W
the valve dignifier stage to the Line and AES/EBU outputs.
: s M9 @: d/ p( k9 k& c. H Third pressure: INSERT OFF, the input signal is fed via the valve dignifier; E% Y/ h( E) x- P" x9 @+ W; |+ M
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output' Y4 p" Z! K! ?
receives this signal; display: none).
& ]" \* }# S& ?' C/ \- [; H Insert Send and Insert Return are electronically balanced and equipped with2 n% \7 K0 u# E
XLR connectors.5 z% a7 z; O' K% A+ d
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
3 K4 K$ l+ i/ t( j ADAT digital interfaces. Each input channel can be switched to one of the- a) l# ^* b1 R3 V- K
channels 1...8 of the multichannel interface. If desired, also a mono mix is( x0 T3 p! k I: B7 q0 b
possible by selecting the same output channel for both input channels.7 b$ T) H1 l! E9 a7 @% n
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
& I2 \+ X& a. {, B) P channel.
$ `, J$ R, {4 Q& a& p' d( g5 W Can be operated only if the input gain selector is in Mic position. The8 y+ a# i I Q/ M& k* i" d, U
setting remains stored when switching over to a line gain setting.: i2 n' [7 c. {; K1 `3 G e
[12] Activates the high pass filter on the microphone inputs of the desired channel.
& k% g4 w, `" @+ X7 g& ^0 m* C Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.* N8 F" T3 O4 H: ] K/ b
Can be operated only if the input gain selector is in Mic position. The
5 m0 b# A! S( g3 b/ y& l9 O v, r) c setting remains stored when switching over to a line gain setting.# ~$ w0 t! o3 q Y2 S, O
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
& V: H8 t1 s0 ?2 W" A$ G[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:* F% i( a. r7 I$ d& l
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
0 l2 f# E! `+ j Noise Shaping (display: “16NS”) can be selected.
" G) V8 W7 d* l" b" ?' [9 R) a[15] SYNC Selects the synchronization source for the unit. Possible selections are:8 a( G8 `; D! _7 v
INT 48 Internal quartz reference, 48 kHz
# R; v9 ?# t9 m) p; o/ W7 \ INT 44 Internal quartz reference, 44.1 kHz4 O% r- I5 L$ w' q2 t
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)1 W% G }2 V# ?0 H" ~ b6 x
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)7 R) \/ p& D- g1 S/ r& h6 n
AUTO Selects sources automatically in the sequence AES-WCLK-INT
2 U$ r. y* U# d VAR Indication only, active if the external source frequency deviates from 48 or
& Y; |% ]$ I f 44.1 kHz for more than approx. ±3 %.0 _3 N( ^2 a5 C" `2 f* `
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –$ c# { D& x6 C; f9 l
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.: A3 W: p4 u, p. A# ~8 `
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
- e% ?4 X0 g# ?+ D/ g the danger of overloading the A/D converter with short signal peaks (if4 ^5 u4 S/ y7 _" V4 H1 d
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,* M/ o9 U$ E! m. X, r2 i+ A7 f# {% ]0 m
allowing for approx. 6 dB reserve before hard clipping occurs7 d4 k8 _: U' t9 g, F U; m
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