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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 9 e% j5 y5 S& F$ a w+ d- d" Z) ?* O, K- ?
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英文电子说明书5 \3 m; W& A( e" {
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
# p4 _ e( ~$ [3 t/ e P" _* u default settings. The subsequent settings remain stored in a Flash EPROM
; R* W/ t$ g/ _ after switching the unit off (unit contains no battery).
8 F% T6 H3 L& w[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
% f* V5 o& H/ y5 [7 Q. _# e: c between microphone and line sensitivity setting ranges.
) d- }: X! ]' D V, G Mic: Range –40...+20 dBu3 O$ b9 S- g4 a
Line: Range +14 dBu, +24 dBu
5 }3 d N, g0 [ {: S9 W0 O; @( ^[3] Fine Gain Potentiometer for fine input sensitivity setting.$ ~, J K0 z# D
Range of additional gain: 0...+15 dB.
$ u& [( U; D; o- M Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents' o7 H! @. }4 R! W, l! P# C2 o
the dBu value of an analog input signal which causes a full-scale output of
P/ j! Z: a: L' ]8 u) |: d the A/D converter.
+ I( N$ [6 X8 k3 B Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
" x; D2 N1 c1 I/ c( D$ V& g the peak level is therefore +16 dBu. The “Input dBu FS” rotary2 |* n- }) Z& {0 D" o7 J/ c
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine5 c6 z2 x: t! \* w {
Gain” potentiometer [3] increases the gain by 8 dB.3 n k4 V! J) F
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
9 `1 \' A9 Z. W* h) W8 x. v. _[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
& m, L4 @* R; V9 j have more body; percussive instruments are less aggressive.
, n6 H! v+ [3 U' Y* q1 k4 c+ q The group delay behaviour due to AC coupling of the stages is different in
" V' a9 d! m' @& ~6 ^ tube amplifiers.
5 `$ d8 M ^( B* s9 v. @3 g; u The “Bass Warmth” control allows to select the frequency range
! j& g0 {. I) f2 N( b K5 w# q (10...200 Hz) within which the effect is active.
5 T& w2 d+ ?( m[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments., j5 K/ w7 r) y
Valve amps have a characteristic response, mid-frequency harmonic content/ e! G; x) j$ |$ l8 v
is emphasized.
* i) u v: v. J) X2 a! C7 }; k[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.: F6 U6 U" ^" v" C; {
The harmonics spectrum of a delicately overloaded valve amplifier is completely0 y; t! l; R% D8 [1 h# t* B
different from an overloaded transistor stage.9 F- ?9 I0 l7 p, C
The “Gain” control adjusts a gentle overload while the odd-harmonics content
Q1 ?3 s+ E- b/ S6 A can be adjusted with the “Clip” control.
& u0 q) c5 n/ D[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
; ]4 }! U* F- e% T5 ]$ H dBu FS.
: G8 |. `1 [3 Y8 M) V' y" z[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the' d4 v7 ~7 \1 f
desired channel.( q1 D/ \5 N; v' |) z r, ?
The “VALVE” LED is on when the Valve Dignifier stage is active./ \1 |0 ? H* z. m* f( d
[9] INSERT INSERT function.
' C1 W0 O' ?- r9 x4 l) k0 R First key pressure: INSERT POST VALVE, the Insert Send is tapped after
# w9 t& ]+ Q2 ^; d, F! H9 C the valve stage (display: “INS”); the Insert Return is directly fed to the Line
8 ]8 o' Q O: _6 n and AES/EBU outputs.4 q9 Z9 W3 r, t
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
) X/ S9 q8 A/ s# c( H the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
( n+ T5 C! @# h! \0 {6 z; F! | the valve dignifier stage to the Line and AES/EBU outputs./ P2 [* l, X5 ~( S' h8 I( E
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier$ |$ N5 h8 B! L& ]6 L Q) L9 ~
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
3 |1 b8 d: a0 h% f/ U6 H, p: f" y receives this signal; display: none).
0 I4 ?) k& M' s2 Q Insert Send and Insert Return are electronically balanced and equipped with/ ?2 u8 a, A3 N% C
XLR connectors.
; E5 X5 e3 }6 N" P6 j6 T! x[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
q2 k+ h3 e" v$ U, b9 W ADAT digital interfaces. Each input channel can be switched to one of the
+ O% \, F: p. | w& s+ E channels 1...8 of the multichannel interface. If desired, also a mono mix is2 p/ K. ^9 \; d( w4 @
possible by selecting the same output channel for both input channels.
! R) @: I/ y- i4 ?3 {0 m[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone, e1 t8 S- r" N, U k* N8 Y0 ~
channel.0 }2 H4 E$ s5 U9 U* V2 g$ V$ Y0 m) n
Can be operated only if the input gain selector is in Mic position. The& u u' F* \5 }2 ^1 I* C5 h$ }
setting remains stored when switching over to a line gain setting.
y( c. A: Z0 O- T# p3 O ?' I[12] Activates the high pass filter on the microphone inputs of the desired channel.. ]( @2 W" E+ {' f' r' b
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
0 Y# d5 J9 `0 B) i+ | Can be operated only if the input gain selector is in Mic position. The) o1 p4 c% Q( I' c0 f5 i
setting remains stored when switching over to a line gain setting.6 f$ o! S5 M: u& [! @# N0 A t
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.# A/ ?( ^9 [: G% ?( U+ s, Z4 [
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
4 v9 |% g6 t) G# a3 O( |, r “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
\ w% |, }' J; M/ a Noise Shaping (display: “16NS”) can be selected.
# [6 h7 F; U! l/ p. b[15] SYNC Selects the synchronization source for the unit. Possible selections are:
6 Z3 R5 w* E! M' }2 ^ INT 48 Internal quartz reference, 48 kHz1 ]+ N0 T! I4 [: i3 {- A$ N
INT 44 Internal quartz reference, 44.1 kHz
; e! r% y6 U( E% n g WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
5 B# p8 e7 \- I7 t) Z AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized). I7 g' @2 N, V+ v( V
AUTO Selects sources automatically in the sequence AES-WCLK-INT
3 O) \3 B6 P7 P: V- O3 s1 R VAR Indication only, active if the external source frequency deviates from 48 or3 ?/ l" R( D3 N7 F" U A" e
44.1 kHz for more than approx. ±3 %.
) S4 `) x# E( `9 f$ b, X[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
: q7 K# f" E% K9 T* _ either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
% K# n( j2 Z$ C! t[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce7 Y5 c' ^; d, V0 x& d: Y
the danger of overloading the A/D converter with short signal peaks (if* `5 N" A* N) x& n" F/ a
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,6 Z: D2 d3 l1 k$ I# G
allowing for approx. 6 dB reserve before hard clipping occurs
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发表于 2012-5-20 00:17:32
