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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+ ?7 e/ L6 S& O6 q
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
1 B; o! \1 K1 P8 O! j default settings. The subsequent settings remain stored in a Flash EPROM3 G& @5 _- O0 q% p9 C, }" \
after switching the unit off (unit contains no battery).
/ Q' }1 |5 }" B/ {% P[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
1 ?$ q/ e# A* L" V, s @ between microphone and line sensitivity setting ranges.
% y6 @% c7 |5 h# S Mic: Range –40...+20 dBu
9 [( ]- O: Q. O4 P5 B8 ~ Line: Range +14 dBu, +24 dBu
# l( o' P- A4 p( a3 K[3] Fine Gain Potentiometer for fine input sensitivity setting.
' p0 T; c- k# R Range of additional gain: 0...+15 dB.
% h/ a0 c: I' r. z Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents; B' X9 K+ j8 K7 `
the dBu value of an analog input signal which causes a full-scale output of5 Y7 J& p7 E; P3 K. F
the A/D converter.' w+ _! r6 k( n2 w: e! O
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;6 s, J# E x$ |& T. ?- r
the peak level is therefore +16 dBu. The “Input dBu FS” rotary9 V" j. K0 @4 j) f
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
# R! o! v, H) n% h. G$ D; d" T Gain” potentiometer [3] increases the gain by 8 dB.# P2 {: X1 Q5 v; y& [
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.2 ?! ^8 r4 m6 _$ ~ U
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
: ` X+ H* R3 `3 z have more body; percussive instruments are less aggressive.
3 C: {: o6 F' j The group delay behaviour due to AC coupling of the stages is different in
; h- f n. ?9 g tube amplifiers.
1 {; A3 D6 A8 s The “Bass Warmth” control allows to select the frequency range
, G1 C8 {; U! D. k- C1 X (10...200 Hz) within which the effect is active.
8 v; f i) O; A/ i( }# P[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
* _1 W0 O, V2 O8 F+ u) |- h Valve amps have a characteristic response, mid-frequency harmonic content
" {% c b, R3 N# i, G is emphasized.. n6 Y- k9 x& J" H# I- v
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.0 t- F$ X. y; x3 K! i. D, `
The harmonics spectrum of a delicately overloaded valve amplifier is completely0 O9 X1 d# m5 B6 l" _
different from an overloaded transistor stage.
( s3 `" m* p+ q: i9 T9 J* } The “Gain” control adjusts a gentle overload while the odd-harmonics content! L# w4 J, q; a2 p5 Z
can be adjusted with the “Clip” control.. p, x3 E0 [4 ] W; C: P
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
; L6 N$ E) P" u. x; D( j dBu FS.
( \8 t8 f1 ^- x[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
7 H* [. P% u9 M+ y desired channel.
( Z, }( m8 E. C9 w# @: I The “VALVE” LED is on when the Valve Dignifier stage is active.
m+ i# z# r& ~+ y" K[9] INSERT INSERT function.* _7 e6 A. e# B4 t" B+ L. |; f5 _
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
) ]7 R% P& @. Z0 y the valve stage (display: “INS”); the Insert Return is directly fed to the Line
6 v: b8 f6 J, u5 ?: |* [/ j& Q and AES/EBU outputs.+ p" |- B$ \+ l( r
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
( t& |2 k S/ T9 Q6 r the valve stage (display: “INS” and “PRE”); the Insert Return is fed via5 c x! O* Z! ^/ Q
the valve dignifier stage to the Line and AES/EBU outputs.
9 M- H& f3 P2 J4 |5 F Third pressure: INSERT OFF, the input signal is fed via the valve dignifier- p2 ?; `8 }' a) D/ \- d! n
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output1 ~+ r) K8 X% v1 w1 t
receives this signal; display: none).) T* _% P9 b9 m5 t8 @; \6 i% F
Insert Send and Insert Return are electronically balanced and equipped with" v r% B0 M' ]
XLR connectors. N, J( z% ~& Q
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
) l/ g: Y* [' e# ^* y# L! B/ x4 Z ADAT digital interfaces. Each input channel can be switched to one of the5 R; Z3 |5 }* o4 ]5 g# n
channels 1...8 of the multichannel interface. If desired, also a mono mix is
" R" `* P* t6 x, @ possible by selecting the same output channel for both input channels.
2 G) k# g3 C9 U: x6 R& r[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone& o$ P9 s% V: u q! v# G
channel.
- n# S' m2 }* h6 r4 F( { Can be operated only if the input gain selector is in Mic position. The, {1 h' L0 j' ^8 p" Y4 h
setting remains stored when switching over to a line gain setting.
, ^+ W& {! c; |* V6 s0 r+ @$ u[12] Activates the high pass filter on the microphone inputs of the desired channel.- X; F0 g, u7 D
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.( t0 |* o' o0 p
Can be operated only if the input gain selector is in Mic position. The
/ ?) o. s+ h8 v: ]7 \0 I setting remains stored when switching over to a line gain setting.
' F% K: X( V$ N/ f. A- j[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
! E5 r/ ~% _, C1 p4 j. l[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:& g2 s( T; u* g' Y" ]
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
5 L/ y6 _$ e) N1 r+ `% u+ o: E Noise Shaping (display: “16NS”) can be selected.
5 F$ z% K& @$ J k9 Z0 j, ^* i[15] SYNC Selects the synchronization source for the unit. Possible selections are:
$ o; m( d+ w; `, Q/ r INT 48 Internal quartz reference, 48 kHz, o H$ f: c7 X+ M8 {: F, w& h2 N
INT 44 Internal quartz reference, 44.1 kHz
1 b+ S6 a6 b" Z) j) H( b WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
( p* J/ H' k; x) T* U7 ` AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
1 L6 |7 C9 x. i AUTO Selects sources automatically in the sequence AES-WCLK-INT( ~' B& n3 ]5 G; ~( A6 K, E' F6 G* G) f
VAR Indication only, active if the external source frequency deviates from 48 or
/ [3 q! \' W4 C0 N# W 44.1 kHz for more than approx. ±3 %.* h4 S- e Y3 Q$ Q2 `$ U# h- {" ~
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
3 a7 ?. _% i4 o. b+ r4 m either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.1 P8 z! R9 {& P
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
5 c1 K$ p9 ?% l the danger of overloading the A/D converter with short signal peaks (if
9 P8 i9 F: B( x: s8 _6 V+ d3 {; F active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,. j, i5 _: F9 T2 d
allowing for approx. 6 dB reserve before hard clipping occurs# N9 a8 e+ z6 Q. }
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