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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 " I. V, _# t! |4 L; m7 Z
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英文电子说明书
2 t& P; P8 q8 \4 F8 h) ][1] POWER Switches the unit on or off. The unit is ready to operate with the factory9 O5 v- l. Y. ^/ j
default settings. The subsequent settings remain stored in a Flash EPROM8 @) X3 |" i$ b( G; n* y" B3 h
after switching the unit off (unit contains no battery).
' I8 F& X! K% P. _0 o; w[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
7 t0 P; X. D% Z- a5 W7 L& I t, S between microphone and line sensitivity setting ranges.) s9 [4 X6 F, c1 J, W
Mic: Range –40...+20 dBu5 P; x0 M# p/ C. \9 P2 A) O
Line: Range +14 dBu, +24 dBu
) I) B3 |% k3 N[3] Fine Gain Potentiometer for fine input sensitivity setting.
8 T3 `! @, g, ` Range of additional gain: 0...+15 dB.
9 I6 J+ C# @& _" k9 n b q: x& K Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents# \) a& W h* F0 w& Y
the dBu value of an analog input signal which causes a full-scale output of
5 D! E) q0 R) u the A/D converter.
# C7 Z: V( A8 n7 s Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;9 i8 E. O% x! Q8 x# L4 Q
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
% F! f7 t! J( p0 R# `1 ?) d4 r switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine s1 w; e4 K" M
Gain” potentiometer [3] increases the gain by 8 dB.. C- Y4 Q" p' U) x7 V
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.3 K$ P$ y+ L; t$ \5 G1 b
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals0 z' c! |2 G9 ~: B
have more body; percussive instruments are less aggressive.
% \4 n, B. G$ h n1 ` The group delay behaviour due to AC coupling of the stages is different in
+ ~, \# B4 Y$ K& U% v4 ]9 D$ v- Y# a; y tube amplifiers.: ~. L7 X. |% ~9 l% j! C6 ^/ k
The “Bass Warmth” control allows to select the frequency range
! _* ]; v5 A" Q1 R (10...200 Hz) within which the effect is active.
! D& H: N$ c( _[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
- _0 `8 A6 S1 \* U1 t$ Y. w/ h0 O Valve amps have a characteristic response, mid-frequency harmonic content
4 [- V8 G! b' x9 k/ v# J P5 _3 t+ a is emphasized.; `$ h" u, u7 y2 \) f$ `) h$ ~1 I
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
' M: r9 b) p; P r+ x! L The harmonics spectrum of a delicately overloaded valve amplifier is completely+ n) ?, a5 ^5 n6 x# s6 Z5 f7 A
different from an overloaded transistor stage.
5 @/ E: J/ h7 H* H6 | The “Gain” control adjusts a gentle overload while the odd-harmonics content2 H7 g* C* Y6 _, a S( o4 b
can be adjusted with the “Clip” control." O7 |0 P# g" R" o$ E- ^
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...242 ?# ~: `: t+ s% ~
dBu FS.
+ K T; A3 M7 S# }* i% |[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
* x7 x% }4 I) ^( _ desired channel.
1 H: r, g+ b% o4 p9 K The “VALVE” LED is on when the Valve Dignifier stage is active.
# }- U+ h( A( v1 M4 K[9] INSERT INSERT function.0 c) y+ e7 b) f1 Y: H- q* O8 h9 w1 {
First key pressure: INSERT POST VALVE, the Insert Send is tapped after6 K1 d2 @2 o# c) G y) Q
the valve stage (display: “INS”); the Insert Return is directly fed to the Line4 n0 J& W" U/ b% l, G
and AES/EBU outputs.
4 m0 K/ Y, `9 \ Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
9 u( c" l$ u8 s2 X& L9 J% K8 P the valve stage (display: “INS” and “PRE”); the Insert Return is fed via. Q1 j" Y+ c0 g4 n# X9 c
the valve dignifier stage to the Line and AES/EBU outputs.
% e" J8 L# g& {/ Z Third pressure: INSERT OFF, the input signal is fed via the valve dignifier3 L- o3 D# \/ \$ q
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
# p. p7 c1 x# A% |$ }- ^ receives this signal; display: none).# a( N+ A1 y/ z- K& s- Q, e p
Insert Send and Insert Return are electronically balanced and equipped with
3 c. ]$ z0 Z' J) F: y+ U" v$ ` { XLR connectors.7 Z* `# x, E: D1 O
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or) i) L: k+ n: J$ i
ADAT digital interfaces. Each input channel can be switched to one of the
" C% ^, ]+ f- O5 ] channels 1...8 of the multichannel interface. If desired, also a mono mix is- k" w6 q9 G9 ?5 G- i, u; ^' a
possible by selecting the same output channel for both input channels.7 R) x+ ]3 _/ H* D
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone) p( U! b1 H& q# j
channel.& y! ~+ E# R! C* a5 q! Q6 A; \3 g- R
Can be operated only if the input gain selector is in Mic position. The# _* s9 X# o) J1 s/ i- Z
setting remains stored when switching over to a line gain setting./ @. g) ^! ?; e+ e
[12] Activates the high pass filter on the microphone inputs of the desired channel.' O6 f- x% p8 H/ L
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
, T) v) Y) J; O6 x5 y9 e) J- ~9 l Can be operated only if the input gain selector is in Mic position. The, ~4 R/ ^, q; C6 ^
setting remains stored when switching over to a line gain setting.
2 S8 J+ Z0 ~% _[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
9 y# L2 p" ^8 i[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:+ P) _: ]6 ~7 a# i. u
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with& v# X- Y: P4 ^5 }0 p% [
Noise Shaping (display: “16NS”) can be selected.
5 t5 A( f# G) F4 y" {9 L[15] SYNC Selects the synchronization source for the unit. Possible selections are:8 K0 a8 e7 }/ W6 H/ f+ I5 ~
INT 48 Internal quartz reference, 48 kHz6 n3 _- N% g" \4 Q# X3 `
INT 44 Internal quartz reference, 44.1 kHz# `7 D9 k* ~5 O$ q, c6 U: f
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)1 `8 _+ r1 s, [6 H1 P+ \9 s& m
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)- e& ?+ O) q8 ^6 Q) E% p1 m1 g
AUTO Selects sources automatically in the sequence AES-WCLK-INT
% |" O3 W l- [0 I# w8 D! y7 i/ [ VAR Indication only, active if the external source frequency deviates from 48 or- |9 y7 h2 ] A$ r# V" P- ^/ `
44.1 kHz for more than approx. ±3 %.. Q/ _7 e. j! t, |* D
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
$ r% t/ C; O* [2 e1 P either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.3 {3 H2 ?4 R8 [6 P# Z+ B3 U
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
% g( b- b+ G; ^5 O% E5 L1 f the danger of overloading the A/D converter with short signal peaks (if
3 ]. b1 H; v2 _: Y" { active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
/ h. d- G) ^' } allowing for approx. 6 dB reserve before hard clipping occurs- L# Z- O6 x8 N. r8 x
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发表于 2012-5-20 00:17:32
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