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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
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英文电子说明书6 H# T$ I: L9 K/ o, A6 e
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory4 h. X3 [2 D; _. A& K- U
default settings. The subsequent settings remain stored in a Flash EPROM, i- d+ s5 [8 U1 F* g8 ~7 ?
after switching the unit off (unit contains no battery).' c3 v9 ]. O; q# T4 i- r: {3 ?
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position j" c4 Z6 _: ^
between microphone and line sensitivity setting ranges.2 h, o* p# t2 ~, ]+ Z6 l: a; F
Mic: Range –40...+20 dBu
7 s; R% b: f4 T Line: Range +14 dBu, +24 dBu
( n/ ~/ z- s1 S- U$ w[3] Fine Gain Potentiometer for fine input sensitivity setting.6 F: k+ Q0 `; c* h
Range of additional gain: 0...+15 dB.- l: ?, o0 i7 X1 K
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
$ v; a. w& I D0 _: f the dBu value of an analog input signal which causes a full-scale output of
* j# t9 h3 F/ R* { the A/D converter.
6 S; D# _8 }$ {# M9 Y1 X; }- n Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
7 ~. e1 y' Y: e& E0 H6 X9 l the peak level is therefore +16 dBu. The “Input dBu FS” rotary
( E+ _/ Z& n M switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine a- e5 i9 l2 s4 R6 c% e( }" G
Gain” potentiometer [3] increases the gain by 8 dB./ e$ e0 d# e& q& z1 b
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
, t# u# h, k+ g* \" _8 g! C[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
) w& |5 c- \* T' Q5 O+ q9 O have more body; percussive instruments are less aggressive.
3 O0 ]* b9 K6 m. w4 { Q# F: ~ The group delay behaviour due to AC coupling of the stages is different in
% h2 C( W& p' L% Y- Q5 ?" x tube amplifiers.
4 G6 \1 u5 C! r5 f% e q6 o7 ^ The “Bass Warmth” control allows to select the frequency range8 F$ ~# N# ~% x: l; [; Z: }# x
(10...200 Hz) within which the effect is active. Z9 `. I6 P8 t4 o
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
. {6 N5 z; a% ~( Z Valve amps have a characteristic response, mid-frequency harmonic content7 Y( w& Z" r7 d+ P0 ~" B
is emphasized.
* P: I; Q: j( e L# c- A[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.! W' z5 H1 { g' g6 H9 V8 y
The harmonics spectrum of a delicately overloaded valve amplifier is completely
! c+ t- ]0 j: `) U, a( c different from an overloaded transistor stage.1 d9 \% P* ~; L% H9 j3 K: x* M p
The “Gain” control adjusts a gentle overload while the odd-harmonics content+ F, a8 c' [: s f
can be adjusted with the “Clip” control.
+ Z" t% d" Y& j, ?8 m: I[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24/ ~. D6 p9 o2 k6 h6 b
dBu FS.: b# G4 O* D, f% o. {
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the9 e" V8 O; k8 Y3 `1 k" c
desired channel.! M# C7 m3 i% h9 P
The “VALVE” LED is on when the Valve Dignifier stage is active.
- V E4 e& a& p. |0 f[9] INSERT INSERT function.
7 F" q6 Q. \* B First key pressure: INSERT POST VALVE, the Insert Send is tapped after
9 q* p7 ]5 x. r# t" J; K$ o( I the valve stage (display: “INS”); the Insert Return is directly fed to the Line
" y9 ^ h7 l; ^- y p5 H6 p" ^* N and AES/EBU outputs.
. U* V |/ {: g% `" Q1 u Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
' B" n/ N$ l& s A5 i+ Y# ? the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
( x6 I9 F, F. Z: U3 A# d the valve dignifier stage to the Line and AES/EBU outputs.5 E( G( d) Z, |
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
) N$ p4 r x W, G$ ]8 d stage (if active) to the Line and AES/EBU outputs (also the Insert Send output; s- M2 q: g: h' x1 `/ ~
receives this signal; display: none).
* C/ g' a: G1 M7 B* k Insert Send and Insert Return are electronically balanced and equipped with
" C, X& e: ^8 \9 [! F! ` XLR connectors.* E% k( N* R4 U6 ^7 v) r
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
' ?3 C5 I5 q. A: [ h0 x: r ADAT digital interfaces. Each input channel can be switched to one of the, ~& ?- a/ B* K/ x, _4 ?
channels 1...8 of the multichannel interface. If desired, also a mono mix is7 M0 g* b) V' k
possible by selecting the same output channel for both input channels.
8 h+ r4 e, T2 i% k Z) H z k7 A[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone* t8 T0 G3 M( `1 M+ v
channel.& I- y3 V* ?* |
Can be operated only if the input gain selector is in Mic position. The0 [6 K; v# h3 K6 J) u/ W% J) L
setting remains stored when switching over to a line gain setting.
/ u- b- \1 J5 k6 v; }. I# B[12] Activates the high pass filter on the microphone inputs of the desired channel.
& N% ^4 v" h/ g3 s5 y1 E Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.- z9 S+ u! F# B+ ]1 Z$ t
Can be operated only if the input gain selector is in Mic position. The
5 |3 Z1 H" D/ a5 g7 o4 h$ I, B setting remains stored when switching over to a line gain setting.
# {4 ~! D8 |( w7 X8 }% M* _[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
8 U0 Y: w" U3 m* V% R[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:; A, m9 g" X" j
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
4 ]5 I& [$ b ^& w* r5 ]7 { Noise Shaping (display: “16NS”) can be selected.
6 ^: U& n, E+ |# ~$ q8 M[15] SYNC Selects the synchronization source for the unit. Possible selections are:; m. _6 B, ]4 C+ \* _4 }; N
INT 48 Internal quartz reference, 48 kHz1 D! _- e e" m0 {+ j( r
INT 44 Internal quartz reference, 44.1 kHz
/ b' Y! c& B1 ^9 x' V( d WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized). O7 v. q9 F) K6 L. H
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)0 p) t3 E% o2 W/ {
AUTO Selects sources automatically in the sequence AES-WCLK-INT
) T7 y: `7 t3 i# ?9 x$ S+ Q% u1 z1 T% V VAR Indication only, active if the external source frequency deviates from 48 or
, J8 O7 T3 O5 z) ^$ G 44.1 kHz for more than approx. ±3 %.
) M6 K" h( h0 Q; {. ], [2 P2 W[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
0 B! e6 f6 d' G, k# T" A+ p: { either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
' h7 G& n5 T, ^+ ~[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce3 R! f) l' Q7 m9 Q
the danger of overloading the A/D converter with short signal peaks (if9 v1 e6 r( P0 y0 [, }
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
$ u+ O. e; b) |) O1 p0 j allowing for approx. 6 dB reserve before hard clipping occurs
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