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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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H& D% I3 Z' p5 X5 Z3 U2 }英文电子说明书
5 L! O2 I- l6 c. ~: R' F- o[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
, _0 G+ W1 h+ r8 z, u4 B! C# z+ a9 ~ default settings. The subsequent settings remain stored in a Flash EPROM
8 D& X6 s+ t- G1 x9 A# e6 m( j after switching the unit off (unit contains no battery).. @; V2 t2 j8 e) \+ _! n- r' @! j
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position: @* _$ B- Q2 m, e
between microphone and line sensitivity setting ranges.
: E4 x3 x$ S# p6 `8 q b2 X. ] Mic: Range –40...+20 dBu& `* K; q8 E0 ^0 Y; J
Line: Range +14 dBu, +24 dBu
6 o6 S+ d7 S' N) t& d[3] Fine Gain Potentiometer for fine input sensitivity setting.
+ e5 ]4 c8 u* q, p( S( Z X' T+ X/ r Range of additional gain: 0...+15 dB.: Y# P7 V) I5 X# q; |+ P+ P U
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents8 N& b+ u- J. Y* p) b+ P- n
the dBu value of an analog input signal which causes a full-scale output of
- F( B/ x& E) l/ t' N- ] the A/D converter.
. J; o1 N8 S( _, `3 ]7 r( p4 M Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;' i9 C! l& E9 s
the peak level is therefore +16 dBu. The “Input dBu FS” rotary% Z8 h5 T2 f7 \( b
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
9 d3 I+ v$ G0 \7 W9 | Gain” potentiometer [3] increases the gain by 8 dB.% F8 G& Y& q) Q- U" V1 ~8 L
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
2 W7 [/ _3 Y+ r% `! p' E$ r[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
9 U; l9 ]3 j) s/ J+ P2 g3 y, n have more body; percussive instruments are less aggressive.2 M W* n% O1 R- k: l/ Y
The group delay behaviour due to AC coupling of the stages is different in* ^/ r* Z Q( M$ T: j
tube amplifiers.
# ^/ E7 Q% T! y+ ?0 J' M The “Bass Warmth” control allows to select the frequency range5 h% y5 g- @. K$ x
(10...200 Hz) within which the effect is active.
7 y7 ^4 ~4 W# W% k2 W) o[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.1 z" A$ [$ _( V9 {4 z" V
Valve amps have a characteristic response, mid-frequency harmonic content, y% B% s, {3 ^% j
is emphasized.
6 F4 w4 f ~' ?& V% S8 E[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
# O/ i4 K' F+ a& r3 z" f8 V The harmonics spectrum of a delicately overloaded valve amplifier is completely
: e, H- T$ ?0 y different from an overloaded transistor stage.( l Z$ P9 }' U
The “Gain” control adjusts a gentle overload while the odd-harmonics content
. x4 N' e' p: S3 ` can be adjusted with the “Clip” control.( a) k# { g* R8 O6 p9 E0 u
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
$ j* f9 z0 S9 {6 W( G dBu FS.
6 o+ t1 f6 r+ i[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
; D1 p+ G1 l2 Y, U: T# K- Z9 Z g/ \ desired channel.5 W ?% G8 Y% v# w6 Z
The “VALVE” LED is on when the Valve Dignifier stage is active.
# m3 E( b" m$ E! [' o, Q[9] INSERT INSERT function.
3 A" [2 C% C# o4 v! k. V6 D, { First key pressure: INSERT POST VALVE, the Insert Send is tapped after( i5 R0 W% B4 B' G$ f( M; b" x
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
, x- @/ J% Q( c: ?* X& U, F' ~ and AES/EBU outputs./ y7 f) O& z7 _; b2 v
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before+ d. D) Z! E8 M
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via2 t, j2 g0 A m- @
the valve dignifier stage to the Line and AES/EBU outputs.! R; n0 r( X- X ]6 x- s
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
/ P) n; a; `; W" B* ~ stage (if active) to the Line and AES/EBU outputs (also the Insert Send output4 r# m, t! I2 P2 m
receives this signal; display: none).
( h7 S6 B8 x' V, M/ v Insert Send and Insert Return are electronically balanced and equipped with
. b" u) g- a; J5 a. ^3 @" Y XLR connectors.. S& h+ E% F. Z Q$ v) {+ w3 N
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
y. ]: Q+ v" ]) J) Z ADAT digital interfaces. Each input channel can be switched to one of the
0 f% W; @- |4 `' [ channels 1...8 of the multichannel interface. If desired, also a mono mix is
* j" k) C2 [$ ?7 g. j1 D possible by selecting the same output channel for both input channels.
9 l4 x |9 C! @' r[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone7 b3 r8 Q2 i# m5 ~9 P6 X
channel.
1 f6 r, K1 h+ j- E# A x ~! i Can be operated only if the input gain selector is in Mic position. The
9 w% y! h" O# d8 f+ N! b setting remains stored when switching over to a line gain setting.8 X, h3 H) `, e2 Y0 r' m
[12] Activates the high pass filter on the microphone inputs of the desired channel.8 @- V$ g- P7 l5 S" L Y
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
6 a L* F# B8 g& @# d# z5 O Can be operated only if the input gain selector is in Mic position. The
5 [- a7 F4 D9 \7 [ setting remains stored when switching over to a line gain setting.
, N+ Z' Q( `* ~( O& b- U[13] Ø Toggle key to activate the phase reverse switch of the desired channel.+ X5 }( N! r) M- ~
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
- |" U& ~1 `, {$ a$ ] “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
& x3 i. t: [6 h9 G; r4 { Noise Shaping (display: “16NS”) can be selected.2 d# X' [$ U8 D/ P$ H- }( j
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
; X6 y9 q4 i% H/ g, N8 u$ x INT 48 Internal quartz reference, 48 kHz/ C+ d3 \: ^$ s6 j+ `# H! V
INT 44 Internal quartz reference, 44.1 kHz
$ g+ t$ V" Z, m: w- {, K WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
; {7 v i! w! c. q% w- b& d AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
% l e4 ]2 }+ G AUTO Selects sources automatically in the sequence AES-WCLK-INT. ?" O b3 \, Y' S
VAR Indication only, active if the external source frequency deviates from 48 or
9 c; w* h1 q E 44.1 kHz for more than approx. ±3 %.
* U j! d" F8 |" N+ x4 U5 l) U[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
- ? Y: \: c( S: p. t0 N either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
' r: P2 d- P3 n8 c- |[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
1 `; k ^2 S% R# k: k: x4 T# r the danger of overloading the A/D converter with short signal peaks (if% ~, E z. |9 l: U1 O) s9 n' J/ m$ j
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,3 P6 b; f( C1 b* f8 V
allowing for approx. 6 dB reserve before hard clipping occurs$ ^) F& s" k+ C, [: u$ J
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