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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 6 E' O' X: k4 I- f4 R. o
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英文电子说明书
* e6 S% q9 ?9 @' z[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
: R, X2 n% K# T! d- w5 ?: r0 ^ default settings. The subsequent settings remain stored in a Flash EPROM
* O* `7 y/ Q6 p: ^ after switching the unit off (unit contains no battery).
- {' H" l! B5 y- A% u( _[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
& o/ |# y. y( M4 m; a3 H between microphone and line sensitivity setting ranges.' y/ ]6 U1 \4 n# r- n& j
Mic: Range –40...+20 dBu7 C2 ~2 C' K6 J' f3 n# P& J
Line: Range +14 dBu, +24 dBu* r- n3 X C# t) h" |7 A
[3] Fine Gain Potentiometer for fine input sensitivity setting.
% g# {; [) O$ q# o4 D2 t1 J Range of additional gain: 0...+15 dB.! w$ a/ f+ s1 Z% ?
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
' g3 x% U4 r. R5 J( J4 N the dBu value of an analog input signal which causes a full-scale output of5 x8 A0 U/ e& W& f( M( l$ E8 `' C
the A/D converter.4 G0 h' H# {, W6 n+ d' ]; Y
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
" L, c( {# p( g/ x" s3 M+ n* q6 D the peak level is therefore +16 dBu. The “Input dBu FS” rotary
' l. b) D. }& N) J$ v2 T5 W5 ` switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
: E7 I. I& P" L, u! U2 G! ^ Gain” potentiometer [3] increases the gain by 8 dB.
' ~- U7 y" m7 f8 ~ k# Y# H A[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.0 w$ L8 u. ~" i, d
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
6 @( t2 h, `. [. L! s7 b# ?' b0 b: Y have more body; percussive instruments are less aggressive.0 B% e! s' \: k- M1 {
The group delay behaviour due to AC coupling of the stages is different in# T- S0 B8 q6 d9 A6 j+ e8 E
tube amplifiers.) S/ m! u3 Q" h( T5 U
The “Bass Warmth” control allows to select the frequency range
8 i0 Y8 }. p3 c+ H0 `+ Z/ ? (10...200 Hz) within which the effect is active.' Y, W0 W4 j; ~# c, V0 N
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.5 W0 I, R' v8 ^" k- ~8 J$ @
Valve amps have a characteristic response, mid-frequency harmonic content
; X- F7 {! f: |9 P is emphasized.0 Y1 r6 O+ o U6 l8 v1 J7 h
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.0 K- M9 e) u, G8 ]& R' S- D w; k
The harmonics spectrum of a delicately overloaded valve amplifier is completely
6 a t- p" p' P% X- A2 ?/ o+ W, O different from an overloaded transistor stage.
9 c* J0 O! D; B5 | The “Gain” control adjusts a gentle overload while the odd-harmonics content4 W V! f4 Y: d$ u' \2 M
can be adjusted with the “Clip” control.6 g0 P. g: M9 |2 v
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
, }% s7 e/ q( M dBu FS.
7 V n! T6 i% S( _( E[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
& ]5 a: z+ ^' K$ g' d+ P0 X8 Z# ? desired channel.* Y5 h' Y1 i+ K6 V( s$ j
The “VALVE” LED is on when the Valve Dignifier stage is active.
& s8 u$ |+ @# F7 E8 d6 }4 {$ q. h[9] INSERT INSERT function.
$ |- T$ |8 h- \8 f* ]2 b! O% w First key pressure: INSERT POST VALVE, the Insert Send is tapped after
4 u! L% L2 N) z- k/ U' t the valve stage (display: “INS”); the Insert Return is directly fed to the Line
/ _( h) }& k1 \+ H and AES/EBU outputs.
O h+ u/ g) f Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before9 H# W4 ~, ~. V/ y9 k. U' a" G
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via" c* E( n% @9 n+ D: G0 G2 n
the valve dignifier stage to the Line and AES/EBU outputs.
p% I5 [. B5 S- `# W+ q' G Third pressure: INSERT OFF, the input signal is fed via the valve dignifier. s8 O. Y9 ]8 B2 c$ P" ~- e. x
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
# V) @9 \" w% g6 T receives this signal; display: none).
5 `- [3 y. z) i7 x7 f Insert Send and Insert Return are electronically balanced and equipped with
2 N, h% d" X1 r$ ^ XLR connectors.
& _+ B. t) T8 U _[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or& u" \4 C1 z/ a* O9 @
ADAT digital interfaces. Each input channel can be switched to one of the
9 g4 Z a- N$ f. f3 ~ channels 1...8 of the multichannel interface. If desired, also a mono mix is* I. U& h8 y. p/ R/ U
possible by selecting the same output channel for both input channels.1 A$ o3 {7 b* e* l7 f- P
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
; l7 G$ [1 _( }1 U channel.
( D1 |, V/ F( H% K/ p Can be operated only if the input gain selector is in Mic position. The& T F% p! v/ b, A4 r% H
setting remains stored when switching over to a line gain setting.
4 ]9 p* W: C$ H& o[12] Activates the high pass filter on the microphone inputs of the desired channel.' I. T: J0 m7 m5 Z ]
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.2 s+ k6 n7 h5 ^) k! d/ b
Can be operated only if the input gain selector is in Mic position. The
( ]2 y2 q5 [0 D) A setting remains stored when switching over to a line gain setting.& ^' D3 \# L, |, R
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
- m2 F3 B# T$ v[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:+ ^2 u7 G+ W" O' N" q, F
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
6 n) h3 C" f* }0 @ Noise Shaping (display: “16NS”) can be selected.
& @7 R3 [, M, L. u% ~[15] SYNC Selects the synchronization source for the unit. Possible selections are:( C2 h# Z4 c: i( \% H; _2 r* k! G3 ~
INT 48 Internal quartz reference, 48 kHz
6 J0 Y( k3 u( [' n/ T8 I INT 44 Internal quartz reference, 44.1 kHz; Y5 e2 A6 H: Y
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
& S; d* `/ ?" l! r' c1 u AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
0 L6 X0 m6 {4 n% p- v& D/ m AUTO Selects sources automatically in the sequence AES-WCLK-INT3 Z J+ J) G( R/ K6 W
VAR Indication only, active if the external source frequency deviates from 48 or
$ [, S2 c" U- S: X3 Z 44.1 kHz for more than approx. ±3 %.
9 W8 |: h7 u) ]2 G2 M) ^6 V[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –, u: u, W' @" W' Y3 F! t: u: J
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s. z4 E8 y: a1 N2 Y
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
" O2 G' U0 j- s) Y the danger of overloading the A/D converter with short signal peaks (if- E* N4 X2 s' e) G1 g6 O
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,$ [( ?7 m9 R# H( C- ~6 h
allowing for approx. 6 dB reserve before hard clipping occurs2 u C7 B1 N6 @9 `( [) S
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