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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 / F6 X' ?& G1 ~! }9 S$ @; Y) J
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英文电子说明书
, u! n5 D$ r* _) i[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
7 a, B; z6 a7 t; {, D8 W default settings. The subsequent settings remain stored in a Flash EPROM
, D4 r u% g/ z( b' [ after switching the unit off (unit contains no battery).
u0 h" M( T# }/ P- f[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position5 m& |3 F4 W# s, p/ F) s
between microphone and line sensitivity setting ranges.
- l* f V6 B9 v Mic: Range –40...+20 dBu
: h( G% [9 U* s9 ^ Line: Range +14 dBu, +24 dBu
, L. Q s# H4 y* N7 l) z[3] Fine Gain Potentiometer for fine input sensitivity setting.9 o8 p2 R/ V% S9 u
Range of additional gain: 0...+15 dB.8 |6 N% q. m/ p* d4 |0 @0 ]
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents7 H5 c4 l2 `& f$ j
the dBu value of an analog input signal which causes a full-scale output of
+ ^5 A( Q( r/ ~+ s+ }& v the A/D converter.
& J% V" ?, W: X* C( s- Z; K) P Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
; m4 y* b' f; R! e& Z the peak level is therefore +16 dBu. The “Input dBu FS” rotary
$ @1 y% b/ U0 A% }" ~; Y switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine, l* `+ `; h4 f4 M
Gain” potentiometer [3] increases the gain by 8 dB.
1 r/ p7 x5 M0 T: u[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
6 Y0 I% d# F W& Z/ C, v M7 S[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
) E7 W7 k7 M6 H have more body; percussive instruments are less aggressive.$ x8 ^( N6 W+ n
The group delay behaviour due to AC coupling of the stages is different in
5 B5 S h& `; _5 `! L" u2 ~, d8 K tube amplifiers.1 x. c' j% j" p& N3 E
The “Bass Warmth” control allows to select the frequency range
4 A; C$ u+ d; P4 `8 m (10...200 Hz) within which the effect is active.; R6 U3 S; a' s0 `
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
( B8 U- B! w' Z( m Valve amps have a characteristic response, mid-frequency harmonic content
: u! t( q3 ]( Z' Y: a is emphasized.& H+ B+ t0 ^0 x6 e+ e& |% p! z# B( C: R8 Y
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
: z% Q: P d) D0 _" M9 n( A The harmonics spectrum of a delicately overloaded valve amplifier is completely
$ k, I+ A, z$ m different from an overloaded transistor stage.3 x3 T; ~9 ?0 x: @
The “Gain” control adjusts a gentle overload while the odd-harmonics content
& m7 }4 W% J3 M- M% x; `3 I3 m can be adjusted with the “Clip” control.
8 L5 z* `& f$ z8 A" r( ~4 k6 b[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24! w0 c* F2 I" b) g7 k& f
dBu FS.
9 O2 X( F3 @$ Z# b[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the, E* n% I5 j6 i) Y( x8 W( n
desired channel.
8 e7 L' u( [! I; |' Z The “VALVE” LED is on when the Valve Dignifier stage is active.
* F1 m9 A- t; x* l$ G* v[9] INSERT INSERT function.
$ k6 O* O' d0 i5 H First key pressure: INSERT POST VALVE, the Insert Send is tapped after
. k& v) X8 ?4 Z8 U$ | the valve stage (display: “INS”); the Insert Return is directly fed to the Line
I1 |/ @ \ K$ y+ \4 C and AES/EBU outputs.
5 H% C% a* R9 {6 L Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
, y* A( @+ P; ~ the valve stage (display: “INS” and “PRE”); the Insert Return is fed via I) C! d& z+ A( i& Y/ D
the valve dignifier stage to the Line and AES/EBU outputs.
% n T2 d u# O( ? N) D Third pressure: INSERT OFF, the input signal is fed via the valve dignifier; X$ q1 C# ~/ O1 S" H- ~6 [: G3 Q
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
/ ]% q/ V+ r# C+ T5 i receives this signal; display: none).
" S+ E5 L, k# c# x: I: J0 @" ^ Insert Send and Insert Return are electronically balanced and equipped with
" q. ?% u7 P% w- ^ XLR connectors.' S$ i5 o. w8 H7 a
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
' @" U2 Y6 L" t9 @0 g9 Q6 R ADAT digital interfaces. Each input channel can be switched to one of the- W$ P' i/ R6 l9 y/ m/ C
channels 1...8 of the multichannel interface. If desired, also a mono mix is
( X" e( a- f1 L) R( I possible by selecting the same output channel for both input channels.
' L$ ~- ?5 ^2 o& ^[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone+ E# Q6 X+ R5 E( I
channel.
4 q( A E& |/ ^/ V1 ?0 _ Can be operated only if the input gain selector is in Mic position. The
: `* a; G/ j3 Q* N; E' s9 R setting remains stored when switching over to a line gain setting.. e0 {7 j: L X
[12] Activates the high pass filter on the microphone inputs of the desired channel.
* R. D. y+ S) X* @3 j w8 A+ k Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
# |# A! q1 a9 i# F* s3 J Can be operated only if the input gain selector is in Mic position. The N, Z+ M) w- `: h4 h8 v% y+ f
setting remains stored when switching over to a line gain setting.
5 D. Z5 M6 M2 j5 g$ t4 `) d8 j[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
4 t6 v- I, Z. L. m! D: k. Q3 U[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:9 h1 Z3 _9 X8 }: r) @
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
, u& a/ F7 G, V' B& v8 | Noise Shaping (display: “16NS”) can be selected.
- B( P! ]. k6 t5 X[15] SYNC Selects the synchronization source for the unit. Possible selections are:4 D6 q9 w/ i/ Y; K
INT 48 Internal quartz reference, 48 kHz: x" y: O! F& y+ ^- M5 ~
INT 44 Internal quartz reference, 44.1 kHz
6 l _' p& H& J9 m1 B WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)! k% |6 O4 o3 B+ _* y" \
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
+ z, d/ c2 x# j) k& S AUTO Selects sources automatically in the sequence AES-WCLK-INT* n3 L1 k& F" C, T* L: v& @
VAR Indication only, active if the external source frequency deviates from 48 or$ M" [( Q7 G# Q+ K" D
44.1 kHz for more than approx. ±3 %.2 A9 g$ @) R; T4 I7 W, {
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
& G) S/ q4 G/ N6 _; L6 e8 | either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
- K+ c+ m8 v# o0 a6 j[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce, d3 Z! P# }! C0 e! T& B; N
the danger of overloading the A/D converter with short signal peaks (if7 {2 s! ^4 g) x7 L( I
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
3 t0 u! s8 R5 k5 G allowing for approx. 6 dB reserve before hard clipping occurs4 }' w: [) e" Z- F
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