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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: p) B" f. B3 a9 o- I$ H/ ?
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
2 U! T0 x+ l0 c; s% a& k default settings. The subsequent settings remain stored in a Flash EPROM
$ U" ?9 [& G5 P3 K; x& b7 l after switching the unit off (unit contains no battery).& F4 p0 ]" y; }1 H. J2 V
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position9 ?* q. o/ ^; Q" Q
between microphone and line sensitivity setting ranges.0 F- h9 D7 d; \# S& W% x" B
Mic: Range –40...+20 dBu# t( h4 |( G" o' [+ L
Line: Range +14 dBu, +24 dBu- V" p3 |# k8 _2 m" Z# g! g l
[3] Fine Gain Potentiometer for fine input sensitivity setting.2 a9 C1 B$ y' I
Range of additional gain: 0...+15 dB./ X/ L0 x6 [( F; L- i, m& _0 X* {& V
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
, v2 ^% |0 W. [2 D% ~* g the dBu value of an analog input signal which causes a full-scale output of
8 V. c- Y+ ~7 m7 e the A/D converter.9 r9 F4 T3 j3 k- G- [2 l' ?
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
; ~# E! P9 _# t5 e the peak level is therefore +16 dBu. The “Input dBu FS” rotary* |* T/ ?6 S) s8 ?# E
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine: A; t u) V$ u2 J
Gain” potentiometer [3] increases the gain by 8 dB.3 Y6 f- f- j: d1 [+ ?; y
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
- c, l8 D7 m# [/ Y* Z5 r[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals7 @$ k7 J5 }1 [
have more body; percussive instruments are less aggressive." m3 g7 x- V: T- \$ [8 q
The group delay behaviour due to AC coupling of the stages is different in
% A7 E+ `! v# q/ P' ? tube amplifiers.9 a; _0 \3 ]; ?4 ^& Y- m& |2 P( U
The “Bass Warmth” control allows to select the frequency range* ~, [& Y6 M' {- D
(10...200 Hz) within which the effect is active.
6 j( ]$ e3 z& u8 s7 }9 y- ^. b! j[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
3 A. N% ?9 X+ d. w6 i9 Y; w- m Valve amps have a characteristic response, mid-frequency harmonic content2 ~8 J, ]/ c, R+ S9 l8 ^ k
is emphasized.. u3 T; r D9 w* q
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
) F3 T; L/ J* t3 b& \. g The harmonics spectrum of a delicately overloaded valve amplifier is completely$ w$ t$ a9 \. v* A+ M7 V8 C
different from an overloaded transistor stage.; Z2 e! C8 m1 O. w9 Q h$ {
The “Gain” control adjusts a gentle overload while the odd-harmonics content
7 k; Y. K/ _+ J+ g/ @ can be adjusted with the “Clip” control.3 w0 N2 @6 [4 G/ D8 Y' f( ]
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24( L, u7 l; Y( A, u2 h6 H0 Q
dBu FS. W2 X8 N0 F5 |$ K. ~' v
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the2 a$ T. k# q, N% ?5 U+ n6 G( E
desired channel.
! T/ N5 R9 _/ q) o The “VALVE” LED is on when the Valve Dignifier stage is active.
, J9 O( Q/ W/ m[9] INSERT INSERT function.
& N0 t* K/ X3 x9 c3 o1 }5 C: x4 d First key pressure: INSERT POST VALVE, the Insert Send is tapped after& `/ \: G* E* a6 L% S
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
$ A) c. h5 ^8 I; A and AES/EBU outputs.& Z/ A. ?- t# K) U9 h: H
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before7 g6 _' o% k; A# L- Q
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
$ _" h6 g5 F: J: x$ Q5 N7 c the valve dignifier stage to the Line and AES/EBU outputs.6 S! C" r1 n9 G# K" u
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier. m, ]5 }- Q, u1 y
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
$ X# V) t6 ?* |8 o receives this signal; display: none).
: r. D" ~1 h7 G Insert Send and Insert Return are electronically balanced and equipped with8 m. r6 k& c6 E x X# l1 p
XLR connectors.
0 V. z3 n& m- S% R5 y[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
: r0 G" C+ l# n0 {+ w ADAT digital interfaces. Each input channel can be switched to one of the7 D% h- u7 i/ }8 g' F
channels 1...8 of the multichannel interface. If desired, also a mono mix is9 x7 i, Q! e$ y/ s) I
possible by selecting the same output channel for both input channels. \9 {" X4 c( P. N
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone8 j2 G. ]" Y; n7 Q) G/ I* r
channel.
- _+ c+ Q$ i$ Y: ^' s z. } Can be operated only if the input gain selector is in Mic position. The4 e; j1 G9 F/ _) t
setting remains stored when switching over to a line gain setting.3 d- I% q) U0 r$ R
[12] Activates the high pass filter on the microphone inputs of the desired channel.
$ D* L5 X* D. l$ o0 r) C0 x$ e Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave. O0 [8 h. v# j" O
Can be operated only if the input gain selector is in Mic position. The0 s2 s- M) U' }) [
setting remains stored when switching over to a line gain setting., X/ Z3 l& ~& O; a$ h
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
: t9 W1 |' C( t, a. }9 H, l[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:# R9 d2 L+ E8 e9 q9 B2 b
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with9 z8 G2 b$ m5 z2 ~* Y
Noise Shaping (display: “16NS”) can be selected.
% Z5 L# U0 _6 E3 ~8 S5 z[15] SYNC Selects the synchronization source for the unit. Possible selections are:
7 ~) R& m' _1 Y; f3 X2 H8 i# ?6 ] INT 48 Internal quartz reference, 48 kHz5 n2 _" A5 S! n! T, N: |4 w
INT 44 Internal quartz reference, 44.1 kHz) f7 G! Y2 q; F( @; P
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
( M/ k/ N g. ~5 c& x+ d2 @9 x+ D AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)8 F/ A# v+ p/ Z$ u
AUTO Selects sources automatically in the sequence AES-WCLK-INT
5 N4 l7 J: e4 z) s VAR Indication only, active if the external source frequency deviates from 48 or1 H& A7 o# a( A4 D' W
44.1 kHz for more than approx. ±3 %.$ j. A, h8 v( E# Z
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –9 u( Z% {, u) A: J' P% r) K
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
8 n0 y4 j, ^+ _( l0 p[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
% c! C& t4 a9 J the danger of overloading the A/D converter with short signal peaks (if* |5 B: _7 Y# V! _) R
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,0 [* Y; s; E( ?* Z
allowing for approx. 6 dB reserve before hard clipping occurs
0 W/ J* J# x3 \2 \: ^1 K+ J2 l4 n, v - x ?- c8 V/ H" _) {
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