|
|

楼主 |
发表于 2012-5-21 23:23:18
|
显示全部楼层
本帖最后由 dan3963101 于 2012-5-20 00:12 编辑
( @ i' F( G: _9 D ?7 ^4 s7 [9 G# ^4 A' |- g$ u! I$ j4 ]5 W* z- ]% K
) U( H1 q3 U b# m, Y) O V英文电子说明书( g9 Y7 r9 E6 j5 j
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory6 l2 U7 B ] [) ]2 M9 n: i: p* j8 I9 a
default settings. The subsequent settings remain stored in a Flash EPROM: m) m, @% a( T$ I N+ L# V. l+ ~
after switching the unit off (unit contains no battery).( ~$ z6 i; O3 P3 M8 J
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position' R, L8 y, v) P1 X5 ?
between microphone and line sensitivity setting ranges.
# d9 p0 V3 B; ~! Q' A( H Mic: Range –40...+20 dBu
7 F& {6 V# \7 r# `' Z; @# X+ W, X& k Line: Range +14 dBu, +24 dBu0 h5 g! E- y6 E
[3] Fine Gain Potentiometer for fine input sensitivity setting.
- ?! C' [5 r+ _" \( W' q* f! | Range of additional gain: 0...+15 dB.; c% h: o2 {6 w
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
# J) ?9 y( [! u. G" t1 e the dBu value of an analog input signal which causes a full-scale output of
) w* u% h/ y0 C- Q3 L& n3 I the A/D converter.
5 X( @8 K5 G4 f Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
4 X; k* _+ {" o1 u5 ~ the peak level is therefore +16 dBu. The “Input dBu FS” rotary2 g' A! `+ [! F) {
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
' |1 W- P0 g3 N* r' m4 X Gain” potentiometer [3] increases the gain by 8 dB., n2 P/ M# ]0 b7 o) s
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.6 d% l L2 h& k
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
7 q8 t) b) z5 c$ v1 L; ?9 K have more body; percussive instruments are less aggressive.
9 {2 @! p+ a9 a2 K/ M' D The group delay behaviour due to AC coupling of the stages is different in
$ {% A9 Y4 M1 i- n$ s tube amplifiers.
+ U9 N6 N; Z5 o& X+ b The “Bass Warmth” control allows to select the frequency range4 _3 K5 U$ }: y! ~6 Z) }+ I' S% G
(10...200 Hz) within which the effect is active.
# `& t5 j, X& N. O6 I5 V4 P% ^4 C[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
! a) M$ w! k& v% ` Valve amps have a characteristic response, mid-frequency harmonic content
/ X7 A( Z( W& t1 c8 @ `, q is emphasized.
6 O3 p' m" M" F5 S% E0 b" w% P[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.6 h9 f3 t* x( p/ n; C9 [
The harmonics spectrum of a delicately overloaded valve amplifier is completely, G' B) G. E' u% N& p4 R
different from an overloaded transistor stage., |, I3 f" [$ u# P% i
The “Gain” control adjusts a gentle overload while the odd-harmonics content2 U/ O1 Q( f5 D1 V
can be adjusted with the “Clip” control.
5 s; E* _' c# @, s& f8 e# F6 l/ i[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24! F# r' l' A4 B& a# D
dBu FS./ X K Y H. \/ S
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
/ b/ e" f* |1 |9 a+ g$ I/ r6 b desired channel.
$ e: J3 K( f- z* q3 R/ r* d5 _ The “VALVE” LED is on when the Valve Dignifier stage is active.
2 ?1 g! q* V5 B# ]' N4 ^[9] INSERT INSERT function.
5 i' p3 J! W* R First key pressure: INSERT POST VALVE, the Insert Send is tapped after
4 `/ r! x1 ]( D$ { the valve stage (display: “INS”); the Insert Return is directly fed to the Line
& f1 @, _1 X% [& r8 s and AES/EBU outputs.) u J" \* C% c1 Z3 `
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before! Y$ a: a8 O$ j
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
7 {; P; m, P! h) R# P the valve dignifier stage to the Line and AES/EBU outputs.
; |; a0 Z( x3 n- l0 i3 Q: D9 P Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
4 k. V& H3 w9 m# ` stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
# j2 h/ P$ P. X, ?8 J6 Z( } receives this signal; display: none).6 E9 j' O" b1 a
Insert Send and Insert Return are electronically balanced and equipped with4 u' v! F7 ]" ~9 Q+ T
XLR connectors.! K S5 }% K! o, x w
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or* o, ]6 @6 X$ F0 w- a4 N' E
ADAT digital interfaces. Each input channel can be switched to one of the1 m1 a1 w7 v# |, D" i7 b
channels 1...8 of the multichannel interface. If desired, also a mono mix is7 r) V$ L& s+ ^( ]% m$ ]- R
possible by selecting the same output channel for both input channels.
9 {$ H) K1 i7 L+ v3 A" U[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
" a, O2 i7 \; {- N# U- k channel.
0 M; w4 N! ^" ~# q, r6 t Can be operated only if the input gain selector is in Mic position. The9 `" q( W/ n; u0 {& A9 F
setting remains stored when switching over to a line gain setting.
0 K2 k% p3 W c* H: _% A[12] Activates the high pass filter on the microphone inputs of the desired channel." u n5 ~* y$ ?- a; a% }+ K* N
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
1 W2 S8 |& T- @, [( W) z4 ` Can be operated only if the input gain selector is in Mic position. The
3 P0 S2 @7 R0 M4 M* W setting remains stored when switching over to a line gain setting.; C- W8 O$ W$ i8 j! ?
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
7 M, u& |7 ~3 f! t6 w5 G[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:6 H# Q4 D+ b, I( g
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with8 `' N5 x! i J, \* P0 T
Noise Shaping (display: “16NS”) can be selected.
- \( |/ N, O# d9 [2 N[15] SYNC Selects the synchronization source for the unit. Possible selections are:
- `9 M, P# D6 { INT 48 Internal quartz reference, 48 kHz
: B( Y7 ?! @) h& n9 m INT 44 Internal quartz reference, 44.1 kHz% _$ g+ ? l1 }7 A
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
2 f" N+ Q0 d2 a! Z AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)+ Q5 [- Q7 {* a- q
AUTO Selects sources automatically in the sequence AES-WCLK-INT: |, V" X( D# Y
VAR Indication only, active if the external source frequency deviates from 48 or, N: R1 h4 u' m; z
44.1 kHz for more than approx. ±3 %.+ f6 B; [( }; ?
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
8 S/ T' q3 q5 g/ m$ _9 |, o! h either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
$ J2 Q+ {- [& @8 c1 p[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
3 k/ e2 @1 f- z# e# t the danger of overloading the A/D converter with short signal peaks (if
9 }1 W7 o' t% u* d* { active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
: y& C1 s7 @. C allowing for approx. 6 dB reserve before hard clipping occurs3 N; R7 \) m3 k, e- }" Q
; N" l/ _# u |1 i7 k 3 O8 ?. r6 e8 O4 T. p
|
|