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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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英文电子说明书" K& h. g! G- c) m9 X8 h
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory' E) X$ q3 i% o, n
default settings. The subsequent settings remain stored in a Flash EPROM
+ \- a% c: E- C7 h after switching the unit off (unit contains no battery).& f3 j' r* C: E; j& Z& N
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position; B! a: z0 `, p9 ]
between microphone and line sensitivity setting ranges.
% T- d5 }1 |0 [8 r: T! S* C Mic: Range –40...+20 dBu4 ?3 ]5 O u# S7 g- F. I
Line: Range +14 dBu, +24 dBu
& g4 |' R( G0 M6 A+ g8 `[3] Fine Gain Potentiometer for fine input sensitivity setting.
7 T. X$ f1 l% f* ?$ J6 l# q Range of additional gain: 0...+15 dB.1 o1 _$ t" D( X
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
4 {2 {/ J. c* e) E5 R E the dBu value of an analog input signal which causes a full-scale output of N: @# J+ Q4 o1 z
the A/D converter.2 M7 K$ o5 ` w% m. I
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;/ X8 |* L4 c2 Y5 n
the peak level is therefore +16 dBu. The “Input dBu FS” rotary3 W% P4 ~' p, |
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine, a. K; d/ u) M/ Z( S. f, ?3 M0 {
Gain” potentiometer [3] increases the gain by 8 dB.
$ ]5 p! W4 e& F( p( A& _ f5 w[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
, h' e1 p2 b8 c1 K1 i[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
* ]% j, e7 `2 D have more body; percussive instruments are less aggressive.
3 a: q! p w% W4 y4 I# z The group delay behaviour due to AC coupling of the stages is different in) `& ^1 |9 N" H8 B6 ]8 N/ r
tube amplifiers.
/ V+ j/ a- ~8 ?; F9 U0 ^( R The “Bass Warmth” control allows to select the frequency range
2 n, g; Q) L: o1 b" ?& M (10...200 Hz) within which the effect is active.! @! ?" c, k6 u" M
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
$ L1 U4 [- K+ s1 F! Q: q Valve amps have a characteristic response, mid-frequency harmonic content V. Q" b. \# {$ H
is emphasized.$ c0 q+ O, `* ? ^0 o, R
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer. \8 O6 n1 c) S" s2 c7 f/ |
The harmonics spectrum of a delicately overloaded valve amplifier is completely2 Q3 F' `" u! j
different from an overloaded transistor stage.; b1 P5 G% `& m" c3 [# {! o
The “Gain” control adjusts a gentle overload while the odd-harmonics content
: N+ I% r# A0 b0 E( u' I can be adjusted with the “Clip” control.; Q* B' w& H: C0 I7 X( N
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...248 B# i: i7 m$ G' ~
dBu FS.) M/ i2 B% b, `, k8 `
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
" b$ c- C: l1 U, f( ?5 G desired channel.
/ j/ ?2 {3 [0 }) B6 P3 N& e5 n The “VALVE” LED is on when the Valve Dignifier stage is active.
2 O, l1 T# N4 V: J8 p B) P! e* X6 R[9] INSERT INSERT function.8 w X7 ?/ B" D* E
First key pressure: INSERT POST VALVE, the Insert Send is tapped after9 V% z' p1 c7 |8 [' [
the valve stage (display: “INS”); the Insert Return is directly fed to the Line) p3 i7 F& X$ s4 M
and AES/EBU outputs.
% h0 W# a) }8 Q Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before9 Q6 `2 V! E. u, C% {2 L
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
! D# b W& t9 R9 Q% } the valve dignifier stage to the Line and AES/EBU outputs.3 K% Y+ W& E* ~4 a
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
0 e, z% t# L# Z5 F+ {4 a stage (if active) to the Line and AES/EBU outputs (also the Insert Send output, i1 g! m! C/ F# u
receives this signal; display: none).
7 W9 B! V k i$ U Insert Send and Insert Return are electronically balanced and equipped with9 w0 Z( Y# A/ I& l/ j8 c4 O; l
XLR connectors., y2 B; n7 Z4 n' E& I$ k
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or8 S, t4 ^' k' l! s8 q! W" e9 f, m4 Z8 x' y
ADAT digital interfaces. Each input channel can be switched to one of the3 l/ h; n9 l& L1 m S% E
channels 1...8 of the multichannel interface. If desired, also a mono mix is" ?- I0 Z0 B) H' e3 ^
possible by selecting the same output channel for both input channels. @% N; I2 [. }( q, M
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone' I! ? z) C4 U
channel.
/ a$ K$ s: T" N8 c Can be operated only if the input gain selector is in Mic position. The
1 u1 S6 B: }( K/ \& p% I9 G: J setting remains stored when switching over to a line gain setting.( w; h8 I8 Q% g( E8 e) D8 o
[12] Activates the high pass filter on the microphone inputs of the desired channel.1 }2 K6 s; i( z& g
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave., @1 _, r* o3 g
Can be operated only if the input gain selector is in Mic position. The
0 V* {; A+ P" H2 f" O setting remains stored when switching over to a line gain setting.! t& O1 M j. v1 L0 s' p ^5 E$ t
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.) f5 O& |: f% e9 F9 n
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
4 H& ] x) F# |' w. r$ L “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
& H/ A& [# e9 b7 ` b/ ]7 W9 A' Q Noise Shaping (display: “16NS”) can be selected.
- e, p0 q% Q. t[15] SYNC Selects the synchronization source for the unit. Possible selections are:
6 t! K, M, N! `3 k; t INT 48 Internal quartz reference, 48 kHz$ a4 o) ]/ ~' c, I! u6 R% _
INT 44 Internal quartz reference, 44.1 kHz
+ F4 k' i1 B3 |6 X6 X9 y; `, x WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
* f- h( a: M) ^/ t- |+ p0 { AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
, q. q/ G1 N+ B3 } AUTO Selects sources automatically in the sequence AES-WCLK-INT
# Q- g/ A+ C: C+ Y) ] VAR Indication only, active if the external source frequency deviates from 48 or
c) w2 W% R2 {% f O6 s5 C; p7 m5 n 44.1 kHz for more than approx. ±3 %.
! ^, y: G+ u( e[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
* e! p4 o ]+ n# E2 ^& Z8 M7 d either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
3 M0 P+ i* J" V! m$ e9 @; k$ G[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
# ?+ f7 h1 q, r. C$ L the danger of overloading the A/D converter with short signal peaks (if
: a. H2 E( B3 S& O active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,( {6 N. H5 @& |7 \! F
allowing for approx. 6 dB reserve before hard clipping occurs
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