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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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9 m( z$ }' Y9 W% b( M& m- [英文电子说明书
+ R- C( L0 r; X- |. M[1] POWER Switches the unit on or off. The unit is ready to operate with the factory: q9 d) v; @7 t8 W# o+ B8 L) w" H1 c
default settings. The subsequent settings remain stored in a Flash EPROM; {% C7 M9 R3 |1 {
after switching the unit off (unit contains no battery).) ^; c2 P7 c+ z5 \1 v/ y8 H. r
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position: O& p7 Z4 I8 J6 f' J2 f h7 ^
between microphone and line sensitivity setting ranges.
; v/ D: q4 `! t* |3 x9 M) V Mic: Range –40...+20 dBu" r$ J: d7 L$ S/ h
Line: Range +14 dBu, +24 dBu
6 h* P$ |! G3 y9 x1 j+ x: [: X[3] Fine Gain Potentiometer for fine input sensitivity setting., L& q$ D) p( M4 X7 m
Range of additional gain: 0...+15 dB.1 J6 W/ A" c9 z6 ]3 \
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
3 X4 N6 Y8 h" u% |1 `0 o the dBu value of an analog input signal which causes a full-scale output of- d' Z3 _ g; u
the A/D converter.
, O2 h; V6 S6 O! O* G, a Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
# P8 J- r' ?( Q. n the peak level is therefore +16 dBu. The “Input dBu FS” rotary
/ ^1 v! _5 q7 J9 V) R% q switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine/ j8 f8 u: X1 j. l9 d
Gain” potentiometer [3] increases the gain by 8 dB.
- P% s0 U6 `( q# `& {$ I, k! N[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.! X9 f$ x9 R5 j
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
) `2 _) l- u! Q' C7 D- O. R have more body; percussive instruments are less aggressive.( ~; k3 {' P8 K+ j2 s9 M1 N
The group delay behaviour due to AC coupling of the stages is different in
! A) }+ P9 c7 U3 \+ T tube amplifiers.
( z# [- k5 T! G' q' v3 B$ F1 n The “Bass Warmth” control allows to select the frequency range+ y+ N% Y/ N. Q) {' |2 `) i
(10...200 Hz) within which the effect is active.
) Z! D; Q& Y9 l) h1 Y6 |8 R[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.0 J* B j8 ~! {3 v7 X
Valve amps have a characteristic response, mid-frequency harmonic content
* M& \5 W6 H- ^9 [" t: } is emphasized.9 c: {! W: g' V+ p- J5 C0 j
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.9 y& E; i. h* I$ C6 I: c H* z
The harmonics spectrum of a delicately overloaded valve amplifier is completely
, Q( o0 D9 n( I3 J" c8 U% {% a different from an overloaded transistor stage.# O9 B: f2 G0 i8 p, H6 D: s: ]4 U
The “Gain” control adjusts a gentle overload while the odd-harmonics content8 t2 V4 e/ a# m. l6 g Y( I$ b; K
can be adjusted with the “Clip” control.
7 k& M8 H- |2 Q9 a2 o[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24" Z: I1 Q! v" \+ d3 D$ J3 y# r' u
dBu FS.
! {: C/ t. |! Y9 M+ ^0 d8 H[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
! L8 Y2 \2 f( z. A% H desired channel.
$ t! Y# _9 o& [' T The “VALVE” LED is on when the Valve Dignifier stage is active.
% I' q& p; y) n' z% c[9] INSERT INSERT function.
& ~. X \, c1 e2 z$ y: ]* x First key pressure: INSERT POST VALVE, the Insert Send is tapped after
& b+ }% R* {* K Y( m. n2 R the valve stage (display: “INS”); the Insert Return is directly fed to the Line' Z- J: Q+ X# x, ^' {
and AES/EBU outputs.
) [2 \: W7 N, u! d: Q( f% ?+ O Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before2 }- e* { d$ H7 S/ B
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
- R4 O% L/ [3 \ the valve dignifier stage to the Line and AES/EBU outputs.0 o+ H/ @9 p. ^6 b+ O, M: T( s
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
: f0 [9 b' x! ?+ W6 ~ stage (if active) to the Line and AES/EBU outputs (also the Insert Send output% t+ _- C' o& |1 E3 x' i) X3 H' L/ K
receives this signal; display: none)./ J" X" ]' M' M; J% e; s
Insert Send and Insert Return are electronically balanced and equipped with
$ h0 E+ S: H9 V+ S7 |; @3 P XLR connectors.# ^ N, S: p( r& ^: Q% }3 z
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or9 ^( u5 M; z& [2 p$ S% p
ADAT digital interfaces. Each input channel can be switched to one of the
, u# f3 e8 D) g1 M ~ channels 1...8 of the multichannel interface. If desired, also a mono mix is7 W: y/ l1 ~, t7 d
possible by selecting the same output channel for both input channels.8 L$ d) j# o+ l) T. A/ q! v, n; j8 G
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
0 _5 C/ Y- h; Y( L, R channel./ q0 F+ S3 a$ q' V- U3 b
Can be operated only if the input gain selector is in Mic position. The
/ X6 S: P- u, a7 s! I: g' S setting remains stored when switching over to a line gain setting.
' C; y- |% A9 @" |[12] Activates the high pass filter on the microphone inputs of the desired channel.
) U3 y1 X7 _" n, [: G: n$ S Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.. @- L* _# K: I: \! u
Can be operated only if the input gain selector is in Mic position. The8 [8 C, S1 Y! q+ S/ g- N- Q s
setting remains stored when switching over to a line gain setting.
; W5 c4 {( a7 B9 @0 Y: r: Y[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
4 L& R l3 z2 N0 c' L* e1 z$ ?[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
/ F7 ~: z& w$ j( Z/ T M1 ~ “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
6 i3 b# v1 L/ p9 m+ k1 g F Noise Shaping (display: “16NS”) can be selected.
" r3 `4 v9 r7 ]6 ]5 ` }[15] SYNC Selects the synchronization source for the unit. Possible selections are:
0 y- V' z3 _6 x, m; Q _ INT 48 Internal quartz reference, 48 kHz' P7 w# G2 h2 y
INT 44 Internal quartz reference, 44.1 kHz
4 P6 I3 `& o' s; F) M WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized), s* T+ d$ s0 |0 _3 q" A
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
/ D% V ~ `5 W9 f+ l0 ~# } AUTO Selects sources automatically in the sequence AES-WCLK-INT
, u' r) J9 j3 I6 A- O+ ]; e; o" ?( a VAR Indication only, active if the external source frequency deviates from 48 or
& \8 s/ Z0 w6 ` \0 {, X0 z4 p 44.1 kHz for more than approx. ±3 %.
9 M, S) x9 Q {5 w[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
8 M$ E' I! Q3 K8 k either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.9 Y/ y% o6 u8 Z4 i# J: J
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce% I+ e( _3 a; Z" N) L
the danger of overloading the A/D converter with short signal peaks (if
# G/ b7 g& u* k0 @2 _) u active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,+ ?( l6 v1 k1 y4 {: j: M
allowing for approx. 6 dB reserve before hard clipping occurs
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