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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
1 ]& N: U) Z" [. D[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
0 h) M7 y t/ u3 K% v default settings. The subsequent settings remain stored in a Flash EPROM @* R0 I- J8 q) S1 s; \( O
after switching the unit off (unit contains no battery).' R: p0 M& i" _# C
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
: p1 W6 [+ U& m- d between microphone and line sensitivity setting ranges.
; Z6 Z; f) v- R Mic: Range –40...+20 dBu" ]; z5 B1 B! d2 F$ B! {
Line: Range +14 dBu, +24 dBu
% i4 h, y* F9 C( A; v[3] Fine Gain Potentiometer for fine input sensitivity setting. t* Y6 {6 A5 R
Range of additional gain: 0...+15 dB.) K* X0 |6 _8 H- A1 `9 j0 U
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents5 U e/ v, d c$ s4 E
the dBu value of an analog input signal which causes a full-scale output of
. y$ [4 G) m; ?% s ], d- p" k the A/D converter.0 m' F: ?: ]. J) j8 y i% a) H
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;2 O% d' z& K' r9 w4 A2 k3 o/ q; \
the peak level is therefore +16 dBu. The “Input dBu FS” rotary% l; [: g2 ]' Q3 _; |* G$ A/ q
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine8 M/ \; V+ n0 J: j0 c7 L3 S9 q
Gain” potentiometer [3] increases the gain by 8 dB.
) G: H+ { a! b0 h& h$ k6 B) T[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.$ I8 N4 V" Q4 a2 _0 _
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals. `4 P0 j i; X) Z* h) `, o
have more body; percussive instruments are less aggressive.
5 ]) J' q# t, c- m3 g* U The group delay behaviour due to AC coupling of the stages is different in! ]9 s1 w- [! M0 X* V7 `- c2 @
tube amplifiers.
! g- K7 W3 Y3 m# F The “Bass Warmth” control allows to select the frequency range+ D9 Z9 b$ u* z2 v$ I: b' J; f
(10...200 Hz) within which the effect is active.5 p1 a) f/ a# `6 a `) R6 x: f
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.( {; L' P, Z/ a+ z# _* _
Valve amps have a characteristic response, mid-frequency harmonic content* A# G2 H k- @8 w, b% y
is emphasized.
5 s' Z* u0 n9 ^! h' @[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.: s8 R k. L) F* K9 u5 k# B/ e, O
The harmonics spectrum of a delicately overloaded valve amplifier is completely
m& z) w# ^4 s3 g: F2 C different from an overloaded transistor stage.& i' K8 B3 B/ [* e- @
The “Gain” control adjusts a gentle overload while the odd-harmonics content* i9 S6 S* q4 v% I5 c2 ~1 M2 e
can be adjusted with the “Clip” control.
3 Z S$ p- H- A- a( V) k[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...248 s/ B" d1 y6 K: D# B @, B5 ^5 Z
dBu FS.
: Q$ q# U) `+ ^7 e! V, p[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
9 [( } A8 P, k! B# A' w desired channel.
' ]; F* b0 @4 U' C The “VALVE” LED is on when the Valve Dignifier stage is active.
' X$ `. G' D4 s# b3 a7 s[9] INSERT INSERT function.
, i9 ~, N9 l2 c: G7 E) Q$ C, P/ t' M First key pressure: INSERT POST VALVE, the Insert Send is tapped after
# E1 M# ?2 {# p! ` the valve stage (display: “INS”); the Insert Return is directly fed to the Line
: Y- r- f: a1 w: o0 x7 r% o and AES/EBU outputs.( W! S) g% p! n1 e5 a9 r |. V, n
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
8 E/ A, y1 R& W7 a* A the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
8 z( [" d8 k* V6 x8 b$ N5 I( O6 ? the valve dignifier stage to the Line and AES/EBU outputs.
, `' t: X9 Q, a% B: T1 n Third pressure: INSERT OFF, the input signal is fed via the valve dignifier$ c# M3 ]5 }3 t4 c( @4 @
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output3 n( u/ q$ g Q& v
receives this signal; display: none).
) @% b- ~) h# }8 H5 I Insert Send and Insert Return are electronically balanced and equipped with k- Z% s+ x+ G
XLR connectors.
p+ R$ N: }5 ~9 Y) u: r/ Q[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
0 O$ f+ W6 B$ q ADAT digital interfaces. Each input channel can be switched to one of the
6 k W/ O6 K8 o5 C, d$ q9 C channels 1...8 of the multichannel interface. If desired, also a mono mix is: |: e' h _# c
possible by selecting the same output channel for both input channels.
7 I! K/ ?- u% o L1 z[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone0 ^0 Z) k" A a Q
channel.
- Q( y, K, N( A* a3 n' p# u: G1 J Can be operated only if the input gain selector is in Mic position. The% y! L, l4 b$ R8 o$ Y
setting remains stored when switching over to a line gain setting.: d6 S$ O" j8 @1 Q7 r3 R
[12] Activates the high pass filter on the microphone inputs of the desired channel.- e: s6 P1 n5 ^! l
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.8 c) d+ Z0 ~( y4 Y
Can be operated only if the input gain selector is in Mic position. The! X* @& A; Z/ C9 C3 |8 E
setting remains stored when switching over to a line gain setting.
z4 N& N: C B+ H; m[13] Ø Toggle key to activate the phase reverse switch of the desired channel.; F- F# l* h) r& m- ~/ r A- X
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display: [. p& o7 i3 f
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
' _4 ?( V2 M3 u# d% J9 B0 f Noise Shaping (display: “16NS”) can be selected.- T) f5 }2 L- Q R, q7 {
[15] SYNC Selects the synchronization source for the unit. Possible selections are:' k9 t! z" Y3 q# S7 m
INT 48 Internal quartz reference, 48 kHz
3 f. D+ a9 P7 u( T: \, [( t: }( E INT 44 Internal quartz reference, 44.1 kHz
- N: V- d a6 p4 k& r: ?' t WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)8 X; l3 E3 a: P9 m5 b4 P8 _
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
& v3 e7 V% W, Y* s$ m& M0 i AUTO Selects sources automatically in the sequence AES-WCLK-INT
. ?( X9 ~% W5 \+ a# j' S8 @ VAR Indication only, active if the external source frequency deviates from 48 or5 O9 q, W8 o3 Q4 B- { d6 Y( H
44.1 kHz for more than approx. ±3 %.
7 P/ C) [, p- |" t8 Q[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –/ o4 v% Y) r- A; K- r9 O7 c, [
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.- Q9 L+ _# i8 Q+ s$ F; r8 U
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
4 s) f% L& \2 n& q; C the danger of overloading the A/D converter with short signal peaks (if
3 c3 r* y- V, M% o+ N4 f7 l- e active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
D# @5 }/ ~$ f# f( ^1 U% g! a1 B( V. V allowing for approx. 6 dB reserve before hard clipping occurs% T$ M1 a0 h& J7 M2 |
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