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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 6 M+ L/ ]3 v3 Y# y! C
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英文电子说明书
' z+ `1 C/ Q5 }4 I ?[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
& N3 Z4 Y: L$ b& o; n4 a2 A+ \; d default settings. The subsequent settings remain stored in a Flash EPROM
6 I2 i+ X3 C7 u) E/ l+ r/ m after switching the unit off (unit contains no battery).
5 g7 r B, { e `: @, y: }, q[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
7 C" H Y& x# z& M! J3 @# D between microphone and line sensitivity setting ranges.+ A" ^' \. m! G' J1 k- ?, ^6 }
Mic: Range –40...+20 dBu$ |5 v! B6 |! P
Line: Range +14 dBu, +24 dBu
" q5 Q/ M+ M' b# n[3] Fine Gain Potentiometer for fine input sensitivity setting.+ [7 m# h& \0 G, D# Z: O0 D
Range of additional gain: 0...+15 dB.
8 `$ @6 V0 F8 l) f- n Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents1 D$ w0 u2 v7 a% g: S' F4 n3 r5 \8 x
the dBu value of an analog input signal which causes a full-scale output of9 i* c0 @4 k$ M* @5 P
the A/D converter.
5 C3 `* e! o1 l- P6 x Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;3 i4 l% x) A7 L2 j4 c/ t4 S" Q6 j
the peak level is therefore +16 dBu. The “Input dBu FS” rotary1 U& D; G7 g& N. O. p1 |, w
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
~# A- D) p1 P1 @& g4 I+ B3 P" ^ Gain” potentiometer [3] increases the gain by 8 dB.
K( }, S% Q1 W% Q9 D3 l6 z[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
, T, N9 W! |( I5 Q5 N* l0 D[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
! c" T: o2 m/ n4 E have more body; percussive instruments are less aggressive.0 o# |8 j5 \% x5 H% J, u
The group delay behaviour due to AC coupling of the stages is different in, N2 V, P) t7 t/ ^5 d X1 n7 Y
tube amplifiers.
6 {. i4 Y$ z8 ~- Q, j d/ v5 y W. h7 g The “Bass Warmth” control allows to select the frequency range5 U# I0 \# Q% }$ _# Y l
(10...200 Hz) within which the effect is active.' _" ?7 }% ]- E2 S8 q" ]: ~
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.$ Q. u8 Q2 |* I1 ?
Valve amps have a characteristic response, mid-frequency harmonic content* L* {( K- ~$ S+ E6 s2 H8 Y2 I
is emphasized.
$ @. l4 o1 p0 u2 s! u[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.% m' {3 n+ O6 y% V( ?
The harmonics spectrum of a delicately overloaded valve amplifier is completely( [# T; l' i7 r+ O2 {
different from an overloaded transistor stage.
+ k5 u7 N# N9 P3 w The “Gain” control adjusts a gentle overload while the odd-harmonics content
" f0 j- I+ y6 ]: ?& |! x6 r can be adjusted with the “Clip” control.! o$ b6 H7 R4 c0 Q9 b$ f
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
3 o' V! K" Q0 p* P( X dBu FS.
7 Q0 r5 c6 d& B& F/ o$ L[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the9 h/ G1 d* p e( N* D9 K
desired channel.
% o8 u( _. y3 E9 P2 G The “VALVE” LED is on when the Valve Dignifier stage is active. N% @3 b( j6 M/ P* S D
[9] INSERT INSERT function.+ I$ x0 V G$ L! R* n
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
6 h- [2 X2 b. k6 P$ | the valve stage (display: “INS”); the Insert Return is directly fed to the Line
. T8 A. m) c2 J% X! i# e9 a' m0 p and AES/EBU outputs.
1 x, v2 V2 }: ~: o) O2 r1 K Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before' b( h8 c' ~- P. p7 s& v/ T% L7 y
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via4 i% i2 d3 ] E" `0 k! s
the valve dignifier stage to the Line and AES/EBU outputs.
7 d$ k4 s$ D7 c: @- k* d c1 ~ Third pressure: INSERT OFF, the input signal is fed via the valve dignifier. V# R* S* i" Q/ Y, X
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output& f! P. X! n, N' @) p: ~* R
receives this signal; display: none).
- a# U/ _# n) ]+ W5 ^+ ]% f Insert Send and Insert Return are electronically balanced and equipped with! z1 k' W+ N6 f1 T; A2 y( q. h
XLR connectors.
! }( V: U/ X& C# A; \[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
* ]6 d' D0 n" J3 g8 J ADAT digital interfaces. Each input channel can be switched to one of the# _- N* ~( d* i8 U7 K8 o, K5 c
channels 1...8 of the multichannel interface. If desired, also a mono mix is5 ]8 Z2 H4 H2 B3 r7 l) m
possible by selecting the same output channel for both input channels.# ^3 Q- j& a9 c
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone* a1 [- r& j/ [
channel.
9 l# K/ b; n6 r( @5 b Can be operated only if the input gain selector is in Mic position. The1 G( Z7 ~7 i+ Q; q# c, h4 c; u6 g: _
setting remains stored when switching over to a line gain setting.
" d8 a* _* d6 Q7 y" e[12] Activates the high pass filter on the microphone inputs of the desired channel.
4 J6 a& Z m, J* c. a( Y Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.4 v, ` q0 G. _+ D' ]) B$ I
Can be operated only if the input gain selector is in Mic position. The9 L" t. Y' P9 T4 n' H
setting remains stored when switching over to a line gain setting.
, `. D; D6 b6 R[13] Ø Toggle key to activate the phase reverse switch of the desired channel.5 B1 O/ a! n9 t
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:+ _1 O2 G- U6 N
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
9 X* q; o9 o- C& |4 H Noise Shaping (display: “16NS”) can be selected.+ ]% V# A, Q* l+ i5 |
[15] SYNC Selects the synchronization source for the unit. Possible selections are:& R( f9 P3 \% L7 x, `, A+ r( a
INT 48 Internal quartz reference, 48 kHz5 t) U& [! n1 Y& Y) ?6 Q
INT 44 Internal quartz reference, 44.1 kHz2 C) _) q; K* s J
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)( `8 _& V9 |9 O; R! w: F6 d$ o
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)5 F2 O2 O$ R4 {9 n5 ^
AUTO Selects sources automatically in the sequence AES-WCLK-INT5 Q+ H4 ^# d N% z2 i+ ~% c
VAR Indication only, active if the external source frequency deviates from 48 or% Q# p5 _4 g' U
44.1 kHz for more than approx. ±3 %.
% Z" c9 Q, z5 ~[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
$ V% v0 G" ~$ h. }& L* \% \" f either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
$ ?# z8 A! z% f[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
) S, o+ o$ @: f! v the danger of overloading the A/D converter with short signal peaks (if
4 p! m" d* K8 R1 s active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,8 v! I8 f0 c4 ~1 n9 D! Q5 R
allowing for approx. 6 dB reserve before hard clipping occurs) b7 B; V% Y/ w
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