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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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5 E. d& N; m( W" C英文电子说明书
, M: S2 s4 t! w$ `- B[1] POWER Switches the unit on or off. The unit is ready to operate with the factory9 a& Z* l- j. [+ F) D# O
default settings. The subsequent settings remain stored in a Flash EPROM
: X/ H0 J& [2 s9 j4 I& W l2 z after switching the unit off (unit contains no battery).1 Y/ Z- u, ?' E) C' i
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position9 N+ o7 S- r& M2 T
between microphone and line sensitivity setting ranges.
. M4 m) W1 ] u; W f7 H+ _9 F Mic: Range –40...+20 dBu/ P" {' L. g. b3 k, [+ S
Line: Range +14 dBu, +24 dBu
" |( |( _$ Y. C0 q[3] Fine Gain Potentiometer for fine input sensitivity setting.2 S: L- X+ B0 ~$ R2 x1 @# G. `
Range of additional gain: 0...+15 dB. b9 o$ u) S! K) ?
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
6 O. P6 z7 L5 L8 X* z the dBu value of an analog input signal which causes a full-scale output of- L8 k1 e$ v& k) Q- Y
the A/D converter.$ e% H4 K) |) w) H9 f" J
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;& H$ e' _: ~# M; `
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
" F7 M: p0 d6 N$ w; R7 Q/ C- D. u switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine( U+ @5 Y& {# k7 P3 U* X
Gain” potentiometer [3] increases the gain by 8 dB.! W1 d5 P/ l: u/ `# `/ ]) N+ A
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
- L# N! i2 y7 n! k# ?+ k[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
2 y B( Z ^' p) A z have more body; percussive instruments are less aggressive.% i2 A% b2 O2 D% Q, I6 J0 `
The group delay behaviour due to AC coupling of the stages is different in& ?7 b) ] T! w, I- j$ n
tube amplifiers.# z: |! ~+ o" b, Y& k# @* G
The “Bass Warmth” control allows to select the frequency range8 o4 }4 o1 D v j! E% w% A
(10...200 Hz) within which the effect is active.
7 q! ~: _' r2 V[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
3 c6 V7 k! n0 s1 x Valve amps have a characteristic response, mid-frequency harmonic content5 m, f0 e3 b, k2 O) B
is emphasized.' ~4 V. N2 O8 W% I
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
/ X. n, N+ q2 N/ ]8 z X The harmonics spectrum of a delicately overloaded valve amplifier is completely
8 E- t! \5 f8 u0 e1 x0 j different from an overloaded transistor stage.) w! I6 i* k. e
The “Gain” control adjusts a gentle overload while the odd-harmonics content- v8 Z, C3 f/ _! {/ I! {+ B
can be adjusted with the “Clip” control." {9 E* F. z/ r. K1 V5 j5 f
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
" F+ X! s n% _3 ?9 z {3 ]; f& a dBu FS.
- M, A* n4 a r+ t( e9 X[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the+ b: a7 V& V, A8 I" u
desired channel.( m6 z2 f* G- z& M1 t2 E' \
The “VALVE” LED is on when the Valve Dignifier stage is active.. N' S+ k. u0 r& N* {
[9] INSERT INSERT function.
0 V% o" f/ k* T, ~ First key pressure: INSERT POST VALVE, the Insert Send is tapped after3 q; b1 R1 e3 ~. Y# H: j
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
* [* g9 A' |; U+ s and AES/EBU outputs.
5 {' v) r# O/ s, Q8 o8 I# K Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
$ b- T7 p9 O4 r- V the valve stage (display: “INS” and “PRE”); the Insert Return is fed via/ p- s1 S. F, A; P
the valve dignifier stage to the Line and AES/EBU outputs.
4 i7 `1 L$ j. W& G Third pressure: INSERT OFF, the input signal is fed via the valve dignifier& h* K+ J, Y9 N3 Y0 P1 T( w- H
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
! P3 M4 ?$ }4 l) B% t0 H receives this signal; display: none).
8 }( j) e( J6 ~/ S$ _3 F5 U Insert Send and Insert Return are electronically balanced and equipped with7 B( O0 N8 U7 M' T/ b g2 S
XLR connectors.- m6 m) E1 ?' ^1 v4 x. h6 ?; z2 V% }5 F
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
" J$ o! j1 v* m/ W$ u0 [ ADAT digital interfaces. Each input channel can be switched to one of the
7 x8 i- B3 C. }0 M$ u channels 1...8 of the multichannel interface. If desired, also a mono mix is
; _$ J8 n N. C' V% W/ ~ possible by selecting the same output channel for both input channels./ n0 Z! e* E3 C& x* E$ l
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone9 j% l0 M5 p1 q9 q) P, c
channel.
* T) _7 W2 B A5 M. I0 g Can be operated only if the input gain selector is in Mic position. The
- m5 x- f2 G. D6 j% M7 c& Y setting remains stored when switching over to a line gain setting.
& a/ v9 U3 W& g" L, F[12] Activates the high pass filter on the microphone inputs of the desired channel.
( R4 j3 m* m( s Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave." D, m2 I Q+ @; h1 K
Can be operated only if the input gain selector is in Mic position. The# l* v2 f" H5 v- }$ p
setting remains stored when switching over to a line gain setting.
+ b) P0 i& ~, u. P[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
4 P0 l& C" b2 l; s6 V) K' C% R[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:3 V ?9 `: Q+ X2 ?$ O' {
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
/ r7 K8 A, m6 T& [ Noise Shaping (display: “16NS”) can be selected.$ I! r) C" T9 T f$ w' @% `
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
. ~: Z5 H0 E% q0 l; P; P7 j5 k4 v: d INT 48 Internal quartz reference, 48 kHz" V; l; g0 N: T" D. k
INT 44 Internal quartz reference, 44.1 kHz
0 L N1 M) H6 M6 j2 o. t WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
4 K( T) I+ X) _( A9 l! @6 t( @' i$ X AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
. k* u2 s( ]# c$ Z+ w AUTO Selects sources automatically in the sequence AES-WCLK-INT
, o7 @: a+ n2 X) S. w6 m VAR Indication only, active if the external source frequency deviates from 48 or- z9 c( t5 Z' x" n" Y# x+ o
44.1 kHz for more than approx. ±3 %.% |( P2 e' K$ T$ P
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
# b9 h. e4 I/ F$ F. c% C' v G either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
4 T" W" R1 g6 d2 [+ W[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
2 [, m4 ?* S. B3 Q- h9 k the danger of overloading the A/D converter with short signal peaks (if
3 E _. X% N6 m* }7 D- O active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,0 Y; o+ |2 z) U5 H, L
allowing for approx. 6 dB reserve before hard clipping occurs
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