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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 4 i4 T! Y o5 H1 T$ c
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英文电子说明书
4 P7 h* I4 ~( s8 v5 y9 q$ L6 P9 \5 Z[1] POWER Switches the unit on or off. The unit is ready to operate with the factory6 o }/ |2 {0 s$ W
default settings. The subsequent settings remain stored in a Flash EPROM
; i9 J% ?* T! Z& K+ u+ @ after switching the unit off (unit contains no battery).
2 N# h) K; ]( x ?% R[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position3 U% b1 H$ Y* g6 q8 ?
between microphone and line sensitivity setting ranges.
( F( F) ]& D) [0 m Mic: Range –40...+20 dBu$ E' n/ F/ L, ~0 y' c5 c( h- I
Line: Range +14 dBu, +24 dBu
" s# X. E0 e _[3] Fine Gain Potentiometer for fine input sensitivity setting.* h9 y! K' L2 W
Range of additional gain: 0...+15 dB., m* d2 ~; r; x( e7 D/ ]
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
: r% n0 N( _4 [9 ~4 P the dBu value of an analog input signal which causes a full-scale output of
/ k8 w9 M& t5 a4 l9 b) m the A/D converter.
3 O* G" D, N( }% A Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
" O: z/ O7 w5 x- c the peak level is therefore +16 dBu. The “Input dBu FS” rotary4 h& R0 T0 B7 Y& O9 F. p' }' h
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine' s: x( Y; @" p4 e9 Y/ X+ G
Gain” potentiometer [3] increases the gain by 8 dB.) Y. v% K2 t9 c& b! V- x4 b% E
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.2 S( o' e: q o+ e& x, b1 ]6 v
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
. ^9 |' }# p8 ~! [: m. P have more body; percussive instruments are less aggressive.
8 B0 V v) t6 Z$ @' S. \ The group delay behaviour due to AC coupling of the stages is different in0 T5 S# P! e' y$ q
tube amplifiers./ B! g% e, Z1 x$ n
The “Bass Warmth” control allows to select the frequency range
1 J, t* l) X2 E3 G& o7 H) ? (10...200 Hz) within which the effect is active.2 k$ ?9 x1 z) p% K3 N) u
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.8 I+ i0 C. e& _* K7 J! _/ {" V
Valve amps have a characteristic response, mid-frequency harmonic content* s: w; t" m" J
is emphasized.
! S1 e/ l% K7 N3 U, }[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
# D7 m1 t- C! Y9 `+ I2 Q o3 U The harmonics spectrum of a delicately overloaded valve amplifier is completely
2 K3 M! `6 [. ^( ?! ?. O! C/ U" U9 I different from an overloaded transistor stage.
& p Z& Z' u! T) N+ i. s The “Gain” control adjusts a gentle overload while the odd-harmonics content
! `0 w$ R9 Y3 `2 q, c2 |6 e0 c can be adjusted with the “Clip” control.' f8 o) B1 k& d& [ ]
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24- Y0 |: i+ N |7 D
dBu FS.
# R. i3 Z. q6 R( Z1 _& B[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the0 F! m$ s3 ^5 Q$ s; Z3 V' F" v5 e
desired channel.
+ `, I4 H9 g: {) X8 g; t8 u% V The “VALVE” LED is on when the Valve Dignifier stage is active.
7 y% A; P8 ]2 z# T+ \1 T[9] INSERT INSERT function.
7 v& A' `$ c; q/ h& m- w# Z4 w First key pressure: INSERT POST VALVE, the Insert Send is tapped after
6 _4 |! L4 o& t8 r6 v the valve stage (display: “INS”); the Insert Return is directly fed to the Line/ U- ?6 O9 ^. D. H3 ?
and AES/EBU outputs.
/ L, e3 d9 M1 A+ ?2 } Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before! G: w X [& }& h- j
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via5 V+ j) Q8 v5 ~1 ~
the valve dignifier stage to the Line and AES/EBU outputs.
# w! K I) I9 C; L- n7 X Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
3 f7 _7 R- ?# ~# @ h. \# s stage (if active) to the Line and AES/EBU outputs (also the Insert Send output* R* `! Q: l% z; L! u( I, Z1 ]$ w1 m
receives this signal; display: none).
5 W( n6 e7 \+ K. V- ` Insert Send and Insert Return are electronically balanced and equipped with2 g+ Y4 ]/ J# z) {# C, L' n
XLR connectors.
! ]3 J$ f& s: \* Y, h+ h- Q[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
8 c* C# e7 }( J6 t; z3 `; n ADAT digital interfaces. Each input channel can be switched to one of the
6 \) j; r7 u- N/ ]0 u$ L channels 1...8 of the multichannel interface. If desired, also a mono mix is/ [/ k3 @/ V" I9 T, l4 H
possible by selecting the same output channel for both input channels.
: Z2 X: H. S' j Z+ y[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone$ L# M( h$ n# n$ ], \: I. {
channel.
9 Z5 P8 f. ]8 o0 _/ f" _3 d/ {' L% G Can be operated only if the input gain selector is in Mic position. The
* j) _4 l3 T2 Y setting remains stored when switching over to a line gain setting.
4 g. @ W+ a$ \$ Y+ O7 f[12] Activates the high pass filter on the microphone inputs of the desired channel.' c9 l q7 M0 Z' Y/ u, ?+ p
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave." X, J2 _4 M+ o* c; D4 D+ R" n+ ]
Can be operated only if the input gain selector is in Mic position. The
1 o3 V' X1 d! L, o- a; _4 s setting remains stored when switching over to a line gain setting.
' r, c, S% n7 d% X[13] Ø Toggle key to activate the phase reverse switch of the desired channel.! s3 T3 o& s+ g j$ p2 \0 s/ P$ |
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:( W: Z2 z" H, s- j+ ]$ A }& ^
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
2 ]7 I/ N. f2 Q: S) [+ X Noise Shaping (display: “16NS”) can be selected./ x0 q: M7 {$ w$ q8 @! u, }
[15] SYNC Selects the synchronization source for the unit. Possible selections are:( e6 M' l* w% T$ I- c5 k4 s5 F2 C
INT 48 Internal quartz reference, 48 kHz
. X" [1 `( J6 y- C9 A" k% ^ INT 44 Internal quartz reference, 44.1 kHz
! \/ S' {+ O% p7 H* R WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized). p+ O, Z. t, w9 I0 }- O
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
! ~: O+ i# K6 T/ y( B5 p AUTO Selects sources automatically in the sequence AES-WCLK-INT" E5 ~. s( f! c L/ ~
VAR Indication only, active if the external source frequency deviates from 48 or' n9 |" J( U1 r5 {( t
44.1 kHz for more than approx. ±3 %.
, M7 B$ B- i( R9 Y, p. [! W2 ?[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
9 r y+ o( A' d4 U5 j either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.7 c& B; y$ X. I2 Y, ^! R! F8 Q, s2 W
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce9 m+ v. ]8 n. z3 ^
the danger of overloading the A/D converter with short signal peaks (if# h$ O$ x2 v% H, Y' }% C6 t* c
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
2 q; J- N/ l; D; q9 ?" Y) o4 t allowing for approx. 6 dB reserve before hard clipping occurs
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