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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 5 W0 j' h: D4 j) S6 \
3 p2 }, H" M& @+ M英文电子说明书
" r: X7 T: i9 z; t[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
1 t" z2 E _& Q5 E+ V default settings. The subsequent settings remain stored in a Flash EPROM) q# I+ R$ V1 e H" S5 m; C9 V6 V- V
after switching the unit off (unit contains no battery).
5 R* ?! q/ f2 A. P' i[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
7 e1 `% Z/ Y5 _3 ^% \* } between microphone and line sensitivity setting ranges.
6 ~4 q9 a% Q( C3 R4 x" k Mic: Range –40...+20 dBu
" R% ^% r. } G Line: Range +14 dBu, +24 dBu
$ W; g+ q# e9 S7 P6 w4 p! s[3] Fine Gain Potentiometer for fine input sensitivity setting. U' \2 C v; Z6 x* o' B
Range of additional gain: 0...+15 dB.
, d. m" j, C0 J2 j; M* g8 i; @0 x Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
R" h% s! @. Y j2 Q3 y the dBu value of an analog input signal which causes a full-scale output of
2 b# `8 Y$ [3 O5 f- H3 F the A/D converter.
; u* e; ]/ K. {$ R. i4 R2 j! ~& r& b Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
' }9 k& a* F5 D! r the peak level is therefore +16 dBu. The “Input dBu FS” rotary: {& A, d: N0 X* X( ?# a0 ~
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine! g: L, Q" L; u
Gain” potentiometer [3] increases the gain by 8 dB." G6 y( Y( ?2 `3 V& j! L
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.8 P& u/ X6 H5 W- K7 X6 r& I
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals% P( n$ A1 |0 Z& b& k5 t4 |% {; t: }
have more body; percussive instruments are less aggressive.
& A+ d& x; H4 b( ~% Z# ~3 N The group delay behaviour due to AC coupling of the stages is different in' f" n1 }6 Q- }1 \; ^2 W+ [
tube amplifiers.7 o' U) d! r# F# r; r
The “Bass Warmth” control allows to select the frequency range1 C/ D0 r1 C& J! D' O
(10...200 Hz) within which the effect is active.
8 Q- S3 |/ I8 w1 ^2 h[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.' _; G( r- \2 Z7 u
Valve amps have a characteristic response, mid-frequency harmonic content9 c" l- c- B7 d% D
is emphasized.7 z1 f# Q) v, K" G/ } b2 f
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer./ }! q; u$ x% U& d J# b
The harmonics spectrum of a delicately overloaded valve amplifier is completely
& ]. Z8 F/ y- Z: } different from an overloaded transistor stage.3 ]* J4 {7 W7 I8 n( I. }- g) _
The “Gain” control adjusts a gentle overload while the odd-harmonics content- o* K) q/ _& l/ F! M9 c
can be adjusted with the “Clip” control.
' n0 u8 h8 r7 P# @4 F& @[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24: [2 R# B" r8 w
dBu FS.
0 X0 t/ D3 A# P2 A5 i[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the) M9 @( N$ F* M1 d0 g8 Y, n" E
desired channel.) Z6 a# F4 e8 S) w. l
The “VALVE” LED is on when the Valve Dignifier stage is active.
8 S' h7 r& v; q& v' P[9] INSERT INSERT function.
! ~$ z& l, G" z8 q First key pressure: INSERT POST VALVE, the Insert Send is tapped after
4 y. Z) ?4 } r) y4 W the valve stage (display: “INS”); the Insert Return is directly fed to the Line
' _. m E, S( P' |1 R3 u and AES/EBU outputs.
; a- b1 S% _, c/ o( J* g6 v Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before* x* ~. U. z" O, P3 Y6 T
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via% N# V T9 r6 R) S) p, d- X8 o
the valve dignifier stage to the Line and AES/EBU outputs.8 s4 Y- X. r" t5 c5 m
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier: [( m/ M5 @6 c" } `
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
6 v* `" q/ v6 Q) [4 e6 ~$ ?6 c4 k6 w receives this signal; display: none).
/ v" {- F: g% y) }) G1 F$ p& d Insert Send and Insert Return are electronically balanced and equipped with9 L2 [& x" V# j( Y- u: `
XLR connectors.) e, X: G% I4 x$ A# `( Q) C4 m
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
9 I4 C9 T1 m/ L, a, d ADAT digital interfaces. Each input channel can be switched to one of the5 T6 k6 P: c. v/ P% p; _- E j* {
channels 1...8 of the multichannel interface. If desired, also a mono mix is0 w& ^; r3 K# L o* P. X
possible by selecting the same output channel for both input channels.
$ |2 z7 J! b) Q8 z( v. S[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
/ X, v- m& i5 ~# G8 Z channel.1 q( k5 J! B3 A/ e g) B
Can be operated only if the input gain selector is in Mic position. The7 W) m8 n, H! N$ S9 ]' M
setting remains stored when switching over to a line gain setting.
6 Y1 C/ L) u2 p, v! O, h[12] Activates the high pass filter on the microphone inputs of the desired channel.+ Y% i9 e1 b4 m# @, i
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
( S$ M3 g9 X1 z3 j5 o1 I9 J6 ~/ S7 D Can be operated only if the input gain selector is in Mic position. The
0 U( _( T$ I: y' }; x; S- s0 W) z setting remains stored when switching over to a line gain setting.
7 o. K$ C' m. H) r# {[13] Ø Toggle key to activate the phase reverse switch of the desired channel.% M2 z, R. Z$ I/ Y2 b2 \# l: [
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:( c9 `& u J% t
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
( s4 k9 Z8 k* F2 X5 S2 N; Y Noise Shaping (display: “16NS”) can be selected.
( `8 ~5 G# }5 [$ {+ J. Q8 _8 |[15] SYNC Selects the synchronization source for the unit. Possible selections are:* ^- z1 y+ @* Q5 G. |9 k! x8 z. U# O
INT 48 Internal quartz reference, 48 kHz
* A5 G: c& f3 d0 k INT 44 Internal quartz reference, 44.1 kHz& |9 }0 F2 T$ Q7 K8 {, p
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
- \0 G$ u" p( m) i AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)5 y0 b' n" n0 U% s
AUTO Selects sources automatically in the sequence AES-WCLK-INT% E* R- }: {, v O, p/ v8 T
VAR Indication only, active if the external source frequency deviates from 48 or: H0 D9 C% v- C
44.1 kHz for more than approx. ±3 %.2 \" w2 v: v4 P
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
$ P- R! U) ?- A& e, h' v( i+ } either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.0 }" ]3 W I+ x3 O# F* J* G2 d
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce3 r6 B: G! y% @6 y
the danger of overloading the A/D converter with short signal peaks (if
: r) \2 d, S8 t3 \& _0 {9 {+ F% k active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
. U! _. ?$ ]5 q( x/ W4 ^ allowing for approx. 6 dB reserve before hard clipping occurs
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