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发表于 2012-5-21 23:23:18
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本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 $ ?9 ~* D5 I1 u7 U, i- C0 ^
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- A' `" U5 n( p4 G) i+ k2 \) Q, o英文电子说明书
2 G# |6 ^5 y! D* U4 W; s4 c0 e[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
5 x1 [% w4 b. }0 g9 c5 _ default settings. The subsequent settings remain stored in a Flash EPROM1 u* h$ J- h6 @9 W; i0 u
after switching the unit off (unit contains no battery).5 K: T6 C6 l* [6 u' b
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position, y/ V* o9 b% o! s( \
between microphone and line sensitivity setting ranges.
' H: Z' V4 V2 p$ a8 \4 Z" f2 c Mic: Range –40...+20 dBu
2 l& A3 {2 t; k) R" G, D4 [) Y Line: Range +14 dBu, +24 dBu2 ~/ _6 [8 U4 Z i! J
[3] Fine Gain Potentiometer for fine input sensitivity setting. _) L) _+ u$ U7 }' W- t) R
Range of additional gain: 0...+15 dB.
# [/ v7 v- O$ [ Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
- S0 {( E. D$ H/ E9 j6 a } v the dBu value of an analog input signal which causes a full-scale output of. d- s8 k, D( Q4 m
the A/D converter.
9 K6 ^% k; _0 C) s- r# v Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;/ e9 U( Y \3 N4 k5 h
the peak level is therefore +16 dBu. The “Input dBu FS” rotary6 g1 B3 b' b8 \6 L
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
5 Q p4 V- l2 X Gain” potentiometer [3] increases the gain by 8 dB.- d, |6 {% R2 A0 L: {
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
4 t3 s1 F$ Y& D I[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
0 c3 i9 d6 I' u! q; s) u. q have more body; percussive instruments are less aggressive.
- Z+ N) @: J/ {1 { The group delay behaviour due to AC coupling of the stages is different in9 G9 l" j; x/ N" x. @9 ?5 j
tube amplifiers.8 i! j6 h W+ k# H P8 [
The “Bass Warmth” control allows to select the frequency range+ \# K0 j# ^9 H/ A W% o& R
(10...200 Hz) within which the effect is active.
Z9 x8 \3 g2 N0 E9 q2 [# |) x[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
+ w5 _1 k! d- t/ Y- } Valve amps have a characteristic response, mid-frequency harmonic content& |5 e7 y9 k, i
is emphasized.7 w2 D" L1 V* H5 t- l* g/ Z0 g1 q
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.7 k- W9 F/ ^/ |
The harmonics spectrum of a delicately overloaded valve amplifier is completely
?# g9 C0 N9 I& o5 X7 Y" _7 v; O different from an overloaded transistor stage.
8 u8 a2 u' S6 P& G* } The “Gain” control adjusts a gentle overload while the odd-harmonics content8 j! K5 U0 h! \/ B4 @/ y
can be adjusted with the “Clip” control.
& m! b8 a+ P1 J2 b[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
3 ~* V5 f; n/ t# r3 N. J6 b dBu FS.8 L7 T* v6 p4 I' }% P- k
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
O$ s- O# f/ P% e# r! k desired channel.
! A) X+ b2 M" S6 [$ }6 `3 [ The “VALVE” LED is on when the Valve Dignifier stage is active.8 @! M- h X( Y+ k7 H# p: P
[9] INSERT INSERT function.# s- z/ h2 a+ i! k' M! j$ l& j
First key pressure: INSERT POST VALVE, the Insert Send is tapped after. w/ @0 e% a* a6 C ] C4 g* B s
the valve stage (display: “INS”); the Insert Return is directly fed to the Line8 O: X) C0 u5 d: j2 M
and AES/EBU outputs.
. _& \1 ?# ^* ~5 o* X5 `7 @ Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before: j7 x/ }/ r n: X1 I& X
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via! d3 L L! ?! ]4 L) c- f3 i
the valve dignifier stage to the Line and AES/EBU outputs.
0 m; a4 A2 w4 T+ T5 j" v Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
/ L0 x/ D, F }4 Y! | stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
' r- {" ^# Y/ u7 N, x1 ?: } receives this signal; display: none).# n7 Q. O8 V) u' {! G
Insert Send and Insert Return are electronically balanced and equipped with
3 Q. ]+ ~( C1 h/ b. P6 d XLR connectors.; e6 M* Y" Y6 y, e
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or; U" u0 m$ ^( t5 `
ADAT digital interfaces. Each input channel can be switched to one of the2 E3 B9 L' C6 O+ L6 x
channels 1...8 of the multichannel interface. If desired, also a mono mix is/ J9 c/ n, i5 T |
possible by selecting the same output channel for both input channels.
K1 {! q" n- W3 K$ Y9 Q6 o( b2 \[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
4 g) t6 D: e M5 R8 O. u channel.
3 X) N" N2 E8 w* L( V4 U Can be operated only if the input gain selector is in Mic position. The
, |7 R0 E7 \& g3 s4 \0 s! R+ ~ setting remains stored when switching over to a line gain setting.' u/ ^' w5 T& L9 W$ P. _% m
[12] Activates the high pass filter on the microphone inputs of the desired channel.
1 g! u/ s: u! {: M+ S. L* n Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
' Y, f! s0 P# y( m Can be operated only if the input gain selector is in Mic position. The9 ?! M7 ~# ^9 r8 w4 K
setting remains stored when switching over to a line gain setting.7 M( Z( V) Z6 }, p
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.. ]5 s; S& b- F, D( ]/ Z8 K( ~
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
" r( P7 U4 c7 z" {% c+ w “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
) u6 }9 `6 O6 S) v) q. F } Noise Shaping (display: “16NS”) can be selected.5 [) |# V" Y5 f' t) N: c
[15] SYNC Selects the synchronization source for the unit. Possible selections are:6 O8 V, v. A% f. j# G+ ~
INT 48 Internal quartz reference, 48 kHz
6 Q+ j4 m' ]# u! Y' B INT 44 Internal quartz reference, 44.1 kHz
/ ~: e( O! X2 ?: j+ K8 e& d- y WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)0 d" \0 E* _4 _4 s6 [( F/ H
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)# o# f( o: \ `6 l$ s6 ]* E+ T
AUTO Selects sources automatically in the sequence AES-WCLK-INT1 D% U) o0 Y% g5 P
VAR Indication only, active if the external source frequency deviates from 48 or5 b8 I, I# i; w: b
44.1 kHz for more than approx. ±3 %.7 H3 Q# h. z: n$ f7 c8 T
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
( }! D* M2 ]' h6 ]! K either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
: e4 _! ]8 F6 L1 b4 t4 ][17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
% [2 I( \9 h6 y' S1 |/ K3 f0 o the danger of overloading the A/D converter with short signal peaks (if
' p) G S" J% d2 U5 p$ u4 u active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
4 X% \) W- q2 ?3 i) ~, E. a9 k; p/ K allowing for approx. 6 dB reserve before hard clipping occurs/ _7 }1 U0 K, T' u# d
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