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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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, {; P2 R! C0 I* o英文电子说明书/ a; Q# ` b6 z6 e
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory ~' G1 s2 T8 [9 I4 e2 t. ^( j
default settings. The subsequent settings remain stored in a Flash EPROM. S/ o0 K. q: r+ H* H) o( c
after switching the unit off (unit contains no battery).: r$ J" l' `9 `5 D9 v
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position+ F9 S' b$ ^, R
between microphone and line sensitivity setting ranges.
& C$ l' u# a+ j9 o% [# E0 r9 J, ~ Mic: Range –40...+20 dBu
5 r) P' D$ W D5 i Line: Range +14 dBu, +24 dBu
, ?7 G; _/ P- b. N0 M1 J2 \$ O/ }[3] Fine Gain Potentiometer for fine input sensitivity setting.; H5 l' ], O% P3 C
Range of additional gain: 0...+15 dB.
3 C U0 P- D! v8 X2 O( U+ ^ Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
; J& O U, L; } G( x the dBu value of an analog input signal which causes a full-scale output of7 O7 t1 j: k& B' i9 `
the A/D converter.
; C( n1 F7 ^4 L( M! C1 ~% P9 v" N0 z8 O Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
5 W! ]# j- A' v7 w the peak level is therefore +16 dBu. The “Input dBu FS” rotary
9 F8 ^0 T; C( U, _/ B switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine1 o% p- w7 \# H" Z" o( `
Gain” potentiometer [3] increases the gain by 8 dB.6 G, }) s2 O' N: `5 L! U
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
! Z, n% @( i+ C/ t$ f[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals! p( t5 C" X9 a6 Q
have more body; percussive instruments are less aggressive.4 v& ^* o6 a0 G1 V) J' y
The group delay behaviour due to AC coupling of the stages is different in7 n3 U0 ~$ `7 u! F ^: d' M
tube amplifiers.
* s3 v2 ^) I. {% W/ {. f The “Bass Warmth” control allows to select the frequency range
! |, L3 k" ]+ f: W6 m T/ g7 U, ]% D+ F (10...200 Hz) within which the effect is active.
* w7 ^% u1 U7 g# x[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.& Q0 z9 [+ J" T: q
Valve amps have a characteristic response, mid-frequency harmonic content- P( h: C; X% F/ d) ~
is emphasized.
- C/ h+ n. |5 O& Y& @8 C1 h- N[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
4 i# {- M4 ]5 j' `7 z+ ^/ j O$ G The harmonics spectrum of a delicately overloaded valve amplifier is completely. h( q5 {- {) V3 k* H' W
different from an overloaded transistor stage.
9 v" M1 ?: Z; Q5 O& _5 t9 V; V7 O2 ? The “Gain” control adjusts a gentle overload while the odd-harmonics content
* x) U( |% r2 _. [5 k l can be adjusted with the “Clip” control.0 t( _% y8 d$ v$ u
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
$ L+ d3 f' x+ x0 i2 t6 s dBu FS.4 t/ o" O" E, S N/ Q8 N- B
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the1 B6 W4 c1 M! k1 t7 p/ k* g
desired channel.* F$ k* `1 F" |5 c+ }" k
The “VALVE” LED is on when the Valve Dignifier stage is active.# K% B u. V' P
[9] INSERT INSERT function.
' E# `% s7 h8 B& A/ D/ t- t First key pressure: INSERT POST VALVE, the Insert Send is tapped after) q4 Z+ T/ F7 k
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
, G7 ]* i1 w+ z3 w& [ and AES/EBU outputs.& n% T& G; U/ U
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before7 r5 Y) e# j y+ Z4 i4 [6 M
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
1 M* ~4 L* X# b, F5 [( [0 ~ the valve dignifier stage to the Line and AES/EBU outputs.
: v! @; g# K& x0 | g. D Third pressure: INSERT OFF, the input signal is fed via the valve dignifier: L: C* {1 a4 v: j( {
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output ?' h6 ~+ _+ \# z
receives this signal; display: none).
# h/ j! \# u" u Insert Send and Insert Return are electronically balanced and equipped with Y/ I. A0 L' E$ {% x5 K6 r( s
XLR connectors.
5 N3 g0 X! j4 M" u7 T[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or& k. {+ p* @' g. k
ADAT digital interfaces. Each input channel can be switched to one of the& ~# a/ ~3 _3 V' }2 [
channels 1...8 of the multichannel interface. If desired, also a mono mix is
1 g+ _, O0 Q. T3 I4 O m possible by selecting the same output channel for both input channels.
% S7 Y4 x; o) y. J4 p[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
- S' V2 d- O1 D7 b channel.
3 S6 T8 R0 ~$ i' x Can be operated only if the input gain selector is in Mic position. The
+ q6 U3 ~! X( `6 k% {$ q- S setting remains stored when switching over to a line gain setting., h6 D+ T* u( e/ c
[12] Activates the high pass filter on the microphone inputs of the desired channel.2 S% e- r; m. K6 s+ L# U2 O
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.* m! r3 m$ A" g1 F0 y
Can be operated only if the input gain selector is in Mic position. The ]7 I1 O' v/ A o
setting remains stored when switching over to a line gain setting.( b+ d* M8 j. G1 m3 h
[13] Ø Toggle key to activate the phase reverse switch of the desired channel." }3 h2 p4 U* p b3 |& L9 N
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:# s5 e* d0 B6 c" ~9 \
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with! r- c9 p' Z# s$ S$ e
Noise Shaping (display: “16NS”) can be selected.
( r1 t R+ {2 u; A# T[15] SYNC Selects the synchronization source for the unit. Possible selections are:/ W! p9 n3 r. F8 z
INT 48 Internal quartz reference, 48 kHz: l* g0 \6 Z& _" s6 p4 R+ a
INT 44 Internal quartz reference, 44.1 kHz3 V1 R+ T P4 |$ l3 y2 S" n
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
9 F: q: ? X' Y AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
, {) e; s" x7 o! r6 | AUTO Selects sources automatically in the sequence AES-WCLK-INT* Z- x$ q. c# p% o. u/ @7 P
VAR Indication only, active if the external source frequency deviates from 48 or
5 G& o3 T( D& B$ z7 G7 K) m 44.1 kHz for more than approx. ±3 %.+ _( N) p9 b K$ ^8 Z2 Q( h
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
: s4 C% j8 W4 G. Z" { either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.% E- D9 `; Y# E7 p9 j, m4 u
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce2 ?. R$ l, M( T/ K, V
the danger of overloading the A/D converter with short signal peaks (if# L" s, [0 ?" N% V
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,4 g9 z L7 O4 i
allowing for approx. 6 dB reserve before hard clipping occurs
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