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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 3 N( T% P, b' }, Z
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H( Z8 Z7 z7 C) w V英文电子说明书
9 G6 j T" A2 k1 w* ?" `[1] POWER Switches the unit on or off. The unit is ready to operate with the factory' k# j4 H9 a- m0 |' m
default settings. The subsequent settings remain stored in a Flash EPROM
1 d1 S, R& _- d( l# j+ M( O$ B7 v after switching the unit off (unit contains no battery).
% H/ F" I5 {+ S" S! O[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
0 s5 X+ D, h! { between microphone and line sensitivity setting ranges.: ?6 S5 K$ }$ c" t4 w; M: ]6 m8 n+ U
Mic: Range –40...+20 dBu# U3 N1 N% F% B+ S6 H4 K1 K% E" J- S
Line: Range +14 dBu, +24 dBu
* T: f& ^( f( H$ M[3] Fine Gain Potentiometer for fine input sensitivity setting.9 W1 f9 e4 b" k6 T
Range of additional gain: 0...+15 dB.+ K+ b# V1 ~; u2 n
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
" {6 n( m. x8 m I the dBu value of an analog input signal which causes a full-scale output of2 \; F8 N$ K0 E( S5 |9 ~* t
the A/D converter.
( \3 [6 ~3 U8 G8 W4 z Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;/ Z$ J; v( S$ |& E/ O& u! O* u
the peak level is therefore +16 dBu. The “Input dBu FS” rotary0 E" E8 \% a2 W' H8 s
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine2 g7 Z- |' V) U( {: h
Gain” potentiometer [3] increases the gain by 8 dB.
5 { K5 z- t8 g- a% [2 Q[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.7 |& x$ h! o h, B/ u$ v$ ^' u& t
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals! c: N, {6 {( e" m, O
have more body; percussive instruments are less aggressive.9 D" `" U- L; P' }7 G2 H0 V
The group delay behaviour due to AC coupling of the stages is different in
* m K; ^* x& u, [/ L tube amplifiers.* f M/ x: D' g( O
The “Bass Warmth” control allows to select the frequency range
& J- b$ ?6 M* `) s" W (10...200 Hz) within which the effect is active.2 c4 l! t, x8 J# q/ \! B8 N
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
6 _5 v& Z+ \5 o6 Z5 X* L% S. \% ? Valve amps have a characteristic response, mid-frequency harmonic content
* x4 b( ~2 P/ _; H is emphasized." Y# z( v$ w/ J9 {
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
: [& }7 g% `' Y7 P The harmonics spectrum of a delicately overloaded valve amplifier is completely, |' P, \& R% m& }
different from an overloaded transistor stage.
# n, o, S7 X. r* A% M The “Gain” control adjusts a gentle overload while the odd-harmonics content
; D4 P! E! S a& r2 O6 t( F' G3 R6 y can be adjusted with the “Clip” control.0 P( T$ f' E( e) v& g
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
3 C$ ?5 V( w& p9 U dBu FS.- l+ R" P+ o$ R! r
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
4 J3 x% m5 U; c4 ?% P( c2 a6 p desired channel.5 U, g4 k+ O5 F- f
The “VALVE” LED is on when the Valve Dignifier stage is active.) x4 T2 P: O' N3 u1 F
[9] INSERT INSERT function.
, v9 O- q+ \/ o c First key pressure: INSERT POST VALVE, the Insert Send is tapped after% A1 K/ F8 b2 {3 z# g5 R
the valve stage (display: “INS”); the Insert Return is directly fed to the Line' ^& O. M' \. E$ ]
and AES/EBU outputs.
( D1 x, y" Z/ y+ X/ L- }5 b; @ Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
0 Z( n& }+ K' |5 l) C the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
- E3 |' U3 J- B' S) L! \ the valve dignifier stage to the Line and AES/EBU outputs.
7 x/ A% L9 o9 P( l; q9 K Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
% E- ?* n# ?7 K4 Y7 n stage (if active) to the Line and AES/EBU outputs (also the Insert Send output. k0 Y! x4 u7 H9 e, ~
receives this signal; display: none).
; w% a6 H& D" d$ B+ U% L Insert Send and Insert Return are electronically balanced and equipped with2 e7 g5 c! v. o& s! `8 G4 Q, p0 ^
XLR connectors.
& Y1 ~( Q) w0 Z) \: `& Y[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
+ V. y# C' y: [1 v8 a ADAT digital interfaces. Each input channel can be switched to one of the
' M! B8 ^; g* j( c' p4 ?. z. h' U channels 1...8 of the multichannel interface. If desired, also a mono mix is" e! K$ C( h/ Y# P2 U
possible by selecting the same output channel for both input channels.
9 p: w. {( C2 v; e B[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone# c: g8 f* Q$ q. n" H0 @8 O( u6 s
channel.
, P+ V5 F' P$ V$ `* h$ Y9 H) f8 K Can be operated only if the input gain selector is in Mic position. The
$ ~4 q: C& v3 F; {8 | C setting remains stored when switching over to a line gain setting.: v2 y+ N" o* M2 U8 @7 z- T" W
[12] Activates the high pass filter on the microphone inputs of the desired channel.
, F" L& F2 W Y/ l Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.: R, u+ O: m) k) ~! Y$ p
Can be operated only if the input gain selector is in Mic position. The6 D( V+ e9 z% f
setting remains stored when switching over to a line gain setting.
+ O/ |! d6 T: b) t' F- }4 x7 m- R[13] Ø Toggle key to activate the phase reverse switch of the desired channel.! k% G( {3 h5 m( |6 \
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:) m4 @, W! z9 _) X2 H! n
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
- l0 d: ]# t5 L Noise Shaping (display: “16NS”) can be selected.
H9 H+ n: B" [& [5 a% _" O }$ v[15] SYNC Selects the synchronization source for the unit. Possible selections are:: o: U7 c& J% y8 C- C; _8 P
INT 48 Internal quartz reference, 48 kHz
! T/ z4 B: Y! B INT 44 Internal quartz reference, 44.1 kHz
! @- y6 p7 Y. R e. E WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)2 Q8 L) l; Q1 ~
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
) a% k% [5 K! G) W3 ^ AUTO Selects sources automatically in the sequence AES-WCLK-INT, r0 q; e& N" y/ E8 M/ e/ I9 w
VAR Indication only, active if the external source frequency deviates from 48 or- @# g: m! _4 k% ]& c9 s
44.1 kHz for more than approx. ±3 %. R1 ]8 O+ C( p8 s$ ~# \+ m
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
' L+ ~7 b: d8 m6 p either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
5 X0 L4 |, c/ W3 F' W' \[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
) r6 }( P8 m5 N& L$ S the danger of overloading the A/D converter with short signal peaks (if1 e0 {; e6 R" ~
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,6 B. m# P. C: o$ y7 L
allowing for approx. 6 dB reserve before hard clipping occurs
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