|
|

楼主 |
发表于 2012-5-21 23:23:18
|
显示全部楼层
本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 2 { v: [1 D. X5 f+ [& i
$ l4 E* Q: _: U1 {3 N7 e3 U1 N2 s
英文电子说明书
1 C. W/ i* D& O[1] POWER Switches the unit on or off. The unit is ready to operate with the factory' g! f) b% Z# l3 Z( G: {
default settings. The subsequent settings remain stored in a Flash EPROM; w4 G! M! _/ T$ h }' ^' e
after switching the unit off (unit contains no battery).
3 @7 ]* ^0 ?- J) U) F- S; z[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
; [7 O3 N, `% B6 d0 E between microphone and line sensitivity setting ranges.# n5 j2 W$ \( \1 _- O
Mic: Range –40...+20 dBu' J" R5 I) `$ m1 B5 J. x6 o( i3 `
Line: Range +14 dBu, +24 dBu
) @7 Z* }: O) o( {, Q9 e0 ~[3] Fine Gain Potentiometer for fine input sensitivity setting.$ C$ L8 x& o. a( b o
Range of additional gain: 0...+15 dB.
1 f/ ]3 P/ m' t' B o' j% q8 ^- \ } Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents6 A/ C0 [: O; J9 P& O
the dBu value of an analog input signal which causes a full-scale output of( `) s5 L% t" d3 D5 i3 v6 |
the A/D converter.
0 z/ @' [+ U9 y' t" g Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
; m N v3 j/ \3 x; z3 n6 T the peak level is therefore +16 dBu. The “Input dBu FS” rotary2 b. t/ R2 N' }5 l0 U; D, y0 q
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine+ }; M( Y" e; n. G% x8 ~8 N
Gain” potentiometer [3] increases the gain by 8 dB.3 F) N6 k/ h N" m' O
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.' ~/ B; G' G# I
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals& v9 K; T ~- y% s
have more body; percussive instruments are less aggressive.# f& W% x9 |) q9 J) _
The group delay behaviour due to AC coupling of the stages is different in. b( | _, a& x- k
tube amplifiers., V: D% }4 H: v/ a1 |
The “Bass Warmth” control allows to select the frequency range. f* }5 o+ {' z8 E, q' m$ L. X8 y
(10...200 Hz) within which the effect is active.; E% w/ j ]7 [1 o+ s5 t1 [
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.8 M# @/ o' `$ Z9 [. G
Valve amps have a characteristic response, mid-frequency harmonic content
9 ?, T- Y$ w& X# ~( z is emphasized.
2 W8 z/ }7 S" H7 J- G[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.# R4 K: Q A1 f6 Q; V! T1 p" _
The harmonics spectrum of a delicately overloaded valve amplifier is completely. Y4 R" y& \" g, K% T, T% c
different from an overloaded transistor stage.$ R6 E9 k( L9 c8 P/ _* z$ ?. T2 d
The “Gain” control adjusts a gentle overload while the odd-harmonics content
' n! ^( m/ \, p: B }3 H. | can be adjusted with the “Clip” control.; h" o- l8 C2 k# d
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24/ ]; C3 T7 W( _, R% e$ o. {/ f
dBu FS.
' g% e$ w3 Q6 `9 y7 z" U' y/ E[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
: A. }# S' L l* v% B- }/ T desired channel., K/ N) c& b& K; ^& v$ j
The “VALVE” LED is on when the Valve Dignifier stage is active.. p4 Y8 g! S) |' O
[9] INSERT INSERT function.& w' m% u. y4 L) m: F
First key pressure: INSERT POST VALVE, the Insert Send is tapped after% w$ s& {; k N O( w( z
the valve stage (display: “INS”); the Insert Return is directly fed to the Line& O( N" i. ]' d( Q8 Q8 D
and AES/EBU outputs.
1 m) h; B6 o) k7 r Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
( L* f, R+ N% e# N2 C& K+ J the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
$ B, u1 s1 | g: `# D' P2 R the valve dignifier stage to the Line and AES/EBU outputs.' t* d% E; c# b
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
" ] D5 S) |9 p" b( ?8 G7 I stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
$ V% i O& `. A8 G9 J | receives this signal; display: none).
% g! A6 }* f$ n4 \ Insert Send and Insert Return are electronically balanced and equipped with
, E' J+ u! C, Z( y XLR connectors.8 y6 ~" Y! M- M
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or% y7 W& P: C# A3 O$ d
ADAT digital interfaces. Each input channel can be switched to one of the! |, A" h9 _/ u, ^5 |! ]: T6 {
channels 1...8 of the multichannel interface. If desired, also a mono mix is
0 F4 x4 @ k0 R, }5 I possible by selecting the same output channel for both input channels.& ^/ d' d6 l# y5 B6 g! ~+ F, F
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone; A& m. ^$ t. J4 } |) R2 J# ]3 g
channel.% F* K& g" }; I
Can be operated only if the input gain selector is in Mic position. The
4 C* p' S6 m* p4 R, `3 R setting remains stored when switching over to a line gain setting.8 D# i4 e" @2 R) K% ^
[12] Activates the high pass filter on the microphone inputs of the desired channel.( @6 J& v. Z+ u9 }! m l% p
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
# [7 B$ v( y9 R4 T Can be operated only if the input gain selector is in Mic position. The
) J6 x/ F/ g* `9 B$ Z, z setting remains stored when switching over to a line gain setting.' Y$ y& |& N. P& ?+ R; W% |: f
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
4 N. K- a- T' n[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:2 g2 ~! c7 E8 L* c* y
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
! ]3 W% n1 L5 S6 h Noise Shaping (display: “16NS”) can be selected.. q5 U* Q) d A! n8 S. a# g
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
2 X: S: g$ |$ k INT 48 Internal quartz reference, 48 kHz
& k1 f1 L. [! M INT 44 Internal quartz reference, 44.1 kHz) o4 E& V; _. Y- q
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
/ u, O! [# z" @. t AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized). P4 L r) ?! O5 }- A2 R
AUTO Selects sources automatically in the sequence AES-WCLK-INT
8 A9 z; o1 w$ o, U6 y VAR Indication only, active if the external source frequency deviates from 48 or+ t/ Q3 Q' k% f! A: R
44.1 kHz for more than approx. ±3 %.
- s5 }! `# V, N" n9 ]) U9 w[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –2 d7 Z, {5 c+ v8 [2 G. E
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
7 s3 _) R1 S3 h- m# i( b[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
( ?3 k. n' L! Y8 Z5 d the danger of overloading the A/D converter with short signal peaks (if8 ]& F; {- H: z. }* e3 J
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,1 K& Y4 D6 \6 L1 {
allowing for approx. 6 dB reserve before hard clipping occurs: P: E V1 u5 _0 S% s; M5 @
' U& r! N) ? D1 z! u5 q # X; a! f& t1 [- H3 @ ]- D5 F6 {
|
|