|

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 $ r! o! @# p1 ~8 o [ A5 F4 B
/ o$ c" {4 o) K( U% s' X: [
9 u8 Y+ L3 _9 y4 J
英文电子说明书
/ {6 ] i, A- J2 m) B w$ b, F[1] POWER Switches the unit on or off. The unit is ready to operate with the factory: b. b9 h- B* u! D/ S% H/ P% ~
default settings. The subsequent settings remain stored in a Flash EPROM
0 ~* @# V$ P% Y/ \" z# _+ c3 [ after switching the unit off (unit contains no battery).
M, k0 f* V* u2 |' R) n[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position, N2 f, y* P, R/ @; [1 O3 \- ~
between microphone and line sensitivity setting ranges.
2 _6 y1 ~, v9 W. a4 ^, } Mic: Range –40...+20 dBu& \6 \9 W! B# @8 h8 N/ T. {
Line: Range +14 dBu, +24 dBu* H% z4 T% N: y! |) {
[3] Fine Gain Potentiometer for fine input sensitivity setting.! |0 g5 N# e- A1 c; q
Range of additional gain: 0...+15 dB." _1 A4 I$ T# S+ e$ R* a
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents3 R* F, n4 Q& @
the dBu value of an analog input signal which causes a full-scale output of6 K4 _( G/ q0 b7 m! l l4 ]8 H h7 W
the A/D converter.
( [/ {) i1 E8 U9 D% W Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;$ U2 }" N* J6 s0 y- k6 s
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
T6 M4 D7 A! O, }3 N X; ^ switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
a* z5 l, Q6 J- o( \/ S3 [ Gain” potentiometer [3] increases the gain by 8 dB.1 R$ ^' J# z6 M& J; D) ]
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
( H. S, Z- f: M/ m+ t4 R, n; T4 e[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
8 y# b4 n; f: a. _1 x3 q' d have more body; percussive instruments are less aggressive.
$ n; k! M+ H* R7 g, V The group delay behaviour due to AC coupling of the stages is different in& X% D$ o, |; q% A1 F0 O$ E9 ^
tube amplifiers. Y" p# h2 m8 T% m8 r
The “Bass Warmth” control allows to select the frequency range# u+ Z! r, W' i' R# `, U
(10...200 Hz) within which the effect is active.$ L8 { ~! ^5 b* W
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
' G. Q" m8 Q7 @ t" X$ p, S: H Valve amps have a characteristic response, mid-frequency harmonic content2 n' O# m$ R4 L: ^& ~: L' a
is emphasized.
4 J" O W" t6 H* G[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
+ C. D, s3 ~7 B4 q; ] The harmonics spectrum of a delicately overloaded valve amplifier is completely
y' I; Q3 U" u7 N" ] different from an overloaded transistor stage.
) _$ I& {( U Q0 r( R9 F$ s9 [ The “Gain” control adjusts a gentle overload while the odd-harmonics content' u; ~, h" j5 l3 Z$ C: E0 S
can be adjusted with the “Clip” control.
$ X, b7 f c+ V% q; F: u! w* n& Z[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
* d) S S/ ] T9 I, r dBu FS.' H8 E/ C! j; n1 S; C( Q1 h
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
" ~+ C0 }0 L F$ y" l desired channel.
1 w; F0 s( X6 L8 t+ l: ` The “VALVE” LED is on when the Valve Dignifier stage is active.* Q4 N- r r/ f: z9 _& n
[9] INSERT INSERT function.
# w, a5 }5 ?! S9 G+ n First key pressure: INSERT POST VALVE, the Insert Send is tapped after( l1 H! l6 S8 E. X$ B7 A
the valve stage (display: “INS”); the Insert Return is directly fed to the Line; |/ v# l$ f0 g) I- \
and AES/EBU outputs.
: t4 B J& [4 M" _6 N! k! i Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
/ M' J- x! \9 \' [" X G4 k the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
- S9 P1 c4 l% I the valve dignifier stage to the Line and AES/EBU outputs.
. f3 ^( ]7 u8 j/ K5 |: U Third pressure: INSERT OFF, the input signal is fed via the valve dignifier$ V& c9 B+ H$ }) ]- @3 G) I
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
% K1 m& i6 j- Z" O7 X receives this signal; display: none).0 x& s% ?" k, S& r: _1 j- D0 Q/ B
Insert Send and Insert Return are electronically balanced and equipped with
) h- r8 U/ {8 ?' G Z XLR connectors.) w0 B! S: ~# z" G/ b. Y
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or& j- g' A( a, ]1 Z8 t& Z
ADAT digital interfaces. Each input channel can be switched to one of the1 ]& w/ v; A# m+ {* g
channels 1...8 of the multichannel interface. If desired, also a mono mix is- b8 a4 W# ~. Y: G& r$ x
possible by selecting the same output channel for both input channels.
5 R% {% W2 z0 b; {* I[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
( v7 \ W; r* N1 k channel." B1 b. H& g- ]4 f' T
Can be operated only if the input gain selector is in Mic position. The7 S$ L8 _( ]; M/ ?8 G
setting remains stored when switching over to a line gain setting.7 ?+ q9 h: q8 H0 s! a1 b ?
[12] Activates the high pass filter on the microphone inputs of the desired channel.' b& T$ W8 V5 @( Y2 u
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
8 d& {: |5 q# x* \$ }% r; O Can be operated only if the input gain selector is in Mic position. The
* V0 d! {# I, O* _' @ setting remains stored when switching over to a line gain setting.
) R1 G, R& M4 ~8 [% _" o[13] Ø Toggle key to activate the phase reverse switch of the desired channel." v: \) |0 [# ?8 C
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
2 j5 }2 O4 u% n) I d% H “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with% s: `5 A7 q0 f9 y! i+ |
Noise Shaping (display: “16NS”) can be selected.3 o0 k7 a* C5 N" Y. b3 d1 ^* L* C, H
[15] SYNC Selects the synchronization source for the unit. Possible selections are:0 j7 j0 J4 b* P! O
INT 48 Internal quartz reference, 48 kHz
5 j5 M0 \ K& F( m8 F INT 44 Internal quartz reference, 44.1 kHz
" S% I: v7 P4 E# c/ l WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)) Q3 J9 u: H; Z& w
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)0 o% G1 \, N& t, H
AUTO Selects sources automatically in the sequence AES-WCLK-INT0 e, p; J4 d0 M) L; _
VAR Indication only, active if the external source frequency deviates from 48 or
; h3 p1 ?3 ]; @; o% N 44.1 kHz for more than approx. ±3 %.9 B: E, m) q9 c1 N. ^
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –/ P8 d- z; }9 w' l7 }
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
. Z5 {$ v! p, a3 a, s0 w# k. }6 F[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce; k2 t' A9 w# }$ x
the danger of overloading the A/D converter with short signal peaks (if
9 R ~7 t0 F; P3 P# `8 N active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,4 B3 F0 U: D2 n M# E
allowing for approx. 6 dB reserve before hard clipping occurs
9 [5 V6 [& k6 h ( q( z5 @: B: c% u( ?
6 Q9 E, i. e: D/ @
|
|