|
|

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 : X" f8 S5 H- r8 J4 [
: ]! A/ a: s4 |7 _2 b z% ]1 T
H% h9 j4 h" I. B) w7 x! F' _
英文电子说明书3 O. g. |+ e9 T/ b3 l
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
, T4 H9 v+ L" ^ O( F/ U( S default settings. The subsequent settings remain stored in a Flash EPROM
0 D- S7 V( x( M8 o8 H& f: p3 N after switching the unit off (unit contains no battery).$ N' r& X% \" Z, y8 b5 p
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
" o4 o+ U- \0 [. g+ n3 H+ L between microphone and line sensitivity setting ranges.
7 `' Y* i! L! B# j4 b( O$ j+ H Mic: Range –40...+20 dBu
4 x ?5 b/ x; I2 H% g- B* f Line: Range +14 dBu, +24 dBu& X6 y7 [' F( t h& ?2 Z! [
[3] Fine Gain Potentiometer for fine input sensitivity setting.) R0 `1 H; E% }5 U
Range of additional gain: 0...+15 dB.# ~" w+ r& z) O6 S
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
# Z Y6 m# Q X9 L the dBu value of an analog input signal which causes a full-scale output of3 M) s' w( j: L/ n p- v, ?
the A/D converter.. y+ k' t! E4 l( }2 o! }0 D: W- u
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
: U3 z5 @# k" @ Q the peak level is therefore +16 dBu. The “Input dBu FS” rotary
! i- {0 ]/ m' N/ L& S switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine4 A2 L5 |( G8 \
Gain” potentiometer [3] increases the gain by 8 dB.& H2 J! q" m5 G
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
& v* D$ g4 b" K& U+ R, [: @[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
0 r' b( {# q6 P2 O% O have more body; percussive instruments are less aggressive.
" ], f' t1 ^3 j2 ]% p The group delay behaviour due to AC coupling of the stages is different in
- G* E( G( d: F2 f, A" i tube amplifiers.. ], h" t, E% C$ k& u( L
The “Bass Warmth” control allows to select the frequency range J* b! }; U7 k; ], ]& q* @1 x& m
(10...200 Hz) within which the effect is active.
+ m8 l6 W- q5 }3 R6 H/ }% ~[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.+ t# o, | }4 }5 O' B
Valve amps have a characteristic response, mid-frequency harmonic content- X" _. @ L1 r, ^9 x" k! T) m
is emphasized.
|2 p. L: w2 Y[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
, b1 Z1 p' m& }9 d The harmonics spectrum of a delicately overloaded valve amplifier is completely p, e7 ]4 n5 R$ I( V3 x: d
different from an overloaded transistor stage.
* D% f2 a$ Q: R* i0 H The “Gain” control adjusts a gentle overload while the odd-harmonics content
$ L4 A% \; \2 _5 y can be adjusted with the “Clip” control.1 r! t8 `. M. K' C& O& p9 Y) \% o
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...244 g5 K7 m+ N* R8 }0 S
dBu FS.
1 I' ]7 u D, g8 R3 h[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
+ {9 K) _% r3 c% l* M) @ desired channel.
! L3 i& B/ f; ?# N( v The “VALVE” LED is on when the Valve Dignifier stage is active.: Z/ Z5 G X+ l- t
[9] INSERT INSERT function./ H5 Q1 @8 T' Z) ~: r
First key pressure: INSERT POST VALVE, the Insert Send is tapped after- ^ W" A+ O1 b# R
the valve stage (display: “INS”); the Insert Return is directly fed to the Line% ?) S, g0 {- I
and AES/EBU outputs.9 s0 Z2 d2 q" q/ |8 m% M! J5 _, _: S
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
. u) a2 C& \8 L, a3 y! N; _ the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
$ s* g) w/ v+ M* l( n$ ?% _" z' Q% n the valve dignifier stage to the Line and AES/EBU outputs.% Z7 |# M" S5 O$ d4 P
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier6 Z$ J; y# N$ s( w, y
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output$ r! `4 T* u( J2 T2 N$ k, s" I
receives this signal; display: none).
/ B. {$ j8 ?( `! M7 i9 j& x& Z0 y- Y. N Insert Send and Insert Return are electronically balanced and equipped with1 M s2 N9 Y" E
XLR connectors.# |+ U; _( h6 R5 [' a9 C5 u# P
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
! @; V0 n6 {/ {3 x ADAT digital interfaces. Each input channel can be switched to one of the" S! b: J3 z8 d8 C6 V! W5 Y
channels 1...8 of the multichannel interface. If desired, also a mono mix is
" a; p4 u/ [+ O+ ] possible by selecting the same output channel for both input channels.0 Q3 y5 x6 O$ T* |
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
' Z+ a$ m7 l. C6 q9 t Y6 k channel.: c3 M& A9 y/ \/ B/ y" o* u
Can be operated only if the input gain selector is in Mic position. The
: a1 S( N3 k7 a4 w setting remains stored when switching over to a line gain setting.
0 O! s6 o) Y, m5 I, G2 ^[12] Activates the high pass filter on the microphone inputs of the desired channel.
6 R2 B( h' {+ J3 f3 E$ @ Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
; f0 \) P. e; v! ? Can be operated only if the input gain selector is in Mic position. The ], [: @' C9 a
setting remains stored when switching over to a line gain setting.6 U- W, m; h" z- A8 e$ x
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.- D& ~. f9 R* [4 D
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
( D1 i1 y0 A' q) k0 z “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with# {7 X6 p0 L# X1 k* c: D
Noise Shaping (display: “16NS”) can be selected.
/ y; \; B6 N h' U8 T# Z: ]& ^[15] SYNC Selects the synchronization source for the unit. Possible selections are:6 N" k* a6 j3 x" \0 j* k8 ?' V
INT 48 Internal quartz reference, 48 kHz
% y8 p9 @& N/ ], {! P+ G* h u INT 44 Internal quartz reference, 44.1 kHz
! z' F0 n; _+ k3 \ WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized); O9 V6 r/ b3 J; c$ @
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)2 W6 A, D% i' b1 T, k' ]' ~
AUTO Selects sources automatically in the sequence AES-WCLK-INT# i& c3 A4 c4 W9 |; i4 s
VAR Indication only, active if the external source frequency deviates from 48 or
; r/ ~5 J1 H- G% q# b 44.1 kHz for more than approx. ±3 %.
( Q7 |2 i# a1 Z' c+ N[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
2 k- Q+ B* L5 u# h3 O! E# e either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.* @1 d, ?9 I3 ^; ?: G
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce; e/ E! Z$ |, O w3 M: S% N4 k
the danger of overloading the A/D converter with short signal peaks (if
" {" \& I. y5 x- k- y active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,& n( Z- L# u, S# X0 o. U0 t
allowing for approx. 6 dB reserve before hard clipping occurs( k1 Z% Q& H, V3 e
% Y5 f6 i, r! i% j: m+ c3 Q
$ ] V8 Y0 w' {/ U7 G, L2 T
|
|