|

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
6 r4 i0 A; T2 @+ C$ [1 J8 \, L- y: q" v" O4 P$ y1 r
$ \+ O$ e1 z p0 z
英文电子说明书+ d- D3 c* L- }9 D
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory) ~6 ^, a6 n7 X& S7 [0 m/ ]: E
default settings. The subsequent settings remain stored in a Flash EPROM7 T$ U8 J7 ~( ~! a5 L( v9 i
after switching the unit off (unit contains no battery).
$ H7 f: M/ b+ j$ q' H[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
7 a4 p: R0 m+ X1 f/ q, h k between microphone and line sensitivity setting ranges.. f/ q& z5 |+ m) k! h+ `% _0 x
Mic: Range –40...+20 dBu! n1 S. R* l( ~
Line: Range +14 dBu, +24 dBu0 @' R8 e; I$ j& x
[3] Fine Gain Potentiometer for fine input sensitivity setting.* t# [1 H0 r# Y& Z( B
Range of additional gain: 0...+15 dB. A; j: [( y; n @& Y0 ?
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents. |2 h# I! K( {% R
the dBu value of an analog input signal which causes a full-scale output of
" U/ s; ]1 ?0 V f the A/D converter.! J+ X7 J3 y, M! T
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;" `: G$ G0 j$ B( u, X- H/ W" y
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
- p- F& ~5 p" o f, Q! T switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine) A. b0 c. P p& `! H0 k
Gain” potentiometer [3] increases the gain by 8 dB.
* G' l; @$ C- R$ _[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.- F0 q& @, o% Q7 I8 V# ^) E$ Z
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
3 c; d! T% `- x$ b! M% s have more body; percussive instruments are less aggressive.
' w, C- s, G3 W& ? The group delay behaviour due to AC coupling of the stages is different in
1 c3 n( q: Q1 }" b V tube amplifiers.
1 [5 S- w8 v% g5 I0 B7 k# V0 D# q The “Bass Warmth” control allows to select the frequency range
5 U4 p9 }5 n# V4 S: _ (10...200 Hz) within which the effect is active.
' G6 ~" L# O& y7 f4 t; C1 {[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.& Q: O' M8 A& y5 S3 T; ~4 t/ H
Valve amps have a characteristic response, mid-frequency harmonic content
9 }. y* n% E5 o& Z# e) D is emphasized.
/ Y& P1 C2 u2 B& K" W) s2 D# ^[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.$ e% `7 H2 ^* e3 T! b
The harmonics spectrum of a delicately overloaded valve amplifier is completely
; M7 N5 d H( ` different from an overloaded transistor stage.1 w" X# ]5 T. L. P4 w: A4 R. z& ~
The “Gain” control adjusts a gentle overload while the odd-harmonics content
) E7 a2 l! e$ Y6 r can be adjusted with the “Clip” control.
8 O) q& E* ?) R1 H* v[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...242 |- T: g: a7 Y! P+ U6 A6 i+ J% K% z0 y! ~
dBu FS.
' V. S& e; u; s[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the0 e/ l* I6 d3 A! T) w7 W& u* B( z
desired channel.
1 c' G" L. n' W" Z: P2 t The “VALVE” LED is on when the Valve Dignifier stage is active.% J2 B: g$ N8 G0 C
[9] INSERT INSERT function.) t2 e7 c/ R+ ?+ N! ]3 a+ w8 G, Y
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
# d3 m$ [8 H6 e" K7 u the valve stage (display: “INS”); the Insert Return is directly fed to the Line
" i0 @) U3 V3 N" x% G, d and AES/EBU outputs.9 z- v3 L w# E/ O! q, q2 M
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
& y' O! Q/ s0 `4 \ the valve stage (display: “INS” and “PRE”); the Insert Return is fed via/ \8 `4 _& ~: @" i
the valve dignifier stage to the Line and AES/EBU outputs.
3 ?$ ^/ i4 i. q3 x# ^ Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
$ A k8 \- k1 k ] stage (if active) to the Line and AES/EBU outputs (also the Insert Send output: G2 u8 q& H/ i7 E& b, Y! `- y
receives this signal; display: none).
6 w1 u+ A4 A6 T& w! g: {. B5 d8 q Insert Send and Insert Return are electronically balanced and equipped with
, P$ S3 G3 p- ~8 w/ N6 V9 A5 x' u D XLR connectors.3 M; S9 W) ~! W3 N9 T" ]
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or/ e+ O4 `+ G$ x/ L/ R
ADAT digital interfaces. Each input channel can be switched to one of the
' D, h8 [& o2 \3 G* O, x channels 1...8 of the multichannel interface. If desired, also a mono mix is: |! q$ o0 W/ I. {
possible by selecting the same output channel for both input channels.
# H4 v! L. @6 b# j }3 |% l# \+ A; Q: T6 E[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
" c: r. K+ p r& W channel.1 Z8 `3 R* A' i' @+ z$ H7 f- R
Can be operated only if the input gain selector is in Mic position. The
) s+ n4 G2 O2 h5 Z6 s setting remains stored when switching over to a line gain setting.
( [) Z- M) O W0 ?) b; J[12] Activates the high pass filter on the microphone inputs of the desired channel.
}, {6 t9 C8 d) f1 X Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
: F9 e9 l' |) S Can be operated only if the input gain selector is in Mic position. The2 l, ?! N/ _1 G; ^$ D4 [7 O
setting remains stored when switching over to a line gain setting./ v- X) A0 v* {1 h9 w& J1 _
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.5 c# f; a5 |7 q3 Z4 A
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:6 C1 c e# w) A6 `. d* l
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
! C+ ]4 Q D* ]: G Noise Shaping (display: “16NS”) can be selected.9 G3 P1 o3 i( N- z
[15] SYNC Selects the synchronization source for the unit. Possible selections are:$ V7 @6 n% f( \1 \; C _8 V
INT 48 Internal quartz reference, 48 kHz
' p5 t1 w0 Z$ B' z7 E( v INT 44 Internal quartz reference, 44.1 kHz
+ I' D/ w/ q& [, ~ WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
( l% X7 Q, x' P7 L+ W3 o7 ^ AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
( d7 I- l, c2 r AUTO Selects sources automatically in the sequence AES-WCLK-INT
2 m. J& m& }$ z- K4 k8 M$ `; r VAR Indication only, active if the external source frequency deviates from 48 or
3 q* i( H0 c* e" u. T 44.1 kHz for more than approx. ±3 %.
5 P4 J, ~" |: |6 w l[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –; C0 f$ v* X5 o% ]
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.# T1 J+ I' ?' x8 Z+ p1 t) K
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce+ D) \" G4 \0 ^6 _( q5 p; p$ c
the danger of overloading the A/D converter with short signal peaks (if1 I% L- p4 S; b* b* b4 s, E5 C4 w
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,5 T. e7 n# k# V. U
allowing for approx. 6 dB reserve before hard clipping occurs
5 o2 f; ]; C- z3 M
* X3 n- Y3 F' r; e6 y! _" W# ` # `5 `& {0 i. D1 s8 W
|
|