|
|

楼主 |
发表于 2012-5-20 00:04:04
|
显示全部楼层
本帖最后由 dan3963101 于 2012-5-20 00:12 编辑
% E- `* a, Q% K1 \$ S/ O2 E5 D7 V3 S4 r4 z7 ^8 C
英文电子说明书) D( k, Z7 ~' N
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory! f) q" z) _/ v! A6 ^- ?
default settings. The subsequent settings remain stored in a Flash EPROM; l2 R" x8 z6 Z+ j( {/ b
after switching the unit off (unit contains no battery).
& b9 `3 D, M& m4 \# h[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position$ f' h( ]/ z5 r7 Q; }
between microphone and line sensitivity setting ranges.
6 p8 u H( z, {8 o2 i Mic: Range –40...+20 dBu+ A3 {4 H! t% {1 Q! N2 Q. K4 \
Line: Range +14 dBu, +24 dBu
0 K" ^% S" L0 D, C o9 L[3] Fine Gain Potentiometer for fine input sensitivity setting.& ~+ z! F( w/ h( _, f" A5 _
Range of additional gain: 0...+15 dB.
& W# @8 n0 T" K$ W! Y Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
+ V2 }/ ]* }. v3 }9 B% M i' V; Q the dBu value of an analog input signal which causes a full-scale output of) u$ q. D& t7 s9 U) v. R4 T T. b7 c
the A/D converter.
& G, t0 Y# y+ c* z0 b% m) t Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;" ?, l: |! Z9 J2 n. i2 s
the peak level is therefore +16 dBu. The “Input dBu FS” rotary4 q1 [/ P2 Q! B* Z( g3 P% R2 C3 J
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
2 |/ @/ `2 i" x$ I. ?, a5 _ Gain” potentiometer [3] increases the gain by 8 dB.2 s; \, t, H0 r( v2 Y. c/ z, L) r
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
% M6 a" K4 K8 J% l[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
3 B0 x) g2 o; q% j# k5 G have more body; percussive instruments are less aggressive.
& Y2 `9 \. P- j) @- { The group delay behaviour due to AC coupling of the stages is different in. b! ^: t+ j/ ?# O3 }4 k
tube amplifiers.
, `! p) ]. W+ }# k5 i The “Bass Warmth” control allows to select the frequency range
' c1 {6 S2 u0 a" X8 l1 L# Y (10...200 Hz) within which the effect is active.
% u0 X2 t+ @- H4 }1 d$ ]- y' R[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
& ~! _8 @# h, o3 R2 ?' ` Valve amps have a characteristic response, mid-frequency harmonic content
! s0 \/ t2 t* k) I, E) F x* k2 \! _ is emphasized.
& [5 F6 e' N: m, R) v0 [" Q[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.7 j( Q; e/ X/ p! g+ S7 E
The harmonics spectrum of a delicately overloaded valve amplifier is completely; b( G' v) b! v; r) T% B) V5 r8 {" a
different from an overloaded transistor stage. d- I1 {# e0 ]/ q
The “Gain” control adjusts a gentle overload while the odd-harmonics content
" {& W) P4 w/ X! `' K0 t, u can be adjusted with the “Clip” control.
1 ~5 h0 J! i6 c( _3 v[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
( ^' Y5 `# N! }& g dBu FS.
0 w; _4 `8 S& S' L: _! p: ?[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
n' g5 C. ]9 I; ]% R desired channel.
) J/ a- Y" U0 o) f9 r8 M4 j( m The “VALVE” LED is on when the Valve Dignifier stage is active.6 Z( ~6 Z: o& n3 O& D( {4 _( X
[9] INSERT INSERT function.
* j: }2 @6 f" K5 b, m First key pressure: INSERT POST VALVE, the Insert Send is tapped after& z4 g; W- c" I) A$ S
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
- B1 J Q. E2 j4 g; P' ~ and AES/EBU outputs.7 L8 Q9 L# \8 Q! s" z
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
- S; b1 C& z* }. S: c: S the valve stage (display: “INS” and “PRE”); the Insert Return is fed via: y5 A/ t4 N, t5 g4 A0 G
the valve dignifier stage to the Line and AES/EBU outputs.2 v7 ~$ b7 J' V& P; U# a
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier8 O1 f" o6 w6 O# ~
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
% t) m# R8 q q4 b receives this signal; display: none).
9 w6 T& C3 n# M- o2 B Insert Send and Insert Return are electronically balanced and equipped with
7 |* h. U1 \/ n/ o( A XLR connectors.
7 C# e- E0 Y, C' q9 }# A& n9 t[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
1 {" B4 r4 G/ q. J. b ADAT digital interfaces. Each input channel can be switched to one of the
4 @" k/ A# @ e3 c k# ]1 K channels 1...8 of the multichannel interface. If desired, also a mono mix is! I$ ?4 f4 ~) m8 l7 @* i
possible by selecting the same output channel for both input channels.+ N6 ~/ n w. ]
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
S" ~5 p$ k; A5 J channel.6 h; t+ n( q& }/ j! V
Can be operated only if the input gain selector is in Mic position. The8 f% ~$ ]. ?6 g# U8 ~: s
setting remains stored when switching over to a line gain setting.
; S/ S5 @% U6 b+ L% F( z[12] Activates the high pass filter on the microphone inputs of the desired channel.% O5 C4 U* ]% c `6 O/ H# q' z
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
/ F+ ?" r3 h6 ]9 y( e Can be operated only if the input gain selector is in Mic position. The) F; t; \( s& t% _, m4 S
setting remains stored when switching over to a line gain setting.
! H2 [: {' e8 o1 P[13] Ø Toggle key to activate the phase reverse switch of the desired channel.' n; t) m! c9 f
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:# w# U# ^, P5 j5 P5 \& R1 x
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with2 w- j% v$ r+ N1 ^3 n
Noise Shaping (display: “16NS”) can be selected.# c* ` Q+ W# K/ k! ^3 I6 q
[15] SYNC Selects the synchronization source for the unit. Possible selections are:( G2 L3 ]# r; J" @
INT 48 Internal quartz reference, 48 kHz1 ?2 S; e* ]! G, `* A
INT 44 Internal quartz reference, 44.1 kHz4 A0 i) e$ R) ? q
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
5 u ]5 U8 P9 I/ Z9 E' _' D AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized): D7 K9 |5 a7 T5 f% y/ J% Y: c
AUTO Selects sources automatically in the sequence AES-WCLK-INT
3 a/ O, V- a/ D( O VAR Indication only, active if the external source frequency deviates from 48 or
0 w2 p8 M- r2 ]- k 44.1 kHz for more than approx. ±3 %.
. r9 n2 h" J. G! q- I[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
2 {: U& I) V7 K; n( Q& D either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.& I( K5 c Q" d. h- j' {; `6 P+ b
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
! d, y Q7 W) r9 R1 F# J. z4 Q& V, N the danger of overloading the A/D converter with short signal peaks (if0 N3 Q; I& _- U/ k
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,) z! ?" U7 Y. {, J
allowing for approx. 6 dB reserve before hard clipping occurs
0 [3 V; Q2 Z9 n) b & Z n5 N9 }. r# ?- u4 k" O) v+ x
|
|