|
|

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
4 ]: R- ?" R; J: r( z+ P+ i; A( w
; l, x& B8 V( Y英文电子说明书2 d$ g- j1 J: B' H0 y' C4 K( v
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
1 w$ a) U; c" R! M, Q1 @* X default settings. The subsequent settings remain stored in a Flash EPROM: |1 \+ l- U% l8 U1 b
after switching the unit off (unit contains no battery).) ^5 ~% |# B" j% [# i( `5 |" I
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
9 t% G8 W, C- G between microphone and line sensitivity setting ranges.5 A m3 I) `# ?2 M5 q
Mic: Range –40...+20 dBu
3 b1 M9 `% z+ \ Line: Range +14 dBu, +24 dBu
) d4 X$ T9 b/ h% q2 _, c2 X1 s% R+ m; L[3] Fine Gain Potentiometer for fine input sensitivity setting.9 ~7 Y2 F+ {8 ?: e* j$ A j3 H
Range of additional gain: 0...+15 dB.( J9 F+ f9 K5 `
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
4 H" o, k2 H9 `5 i the dBu value of an analog input signal which causes a full-scale output of0 D1 R/ e( ]3 t
the A/D converter.
0 k! Y! Y. n( ]- }) z5 b$ | Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;( p# X# S. M9 p0 R9 X
the peak level is therefore +16 dBu. The “Input dBu FS” rotary& u1 F& J; F: e7 h8 r9 {
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
/ z+ }$ i* l0 n2 X0 K8 n Gain” potentiometer [3] increases the gain by 8 dB.7 C( K/ g1 E' J$ z$ v9 x+ G h# d
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
( {6 Y% c+ M8 @4 s! V/ {3 U8 _# o[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
1 D. z) P4 v2 f+ N have more body; percussive instruments are less aggressive.
* J1 f3 w- b; ~; r: C The group delay behaviour due to AC coupling of the stages is different in
; g4 p" b4 R% L* n: C tube amplifiers.
- A6 @& J8 e! U0 [. E The “Bass Warmth” control allows to select the frequency range
$ E) C3 U: H& O1 a& o+ q (10...200 Hz) within which the effect is active.) @3 c# d0 U3 _3 r+ a6 S0 U/ b6 i
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments." Q# s7 g4 D( g+ @! m) U+ f
Valve amps have a characteristic response, mid-frequency harmonic content
( K' i% T* [& \+ L is emphasized.
5 B# u. C& s+ G[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
/ F7 Y: F' I/ R2 j The harmonics spectrum of a delicately overloaded valve amplifier is completely
1 R8 y' d i& }7 C# B1 b different from an overloaded transistor stage.
' T" z7 W! d) R4 \: j2 ~/ g9 g3 E4 ] The “Gain” control adjusts a gentle overload while the odd-harmonics content5 D; [9 E' R: W/ G0 Y& o1 {
can be adjusted with the “Clip” control.
4 T/ S% n7 \8 l8 Y; ^[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
) e/ S! r0 U! m3 F dBu FS.
5 @9 W& k& r! } W% ~; c[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the2 J; q n% s. ]) F
desired channel.
6 m' `( ]- i) G+ K# V' w0 g The “VALVE” LED is on when the Valve Dignifier stage is active.
3 J% c' {2 z y$ P[9] INSERT INSERT function.
! L2 u* Y/ \% \/ k First key pressure: INSERT POST VALVE, the Insert Send is tapped after
9 h0 D1 D+ I4 D# t/ \! l the valve stage (display: “INS”); the Insert Return is directly fed to the Line
6 A# ]$ O6 I: _* K6 J( ~ and AES/EBU outputs.0 Z2 g1 L7 u3 J W
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before y, Y/ [/ p* Q$ I) n. {
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
4 c( o6 k# U% u4 @& }2 C the valve dignifier stage to the Line and AES/EBU outputs.
( w/ C. ?0 s2 e: m- T# b3 ~9 V3 K0 O Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
- ~8 {7 F* R8 M( v stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
0 P6 @( L6 ]$ k7 i4 k0 F receives this signal; display: none).8 z5 Z) ]9 h/ g" p" ^9 q4 e$ S
Insert Send and Insert Return are electronically balanced and equipped with+ _# P- P: h' Y8 b5 {0 }: ?
XLR connectors.
. x/ m) T. ^% }! s3 j4 w[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or5 Y7 V d& T( O M3 L5 |0 V) W9 n
ADAT digital interfaces. Each input channel can be switched to one of the) q+ f2 ?# _5 g+ M- s1 t# G
channels 1...8 of the multichannel interface. If desired, also a mono mix is
3 X, M7 @: \ z5 B* x8 F; D possible by selecting the same output channel for both input channels.: ]/ L' W1 _6 O/ b$ Y: m* H
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
: I, v) b. O9 S/ O( v# a channel.
; A" M2 f3 L& c# J) S4 m Can be operated only if the input gain selector is in Mic position. The
|2 j' H( B% r9 X1 s7 I setting remains stored when switching over to a line gain setting.
7 P2 s) L& L0 v1 E$ H[12] Activates the high pass filter on the microphone inputs of the desired channel.
7 V' P2 ^3 S/ i; [8 C Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.8 u6 m$ F9 h# x: X
Can be operated only if the input gain selector is in Mic position. The1 \( G" v# f& a/ [
setting remains stored when switching over to a line gain setting.
% H/ N/ W5 k/ H2 U4 F" Z/ H6 M[13] Ø Toggle key to activate the phase reverse switch of the desired channel." P5 s* s* e. l" F" v
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:0 b( [8 ^$ A3 p" e5 D0 P v
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
* K/ N- k' X. B) L) m: b Noise Shaping (display: “16NS”) can be selected." ~- a, O0 Q" B' p
[15] SYNC Selects the synchronization source for the unit. Possible selections are:2 T* p$ S" J: ^# \9 ^. r/ X
INT 48 Internal quartz reference, 48 kHz% h8 `3 m; l4 z! F3 |5 K6 T" t, |
INT 44 Internal quartz reference, 44.1 kHz
# a6 c1 E% S6 ] B) }3 ^ WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)! c* ?4 B0 Z7 v; p3 }: H6 }
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)- t0 q9 q7 f8 C9 C `' i# \6 K# X
AUTO Selects sources automatically in the sequence AES-WCLK-INT
8 _4 X- s3 G% O1 g/ z1 O u VAR Indication only, active if the external source frequency deviates from 48 or) m0 w% T0 _2 f+ k5 ? j
44.1 kHz for more than approx. ±3 %.% x. D, J5 J5 B8 @& s- T
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –% H* p! F! Z4 Z; f, ]5 H& P+ W
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.6 u0 `( A/ h6 @, }
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce& L+ n+ |2 O% H. M; \4 G" {$ w
the danger of overloading the A/D converter with short signal peaks (if3 P: b$ i2 U4 r3 A4 o' R; H, r/ R1 ?
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,9 E1 C- P" S+ c$ S
allowing for approx. 6 dB reserve before hard clipping occurs( q0 W+ W1 g, z* z2 `% S
# W9 o0 D0 _" T: [0 E% B " h. c$ d( |5 E
|
|