|
|

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 d8 A; s& d& q+ v1 C. X
* W# e) S* D, h6 ]0 W# W英文电子说明书
/ }) i) M( g% d* w[1] POWER Switches the unit on or off. The unit is ready to operate with the factory D2 x* @' J9 \2 J0 `7 k- m
default settings. The subsequent settings remain stored in a Flash EPROM( Z# P& \! a, Q, S6 e! u1 B) o! ^
after switching the unit off (unit contains no battery).
/ }6 g% I. g/ F[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position) l8 H" h' |* ^) Z
between microphone and line sensitivity setting ranges.9 z. [" Y/ W% Z" n) i0 s* [
Mic: Range –40...+20 dBu
p( B# L; b+ q" Y, k: c Line: Range +14 dBu, +24 dBu5 M" M+ ?$ y' q
[3] Fine Gain Potentiometer for fine input sensitivity setting." L1 \1 s7 b) V7 a! u
Range of additional gain: 0...+15 dB.) G9 [& R, v/ T2 C; a3 h
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
+ @$ D; K, _6 \% p4 l the dBu value of an analog input signal which causes a full-scale output of
" _" b+ G0 a6 w% F8 l the A/D converter.
# w& C0 H K; x Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;2 c1 o# w- s8 ]8 T5 t4 ~
the peak level is therefore +16 dBu. The “Input dBu FS” rotary+ B7 E5 q+ q2 K4 t2 ]
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
4 V5 L$ ~. o5 M# _$ G5 T4 c/ U Gain” potentiometer [3] increases the gain by 8 dB.# q& S: v* I& ?
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
5 T9 H8 e; J/ |8 N/ E[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
7 t4 I& K7 B1 H, Q! W( O' G8 {" F% k have more body; percussive instruments are less aggressive.7 W" T" I3 \2 q% _0 P9 a
The group delay behaviour due to AC coupling of the stages is different in
) ^$ D% p9 V: ^8 @: e9 |* B tube amplifiers.
+ v) M* u P+ p! V1 k4 r The “Bass Warmth” control allows to select the frequency range+ R# x. Q+ C9 R& q' l+ k
(10...200 Hz) within which the effect is active.
& h) Q- T8 O" }' Y0 c5 t6 V( F& [; ][5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
) N% B% r! H! M: R- j% d Valve amps have a characteristic response, mid-frequency harmonic content
$ W! [8 D8 U; s0 `) t# Y. \, E is emphasized.
; q& V* u: b. q; R: p- @1 y[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
& [: Q2 S5 w$ n% u p7 c g The harmonics spectrum of a delicately overloaded valve amplifier is completely2 N" h( I U$ B1 D
different from an overloaded transistor stage.1 {; Q" ^" t) A9 p! s
The “Gain” control adjusts a gentle overload while the odd-harmonics content
0 ?4 k @" b4 B* U can be adjusted with the “Clip” control.
- q/ ~/ @( {: q: K7 s, ]9 \[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
( V% Z+ T. G* ~1 \- q; r0 i* q dBu FS.. e: h# x- N% ~7 k6 d. x5 j z) R- J
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the \% }2 X1 a- J, C+ M" K
desired channel.
$ G2 H- H2 h/ C7 [ The “VALVE” LED is on when the Valve Dignifier stage is active.
; s5 S3 w: \' A# a* i3 g$ m. D[9] INSERT INSERT function.
0 x; @- E: z2 W* P1 F+ {* U0 m First key pressure: INSERT POST VALVE, the Insert Send is tapped after5 p, u" v$ Y/ X6 r
the valve stage (display: “INS”); the Insert Return is directly fed to the Line, P, B2 h4 C5 \+ V; d' b- Z
and AES/EBU outputs.
# k4 D+ j2 ~( O5 W7 h Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before% x5 x6 Z: X7 h) ^
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via U F+ o+ n4 o/ S& x, Z
the valve dignifier stage to the Line and AES/EBU outputs.6 Z, d, K4 g) b. Z3 I4 z S& u! T# R
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier' H: _" T: A" M- D. K% Y4 B* s
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output/ M1 Y2 W K! ]8 i
receives this signal; display: none).* f) l$ k3 q# }
Insert Send and Insert Return are electronically balanced and equipped with
1 D. M! A3 \- v/ y XLR connectors.
( p2 [' W0 G$ I9 M7 w4 x9 ^[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or; T' T T. \- o; U
ADAT digital interfaces. Each input channel can be switched to one of the9 y: X |) h/ R* J: K1 J# F% k* I, ^
channels 1...8 of the multichannel interface. If desired, also a mono mix is! G% G6 R7 V$ t- j& h4 V8 X
possible by selecting the same output channel for both input channels.+ O' {( ]' C8 r/ a" g% w
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
: j' V5 q, V/ C: @4 I. p" y, [ channel.
! B1 b+ L$ S6 J( Q! Q7 |- F$ c Can be operated only if the input gain selector is in Mic position. The
( Z) g N& }/ g$ M0 R, v* L5 e4 T setting remains stored when switching over to a line gain setting.
2 [+ n# u6 e2 p3 h. y! [[12] Activates the high pass filter on the microphone inputs of the desired channel.
4 R- Q! r: s. m! n7 @ Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.! c6 W0 c1 ]* W" a4 i/ z9 j
Can be operated only if the input gain selector is in Mic position. The/ z' Z; B6 w- L2 N# o
setting remains stored when switching over to a line gain setting.9 C+ C9 k& \# w; y! q
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.% @3 u) j, {" I
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
9 x5 F# m: m8 n “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with% u' G; s9 u+ z+ |
Noise Shaping (display: “16NS”) can be selected.3 }4 F# a- d- J! a8 G; V, Q
[15] SYNC Selects the synchronization source for the unit. Possible selections are:) S/ t5 B* f) l- t! j# g
INT 48 Internal quartz reference, 48 kHz* F. d @3 S6 ^6 g) Q
INT 44 Internal quartz reference, 44.1 kHz
' p" }& H/ c; B: J WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
4 U* \: m9 y0 I# S, T AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)* N* p7 A& L1 X7 {1 ]
AUTO Selects sources automatically in the sequence AES-WCLK-INT l6 q8 N# O2 x, q2 w* X) y
VAR Indication only, active if the external source frequency deviates from 48 or7 b: Q. l4 S& x L8 T+ _
44.1 kHz for more than approx. ±3 %.2 k& w4 m$ w/ B4 B6 B
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
& b2 t- L4 u6 T3 R% K" j either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
* T4 W, |5 N2 {/ B1 _1 b[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce: z9 q7 p. g: P
the danger of overloading the A/D converter with short signal peaks (if4 \5 T/ C# R' Q; J
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,# V6 k! [. k( v& c. w/ x. Z6 T
allowing for approx. 6 dB reserve before hard clipping occurs
0 L8 r; K3 h5 S% P
7 }7 ]5 n/ v7 z+ D! k |
|