|
|

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 ( b5 z0 v# M* p1 N A
# f; n, _1 Z' w6 k$ m7 r& k, G# W
8 j7 B0 I! @' b9 ]/ J8 w- c英文电子说明书: W' Q; U( d) ^% x$ b2 a; x) ^
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
3 ?8 M( Z9 q* ?7 O( d; W# K default settings. The subsequent settings remain stored in a Flash EPROM! h. u( w! u3 {# z0 a- Z4 u1 a- [7 s
after switching the unit off (unit contains no battery).
) z! O4 u7 E4 v% S- O[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position' t+ T/ i$ ~4 S1 m9 Z' Y
between microphone and line sensitivity setting ranges.7 X F4 t: H& d! h- N
Mic: Range –40...+20 dBu
, b! O2 D ]* f' {( }4 n1 V: g+ w Line: Range +14 dBu, +24 dBu
1 D* Z, j* ~6 ]: p- s0 J7 }7 K/ I[3] Fine Gain Potentiometer for fine input sensitivity setting.
* i' x+ z4 T! ?/ o* D0 _1 n4 [ w Range of additional gain: 0...+15 dB.
4 R6 Q0 y5 W6 U Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents8 x" _9 c1 M* b. F2 g# T
the dBu value of an analog input signal which causes a full-scale output of
; N- P: K# g: K5 S1 D the A/D converter.0 k- p* r* V! V
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;6 R* D! \* y5 S0 w* p
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
8 {; v/ }' i$ G9 B$ Q1 v' Y. T switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
2 d2 z/ M7 O7 _! W Gain” potentiometer [3] increases the gain by 8 dB.4 e1 P3 L6 ]5 ]/ d6 U {
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
4 V+ x/ ~# O5 a- ^5 K[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals+ E3 K2 h0 v! x6 b; U, H' @
have more body; percussive instruments are less aggressive." S% C6 T. v4 D% T: f
The group delay behaviour due to AC coupling of the stages is different in
0 C. R0 y9 c9 `1 m* G tube amplifiers.+ \4 k3 d5 ]3 h' _6 f4 y
The “Bass Warmth” control allows to select the frequency range) O6 q5 ^ i% ]- }' K. c7 A i" v
(10...200 Hz) within which the effect is active.
4 S8 u$ N# g5 q- x; C/ q[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.: a) g* C. F: g2 C
Valve amps have a characteristic response, mid-frequency harmonic content7 ^ Q; D3 t4 B% ~4 G
is emphasized.7 Y" c V, S% U" ?4 t6 g
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.2 r$ I' G7 ~ ^0 A3 q8 L
The harmonics spectrum of a delicately overloaded valve amplifier is completely
0 F" }) R% u- I% F. i: Y+ Q+ o different from an overloaded transistor stage.- k; M$ q$ Q' F* H+ h
The “Gain” control adjusts a gentle overload while the odd-harmonics content
7 b. F8 u) n% \! T can be adjusted with the “Clip” control.
/ G1 B, g5 k: T- ?* T! L[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
1 [/ j- J7 r! V$ f. Q" L j dBu FS.2 z& ]3 |8 m9 g6 V( I4 s
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the( B& b* @ \. O' J. E& O
desired channel.
2 |2 C) B4 o6 P# r% U, K The “VALVE” LED is on when the Valve Dignifier stage is active.
$ s# j5 ]; g: C9 v5 a" F[9] INSERT INSERT function.+ j+ i, A3 t c: j R
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
! j, @, Q! s& H* n the valve stage (display: “INS”); the Insert Return is directly fed to the Line5 r: } x. J* c( a
and AES/EBU outputs.
( m/ ~2 f' L: g. o6 a2 ^ Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
* k2 l2 o# l& p8 f) z. f% c8 B8 q the valve stage (display: “INS” and “PRE”); the Insert Return is fed via) D6 i' o% G0 R D1 C9 p/ v+ ]5 S
the valve dignifier stage to the Line and AES/EBU outputs.
1 Z' {- C1 {$ d0 m5 N" P" g* a Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
( A2 _: I+ E0 J; C+ \ stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
" }9 A f* ?/ v; T7 g receives this signal; display: none).1 J$ L9 q/ p' j+ [; y! t
Insert Send and Insert Return are electronically balanced and equipped with5 s% w9 t3 r! G, ^ a) G
XLR connectors.
4 F; E- k$ \, P0 t0 l% }" O: n. A[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
8 z' [. j3 V- G) k$ U/ R# F ADAT digital interfaces. Each input channel can be switched to one of the' n9 Y. v$ ~& {! g* u
channels 1...8 of the multichannel interface. If desired, also a mono mix is, p' O. D8 `+ B0 ^1 Y" a
possible by selecting the same output channel for both input channels. y* Q, ?6 `8 E# W
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
/ S4 w9 y2 O8 N/ T channel.
% f, A$ N/ t4 p0 N8 k! e% D. a Can be operated only if the input gain selector is in Mic position. The
_, T$ z/ C3 y0 a Z( W2 u2 ~ setting remains stored when switching over to a line gain setting.
: M, J- u8 J1 m7 x) a' S[12] Activates the high pass filter on the microphone inputs of the desired channel.4 h4 e7 z9 q' j1 B1 C3 y+ B
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.4 Q( _% k' N6 D: W' V% {
Can be operated only if the input gain selector is in Mic position. The6 c5 s; F& L4 Y
setting remains stored when switching over to a line gain setting.
# y4 F- d6 C( s[13] Ø Toggle key to activate the phase reverse switch of the desired channel.6 i3 g0 [2 z# q% ?# i; P# _! G
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:8 ?! u. ]) M9 c4 \- ]
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
. R: O# ^' q, S' f, c Noise Shaping (display: “16NS”) can be selected.5 {; V( C5 @3 h) T0 c+ w
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
: S( l% k! M& Z y" l INT 48 Internal quartz reference, 48 kHz
7 z) ~0 n! l% S, Y" z6 B INT 44 Internal quartz reference, 44.1 kHz4 r; `- K7 t+ C* K0 P. i1 N+ @( E' Y
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
- o- P- n! _! }2 L) s! `, R AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
4 Q* G+ N3 E5 [" ? AUTO Selects sources automatically in the sequence AES-WCLK-INT- H5 I) C, V; l: K' H$ D/ l
VAR Indication only, active if the external source frequency deviates from 48 or, w: {4 N; x& w A# b2 c# d
44.1 kHz for more than approx. ±3 %.6 |7 I0 o6 B3 n' O( \# p5 `
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –: j7 E0 Y( J+ ?1 {
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s./ s2 N$ }1 H& M6 \; s. a$ L* @
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
! Y5 }! \* W2 u the danger of overloading the A/D converter with short signal peaks (if
# m M* C& A" \- z: ] active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
; o& @- g5 O8 X C$ ` allowing for approx. 6 dB reserve before hard clipping occurs) B) a% A+ U$ P5 }9 ]9 e6 B$ c" O3 D
9 W7 i' I! e9 {4 H: q
7 n. v" m5 t b( c5 X' o& ~ |
|