|
|

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
9 w! Q m% k9 F
% N- q, A% L, J( h
4 y8 y7 ]1 r: X英文电子说明书* x# k+ p3 m: Q0 w* @/ x w# Z+ a3 [( Z
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
+ u% _" {' k; {9 T/ J default settings. The subsequent settings remain stored in a Flash EPROM$ K( m& N' a+ _9 l% u% y
after switching the unit off (unit contains no battery).
( R# J0 { p q7 l; H[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position* Z, e5 n* h! ^5 H/ |" |/ x
between microphone and line sensitivity setting ranges.$ {9 ^# v6 ~. ]& \0 W
Mic: Range –40...+20 dBu8 e( n0 O+ f+ X7 s8 J. s
Line: Range +14 dBu, +24 dBu5 Q1 u% d3 Y/ ?3 |" x$ J/ @) |, v
[3] Fine Gain Potentiometer for fine input sensitivity setting.
, ~3 v% f2 l1 }$ D Range of additional gain: 0...+15 dB.; S5 P% a" T* ~! [1 w& ~+ p
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
4 V+ v z% u" k5 H m' o the dBu value of an analog input signal which causes a full-scale output of& G: c9 Z6 p$ I( w- s* ]3 _
the A/D converter.) o {2 P1 g0 N
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;$ w- H6 i/ u+ g& {
the peak level is therefore +16 dBu. The “Input dBu FS” rotary* B& H' u. [7 `7 ^# p
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine9 X9 l }0 O% j5 B
Gain” potentiometer [3] increases the gain by 8 dB.. } i) z; E0 V: d4 g. m# q2 u5 x
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
) n" T! B/ g) e[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals0 p' K) M& i `8 w/ [) S V
have more body; percussive instruments are less aggressive.$ q- V h; E- E$ M4 P
The group delay behaviour due to AC coupling of the stages is different in) V; H# w- K: h d, s% A2 P0 z, @
tube amplifiers.& q- H6 |) l i& H
The “Bass Warmth” control allows to select the frequency range% W( x [ q( ]) c1 W& x' F
(10...200 Hz) within which the effect is active.
. L$ t2 ?8 p: \7 b- u9 \' j( K0 L[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.7 y& U$ ]8 y& n T
Valve amps have a characteristic response, mid-frequency harmonic content
3 W7 N* U' j& Y& W: f! @- s is emphasized.
' `& A# R% ]8 `. O9 y# c[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
* V0 W" L( ]% j5 U- S The harmonics spectrum of a delicately overloaded valve amplifier is completely
1 I, Y5 s: k- ]0 e) j0 d% l& j different from an overloaded transistor stage.+ I! s2 s: o f: g
The “Gain” control adjusts a gentle overload while the odd-harmonics content9 H) n2 S- B6 m0 \. N. F
can be adjusted with the “Clip” control.1 C1 r& y9 B$ V) j6 @6 K5 y$ A( K: C
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24* X. W) m( X1 ]$ ~0 U, |
dBu FS.
7 o# Z6 C' [, o) N d[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
; i& s, A, I' R! K) U desired channel.
* _8 ~) f' T) n, K The “VALVE” LED is on when the Valve Dignifier stage is active.! u+ N0 l R# l7 X
[9] INSERT INSERT function.
9 p2 f/ H3 o& `) x2 [ First key pressure: INSERT POST VALVE, the Insert Send is tapped after
" v" K5 {1 _% _% [: t4 M the valve stage (display: “INS”); the Insert Return is directly fed to the Line
) O; n6 _7 M9 L* ?1 a' u and AES/EBU outputs.( ~) E6 r4 N* T* W6 n2 x5 y7 H
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
" A- J) j* i1 ?7 J8 t the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
" x! k( p q X" X+ j4 ~ the valve dignifier stage to the Line and AES/EBU outputs.
* W$ ~, ^" G& ]% s Third pressure: INSERT OFF, the input signal is fed via the valve dignifier' w) q0 p1 u- c8 }5 n0 A) \
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output' I( e' N! A# x/ \4 J
receives this signal; display: none).3 Q4 D" j6 m, X
Insert Send and Insert Return are electronically balanced and equipped with, l% @2 s0 ^) E( |' y5 G8 H+ u+ w2 _
XLR connectors./ A" M8 v" m J% G v: F
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or, u. x7 ~5 Q* k- p8 F
ADAT digital interfaces. Each input channel can be switched to one of the
* e: L, s2 Y. B9 N' @7 ~+ ] channels 1...8 of the multichannel interface. If desired, also a mono mix is
q+ S6 [4 e3 A possible by selecting the same output channel for both input channels.
( M* i) ~8 {6 U4 K[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone7 u% o4 |- P$ ^3 d# I' ?
channel.9 T: U' x8 q% p- v5 x! K1 U0 q
Can be operated only if the input gain selector is in Mic position. The
7 H" L" M$ P' c3 V- K# W setting remains stored when switching over to a line gain setting.
, n. O- E2 d# Q. B* u9 W1 y[12] Activates the high pass filter on the microphone inputs of the desired channel.
+ p/ }8 r( A o, G3 F Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.' D8 u2 u, p2 ~$ n+ S
Can be operated only if the input gain selector is in Mic position. The
# h. O* r* B9 U$ d) D setting remains stored when switching over to a line gain setting.
6 U/ H3 a# V/ a! Z. ^! a; P[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
. b- T; n* s$ O1 [. b5 q* \[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:' F3 T" F; c2 c5 ^% _- k l
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
( c# ~0 s' q$ @ Noise Shaping (display: “16NS”) can be selected.
5 E* D* p" K; \$ @" }2 |; k[15] SYNC Selects the synchronization source for the unit. Possible selections are:0 K4 p2 I; }1 u2 F% `: A9 m, W
INT 48 Internal quartz reference, 48 kHz
! b. A! p& X5 n2 i% U5 | INT 44 Internal quartz reference, 44.1 kHz
" U. G6 T$ q. l( E5 u WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized), H' l( b' v8 d5 T- P
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
2 M; j7 @2 i. b; E1 \8 I" ?7 E AUTO Selects sources automatically in the sequence AES-WCLK-INT
8 O6 Z! [6 m5 H4 B5 [6 O$ T( K VAR Indication only, active if the external source frequency deviates from 48 or* w- W" }1 Y$ s; v
44.1 kHz for more than approx. ±3 %.4 G+ v) T* x" q5 a7 C
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
; m3 Y7 I) P3 P, i either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.9 i& `2 A* a; q$ Z0 Q) m
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
" L$ S/ h% W8 V/ U* w t' {0 v) ` the danger of overloading the A/D converter with short signal peaks (if
: }, M. Q- M- v6 J active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,6 @! P; I- B6 q
allowing for approx. 6 dB reserve before hard clipping occurs. W3 F! L! R' s0 v
% K' u" @ H! h : d2 ?9 I( m! a2 u6 l3 i
|
|