|
|

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
3 S9 G5 O/ j3 Y7 S) I: N8 x
# G2 [: q0 e9 Y" @" A9 G0 Y7 b3 {, ]. q- g2 v
英文电子说明书
5 ]. `8 K0 e: `3 J[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
' m' }; u' R! {% E8 j- ]- s default settings. The subsequent settings remain stored in a Flash EPROM
- e1 |0 B1 h% ~2 _" S0 \' d after switching the unit off (unit contains no battery).3 E+ i) h' J; ~0 F, K9 j
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position; v: S) w6 K/ d' y9 `
between microphone and line sensitivity setting ranges. O& p2 n1 q5 i+ h6 e5 z; l
Mic: Range –40...+20 dBu
& |" ^) ]9 S5 X) ~. \ Line: Range +14 dBu, +24 dBu
( G! c' d7 ^( A[3] Fine Gain Potentiometer for fine input sensitivity setting.
) G: m2 p& @( ? Range of additional gain: 0...+15 dB.
2 K8 w" B1 B/ e% J( D9 z6 E/ x Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
5 I! p8 W& U2 E( g. M the dBu value of an analog input signal which causes a full-scale output of5 K: z2 [' O6 F
the A/D converter.0 b1 N/ P i b
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;1 d+ l6 j# t6 S
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
/ d# j$ F' _1 _8 y5 I switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine7 W" Z s5 Q5 j/ s7 i \5 f/ K
Gain” potentiometer [3] increases the gain by 8 dB.! I6 O" G+ i9 V' W( {/ j
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
, L& \4 T; @; D3 B2 Y. q5 C" S[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
0 ^5 [3 V' M& d1 j6 Z) F0 @ have more body; percussive instruments are less aggressive.% G# Z, [. N* ~; g' R9 I
The group delay behaviour due to AC coupling of the stages is different in
. X. t) T$ m7 T8 }& U tube amplifiers.
3 x- b' n9 ]3 i! o) ? The “Bass Warmth” control allows to select the frequency range
! X( O( b; X. _) i (10...200 Hz) within which the effect is active.: e% z* g! m1 @1 g3 o3 o
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
/ M* Y( k# Y) w& b Valve amps have a characteristic response, mid-frequency harmonic content& y- r: a9 A9 }8 @" u- Z) H+ Q
is emphasized.5 p/ \7 h# T7 r$ q! `
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.4 a# b T4 q2 l8 y0 F$ V2 I2 B
The harmonics spectrum of a delicately overloaded valve amplifier is completely& H( w7 A [( r1 @# Z) q
different from an overloaded transistor stage.
! J2 s1 R) ?- k* R$ g5 \ The “Gain” control adjusts a gentle overload while the odd-harmonics content
" L5 t3 M9 Z: _" Q, b( J can be adjusted with the “Clip” control.: H8 \" |' w6 r0 T2 m, ^
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24$ I k+ o* W3 ^& _" ~1 m
dBu FS.
2 e) G/ }* C! C[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the3 U8 A' }. a- g$ ?& i2 {
desired channel.( s: j( N& N- T2 v1 g; U7 d$ v0 V. A
The “VALVE” LED is on when the Valve Dignifier stage is active.
; M7 j/ V1 P Q' q7 O0 B[9] INSERT INSERT function.. U9 T# I2 r+ {5 Q
First key pressure: INSERT POST VALVE, the Insert Send is tapped after) X! d, A m1 y' |2 U- d6 U7 W
the valve stage (display: “INS”); the Insert Return is directly fed to the Line3 i6 ^$ h, L9 t5 t
and AES/EBU outputs.9 L6 ]5 D/ I. l6 Z
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
, z" p# b4 F! g6 R# Z the valve stage (display: “INS” and “PRE”); the Insert Return is fed via0 u- F3 k: Y5 p! T" c
the valve dignifier stage to the Line and AES/EBU outputs.
% @8 f# m0 \* L- z3 M- K* W Third pressure: INSERT OFF, the input signal is fed via the valve dignifier6 w$ B8 I, x7 n, D" q2 ^
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
1 N/ e; m8 r! t2 N0 j receives this signal; display: none).
& |% r0 O9 q E Insert Send and Insert Return are electronically balanced and equipped with8 z7 B: G; B) Y+ w* \/ z
XLR connectors.0 G0 [9 {4 r( e: M( `, x8 L
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
1 J9 G# n: ]! v ADAT digital interfaces. Each input channel can be switched to one of the
; H4 f. c0 u% ?3 @6 {5 a9 j6 X channels 1...8 of the multichannel interface. If desired, also a mono mix is
, o* e- M& S: I possible by selecting the same output channel for both input channels.6 B/ B5 f! B1 A- t& n" m
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
) A- ^) g6 }( n! U" y channel.+ _* {7 Q4 |# B2 K% a
Can be operated only if the input gain selector is in Mic position. The
0 C. u+ P7 V+ x8 w+ M- S+ a3 v setting remains stored when switching over to a line gain setting.
' _9 m% p: o4 A9 m) H8 j[12] Activates the high pass filter on the microphone inputs of the desired channel.% @" i6 ]2 \: x2 O9 i
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
# Y' ?) z6 E. T& G) e, l/ S$ b: A, X Can be operated only if the input gain selector is in Mic position. The
; `; H6 H: N4 @1 C3 p* F% x. i setting remains stored when switching over to a line gain setting.
5 Y! ~1 q* r5 f+ |. Q[13] Ø Toggle key to activate the phase reverse switch of the desired channel.0 O: O$ @; e8 J2 k s
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
/ `% u. H! u4 v3 e “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with, f2 d: l0 Y3 N7 M9 M
Noise Shaping (display: “16NS”) can be selected.5 j4 X) d- M% m$ |
[15] SYNC Selects the synchronization source for the unit. Possible selections are:8 h* w7 a! J2 f& D9 P: B# B
INT 48 Internal quartz reference, 48 kHz
6 N# k% y3 Y! t INT 44 Internal quartz reference, 44.1 kHz
) }) u8 A6 H9 C- I WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)3 Z1 j8 k4 J& J! t" M; u
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)! H8 A3 Z; H. u; a% R( D
AUTO Selects sources automatically in the sequence AES-WCLK-INT
+ u: F. J* e/ B( e- X" z VAR Indication only, active if the external source frequency deviates from 48 or) Q2 D3 \) |5 L: w! K3 H
44.1 kHz for more than approx. ±3 %.
5 K" N. i7 `) p4 j6 {! d1 O/ Y, e! |[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –, w$ h1 {1 ~4 S! F4 U, x2 Z2 D
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.& J9 K# B+ b+ u( r- s1 s: S- }
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce' |% {. X- _: E
the danger of overloading the A/D converter with short signal peaks (if8 E' B2 H; ]* b# T
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
: J; _4 d& b, m allowing for approx. 6 dB reserve before hard clipping occurs% _ A7 h" Y; ?
4 h3 ]) R5 q! t: {3 _6 o
6 a/ p" f0 |! c+ j |
|