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发表于 2012-5-20 00:04:04
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本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 3 ^# s! Q, X# l
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英文电子说明书
) N9 k% B9 `- F/ p0 z3 J1 n- w[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
* l( Z& D& S) ?$ I: \ default settings. The subsequent settings remain stored in a Flash EPROM: Y, N# B- `9 M6 b/ e
after switching the unit off (unit contains no battery).1 ^, S, `2 T! J+ O+ L
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
, \5 I4 I8 f2 l+ y% r between microphone and line sensitivity setting ranges.- @) }5 I0 u, u" G
Mic: Range –40...+20 dBu* ?1 E& _+ J+ t% _' y/ f
Line: Range +14 dBu, +24 dBu
! Q, e$ ~9 J! y8 @1 Z: f! f& e v Y; i[3] Fine Gain Potentiometer for fine input sensitivity setting.
9 x% [5 h7 n# s& ?" i9 U Range of additional gain: 0...+15 dB.+ J2 d1 k z6 u: I& w" V
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents" `7 N7 h# D% f$ V. K. h$ T4 d
the dBu value of an analog input signal which causes a full-scale output of, p/ C: {' i. o5 ~6 y/ i T
the A/D converter.
H4 I4 H+ @4 Q5 V Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;4 k/ h) Y0 V. n! i; z
the peak level is therefore +16 dBu. The “Input dBu FS” rotary( W5 t. [; x- e* i
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
! Q' y! p& ~7 ` x: \ Gain” potentiometer [3] increases the gain by 8 dB.
/ u. V' s- X0 f[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
1 M' f/ e# A+ c1 u5 u[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
( Y6 l, O2 P. {. W+ G& V8 |0 E, v have more body; percussive instruments are less aggressive.) X+ T, O& _2 d% A" H- @( O
The group delay behaviour due to AC coupling of the stages is different in
m# T8 n% W; ? tube amplifiers.
7 }, Q! P3 d1 I/ r9 j5 i The “Bass Warmth” control allows to select the frequency range
n% b$ W: s4 O! U (10...200 Hz) within which the effect is active.8 Z# v( ~0 t7 U/ u7 B
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
* y7 o p0 i1 C" E" G/ c Valve amps have a characteristic response, mid-frequency harmonic content+ D/ K& ^3 ?. e1 m9 y( ? B7 u# k
is emphasized.
/ i9 Q. H3 S. A: f- Q5 t[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.. ^5 ?6 L/ b. ~2 m
The harmonics spectrum of a delicately overloaded valve amplifier is completely
# Q. n7 d9 Y* S" C different from an overloaded transistor stage. o& I, h3 } X5 `8 B/ a
The “Gain” control adjusts a gentle overload while the odd-harmonics content
A; {2 ~0 u) ]- e/ t* M6 p P can be adjusted with the “Clip” control.
0 c( X) R0 z! f6 J3 f1 c[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24 ~ M7 j6 e0 E/ c- i' d! f
dBu FS.: l- y. p# N0 g5 c& {( I
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
; Y. w7 W1 P0 \4 k; j desired channel.; G3 E6 H' } w. f( L+ ^
The “VALVE” LED is on when the Valve Dignifier stage is active.6 d7 i3 Q( t D2 z
[9] INSERT INSERT function.: d) P! a# l7 l! H p0 R% n2 D
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
' X& q. c6 C& R( |/ { the valve stage (display: “INS”); the Insert Return is directly fed to the Line v* P9 C) X2 }( o% {0 H
and AES/EBU outputs.
5 _1 O' r D" G' ]. y Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before$ n. q1 N( V f- x" w5 r! z: ]
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
) B! Q2 Z3 G$ L! e' i the valve dignifier stage to the Line and AES/EBU outputs.0 f# L2 q0 ]: ~7 U
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
8 t& c# J/ f _7 d, x: l( [ stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
9 q9 z- \# v' W8 { receives this signal; display: none).1 h7 R9 k8 v: s- u
Insert Send and Insert Return are electronically balanced and equipped with; t8 v# `9 w1 H$ |( U7 y9 X
XLR connectors.
* Y1 d. [* `' Z3 X7 l[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or/ S3 B8 }% ~8 J" E* T$ q$ _
ADAT digital interfaces. Each input channel can be switched to one of the
% R0 ]; V8 ]) e* z+ C channels 1...8 of the multichannel interface. If desired, also a mono mix is
( m- D& L' v; l% @( n5 n8 V( G possible by selecting the same output channel for both input channels.
1 @, m3 B1 n% e" |8 x1 m[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone1 H* Q8 i% U9 O8 w( C$ J7 Q( N
channel.
& _9 W( J2 i7 Z! w6 ^ Can be operated only if the input gain selector is in Mic position. The
5 r; y5 `2 q1 l |! |7 I setting remains stored when switching over to a line gain setting., b u9 L1 z0 K
[12] Activates the high pass filter on the microphone inputs of the desired channel.; C- K, a3 T* w: w
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
6 R; }3 p D6 }, t1 y9 h9 L1 Y Can be operated only if the input gain selector is in Mic position. The, b9 E. e) @/ A
setting remains stored when switching over to a line gain setting.
+ N6 B/ v0 o5 e, d2 U6 K+ g[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
- t$ ^& T' p4 P& b X[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
, B' }2 |% S! t7 `: P7 u& Z3 v “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
; K8 l( Q: n& l/ t7 D2 r6 V J Noise Shaping (display: “16NS”) can be selected.% C$ l$ U& d6 X0 K1 F
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
+ [! ]) T1 S# y INT 48 Internal quartz reference, 48 kHz- v2 |, S. e! ~ Q) G
INT 44 Internal quartz reference, 44.1 kHz% V" F3 }- |9 b. ~0 L! @8 }
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
; t' O7 P8 P3 z AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
. U3 d$ C* g$ T' i4 d/ u AUTO Selects sources automatically in the sequence AES-WCLK-INT
/ t' ?' m+ E1 X" _ VAR Indication only, active if the external source frequency deviates from 48 or: F6 q% ^$ ?, u7 v3 S
44.1 kHz for more than approx. ±3 %.
& X- Z* t0 t) g" ]! A[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
6 i) X Y" U2 f3 ~ either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.1 G Z8 G9 \& w- { y( P( Q8 V
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce# K X* j( A5 |
the danger of overloading the A/D converter with short signal peaks (if
( B0 Y, n }8 z, Q# ^9 ]4 D* A* T5 C active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
4 B: H- t1 }+ U; d9 } allowing for approx. 6 dB reserve before hard clipping occurs
, n2 B2 q9 P- }6 v+ B & y6 a+ {9 V. E
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