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发表于 2012-5-21 23:23:18
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本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 8 @: V- Q* H& j- d2 h1 v6 i' e
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英文电子说明书) T1 H% H0 s9 H$ @6 c# o' J
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
& L2 | O/ `4 T1 H O( Y3 V default settings. The subsequent settings remain stored in a Flash EPROM5 \' m1 x2 b/ @" k. N
after switching the unit off (unit contains no battery).
9 O' W$ U; E* l4 G& s[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position' b3 t% |. {' g1 T
between microphone and line sensitivity setting ranges.2 |- @/ L: v& h7 G- x5 O, T
Mic: Range –40...+20 dBu
& G# I3 D" R( w Line: Range +14 dBu, +24 dBu
4 l+ h' r( ~+ g& j[3] Fine Gain Potentiometer for fine input sensitivity setting.7 c* I5 t* D0 t( n# G; z
Range of additional gain: 0...+15 dB.
. G# N9 h# @; O1 H, U i* g Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
; K3 X$ C( J& J7 k/ ~8 | U the dBu value of an analog input signal which causes a full-scale output of
6 m6 x1 p. g9 Z) [; [4 M ? the A/D converter.
3 U! d O, z1 U/ U* G! d Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
5 v- x. d) C; k the peak level is therefore +16 dBu. The “Input dBu FS” rotary) l6 \7 P, B5 C( o1 J. D- k
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine7 U- E# D' C) P4 C1 z( Q
Gain” potentiometer [3] increases the gain by 8 dB.2 h4 f7 K# l3 Y; Y8 ^7 F6 f
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.% b8 I4 J I" ?
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals w* x. U, Y7 |. ~: h
have more body; percussive instruments are less aggressive.2 ]* B' K2 K4 C9 F2 s2 T
The group delay behaviour due to AC coupling of the stages is different in
3 l1 X& q4 o2 O- L, l( @& J7 Z9 c tube amplifiers.
: n. [+ e: L8 r The “Bass Warmth” control allows to select the frequency range
' p# t% L4 l6 i- N3 ^" m (10...200 Hz) within which the effect is active.
) v4 o. t, q0 x! q[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.; N2 M+ [$ O T" Q
Valve amps have a characteristic response, mid-frequency harmonic content# W1 ?0 \& Z6 E+ w7 x
is emphasized.
6 q. _2 h1 Y8 g, |5 K[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer./ s3 R" O' N) B9 u) R
The harmonics spectrum of a delicately overloaded valve amplifier is completely1 ~) f+ _1 U* ?* m
different from an overloaded transistor stage.
( v& I( f% |4 l- G The “Gain” control adjusts a gentle overload while the odd-harmonics content e% p- w6 b) I
can be adjusted with the “Clip” control.' i7 a3 V7 T( F6 p
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24& B* M! P. v0 F, |7 W
dBu FS.6 @' U% W8 {7 o: M3 Y
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the K, K! R( R7 h6 V; x
desired channel.
4 ?4 j" {* g, U$ b! K The “VALVE” LED is on when the Valve Dignifier stage is active.
& o* R) B5 f; }3 L& W0 n1 \# T[9] INSERT INSERT function.
2 C+ k$ ~( x: {, k1 H First key pressure: INSERT POST VALVE, the Insert Send is tapped after2 T+ t3 r# _! z5 ?" B) B3 S
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
/ a6 N3 e( D, K* E# k9 p# D and AES/EBU outputs.$ ?. U: l; D$ A$ o& |. ]+ G" y
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before3 B1 d* V+ I2 v, x' }. R
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via% F; t( J. W+ a% c& G
the valve dignifier stage to the Line and AES/EBU outputs.
7 V* \* A' O; D+ h3 N9 z) L9 K" L Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
0 r3 a# ?) z/ W8 h: N stage (if active) to the Line and AES/EBU outputs (also the Insert Send output4 C% Z& Z0 r/ q) N0 c0 y. }1 D
receives this signal; display: none).2 K8 G7 I; R+ B- a3 m! R
Insert Send and Insert Return are electronically balanced and equipped with
1 B; H2 @- J3 \2 t5 u6 T' x XLR connectors.
1 |3 `' s: |$ C1 C2 O0 I' S[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or$ J' l% p9 d7 u1 E. q- G( P5 k6 A
ADAT digital interfaces. Each input channel can be switched to one of the
" V; ?7 B. {/ Z. v& U) C/ | channels 1...8 of the multichannel interface. If desired, also a mono mix is% \& r" R4 }* s, T8 E1 V. P1 B
possible by selecting the same output channel for both input channels.4 V/ i1 `) _/ [0 Q! I* x
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
4 w% `* a9 Y9 W# r4 {" S) [ channel., _6 P2 a; V G4 M: k
Can be operated only if the input gain selector is in Mic position. The
7 L( y) m* B5 f1 F setting remains stored when switching over to a line gain setting.
- Q8 z5 D5 s7 E/ p) j6 P[12] Activates the high pass filter on the microphone inputs of the desired channel.
- w. g! J2 W' C; a& y8 e+ i9 Q$ S Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.0 p9 O5 k* v7 A; {% F% L4 `
Can be operated only if the input gain selector is in Mic position. The2 g/ w8 {% p2 }' w* j2 [3 p; O! R& U: d
setting remains stored when switching over to a line gain setting.3 q" {2 t B/ b4 [6 h
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.9 E, P8 V3 g; r
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
+ O" o! S3 v8 ]* E “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
; a' V7 |1 Q# e Noise Shaping (display: “16NS”) can be selected.
+ @1 N% [! \) Z) R) K[15] SYNC Selects the synchronization source for the unit. Possible selections are:
% Q) J H# |/ g) j5 l n+ ` INT 48 Internal quartz reference, 48 kHz( g: Q+ J& X C% o
INT 44 Internal quartz reference, 44.1 kHz# Z& q/ z( F) Y2 S0 L) |9 v |0 p8 }
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
) x- z9 \2 m* T" R AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)5 C/ ^5 y# C( ^/ d/ G
AUTO Selects sources automatically in the sequence AES-WCLK-INT9 d% h2 c% N& [% n+ K) b5 Y$ ?
VAR Indication only, active if the external source frequency deviates from 48 or. i6 { b" q) Y7 ^$ w
44.1 kHz for more than approx. ±3 %.! w' ?. P U. ~5 E, {/ m
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –0 ^3 M! z! c& H' x, D m! _0 @+ a1 c
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
. h N4 {4 c! |8 |[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
6 j. d; V* u0 F- K& ^$ ` the danger of overloading the A/D converter with short signal peaks (if0 X" y% x: m4 n3 ^) B
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,( O% t3 t# u* o) l
allowing for approx. 6 dB reserve before hard clipping occurs
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