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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 4 w6 _0 J/ t" K5 s
9 D/ s8 t& l0 V; Z' d0 I0 l; F/ @7 U英文电子说明书
7 a$ V4 N' s. w" v[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
* s. g/ j7 i$ f$ f( A+ @ default settings. The subsequent settings remain stored in a Flash EPROM
- l" q9 j; o7 N! |1 ^4 g after switching the unit off (unit contains no battery).
5 v/ b" t$ j6 ^" B( T" [0 k[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position4 n+ d" s; G) V) ]% v! x
between microphone and line sensitivity setting ranges.4 r1 i- w. N; i- W
Mic: Range –40...+20 dBu- d4 Q" K2 Z: F3 Y; G5 P- Z3 e- w5 n; W
Line: Range +14 dBu, +24 dBu" B8 N1 @6 ?+ j$ g3 E
[3] Fine Gain Potentiometer for fine input sensitivity setting.9 N3 H2 u% n; R) r, p2 l, f
Range of additional gain: 0...+15 dB., d$ r' O0 b# X8 T, X" ^ `0 U1 d
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
; i z8 ^. {; Z, P! h the dBu value of an analog input signal which causes a full-scale output of( k ~3 z, x0 \! V+ v# k4 ]
the A/D converter.
) n* j& c. n+ L8 o2 ~6 M: z) w/ T Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;$ J+ m1 S. r/ L5 G3 B
the peak level is therefore +16 dBu. The “Input dBu FS” rotary" a! H* r8 }& y x
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
' A- s/ A. F# f) ~3 x Gain” potentiometer [3] increases the gain by 8 dB.3 ?- o& Q* W% ^
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active." {. l1 q* v0 _' s/ |7 Q/ ]% Z
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
$ J4 {2 i$ _: f6 e9 x* y r8 B have more body; percussive instruments are less aggressive.
$ I3 U% O) i/ Y The group delay behaviour due to AC coupling of the stages is different in6 [; K9 [' o% M4 U4 W! o1 P* E( x
tube amplifiers.
5 S$ l/ ?: k( T# z8 O, D The “Bass Warmth” control allows to select the frequency range# s& L. d. v% F6 H$ {
(10...200 Hz) within which the effect is active.6 h( Z" p- ^; e( E0 o8 Z
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
4 n. @- m) |6 G9 d6 X- j1 N Valve amps have a characteristic response, mid-frequency harmonic content. b" t5 A+ L/ J8 {" s# P
is emphasized.# v1 M1 O, _. M# V' ?: S* z
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
' Z% e2 @8 H; x9 m The harmonics spectrum of a delicately overloaded valve amplifier is completely
: G/ B6 t' M- x1 X, [2 _ different from an overloaded transistor stage.5 d9 ?. a3 `- i+ \# b' |
The “Gain” control adjusts a gentle overload while the odd-harmonics content
8 |+ R4 B& D2 n. O, ^ can be adjusted with the “Clip” control.
, @- T9 c ~8 x2 y, I |, Q[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24& V' Q* o, q' j o* o# w& @. T" S7 x. G
dBu FS.
: ?, q! g5 G, c7 {4 c[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
8 d& w) N7 s1 X1 }% J- k desired channel.
6 x6 v1 O( O: @# B' m0 J The “VALVE” LED is on when the Valve Dignifier stage is active.. h6 v, \. Y6 Z4 r
[9] INSERT INSERT function.
5 \" C* Q" M7 k8 m First key pressure: INSERT POST VALVE, the Insert Send is tapped after f9 A3 Y+ F7 Q9 C, j
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
5 l9 u! g5 ]& W and AES/EBU outputs.
: ]! {% a: Z) k4 ^8 f4 D/ _/ b5 s Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before4 K. O+ K' C' y$ ]! L
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via9 s3 C2 f/ S) y2 n0 ~1 i( T. ^
the valve dignifier stage to the Line and AES/EBU outputs.' O r T; L- F Y, w: v4 J y- w
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier# I, C% q* J8 w
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
) s2 W% T( r* C# i( j: ?# u receives this signal; display: none).) m' E% m( k- [ W
Insert Send and Insert Return are electronically balanced and equipped with* F# F7 T/ L$ h0 Y, l
XLR connectors.
% Z! p& I& f, c: V; W+ n" L6 X[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or% [9 G2 {8 v. g( S% N3 o
ADAT digital interfaces. Each input channel can be switched to one of the
0 Y+ [% B8 @# i/ h% q/ Y6 a! o channels 1...8 of the multichannel interface. If desired, also a mono mix is
4 y. O9 U( {1 `5 l. ]/ u possible by selecting the same output channel for both input channels.
3 l# w- A1 ]+ R6 L ?[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
6 l# U$ y, B- R- o s1 ]! _; Q channel.4 b" |1 C: n, z# D7 E8 f, b$ \$ }
Can be operated only if the input gain selector is in Mic position. The! m+ Z7 ~) D+ k& }, H
setting remains stored when switching over to a line gain setting.1 a0 y* |, [. V
[12] Activates the high pass filter on the microphone inputs of the desired channel.9 Z$ Y9 ~5 O* B
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave./ g- C! y5 T U* d( \# y
Can be operated only if the input gain selector is in Mic position. The
( G( h+ Z% P _ setting remains stored when switching over to a line gain setting.( p8 C; L+ b. Y6 T
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.1 T4 T2 [3 A6 t1 |2 @# }. f
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:, r$ g5 J" w9 ^4 S) o+ n7 y
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
5 | m: v, {$ [ G4 D! y Noise Shaping (display: “16NS”) can be selected.: D2 J+ U/ R8 s& Q
[15] SYNC Selects the synchronization source for the unit. Possible selections are:- a* }, W: y7 {! ?4 ?0 `% h% q' }2 N
INT 48 Internal quartz reference, 48 kHz
( B2 `( ~+ V- j" N9 F6 K4 A INT 44 Internal quartz reference, 44.1 kHz
) P$ c- C+ W$ q g9 b, V, n2 S WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)' }. S( q/ V" [( N, E9 y
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized); a& u( Z% m! A' l& k
AUTO Selects sources automatically in the sequence AES-WCLK-INT
$ _5 {: j0 @8 u8 ~/ s- h$ k VAR Indication only, active if the external source frequency deviates from 48 or
+ n" f. P" n* {1 Y3 ~2 c 44.1 kHz for more than approx. ±3 %.
6 r) L. \; L: G9 t% F2 @7 ^[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –9 z" z. z# j+ l8 j+ l1 y
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
( W. F, p9 \2 O: x[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
& e/ _1 L# j6 P the danger of overloading the A/D converter with short signal peaks (if
6 w8 f* s& X% ~0 t2 I active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,1 Z/ m/ R+ p( g4 s. |- u
allowing for approx. 6 dB reserve before hard clipping occurs2 q8 ~) K" ?( x. h) c3 l2 K4 n
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