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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
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英文电子说明书
5 z1 O \ b+ B3 k! y7 i. g[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
( I3 ?; C1 P4 S: m9 s L default settings. The subsequent settings remain stored in a Flash EPROM
+ f# t: Q5 M( |! z, m ]1 @/ k after switching the unit off (unit contains no battery).
8 |4 d5 J7 n8 ^' z8 k" G[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
; M3 Y8 \' @ K between microphone and line sensitivity setting ranges.
% U) p1 \" @, G. |0 m+ k Mic: Range –40...+20 dBu
6 p% Z+ E3 v0 |1 q Line: Range +14 dBu, +24 dBu
' x0 y7 m4 L! [. F, c[3] Fine Gain Potentiometer for fine input sensitivity setting.
; i+ ?+ K8 q: A6 \1 |. d+ \- d) B Range of additional gain: 0...+15 dB.* I! m8 D9 x8 F1 }
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents. P2 n& e$ b) a+ y% h" _8 E/ ?4 U
the dBu value of an analog input signal which causes a full-scale output of
& B8 K. o' P& N the A/D converter.
$ x" }( \, n1 G6 h" N Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;2 J5 T7 C8 M' J$ d7 }* Q" [3 C
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
4 [! b( n7 f" E3 k4 v' T* Z switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
9 ?& V. }" a# C8 ]+ t- U Gain” potentiometer [3] increases the gain by 8 dB.5 ]4 w$ `; A8 n
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
# T+ D! N/ h3 p[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals0 `' M. h% J! Z1 s$ ?& [
have more body; percussive instruments are less aggressive.
1 t3 m. K4 i+ B5 `8 N3 x9 H# s The group delay behaviour due to AC coupling of the stages is different in
6 g; ^9 ^3 g; y& m( g tube amplifiers.7 W2 ]* z+ N5 f# x) F
The “Bass Warmth” control allows to select the frequency range. A* q, f I" h% V
(10...200 Hz) within which the effect is active.
. U* z+ l8 J6 X0 f1 }2 s, W[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
( Y2 F8 ?$ B7 k6 d Valve amps have a characteristic response, mid-frequency harmonic content- o7 R$ i; E# ]& h: Z' x
is emphasized.; i% y3 Q" D( S7 u! h- w
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.+ x7 ]- B( S0 Q
The harmonics spectrum of a delicately overloaded valve amplifier is completely
& ]) o7 |: C5 g+ t- u2 c( I different from an overloaded transistor stage.
0 ]! i( ?- Y/ w# y( S6 ~" A }4 ? The “Gain” control adjusts a gentle overload while the odd-harmonics content
0 Y. C0 F* p( U/ R2 m7 ~2 F5 z a can be adjusted with the “Clip” control.& z& g( r H% z) \' c! I2 S
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24- b! k7 Q9 t# A" ?* J5 r2 ]4 J
dBu FS.0 D! z) r7 C1 s+ A1 ?; h& H# c
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the! q4 {& y `2 J6 D, N: F: p, H" m
desired channel." v8 b$ p; Z- X) n8 b
The “VALVE” LED is on when the Valve Dignifier stage is active.
4 }2 r! X. U* O3 L[9] INSERT INSERT function.
+ t! O7 }, E2 [$ u" E! X" s, b9 Q First key pressure: INSERT POST VALVE, the Insert Send is tapped after5 B0 r1 [3 `, k. G' I" b# x
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
& R: S& D: M) W6 _; |3 R. r and AES/EBU outputs.* s) X% t) \8 [' E3 S4 Q: B0 K
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before! [& W5 {+ i3 m& [* j2 Q8 ?0 Q0 ^9 b
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
$ s5 a N* \. V6 n' T7 o: S the valve dignifier stage to the Line and AES/EBU outputs.' z! e# q( O% T! @& M( `0 ~3 U; N9 R
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier3 V: m/ K5 v& n- m
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output$ _$ h% Q7 N' ]( W, _
receives this signal; display: none).
0 ?, w$ K$ ~* W% ~& D! M Insert Send and Insert Return are electronically balanced and equipped with
5 ?. \5 `; f% Q7 M8 S# I XLR connectors.
" J) @7 [; J. L) J9 B[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or# K: r% C. Z9 E! ^% O% b6 y5 T' n% |
ADAT digital interfaces. Each input channel can be switched to one of the4 \$ K& e ^3 p& J& @0 R# P5 j" E
channels 1...8 of the multichannel interface. If desired, also a mono mix is
+ A- b+ Z0 R' @8 _. ~ possible by selecting the same output channel for both input channels.
0 a+ K5 S% e9 U+ D2 r[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
8 G! D$ n+ ]$ Y* F channel.
v- q% v, N$ Z. _: b Can be operated only if the input gain selector is in Mic position. The
2 u- ]2 O4 _" d% f setting remains stored when switching over to a line gain setting.$ y2 Q9 Z( i( q
[12] Activates the high pass filter on the microphone inputs of the desired channel.
3 \' t5 o: c# o7 t" I! w Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.6 I3 _& S$ _" L! [
Can be operated only if the input gain selector is in Mic position. The* y# |- Q {7 | R, ^7 {
setting remains stored when switching over to a line gain setting.
5 B" Z2 |5 h+ u! i[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
5 ^3 k& X% o ]/ a# C2 {% m[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:% O8 y4 S) y1 R( ], p+ D% z
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
' b9 i. f, Z; G, _& G6 o9 U w Noise Shaping (display: “16NS”) can be selected.% P0 w, ]+ n5 d- j3 }) v, ^
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
/ n, R* \& u* e' X INT 48 Internal quartz reference, 48 kHz7 l/ Y, g6 o0 n+ }
INT 44 Internal quartz reference, 44.1 kHz
( f; b/ S- [9 U1 d5 B8 j WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)* o- R# l9 f5 |, I* e8 @! u# n# T
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)0 T& g& L1 m: y. B3 A
AUTO Selects sources automatically in the sequence AES-WCLK-INT
4 N: l3 P6 n' I VAR Indication only, active if the external source frequency deviates from 48 or
5 N8 f/ u _! R& l2 H' x v+ Q 44.1 kHz for more than approx. ±3 %./ n- I% P+ U$ A8 x' w i4 `
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –& P0 C. A7 Z# t7 X% c7 s1 Q
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
& g* b" q3 b, h/ z[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce& e: f. A5 P" O3 O3 `+ j
the danger of overloading the A/D converter with short signal peaks (if' [- @* H+ J7 o' Z' i
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
5 x& `+ P0 |( d0 k) e$ S. ^0 E; e allowing for approx. 6 dB reserve before hard clipping occurs
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