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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 9 q h4 Q" q4 l
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英文电子说明书
3 p; Y5 |2 e2 U- P$ ~[1] POWER Switches the unit on or off. The unit is ready to operate with the factory: _% V/ J" Y4 E/ J3 H
default settings. The subsequent settings remain stored in a Flash EPROM! ?9 _; M J6 u# u0 R
after switching the unit off (unit contains no battery).
- J6 ~- J M) R5 Z* \5 Q[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
* ]/ m/ e# ~) D& Y- U8 w between microphone and line sensitivity setting ranges.
/ S; O& M% c# |1 U! A% @! q, m% e Mic: Range –40...+20 dBu4 S1 R6 H! b$ f; w) U
Line: Range +14 dBu, +24 dBu" R# X1 J: E# @/ }0 [
[3] Fine Gain Potentiometer for fine input sensitivity setting.3 T# r- F4 m n9 z" A" ]9 m2 {' \: T
Range of additional gain: 0...+15 dB.; V& n; \1 X$ A; T6 l
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents3 x' q: {: D* C6 q
the dBu value of an analog input signal which causes a full-scale output of2 i, q8 y) f' \: e
the A/D converter.9 h. p6 O3 f3 _5 y+ C1 s
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;1 s/ Q) N& l6 v% w
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
7 r% m% \0 A' Y' |% z0 w4 m9 e switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
& S& @6 s% `, I Gain” potentiometer [3] increases the gain by 8 dB.
* y* B. G, q. q7 ?[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.; ^, S4 f8 g8 v* J7 L4 e
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals) g2 R! p. a; }4 r2 q5 X6 ~/ s( l
have more body; percussive instruments are less aggressive.0 x. Q Z! N) w. D7 q8 |
The group delay behaviour due to AC coupling of the stages is different in
& F R5 K4 j& H- g8 t tube amplifiers.0 X$ [* j) v/ v% X: r. a
The “Bass Warmth” control allows to select the frequency range( Z) ]2 p, S' F" @$ [4 w8 H9 W
(10...200 Hz) within which the effect is active.4 |0 x9 [! i6 Z2 N" |6 w
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments., ?4 P6 S/ v4 h9 |& k; z: M: l
Valve amps have a characteristic response, mid-frequency harmonic content
) n: a$ e: @5 p' n( G3 J8 I is emphasized.* g/ }' Q. W+ g9 S8 ?+ P
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
- P: o" a m- L! Q, F4 { The harmonics spectrum of a delicately overloaded valve amplifier is completely
0 D: ]$ `# z( ^ different from an overloaded transistor stage.
( H, r# U, }+ a. `+ M! q/ F The “Gain” control adjusts a gentle overload while the odd-harmonics content
) I. u- Q- Q* M1 b2 h2 s can be adjusted with the “Clip” control.
. x- K* y& ]/ M" t[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
( C: C4 a8 Y0 h4 _2 b8 V# K dBu FS.2 u5 U, q/ K* ^; M5 t9 c, k5 L ^
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
# Q4 c" E' V' i( Y0 d; ~ desired channel.
, l, x, _5 M: p. c* \( c The “VALVE” LED is on when the Valve Dignifier stage is active.
0 F' d+ V: _- k[9] INSERT INSERT function., T# r) _: ]6 Z. N( g
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
1 y2 E5 H1 U3 K ^ the valve stage (display: “INS”); the Insert Return is directly fed to the Line
) F* r X+ d9 B; @# m and AES/EBU outputs.
# Z' U5 n6 r1 h8 [ Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before3 K3 \" Y* P' O, Q/ N
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via) O8 {9 ?3 {0 M9 N
the valve dignifier stage to the Line and AES/EBU outputs.! a1 G6 d" x" [" n/ r; a
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
+ l% r5 D# t8 @3 x9 a' d stage (if active) to the Line and AES/EBU outputs (also the Insert Send output8 Z5 _8 @/ u6 g% m! M5 l8 u1 y
receives this signal; display: none).
5 P' V! s. {* H- S! N: X) |; F Insert Send and Insert Return are electronically balanced and equipped with
. Y" T/ _% W" P/ j2 G' H' B XLR connectors.) F; C: c: M1 t. ]
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or5 l; J1 C) _8 C" M
ADAT digital interfaces. Each input channel can be switched to one of the+ r+ l a; K3 ?6 Z9 x7 N6 [$ F
channels 1...8 of the multichannel interface. If desired, also a mono mix is
, E: R# o: _8 n3 l M: q possible by selecting the same output channel for both input channels.
) T4 E M9 p9 t, i6 ~6 V/ t[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone8 `4 T8 F/ Q5 Q, ^" x6 H
channel.! C# X- M o; V5 m; N1 t; X
Can be operated only if the input gain selector is in Mic position. The
6 l# r, i, z ]- s+ n setting remains stored when switching over to a line gain setting., [- [3 ]( c' k: x
[12] Activates the high pass filter on the microphone inputs of the desired channel.% B# M$ o) `" X) G) G3 |% `# B9 m
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.( @! ?" n" t+ L# E
Can be operated only if the input gain selector is in Mic position. The
) ]( b% P: ~. _: X# U setting remains stored when switching over to a line gain setting.: h2 |# x' X: [ i' W+ T
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.6 R) o0 w7 z" e/ i4 O9 m9 E5 {
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:+ _2 n- `! @$ A8 x/ d) e" U
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with% B; k! ~/ c0 e8 Y
Noise Shaping (display: “16NS”) can be selected.
4 t1 q9 z G+ x0 [% K[15] SYNC Selects the synchronization source for the unit. Possible selections are:
D3 | ^0 v) V: j% l4 C* J7 G5 A INT 48 Internal quartz reference, 48 kHz% u8 |1 ]! n6 n2 e4 Y3 p
INT 44 Internal quartz reference, 44.1 kHz
# {0 h7 I' J) e$ F& E$ q, v WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized), {: B. @' y9 e. D& k4 {
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)- y! T$ y& N0 x
AUTO Selects sources automatically in the sequence AES-WCLK-INT$ ?' \9 ]' C* @5 U+ E, E: h3 M% u
VAR Indication only, active if the external source frequency deviates from 48 or
: l2 p1 {* k& f" s/ s+ t3 e 44.1 kHz for more than approx. ±3 %.3 q8 C y. j# O+ G: q
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
% W- u7 P& H) y0 T4 I) a. r& V" [ either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.4 D! \3 k/ e% A' Q) |/ E
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce5 k9 q0 E, T$ e) g1 g4 Y p; o0 N
the danger of overloading the A/D converter with short signal peaks (if
! ] S, n5 b$ b& N. B# l active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,/ i( m9 J+ o: i* E
allowing for approx. 6 dB reserve before hard clipping occurs
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发表于 2012-5-20 00:17:32
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