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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
* ]. s3 h1 B, V5 n$ M. M) h3 w: O[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
, r( B3 _! i0 x default settings. The subsequent settings remain stored in a Flash EPROM
% | Q% Y4 V; l3 d9 k; B" x after switching the unit off (unit contains no battery).; u4 G5 W# r0 X, S; X
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position2 i% D8 i$ j- x" ?3 u& s' o/ B
between microphone and line sensitivity setting ranges.
7 ?, h. `8 M2 N0 ~. t" ~8 {& ^ Mic: Range –40...+20 dBu
9 o) L$ K' Q* S- v# t Line: Range +14 dBu, +24 dBu
( M0 T4 K: G- q4 z$ p[3] Fine Gain Potentiometer for fine input sensitivity setting.4 g' N9 n% Q) {! _, A' t Q
Range of additional gain: 0...+15 dB.; T; Z/ r# V2 {& o, o
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
% p1 d; O7 p% Z# u" @. P0 m C+ j the dBu value of an analog input signal which causes a full-scale output of
$ b5 l$ B L; a the A/D converter.
$ ]( H8 F/ N( }2 s# V4 ?. t% T! M Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
# _6 w8 x1 V( [) N% b the peak level is therefore +16 dBu. The “Input dBu FS” rotary. U/ J2 W$ y8 o& z# U
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine5 o+ S" ^3 d* }! K% _. k, ]
Gain” potentiometer [3] increases the gain by 8 dB. J: L0 u4 O# \/ Y7 E% P
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.$ D. t! n% b& U N+ T
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals+ i+ ~+ G* k3 u# s) P/ F
have more body; percussive instruments are less aggressive.
; n( a# |% n- m& u0 o( S- `6 I$ ` The group delay behaviour due to AC coupling of the stages is different in* @7 _) g. U& b% W: [, W
tube amplifiers., I7 ?3 l- Y3 {/ \. n0 R6 c
The “Bass Warmth” control allows to select the frequency range
5 J) [) i: b* K (10...200 Hz) within which the effect is active.
/ ], O. y/ D; l: Y[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.9 G* {5 ]6 P4 _. f9 ?% w
Valve amps have a characteristic response, mid-frequency harmonic content" {& P" v: {" F5 o% z; H- D
is emphasized.+ e0 W( R8 m5 B' ?* {' p; K6 s( ?. |
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.9 X& f5 [& B9 {
The harmonics spectrum of a delicately overloaded valve amplifier is completely
O- D' R: g4 S6 W2 ]# K% U different from an overloaded transistor stage.
: i( d/ C$ `4 j The “Gain” control adjusts a gentle overload while the odd-harmonics content/ u) w; c: [' ?: ^- z8 o1 W
can be adjusted with the “Clip” control.
, o: R6 y4 _+ L: w* Z% L- W) h! m[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
# F) v& v+ A' h dBu FS.1 o U- f, O7 O
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
2 H0 S% A, _1 Z desired channel.! T0 Z3 u, T4 H& Z- {6 f7 s
The “VALVE” LED is on when the Valve Dignifier stage is active.
1 v& e7 z" g$ Q, k: b$ S% [9 O; c7 g[9] INSERT INSERT function.
9 }7 X7 y' `( K% X- X; ` First key pressure: INSERT POST VALVE, the Insert Send is tapped after+ x0 Z" d( [% }( Y- q
the valve stage (display: “INS”); the Insert Return is directly fed to the Line7 i! ^0 d; u8 f* _
and AES/EBU outputs.0 F! B" g! T% @2 @& v. g+ D) Z
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
S' |* h0 a# L- @' B' T- o the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
2 B* D3 i2 j, o$ n. l% i' n' l the valve dignifier stage to the Line and AES/EBU outputs.- p! s' }8 n1 M8 y; v2 @9 a
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
2 ], i8 ^/ i6 T; o stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
& h! |+ @, X$ [* }3 B receives this signal; display: none).
$ ]/ K- B! B: u Insert Send and Insert Return are electronically balanced and equipped with& ^: b9 ?/ Z7 D9 F7 J7 `
XLR connectors.( U) J! o3 t6 e5 W, h$ ~% z F
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
% z. b$ E" Z" A; J' @1 n ADAT digital interfaces. Each input channel can be switched to one of the
s3 o& z; r8 ~1 `: p0 e$ ` channels 1...8 of the multichannel interface. If desired, also a mono mix is6 b" O, L- R' K+ |, h# t. y8 t
possible by selecting the same output channel for both input channels.
4 v ^ T2 [5 M2 L8 i5 ][11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
. Y6 b5 Z! H: d$ c) V: u1 p8 q channel.
; f4 `7 W2 e) S6 B: ?0 S) \ Can be operated only if the input gain selector is in Mic position. The( y9 V6 z) {& y8 i
setting remains stored when switching over to a line gain setting.- S3 M1 r; X) s1 o8 M k9 O5 o8 v
[12] Activates the high pass filter on the microphone inputs of the desired channel.
5 j( @ J7 v- i1 M% Q% m9 T Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
' X! J0 I* w8 C6 a% ?' }! l& T Can be operated only if the input gain selector is in Mic position. The7 o) \; }/ F4 S6 i
setting remains stored when switching over to a line gain setting.
$ F6 L! r( i/ s" C" k[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
+ ~8 ~# q, Z( Q- {% r' {( I1 \[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:7 D0 l4 j; Q- [) r
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with% z$ ~8 u1 ]7 M
Noise Shaping (display: “16NS”) can be selected.# ?, ~) q: D& s9 m( e8 q6 Z- F
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
( h |2 u' J9 {2 {5 G INT 48 Internal quartz reference, 48 kHz
6 m w# h/ @8 E0 v; d' h4 `' Y INT 44 Internal quartz reference, 44.1 kHz
% c% J; a1 H6 Z WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
g* s5 M3 c/ ^. n: T! b; I AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)/ }' T0 a) s1 q+ ^" j e' K5 v
AUTO Selects sources automatically in the sequence AES-WCLK-INT
; h9 @2 W) |( X/ L6 H6 q" J, p" w VAR Indication only, active if the external source frequency deviates from 48 or
' ^4 L. V. S7 {( U3 F 44.1 kHz for more than approx. ±3 %.$ ^% y8 C2 v& [+ Q4 K
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
# y, t+ N' \7 I" p; v8 I1 S either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
$ F E \, d$ f5 @2 F/ n[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
5 ~2 _) N! E% Y the danger of overloading the A/D converter with short signal peaks (if
C2 X4 ?" t* X+ _ active, the display indicates “SOFT”). Threshold at 3 dB below full-scale," T6 E8 s6 U( l& D
allowing for approx. 6 dB reserve before hard clipping occurs1 v* a$ V( U" [5 C% h" w
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