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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 # |9 d8 Q4 g1 [2 ]
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英文电子说明书
, C) [' I1 z9 G" i[1] POWER Switches the unit on or off. The unit is ready to operate with the factory/ R% z, Y# {) `6 z" n
default settings. The subsequent settings remain stored in a Flash EPROM
1 F0 p H \9 H. y: j after switching the unit off (unit contains no battery).
* ?3 H) M! F% e) r# M2 W1 f[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position7 H% k% S+ m) U6 G9 h2 V/ _
between microphone and line sensitivity setting ranges.
/ j3 k) ^0 G$ x7 h. g) y- C Mic: Range –40...+20 dBu
; [3 r+ n3 r: k* j; Q- _3 h+ L0 z Line: Range +14 dBu, +24 dBu: w: O2 y7 ~ r# y" _! g ~6 j/ M) R
[3] Fine Gain Potentiometer for fine input sensitivity setting.
' r+ D8 z1 Q, L$ e* C Range of additional gain: 0...+15 dB.- T7 Y0 y1 d. s. N6 S. a' _( @9 q
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
- T# P0 o! G) @: v# Y0 |+ z the dBu value of an analog input signal which causes a full-scale output of4 Z+ @* I! {* ^# h% Z; w
the A/D converter.
6 A5 @* m6 }# A' S | Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;) B: p y! L2 C. X
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
3 t8 W+ k+ b1 C) C& [+ u switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine) c: P7 d4 ]6 J7 p& W8 Y3 ~
Gain” potentiometer [3] increases the gain by 8 dB.
+ V- ]. }- q' O2 v4 D* J3 z- @[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
& F5 G2 W5 M& ?2 a5 ?5 G' @. e# [[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
Z2 e" K) s( Q4 ? have more body; percussive instruments are less aggressive.
5 m& J5 t. ^6 |* R The group delay behaviour due to AC coupling of the stages is different in& w( I2 b7 U5 B6 W( R
tube amplifiers.% w L" c ?" H8 t2 ?
The “Bass Warmth” control allows to select the frequency range! m2 V. K' o! i* r; T7 P
(10...200 Hz) within which the effect is active.2 O0 l: d, d- L2 r, O
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.0 y9 C8 V w) ?. s& u
Valve amps have a characteristic response, mid-frequency harmonic content5 q9 P2 l5 K7 {) P3 l; Z: x: b
is emphasized.
9 s' U8 n2 t+ g1 m[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
9 x0 c( ^- ?% E! o The harmonics spectrum of a delicately overloaded valve amplifier is completely
. F6 {4 P% I5 b/ u/ u, c different from an overloaded transistor stage.& G: j' t8 X6 S+ C" X0 l9 o7 p
The “Gain” control adjusts a gentle overload while the odd-harmonics content
* B3 @- O$ s! T7 n1 N# I can be adjusted with the “Clip” control.& y1 c. I; Y- u/ a( U
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
* Q% i. d1 G3 K) X$ J7 E @5 S5 r dBu FS.
; ?! r$ t2 N4 R, p1 }) w5 ]; c[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the2 k+ x4 n2 [ R. O* `8 W
desired channel., `4 m" s: {+ F
The “VALVE” LED is on when the Valve Dignifier stage is active.5 R* e% v0 v4 U2 W
[9] INSERT INSERT function.
% j+ p- v/ U- E9 l First key pressure: INSERT POST VALVE, the Insert Send is tapped after
3 r" f4 Y" G& [0 y @ the valve stage (display: “INS”); the Insert Return is directly fed to the Line
J% c( W5 `1 u' |% u% q and AES/EBU outputs.
' Z3 D" M" S- I: Q" F- r1 b4 ] Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before; ]; f1 v. a$ G, z* s
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via% B1 A& I$ S2 |* A, s( ~6 Y
the valve dignifier stage to the Line and AES/EBU outputs.
! H, L5 V: x6 U R$ R" J Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
9 C" A, c! b9 C6 C8 I; x2 u stage (if active) to the Line and AES/EBU outputs (also the Insert Send output& T, N, s& }. ~7 \: u
receives this signal; display: none).1 H: e% X" s# k% d0 m d: K
Insert Send and Insert Return are electronically balanced and equipped with; u* p( [9 q, \" y+ M
XLR connectors.' T% M6 t. K, r. s, S
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
3 z* `+ N& W! q& @- J5 y2 w ADAT digital interfaces. Each input channel can be switched to one of the
" k, E" S3 w4 ?; e channels 1...8 of the multichannel interface. If desired, also a mono mix is* r& R$ n0 x" G1 p/ C" l
possible by selecting the same output channel for both input channels.* n+ G/ l; L+ k6 Q7 D3 W$ W
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone. A! U, A' x! O1 A9 X: G
channel.6 m- k; F$ D1 B; {
Can be operated only if the input gain selector is in Mic position. The/ X) }- F* |4 I
setting remains stored when switching over to a line gain setting.
; Z, d c7 c* j9 d+ n0 o$ f1 S[12] Activates the high pass filter on the microphone inputs of the desired channel.
% H( F( Y9 _1 v6 Q Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
7 _+ }% F) X1 |; R Can be operated only if the input gain selector is in Mic position. The
5 p* }! |1 E6 R setting remains stored when switching over to a line gain setting.
1 X2 i2 t9 M: ` r" u# z) u# J[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
! I& R# Y) b1 ` e[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
5 N) z0 G! I H4 | “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with0 h. r1 f6 U# J0 ^6 @+ {$ d/ Z
Noise Shaping (display: “16NS”) can be selected.
l1 K2 r' P: D[15] SYNC Selects the synchronization source for the unit. Possible selections are:
4 C% {" ^3 [# }8 b. E5 K, f- G0 v" s INT 48 Internal quartz reference, 48 kHz
; t7 q1 Z, Y' @: t% ~ INT 44 Internal quartz reference, 44.1 kHz( H7 w! J: E2 o( h/ U$ _
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)1 D3 W6 a4 q6 i
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized). y+ i/ E, @8 Y* G+ P, |% O
AUTO Selects sources automatically in the sequence AES-WCLK-INT# t, V& A6 \0 x5 K/ H3 l
VAR Indication only, active if the external source frequency deviates from 48 or3 _7 ~4 m* O' w9 [ I3 m
44.1 kHz for more than approx. ±3 %.
/ h+ }1 O4 B, R" u7 ]: h# V; s[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –3 @, o' |2 [5 K* B% O i' c2 v/ M: h
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.( Q- W; \3 y. ^8 g" g$ e! C
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
, R- Y1 g% z/ f0 [+ y6 p6 @$ B the danger of overloading the A/D converter with short signal peaks (if
5 C: g Y; f/ K active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
5 G9 ]7 g6 ~/ W. |( K2 @ allowing for approx. 6 dB reserve before hard clipping occurs
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