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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
/ C+ y' b9 O5 ]7 [) ]" s# P[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
! W/ s3 a; z5 D" H0 Q default settings. The subsequent settings remain stored in a Flash EPROM
& F7 R. ^# v5 ?' x/ A after switching the unit off (unit contains no battery).
0 j- y" F4 z! U* z4 `, E: s* w7 o[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position5 K! @( o; Y* s+ j
between microphone and line sensitivity setting ranges.
! V) n' I0 C4 o4 G+ B Mic: Range –40...+20 dBu9 C+ l# Z1 F! Y
Line: Range +14 dBu, +24 dBu
) Z& R/ ^- F/ M( F2 Q! d A6 ^[3] Fine Gain Potentiometer for fine input sensitivity setting.9 t2 o: B% _- I* y2 J
Range of additional gain: 0...+15 dB.: h. }6 n# [; I
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents: j, X& o1 @5 X! {0 s+ u
the dBu value of an analog input signal which causes a full-scale output of! Z9 W3 S5 f; c# l, o
the A/D converter.$ Z+ x2 @) D/ i0 G) u
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;- l: p2 `0 B' v3 Q; s
the peak level is therefore +16 dBu. The “Input dBu FS” rotary+ h5 v+ z7 h+ `6 f1 k" _& s
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine3 i$ G9 s5 Y" S/ P9 Y* T
Gain” potentiometer [3] increases the gain by 8 dB.
# B5 j v& x2 I' ^[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
! q7 B7 t5 P* g0 D; g[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
; j- M! ^8 O6 V2 e S$ |* X have more body; percussive instruments are less aggressive. p( D" y" `' L- S: b, ?8 T3 ]: I
The group delay behaviour due to AC coupling of the stages is different in
3 M3 ]8 a" Y# `8 Q% K. L' @ tube amplifiers.3 \0 v" v1 w( W: M! [: c
The “Bass Warmth” control allows to select the frequency range; r) G: Q' B3 k. h$ W+ f
(10...200 Hz) within which the effect is active.# ]9 f+ U8 P% \+ P# r0 O
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
7 q% n8 w+ V, ~' D Valve amps have a characteristic response, mid-frequency harmonic content- z+ m4 N# _3 B' X+ q* _; R$ p- a
is emphasized.
" w0 ^0 C% N* |1 ?+ y[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer." D8 n {. _3 q2 x! z1 S5 A- P4 E
The harmonics spectrum of a delicately overloaded valve amplifier is completely5 L: C9 j/ n+ G' e7 g) U$ n4 h
different from an overloaded transistor stage.5 M' \# `+ |3 v( [$ Y7 k/ v
The “Gain” control adjusts a gentle overload while the odd-harmonics content
% v- |8 S9 V2 O3 X) T; q( @ can be adjusted with the “Clip” control." l9 @9 B8 ?' I/ N7 t; z+ i3 |1 e
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24; B8 T* J/ N( ^( ?
dBu FS.
: \4 q9 C9 \. p, a, `2 h& d" u! J[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the& h4 d8 m, z8 u9 F" M
desired channel.
' u# d2 m: u/ L3 f7 z The “VALVE” LED is on when the Valve Dignifier stage is active.4 u. K4 ~0 t, L) C1 X+ d* s
[9] INSERT INSERT function.
# v6 u/ d8 x( b) J1 q& ^, f" w First key pressure: INSERT POST VALVE, the Insert Send is tapped after v; L5 g% L) }
the valve stage (display: “INS”); the Insert Return is directly fed to the Line, ^' n3 I) F2 O( t$ \2 u
and AES/EBU outputs.8 M$ f% @* t3 l. p1 {
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
6 c2 p$ {1 X; r" W2 C6 {' @ the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
6 v( @' p' t1 s" q% \/ u the valve dignifier stage to the Line and AES/EBU outputs.2 @7 s( R5 ?+ G0 B5 A: c. t
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier ^1 W( X1 l, z3 Q
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output5 d _: g6 E& B, d
receives this signal; display: none).7 b; C3 Y8 x! z& |
Insert Send and Insert Return are electronically balanced and equipped with3 `4 `; O- T: M6 D/ B! A0 V4 c
XLR connectors.
7 Y6 X! ~ Z$ m+ J[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or& V7 z0 r) s ~1 F
ADAT digital interfaces. Each input channel can be switched to one of the0 h: ~( Q, m1 B! c7 f5 M# p
channels 1...8 of the multichannel interface. If desired, also a mono mix is" h! j% C- n, |0 V( v
possible by selecting the same output channel for both input channels.
" Y3 d6 e$ B" i, n1 }3 k[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
1 n/ f$ b6 I! g& `3 W: F! a channel.$ s. k/ q5 J6 |1 `1 w& z1 O
Can be operated only if the input gain selector is in Mic position. The
- C Q$ l1 w8 o2 ^6 n0 `# q6 C setting remains stored when switching over to a line gain setting.- g, b* w5 J5 F8 ^8 k, g* M
[12] Activates the high pass filter on the microphone inputs of the desired channel.
/ B2 G( G' S' a% @+ @ O0 c Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.* S2 X- V' n ?2 s
Can be operated only if the input gain selector is in Mic position. The7 s0 K7 a2 A7 k# X7 }0 Z0 M
setting remains stored when switching over to a line gain setting.# B$ D& k, V* V. R( K H( I/ M
[13] Ø Toggle key to activate the phase reverse switch of the desired channel., W0 u/ g2 h' e0 l$ b, v& b# B
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
: |( {8 ^- A/ W3 C, F& o; t “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with \/ L6 d3 k; X
Noise Shaping (display: “16NS”) can be selected.' f* q9 @! | [$ _, Z% K4 T j
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
. F# N0 |. z* k9 Q INT 48 Internal quartz reference, 48 kHz1 A; F5 ~7 F; }3 r
INT 44 Internal quartz reference, 44.1 kHz/ C; M$ \; v; C& e
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)2 s- J% O a; `! }
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
5 A5 }0 s Y2 I& ?, K v$ q AUTO Selects sources automatically in the sequence AES-WCLK-INT. V% n/ U& M2 y$ M
VAR Indication only, active if the external source frequency deviates from 48 or
) ~0 U$ }! M7 U ], o2 g! e 44.1 kHz for more than approx. ±3 %.3 n, {0 I% w- J) q& ^( t' _
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –( s/ Q5 Y' X2 b2 G* t$ }
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.& Y$ D1 T5 d) J u- h6 A- U
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce2 j& @7 ?: A- P/ l
the danger of overloading the A/D converter with short signal peaks (if
$ a h- t8 H8 L& ^ O active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
: B$ Y- g5 P) G allowing for approx. 6 dB reserve before hard clipping occurs
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