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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! G* O% v: C6 @, H9 S) R+ ^4 |3 H
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
5 X+ h7 P* p4 `7 q$ S' m6 d( F default settings. The subsequent settings remain stored in a Flash EPROM
( C" P! ]' D5 X8 D# l after switching the unit off (unit contains no battery).# I: v' Q2 E) F, k r6 e/ g
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position9 f8 ~ _( z; k* z0 A/ o
between microphone and line sensitivity setting ranges.5 U, s* R+ i6 X6 O7 P/ B
Mic: Range –40...+20 dBu
1 q2 N" U# V4 J4 ? Line: Range +14 dBu, +24 dBu
( F$ t: l- d, E# i3 t0 I[3] Fine Gain Potentiometer for fine input sensitivity setting.; d) t& ?* e' v5 q J
Range of additional gain: 0...+15 dB. E: ?# F8 M& G. d0 Q# Q
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents, N7 C) {, |0 m& r( i
the dBu value of an analog input signal which causes a full-scale output of
& U# ]6 h6 r9 L the A/D converter.6 S. |- i3 d8 P3 X! T0 U4 k; K+ R
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;" k- @/ ~& ~( I$ f& c
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
; F. T# e- E5 s2 p: p switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
$ j' `* ]$ P, G i/ F+ C Gain” potentiometer [3] increases the gain by 8 dB.
# s. |9 n) `& q$ `, ]! i, _6 e[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.. R i1 K6 k# z. j( S8 D
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals$ n$ U# c# y/ N0 O& ?
have more body; percussive instruments are less aggressive.
, _% B; `9 u. }( S The group delay behaviour due to AC coupling of the stages is different in
Q! Z" r. p( F2 S7 Z tube amplifiers.1 U) w2 {4 o9 [( M7 ~- c: c8 q
The “Bass Warmth” control allows to select the frequency range
$ X+ g9 r9 L2 S- w (10...200 Hz) within which the effect is active.' r! p$ a! v0 o7 u9 a2 D
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
' E8 v) Q: P- r- [. Q0 Y# m2 d Valve amps have a characteristic response, mid-frequency harmonic content, g4 N/ L9 }2 D S
is emphasized.
: f# G r5 B1 \& K( n& s' |$ k; J# u[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
v4 i& M' ?/ R) [, Y. V# k1 G The harmonics spectrum of a delicately overloaded valve amplifier is completely
+ P% T" k. U" Z2 p different from an overloaded transistor stage.
5 p' r$ a* n$ J( y3 A The “Gain” control adjusts a gentle overload while the odd-harmonics content
5 B: g7 ^ h# }3 j" ^5 m can be adjusted with the “Clip” control.
# R. f, r+ h6 `7 e8 |& j0 G[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24 S8 H! P% r* e4 Z- d6 m; j
dBu FS.
$ d2 W* D. Q- r5 A! D' j5 g! @& y[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the" g, ?8 |/ b$ f5 z5 N2 ]
desired channel.
# i6 [8 c( B0 s; H7 ^+ k; G$ p4 i) B( I The “VALVE” LED is on when the Valve Dignifier stage is active.
- s9 ?+ \, H0 D1 E6 X[9] INSERT INSERT function.
o, K+ n" m0 b' o$ p* u0 n First key pressure: INSERT POST VALVE, the Insert Send is tapped after, D9 {# l. e: V; Z
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
( j+ q: U+ G/ D/ p" r! f and AES/EBU outputs.
B9 \! ~2 c9 U0 i5 x Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
) P% I9 o, V5 D- H7 q0 ]" J the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
/ A( O0 W& `. y- f& c6 s the valve dignifier stage to the Line and AES/EBU outputs.* x, K3 D5 E( \. ]# ~* k
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier- p( Z$ ]* u. x E+ v. g
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
! R% S0 b, x2 e! b receives this signal; display: none).
$ K- S) |8 l+ [$ N! p: g Insert Send and Insert Return are electronically balanced and equipped with4 Y/ ? v' B7 H+ N# e" h0 ^
XLR connectors.
& D8 g I+ ]/ x9 b1 }* m[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or) `/ O+ `, z( E/ t# o5 v
ADAT digital interfaces. Each input channel can be switched to one of the
! o0 [8 Z! ?. `( D7 N channels 1...8 of the multichannel interface. If desired, also a mono mix is5 |! S0 v! q+ s
possible by selecting the same output channel for both input channels.
3 y5 E( g G7 E[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
% l5 J7 u# _+ {4 ? channel.3 `. e2 z3 J0 B+ |: s1 h G9 ] V
Can be operated only if the input gain selector is in Mic position. The5 l6 o, H, J2 z9 n) ?
setting remains stored when switching over to a line gain setting.
% g1 H( g; v$ j& D7 `[12] Activates the high pass filter on the microphone inputs of the desired channel.
" m5 J8 [; X) s I) D1 P Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
0 O! z9 N% Q/ u Can be operated only if the input gain selector is in Mic position. The% G/ O$ Q0 X! x7 G W% \
setting remains stored when switching over to a line gain setting.# j) U9 J7 u- t+ t; v% g" F- a
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.9 e' u8 w8 o5 ]2 E; L6 r) _
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
2 Y+ j+ i; I0 Y% G# i “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with i Z* H: l3 G
Noise Shaping (display: “16NS”) can be selected.
p2 l) X: }; `* x0 i[15] SYNC Selects the synchronization source for the unit. Possible selections are:$ I! r3 k8 l1 E9 h6 W+ E; B
INT 48 Internal quartz reference, 48 kHz9 N$ E' g' }& C3 q+ i
INT 44 Internal quartz reference, 44.1 kHz! g5 n0 ~8 O5 p$ z
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
0 t! E4 k9 i! Y3 E6 H- ^% j AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
% X1 G1 n9 A! q+ q3 t2 R1 R AUTO Selects sources automatically in the sequence AES-WCLK-INT
u7 T5 |3 F5 o% {: u. Z VAR Indication only, active if the external source frequency deviates from 48 or9 ? G7 H+ r8 \& _
44.1 kHz for more than approx. ±3 %." P( Q/ \: Z" |- A' F
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –6 K" O9 @0 p% e1 D& {5 m; u
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.6 \* t, b# ~. Q4 ?( k2 h* E2 G( g
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce& O" e9 i3 z' O2 Y. f6 s* Y/ T) z
the danger of overloading the A/D converter with short signal peaks (if
% u. ?7 m: _2 y/ W active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,- f% Y, k" F' I: V* P
allowing for approx. 6 dB reserve before hard clipping occurs' E" @$ P8 S' w" L) T8 U
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