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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 ; ^: N; M$ w( i( u& J
) [/ o) c4 b5 d7 C. ]9 _英文电子说明书- z0 n f* B1 M1 H2 n
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
- \, m2 n* U( J$ V7 w; e default settings. The subsequent settings remain stored in a Flash EPROM9 x9 N7 I* |- g9 l+ j# _
after switching the unit off (unit contains no battery).: o& Q) ?) C2 ?) N& P6 R. ~0 ~% U
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
; [+ q& m) y3 b8 c5 ^( ]! X* P$ ?( ` between microphone and line sensitivity setting ranges." |, n9 i; \) B! N' I+ v
Mic: Range –40...+20 dBu: K- v3 S# Q6 N
Line: Range +14 dBu, +24 dBu; X& e$ y9 u+ }8 `& X& ]
[3] Fine Gain Potentiometer for fine input sensitivity setting.
1 L j/ K2 ?7 Z" K! r Range of additional gain: 0...+15 dB.
: I. H3 v/ V" k( A) K! Y Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
$ K5 f% r/ K' E0 F/ \ the dBu value of an analog input signal which causes a full-scale output of5 V; N& _. U8 z! ]
the A/D converter.1 Z. R3 P/ Y; G2 C/ K6 ], J) v$ W
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
. B) D2 z& a+ K; d the peak level is therefore +16 dBu. The “Input dBu FS” rotary
* f6 }7 @! ?' l a+ F switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
, f4 y% w- N/ @0 l: r8 e6 ]! F( Q. w Gain” potentiometer [3] increases the gain by 8 dB.: P2 w; i. p0 Y
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.. I# }$ s+ z. \5 f& F
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
( }2 E# F* d6 T% k+ a) S5 u6 o have more body; percussive instruments are less aggressive.
6 a. R$ ^% w1 ~9 d( k! y& q& i The group delay behaviour due to AC coupling of the stages is different in3 e2 C \# G7 @) X8 N
tube amplifiers.
( `0 @# ]5 Q9 o' f# w% A The “Bass Warmth” control allows to select the frequency range
/ V( w" Q& i P7 i (10...200 Hz) within which the effect is active. n0 a1 \0 h' p( u9 J: O
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
2 L' I( Q* K' ~( e# s Valve amps have a characteristic response, mid-frequency harmonic content! m2 t$ X. a6 J# R
is emphasized.4 r! ^# O) n: O$ g8 N: `7 g
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
% v8 ^* O6 X* Q) t+ n7 b) S The harmonics spectrum of a delicately overloaded valve amplifier is completely
5 W$ I% r e3 H7 I; [9 v: y different from an overloaded transistor stage.: f! \! `1 e% [, A' K# p$ F
The “Gain” control adjusts a gentle overload while the odd-harmonics content5 W: Y2 h3 ^$ @, ~2 k
can be adjusted with the “Clip” control.
; e' D. z. J' a& K) j+ o[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
, v7 Q8 w! q2 L! K( y9 F' F dBu FS.
1 S, G$ k7 R9 R' i[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the+ h- r" g# R! ? a) r+ a. `. F' Q( Y
desired channel.# b* V- C6 p' T9 z. U2 j
The “VALVE” LED is on when the Valve Dignifier stage is active. d* A8 ?) {/ ^/ i
[9] INSERT INSERT function., d- x- H& g7 r% ?
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
9 `2 ], E1 M3 b$ L& e6 X: J the valve stage (display: “INS”); the Insert Return is directly fed to the Line
* R3 Q/ k( [! w1 g' i/ J and AES/EBU outputs.
) Z/ p- K$ E. N- k Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before9 {) n& c) C' _( K3 x. _ s
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via: e% Y- K" @2 |" Y; Z4 \
the valve dignifier stage to the Line and AES/EBU outputs.
: A: j6 Z9 P/ [3 u" ^+ u Third pressure: INSERT OFF, the input signal is fed via the valve dignifier: d6 J# O% A& H3 R" @ w9 ]
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
. K- l* k# P+ ~" K6 { receives this signal; display: none).5 y) {' ~6 u: I
Insert Send and Insert Return are electronically balanced and equipped with8 _4 V0 \4 P7 f0 D2 X) a
XLR connectors.
) o" x4 K0 ~8 [[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or- K* s3 z! R$ c7 Q6 K
ADAT digital interfaces. Each input channel can be switched to one of the
5 N! O" I. K! c1 { channels 1...8 of the multichannel interface. If desired, also a mono mix is
+ I) o2 n( ~# g( g possible by selecting the same output channel for both input channels.( ]* N: Q. }1 w6 ~: g# x5 }+ O
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone$ o2 Y. L& G2 X
channel.
4 m/ y' F; Z! W. e9 q Can be operated only if the input gain selector is in Mic position. The$ D a% N8 A8 H3 D
setting remains stored when switching over to a line gain setting.* v/ t' M' z% H" t5 u
[12] Activates the high pass filter on the microphone inputs of the desired channel.
\1 g* P- ?1 R7 w- w Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.& Y4 P6 E4 v. }0 L. m( w1 p
Can be operated only if the input gain selector is in Mic position. The
3 x( P5 O4 W$ v# \- w: B setting remains stored when switching over to a line gain setting.7 Z* E; a$ }& u! {8 c. {: `
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.7 s( V( U5 _; a7 u, O
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:2 w. z3 ~& w$ r: Q! P* y% {
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with% M3 I+ K, ]/ M* T1 `
Noise Shaping (display: “16NS”) can be selected.
0 [7 R. k) Y0 T. I8 z[15] SYNC Selects the synchronization source for the unit. Possible selections are:
9 o O4 O1 K* u7 f- J INT 48 Internal quartz reference, 48 kHz' d5 ^% H. v: c `3 T4 ]
INT 44 Internal quartz reference, 44.1 kHz
$ {+ m0 i8 \: S WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
- a6 Y& c( D0 s8 v9 L" p AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
9 G# ^. w, B1 C" R3 D AUTO Selects sources automatically in the sequence AES-WCLK-INT
! k9 A& B5 W) A' E% ~/ K VAR Indication only, active if the external source frequency deviates from 48 or3 `# q& l0 J; h9 K7 z
44.1 kHz for more than approx. ±3 %.5 M* [; Y0 g6 J8 j4 O$ a; `2 L n! A
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
& K. C/ ^/ [7 S3 @8 j either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
$ p! `0 f4 H4 v, l1 I! @4 r[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
, P7 X2 i4 y; x# L* q. n the danger of overloading the A/D converter with short signal peaks (if6 [ o( V, i7 d! u
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,, O$ I! j- t, m1 U; R
allowing for approx. 6 dB reserve before hard clipping occurs
" j9 {! A& V8 w) f( O$ S( I2 W8 l & J/ g" I, s5 c" j8 T8 A# a
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