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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
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英文电子说明书0 } L* O' t+ d. U. X3 l
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory) X& M" v- v6 c; U
default settings. The subsequent settings remain stored in a Flash EPROM
8 ^; ~! t# J( q I, `& b( b. e after switching the unit off (unit contains no battery).
! s. f1 z! E4 x" k5 n! |1 P2 V0 t& B[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position- x$ U1 x) [( s& N1 Z2 S/ o9 s
between microphone and line sensitivity setting ranges." D9 ]$ e- z( h; B+ ]+ c" l
Mic: Range –40...+20 dBu
- {+ Y& \" U& w! S Line: Range +14 dBu, +24 dBu
" m$ t$ j" d4 B" K6 F+ n[3] Fine Gain Potentiometer for fine input sensitivity setting." p( H- c, N* d* Z
Range of additional gain: 0...+15 dB.
2 c X% e2 b. {$ ~ Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents: n+ s% I, T) T, Q
the dBu value of an analog input signal which causes a full-scale output of/ k- C: W0 @' G3 U C8 Y
the A/D converter.
7 h( i! l: i7 R& P Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
% c5 C, y8 e; M" a the peak level is therefore +16 dBu. The “Input dBu FS” rotary4 x, y, ^/ j3 l9 D% N+ i: Z( T
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine& R: I; W. a' Z2 I' p
Gain” potentiometer [3] increases the gain by 8 dB.% l& M% c2 T s. N
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
! m" U( z y8 T" A O, W[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals8 U3 R1 k: G# i9 t7 t j% x
have more body; percussive instruments are less aggressive.
. g( E3 F1 ]- t The group delay behaviour due to AC coupling of the stages is different in
# o) c* S/ m4 s$ f tube amplifiers.
( w0 H/ r; M% x H# D) b5 m The “Bass Warmth” control allows to select the frequency range6 S" h2 I7 O9 i
(10...200 Hz) within which the effect is active.
: }4 @1 {3 g. Q# t* K[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
* B+ Y0 r' t0 w- o5 @- x Valve amps have a characteristic response, mid-frequency harmonic content
8 l Q; c O' x x) c is emphasized.
. Y! T) l% W% N: s0 m! f, D3 g[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
^ x' F" i7 m v2 W The harmonics spectrum of a delicately overloaded valve amplifier is completely% D* e6 T& I! \' g, h! h! j; d& _
different from an overloaded transistor stage.* [5 u" ]; L1 N8 {% H
The “Gain” control adjusts a gentle overload while the odd-harmonics content; U+ k, v. n+ L& B' P
can be adjusted with the “Clip” control.
' Y; a3 r0 E7 G R% \0 c% |9 H[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24( _* ?9 e& s; X( d6 h
dBu FS.
t! \8 j7 C$ R4 f6 B) n; X; D8 R[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the# C% [% [: i; t2 ]
desired channel.
- [6 b* q" O" D* Z. X The “VALVE” LED is on when the Valve Dignifier stage is active.
F' R2 d' d2 O" w" d, b[9] INSERT INSERT function.
" y9 M( M2 |& c% ]5 T0 J6 t First key pressure: INSERT POST VALVE, the Insert Send is tapped after% ?/ o1 J [2 J- j# K$ Y5 V! `, \0 e
the valve stage (display: “INS”); the Insert Return is directly fed to the Line( \3 D& M; G) N6 r2 l! I; p1 P
and AES/EBU outputs.
) v( ]/ j' f$ m& h: J Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
: e: ?9 b! s7 ]+ t the valve stage (display: “INS” and “PRE”); the Insert Return is fed via# v3 y% @! ]8 W0 {
the valve dignifier stage to the Line and AES/EBU outputs.
3 A Z. |- Q6 m( u" E; K2 b Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
' j/ ^+ M: H5 a: d1 s7 D- V stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
3 m6 x0 c+ s- c0 N$ i( q/ } receives this signal; display: none).
N. H% Q; J( ]' F Insert Send and Insert Return are electronically balanced and equipped with* `2 x. T6 [& f' i( G" t* }' {/ v
XLR connectors.9 F0 o0 f/ U" m+ [- G, v$ E
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
4 D% u5 ^- e/ S9 s- n ADAT digital interfaces. Each input channel can be switched to one of the* C# o# @( M7 W, @; i
channels 1...8 of the multichannel interface. If desired, also a mono mix is
; n' ^ K6 U: ` p/ [, H1 u/ C' T# \ possible by selecting the same output channel for both input channels./ G/ v8 i5 E! ^# s0 I
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone9 q- m# Z& H1 Z6 y- B/ f
channel.6 l8 e+ ~# r8 a& K5 S- e
Can be operated only if the input gain selector is in Mic position. The
8 G5 K! N0 ^ ~! Q" W setting remains stored when switching over to a line gain setting.4 {" j" j& d5 D6 X) C; a/ |
[12] Activates the high pass filter on the microphone inputs of the desired channel.
. K1 M( S& G+ E' K3 O2 [ Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
1 `9 f6 |0 ^( v( G Can be operated only if the input gain selector is in Mic position. The" ]' P4 L- j ]" f8 i/ `+ ^3 c; v
setting remains stored when switching over to a line gain setting.) N& K$ l- y2 j+ N
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
" H" |1 D, a+ ^: I6 z7 w: k[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
" l# x+ P7 Z1 Y* u3 l# } “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
- s! ]* e; @, I8 ]; q9 A+ V Noise Shaping (display: “16NS”) can be selected.
: Q( n. P9 `( F# o, ][15] SYNC Selects the synchronization source for the unit. Possible selections are:
' ~0 l! f' u( \# i. @ INT 48 Internal quartz reference, 48 kHz
# h: W1 `; Z2 u INT 44 Internal quartz reference, 44.1 kHz8 z7 A' o$ \7 d& m, X" b- {
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
, h5 C9 i$ i5 X& p2 ~% I AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
1 P0 g5 K. v6 V AUTO Selects sources automatically in the sequence AES-WCLK-INT
0 L9 C$ P2 e9 ]0 a" Q: b: Y( p VAR Indication only, active if the external source frequency deviates from 48 or; p5 ?. B3 |6 m5 X8 L/ f
44.1 kHz for more than approx. ±3 %.2 i& s9 `9 j. W- J# @3 J, ?
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –- f `2 W% H: |2 @2 ~6 Z
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.: @1 d3 b8 `2 K( _
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
# }8 \0 d7 x8 @9 L the danger of overloading the A/D converter with short signal peaks (if! ^" o+ [& _/ z2 |
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
0 o) g! r s2 ~2 v1 T" p allowing for approx. 6 dB reserve before hard clipping occurs P& a, j( K; X( O
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