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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- b( k6 l6 ~8 Y: F7 m5 S
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory/ \6 I D! t- M9 s
default settings. The subsequent settings remain stored in a Flash EPROM3 b4 J7 @+ |4 ]- M% r U4 g
after switching the unit off (unit contains no battery).7 ?' m, w/ [, d, S& u' o( N
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
0 T# ~; t3 p& J" O- K5 F% r between microphone and line sensitivity setting ranges.
( ]* D5 {5 F' |/ q( ?5 D5 U Mic: Range –40...+20 dBu" @, o) r2 G5 A- ~3 \3 i7 |; K
Line: Range +14 dBu, +24 dBu2 V) @, G j0 R# o! i7 u! E' m
[3] Fine Gain Potentiometer for fine input sensitivity setting.
2 h- I# ]- o9 } Range of additional gain: 0...+15 dB.
* N I, p( x7 K& F9 i Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
) h. `6 \0 S6 R- | the dBu value of an analog input signal which causes a full-scale output of0 @$ q x9 b+ O
the A/D converter.
5 u: }$ ^8 ~7 v) W3 a Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;& A. I0 `* ^, A2 P! X- |) C
the peak level is therefore +16 dBu. The “Input dBu FS” rotary/ i) X, W5 z1 T4 F3 m
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
1 p- g. A7 p4 C: N Gain” potentiometer [3] increases the gain by 8 dB.: W) V+ d) v& H0 ]! }. ? I3 X
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
- U! |5 P6 v; ]. x) T2 h$ d[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals0 b8 I9 {' P4 L
have more body; percussive instruments are less aggressive." D1 e" o3 v/ d p' s2 ?# y
The group delay behaviour due to AC coupling of the stages is different in4 T) o* L, e/ z: \; I
tube amplifiers.
: Z% d7 y) o1 F7 Q3 w The “Bass Warmth” control allows to select the frequency range- M: h) k7 r6 ]1 \/ x
(10...200 Hz) within which the effect is active. X" J/ ]4 x' ~6 p8 M0 j0 ]
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
; q% l1 `+ N' z3 S( I Valve amps have a characteristic response, mid-frequency harmonic content6 z5 T$ ^! |) O' O
is emphasized.
9 M: P0 R9 l8 ?* Z z z[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
5 G! U: j( s- X0 U' i The harmonics spectrum of a delicately overloaded valve amplifier is completely: G0 \+ @9 m+ [
different from an overloaded transistor stage.5 Z" s2 r' P# f; a0 t7 K4 T$ P
The “Gain” control adjusts a gentle overload while the odd-harmonics content( _) A# S! L9 y% s* j7 i
can be adjusted with the “Clip” control.0 W t$ M* c6 n
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24, T% R0 B+ G$ u/ y! q$ Z# e
dBu FS.4 [1 o$ O5 |# ]
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
6 T+ a- [* u+ A, F6 D desired channel.
- w$ V+ ^* i& B% Q' n The “VALVE” LED is on when the Valve Dignifier stage is active.! Y9 Z/ J" m' J5 i3 X; h
[9] INSERT INSERT function.
& I# V: G3 F: O5 S7 r) Q First key pressure: INSERT POST VALVE, the Insert Send is tapped after% l A+ x; l s: j/ d
the valve stage (display: “INS”); the Insert Return is directly fed to the Line( c: m1 z. v: }; }
and AES/EBU outputs.
0 K" L$ Y% k( N" @ Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
; c+ b- ]- q( a- C. h9 h! } the valve stage (display: “INS” and “PRE”); the Insert Return is fed via. w3 k+ n8 d, W$ W3 A
the valve dignifier stage to the Line and AES/EBU outputs.
; c I% z) f1 _ Third pressure: INSERT OFF, the input signal is fed via the valve dignifier! l* T7 U8 f( f( B# k6 r% Q8 {
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
* M% M, J6 F% j7 V. r8 W' i receives this signal; display: none).3 V! a6 c7 i: l
Insert Send and Insert Return are electronically balanced and equipped with
0 k. J$ g! O, ^" g XLR connectors.
( k8 W( L! Q, _3 z7 L7 V: s[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or4 F5 c2 B+ E3 C' O
ADAT digital interfaces. Each input channel can be switched to one of the4 L) T; y# Z! N4 C
channels 1...8 of the multichannel interface. If desired, also a mono mix is$ r4 ~$ M: N) S: c: ]% t
possible by selecting the same output channel for both input channels.
l: s! z; e$ y* K! c* }# r6 j' G[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone9 G; V( j4 H3 f1 h
channel.1 w- B E/ O) s. c6 |
Can be operated only if the input gain selector is in Mic position. The
/ G+ J( {/ d0 l Q4 K setting remains stored when switching over to a line gain setting., Z4 [ x; M. `. m5 i( ~, S! Q" |0 u
[12] Activates the high pass filter on the microphone inputs of the desired channel.. Z+ f' R L( w) |
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.- b7 M+ F* |; _
Can be operated only if the input gain selector is in Mic position. The6 F8 T& N, b: }% t- \8 T, @
setting remains stored when switching over to a line gain setting.; e: I" @/ f; \$ f3 r2 {
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
, d0 }. D( ^9 N[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:2 L7 A& J* V1 w
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with! k( I2 ^7 N& ?2 R( q% |+ O' W2 @
Noise Shaping (display: “16NS”) can be selected.
; `/ \$ c1 J& A( t0 \[15] SYNC Selects the synchronization source for the unit. Possible selections are:
: t/ ?3 D; ` c# ^$ k& Z5 B INT 48 Internal quartz reference, 48 kHz: x6 q& b5 K, |; p7 A6 Y
INT 44 Internal quartz reference, 44.1 kHz' d6 L# y w; r7 W; R* N
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)" k6 {) L! o9 o& Y6 D2 H3 F4 ~
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
8 T! M% Y4 a$ R! A9 i0 ]. ^ AUTO Selects sources automatically in the sequence AES-WCLK-INT( _: m, p/ A, d4 o
VAR Indication only, active if the external source frequency deviates from 48 or
. j6 f i, F# O' h% G! O 44.1 kHz for more than approx. ±3 %.
) N5 V0 P6 K1 `7 V( s[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
( S7 [3 T5 j$ w either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
3 c4 r/ w. ^$ v' h `[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce* C+ |" a6 V2 D8 W2 `+ n' k
the danger of overloading the A/D converter with short signal peaks (if; U H( W) b, I
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale, H/ c; R9 e/ i2 p4 j
allowing for approx. 6 dB reserve before hard clipping occurs
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