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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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5 m, o! }. u( b( x i6 T# T' z英文电子说明书
& R" f* s- @! ~[1] POWER Switches the unit on or off. The unit is ready to operate with the factory$ M! A5 f( f% g5 H7 J0 d$ C
default settings. The subsequent settings remain stored in a Flash EPROM' H3 z- Y4 B% T4 s
after switching the unit off (unit contains no battery).- r. Z- q8 h+ L Q& F; q
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
+ H( d. m( X% o, x, P1 F+ i between microphone and line sensitivity setting ranges.
( [0 L0 a3 Z# h0 i$ ~. g Mic: Range –40...+20 dBu
- m/ f. a& p$ g8 H4 H) L* R Line: Range +14 dBu, +24 dBu/ @8 R% r$ r: d, i
[3] Fine Gain Potentiometer for fine input sensitivity setting.' k4 d" q, o, H x0 e( R, L* [8 f5 M
Range of additional gain: 0...+15 dB.0 _3 z! ]# J0 A2 A8 b
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents2 a9 m' k4 z. |8 q4 A& b1 Y) B
the dBu value of an analog input signal which causes a full-scale output of
* M: ~# f7 G, ~8 u# l the A/D converter.7 p' ]; `4 m4 A, X }: I3 a. v
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;1 o, y1 d# `; d
the peak level is therefore +16 dBu. The “Input dBu FS” rotary4 ^3 n8 a5 T) K6 y: X
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
. t. ], m: |( Y7 q9 w8 n Gain” potentiometer [3] increases the gain by 8 dB.0 K8 {4 J+ X3 G4 ~7 x7 R
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.7 b9 L2 o( ^- i& \, R
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals( ^3 u" E0 u" j! Z% v
have more body; percussive instruments are less aggressive.% j7 e' n4 B' d" H2 y) T
The group delay behaviour due to AC coupling of the stages is different in
. {5 ^! M. n, a9 ^8 Z+ k tube amplifiers.' C* ?0 `! C7 E L( N
The “Bass Warmth” control allows to select the frequency range% m) q5 [/ n3 y6 E/ C
(10...200 Hz) within which the effect is active.# g" g+ i0 W" _/ ^( u; A" }! m
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
- H$ U3 n7 d: s1 ~5 v% @6 K Valve amps have a characteristic response, mid-frequency harmonic content% Q; B* Z! u% N- c; p- G+ [% \
is emphasized./ C7 {, b+ |1 j( Y
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer. m7 s+ o* x+ ^/ v% q7 ]
The harmonics spectrum of a delicately overloaded valve amplifier is completely
; o/ E2 O' O3 n9 P2 _( [2 Q different from an overloaded transistor stage. d8 R/ U$ t( Z! P$ l, ?3 K
The “Gain” control adjusts a gentle overload while the odd-harmonics content
8 D, L" e* h) t t can be adjusted with the “Clip” control.% g) d9 J( i; s9 G+ e) c% c. f
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
0 J( A$ ~2 q i) |. Z dBu FS.
0 Z* }) w2 r! `0 ]) u[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the, \4 X+ T1 W+ j9 T& U6 Q7 u
desired channel.
4 C5 W# ]- Z2 v. ~6 ~: \ The “VALVE” LED is on when the Valve Dignifier stage is active.
& I+ O" b' T% \. r+ |- v& o8 A[9] INSERT INSERT function.. @1 \5 x/ t+ ~: \) R2 J
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
* I4 k8 N% J Z2 i0 Q the valve stage (display: “INS”); the Insert Return is directly fed to the Line; g: F$ w5 t3 ?9 p& @
and AES/EBU outputs.7 L5 S# k7 _; x8 J- H
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
+ h9 h9 J y$ L: q1 v' e the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
l1 s& }& R- d, Z the valve dignifier stage to the Line and AES/EBU outputs.
9 Y$ Q& X1 O/ }1 H Third pressure: INSERT OFF, the input signal is fed via the valve dignifier {- C8 r2 @" E' z" S, C$ S+ ^& T
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
4 i0 {+ h6 [% h5 G% Y" s receives this signal; display: none).
& x% C4 `- l; Z; F# ~( J6 P' F Insert Send and Insert Return are electronically balanced and equipped with
# o( V) c- k1 y# b. Y/ H1 y XLR connectors.
7 K/ x( }3 t& Z3 f& m[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
& s4 D, ~2 k# d: v. \% ?2 }7 n ADAT digital interfaces. Each input channel can be switched to one of the. `5 t4 \+ q# H1 y x) [5 o
channels 1...8 of the multichannel interface. If desired, also a mono mix is' U8 \" `) K5 T
possible by selecting the same output channel for both input channels.
1 f+ W/ m8 C0 y* `$ z" o[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
5 ~6 q( O; s% q channel.
- s% ^% T; h' F: ]. ]6 C Can be operated only if the input gain selector is in Mic position. The) n- r/ j, o& Y* [7 W6 _
setting remains stored when switching over to a line gain setting.( d& o0 f& \, J& P4 P4 k8 p& g \
[12] Activates the high pass filter on the microphone inputs of the desired channel.0 @. p1 l6 {" |( t/ F+ b
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave. W+ z9 U# M' v L7 A0 B
Can be operated only if the input gain selector is in Mic position. The% E1 O7 }- }1 z. u4 y; Q* k( h7 ^) j
setting remains stored when switching over to a line gain setting.
$ X1 ~6 f. V- o8 a' s[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
# u( P3 V3 [3 j5 R[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:, Q; [# s' ^# P' f6 i; s
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with' ?% m0 d: j+ p$ q/ S
Noise Shaping (display: “16NS”) can be selected.+ |; H, J' I, l/ B! `& b2 P
[15] SYNC Selects the synchronization source for the unit. Possible selections are:' C% S( }" F8 O
INT 48 Internal quartz reference, 48 kHz" a3 Y B) S- W! k
INT 44 Internal quartz reference, 44.1 kHz" _0 |" K# |, U* S1 f
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
" s2 O+ D5 ?: e! G# Q! d8 h AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)4 e8 P- `+ H! P6 ~- `# D
AUTO Selects sources automatically in the sequence AES-WCLK-INT
6 L0 b2 G1 u0 f S2 r VAR Indication only, active if the external source frequency deviates from 48 or
1 |/ M& G$ }- \2 X7 c, M: t3 F 44.1 kHz for more than approx. ±3 %.
& J9 t- l' G" t; X" \2 i; ?[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
3 Z' g7 V! C+ P! i1 ^+ T' d2 N either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.% a8 e5 R* Y* O7 A+ g0 E! m& w. e& Y
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce4 T, y7 P) e# g$ Y
the danger of overloading the A/D converter with short signal peaks (if
: y9 @+ U5 ~: z; z7 {$ \% _1 F active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
6 ]1 I8 B8 y6 l3 n, T allowing for approx. 6 dB reserve before hard clipping occurs
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