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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 6 E) Y9 Q" a c# b5 F
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英文电子说明书
0 F; E* |+ q, U* [% A[1] POWER Switches the unit on or off. The unit is ready to operate with the factory( u# U- P9 E- E# _% ]) _
default settings. The subsequent settings remain stored in a Flash EPROM
7 d/ Q0 m( N/ K5 b9 e/ {& n after switching the unit off (unit contains no battery).
. e W& l$ w! C: w b+ J* ?" [$ f[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position8 f. y2 h# E) U3 C% ?. m7 l# g' X
between microphone and line sensitivity setting ranges.! m* h' n9 A+ O8 }% L
Mic: Range –40...+20 dBu. ~7 J8 J$ z$ [
Line: Range +14 dBu, +24 dBu; [+ b% K! O/ V1 B9 P3 L6 z
[3] Fine Gain Potentiometer for fine input sensitivity setting.
3 A2 t6 k" L5 C; j* l5 F Range of additional gain: 0...+15 dB.$ x& T8 P0 Y; n
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents, Q9 m/ |4 q2 M' w6 ?% W- U& I8 b
the dBu value of an analog input signal which causes a full-scale output of' g+ O% w$ F# M1 T5 ]
the A/D converter.; t$ F+ }+ C& n: ~1 L% g
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;- E) f+ q; |" X5 I# G& [0 U D
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
9 v" s* z- C. z# v/ C* r& ^ switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine, n4 J+ }- X, o5 O3 p! [
Gain” potentiometer [3] increases the gain by 8 dB.
6 d) u6 r; P' f[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active. G4 Y" t2 J/ r. O( U
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals7 R0 Y, K8 ]' T" B
have more body; percussive instruments are less aggressive.
8 P: n- U# Y' \/ F, `" m% C The group delay behaviour due to AC coupling of the stages is different in
: s; t9 [+ I K% Q/ y) V tube amplifiers.0 l) k8 Y0 E% G: S) b' ?9 G
The “Bass Warmth” control allows to select the frequency range+ Y; v, K$ r. h' o1 }+ x! i6 O
(10...200 Hz) within which the effect is active.
3 Z" h! V& X1 f7 C; X, Y1 }[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
! D% k2 M& u$ ]4 C" _ Valve amps have a characteristic response, mid-frequency harmonic content
/ S: A3 ^6 {7 A is emphasized.( Z v* a; G; K0 O- N/ b
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
8 I: i6 T! ^% i7 B! d0 r The harmonics spectrum of a delicately overloaded valve amplifier is completely
, e, V8 W# U1 C. T7 I, A M different from an overloaded transistor stage.: s0 F6 j3 e7 N1 o
The “Gain” control adjusts a gentle overload while the odd-harmonics content
! h4 g( Y E; t8 t2 Z1 S( v can be adjusted with the “Clip” control.' }# g: X6 M# p+ v+ I
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24$ @- n l2 D2 H1 S0 f5 g
dBu FS. w1 V+ X! u, Z4 h
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the1 P7 s9 X& ^+ x" O' S, x4 {1 \
desired channel.
% D* \6 Q) [2 u& e3 E The “VALVE” LED is on when the Valve Dignifier stage is active.
. ^4 b5 H( X+ R' v0 n- l[9] INSERT INSERT function.6 \5 a. G) @+ @/ X$ E3 q
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
- O1 b6 t3 ]9 }- l" _$ F3 ^ the valve stage (display: “INS”); the Insert Return is directly fed to the Line; ~9 {9 j7 @! R8 B
and AES/EBU outputs.
% r- V# L3 J3 P r' q$ ^, o% Z7 } Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before L2 x" D; ^4 k8 D0 x
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
! Y" A G5 k* d0 @$ h+ p the valve dignifier stage to the Line and AES/EBU outputs.4 w" o! c) d% F$ w; E
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier% ]) T8 O7 r* ^. o
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output8 S" F' k' u0 y
receives this signal; display: none).
/ y: @9 ^8 P5 ?, g4 o0 x- \% J Insert Send and Insert Return are electronically balanced and equipped with/ Y5 z2 z0 z( |3 Z; Z
XLR connectors.( C5 O; M$ p/ x- \
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
# p3 ^" b( V6 K4 T5 S, K6 T k ADAT digital interfaces. Each input channel can be switched to one of the
3 _9 @ w; x+ Z6 E; m channels 1...8 of the multichannel interface. If desired, also a mono mix is t- t7 W' e: x* P6 Z+ W. H( ]7 j
possible by selecting the same output channel for both input channels.
9 U8 r) ` X% [[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
. I9 A! Q$ ~; v channel.
+ ?" t( G& |& G; L( m7 `' e Can be operated only if the input gain selector is in Mic position. The% s4 _) K& r% K. |) k' T6 ^0 h, o
setting remains stored when switching over to a line gain setting./ f0 e6 i* j( z
[12] Activates the high pass filter on the microphone inputs of the desired channel.! j9 m2 L! n' }/ l9 b+ W) K ]
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.9 s* z9 m$ T5 S, E0 c
Can be operated only if the input gain selector is in Mic position. The
2 {) |& D ~. N k: j setting remains stored when switching over to a line gain setting." d$ ?2 k+ e H- p
[13] Ø Toggle key to activate the phase reverse switch of the desired channel. I! c g& K+ \
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:" c% N, A, v" m. q
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
8 r( _+ u0 ^2 J$ ?+ I* G Noise Shaping (display: “16NS”) can be selected.+ [9 V/ V' X: c3 Q' S8 ]! h
[15] SYNC Selects the synchronization source for the unit. Possible selections are:& g" H7 t) T y e
INT 48 Internal quartz reference, 48 kHz
! ^4 l7 C; y" H+ Z/ D* I INT 44 Internal quartz reference, 44.1 kHz
9 v* T- X; P" k% O9 @0 q. S WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized), h5 v) s0 Z# G
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)5 ?, F% ]2 m2 _0 f! N' _$ Q G
AUTO Selects sources automatically in the sequence AES-WCLK-INT
+ R5 L, f @9 l) J" z VAR Indication only, active if the external source frequency deviates from 48 or
7 G1 R4 D% Q. e; H( M' e 44.1 kHz for more than approx. ±3 %.
, J! K5 f8 U, t1 g) M9 d G: V[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters – ?: x! P7 {/ U7 `! _9 D
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
* G3 l% ^) P' G/ O[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce2 d7 Y' c; @$ L9 a3 U1 s8 V: d
the danger of overloading the A/D converter with short signal peaks (if
, o9 P B4 z% E( V) h( A+ w3 `9 T active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
: ?: K8 N4 }% v- e# X allowing for approx. 6 dB reserve before hard clipping occurs
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