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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 . _0 |' ^0 e6 R
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英文电子说明书
1 u0 b; [& z1 C) Q! \[1] POWER Switches the unit on or off. The unit is ready to operate with the factory4 \$ L ^( N$ g, M! w" g
default settings. The subsequent settings remain stored in a Flash EPROM
! v" [9 R- p0 `# W2 \$ T" ? after switching the unit off (unit contains no battery).
' |8 F% {" z$ @* G" ~* @1 M |[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
9 v0 d6 ~8 ]7 k, z between microphone and line sensitivity setting ranges.
( K$ T, E" I5 X0 \0 T, [: G5 v Mic: Range –40...+20 dBu
$ j/ y2 M: T( y4 ~3 } Line: Range +14 dBu, +24 dBu' ~" O6 ]4 Q' H" L! Q/ J# b/ s
[3] Fine Gain Potentiometer for fine input sensitivity setting.& z E/ Z3 H2 Q7 C
Range of additional gain: 0...+15 dB.2 H' B2 \6 I1 F* N5 }
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents1 M" e$ b, |8 D8 a) n6 n4 m; q5 \
the dBu value of an analog input signal which causes a full-scale output of
5 i" m4 v) l. p2 V4 D+ } the A/D converter.
+ v" Y7 t6 M$ |0 b4 E9 c Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
$ R7 V3 V" C. Z) F- |; n& f' ]* j! g the peak level is therefore +16 dBu. The “Input dBu FS” rotary4 A) W) j1 n$ c0 M
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
. F8 f$ ^$ i) y+ Z- M p. v Gain” potentiometer [3] increases the gain by 8 dB.; c# g% _% Q/ q' z) f5 }3 E6 Q+ U
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
& R$ S' y6 F3 r[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
2 V7 c6 @: L$ h/ p( y0 c5 A have more body; percussive instruments are less aggressive.6 ~2 B, V: z* r, X* E( M
The group delay behaviour due to AC coupling of the stages is different in
. `$ Q" q' J R* K3 k9 r tube amplifiers.
0 o9 |6 M! P/ g7 O( I The “Bass Warmth” control allows to select the frequency range
: M9 y O3 _; Q6 E- o9 n5 s: H+ N# E* T/ f (10...200 Hz) within which the effect is active.
- Q7 Y) K0 a4 G/ F5 U1 {[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.- \: W( a) G3 E2 b
Valve amps have a characteristic response, mid-frequency harmonic content. T4 P7 `" r3 K4 U) s5 e8 Y* F& _+ `
is emphasized.
2 \! {' i6 s% g- G[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.5 B0 B6 W9 L# b6 h
The harmonics spectrum of a delicately overloaded valve amplifier is completely
) ^2 i' q+ ]1 ~$ F" } different from an overloaded transistor stage.. o6 [" m( I- u6 N: M- N7 g- I
The “Gain” control adjusts a gentle overload while the odd-harmonics content
' D! }7 B, x, j can be adjusted with the “Clip” control.* X% F; [& H$ D1 x
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
' Y. Y! p& p% ^6 e6 _2 N dBu FS.. c% y$ M7 P# E$ }" J& h& B4 `) H" |
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the: j" k/ |1 q I& l
desired channel.
. A' y( P* L, `' f" e: T4 ?3 T The “VALVE” LED is on when the Valve Dignifier stage is active.
2 A$ K) S% A2 A[9] INSERT INSERT function.
' ?- ~9 f0 [, J. n# b1 ^. N First key pressure: INSERT POST VALVE, the Insert Send is tapped after' y" k4 y: V7 G3 h4 r( E/ D2 T8 K' t
the valve stage (display: “INS”); the Insert Return is directly fed to the Line# W, ^5 [! n& E; J% U& o
and AES/EBU outputs.
' v, k% m* r3 K6 C4 o; [" b! z Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
v3 \. s$ H8 y/ n/ T5 R2 U2 S the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
$ V; v. M& h$ s5 p! |. y* E the valve dignifier stage to the Line and AES/EBU outputs.
* E: W( T' q$ _5 E Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
/ f# y1 L8 k3 m2 i, l) c: z stage (if active) to the Line and AES/EBU outputs (also the Insert Send output9 ~) [) c: ~; \0 I; f
receives this signal; display: none).
6 S7 f( |: ^2 O5 i Q9 l' I% o! { Insert Send and Insert Return are electronically balanced and equipped with) V" J& m" d/ F
XLR connectors.
8 ]; u- o8 {. ^) ?, M" i3 U[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or8 m D. R1 R; G
ADAT digital interfaces. Each input channel can be switched to one of the
% A k$ v- W) H, l/ L2 ~ channels 1...8 of the multichannel interface. If desired, also a mono mix is
* O, i2 e# A& D& e possible by selecting the same output channel for both input channels.% \4 u' C2 k! N/ J: H/ l0 X9 `; {
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
8 ~9 H! R( T. B& K$ ]: M channel.0 d5 J( B! R$ n6 _) k! u
Can be operated only if the input gain selector is in Mic position. The4 I# |" W/ P2 U5 X+ X3 L8 H
setting remains stored when switching over to a line gain setting.
, F" M+ T) F A* W5 s2 Y[12] Activates the high pass filter on the microphone inputs of the desired channel.$ M! q% D6 _& K) W, k
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.5 P) S) L# H3 M6 x, }: `+ d
Can be operated only if the input gain selector is in Mic position. The3 r2 [; i# X% W$ {2 r
setting remains stored when switching over to a line gain setting.6 ~* G' k' e, B' f p
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
" `9 J, q1 G% H! {, \[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:% Y G: g4 E9 E& R" v; w
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with8 ?2 r5 f8 o7 j2 { g6 g
Noise Shaping (display: “16NS”) can be selected.6 W% f9 X5 Q+ V+ U
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
% q6 c7 D `( s* x# a9 C0 M7 C INT 48 Internal quartz reference, 48 kHz
& W# ]$ Y1 d0 M7 _8 G4 K6 H/ Y$ j INT 44 Internal quartz reference, 44.1 kHz/ _( ~' ?- F' }; x! M* {
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
" e# c. U/ j; o9 ]* K2 W AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)5 O. j3 A C6 F0 v$ G3 [9 C( d
AUTO Selects sources automatically in the sequence AES-WCLK-INT" t& y2 Y5 E" {* |+ t7 @
VAR Indication only, active if the external source frequency deviates from 48 or" D& K6 O# n f- u- l: {* W, ~
44.1 kHz for more than approx. ±3 %.
, }3 H/ l. z( g[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
, n8 L, F- c& |, K either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.5 i4 D0 s# I w" E. l% K) }
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce \8 ~7 X4 q2 g" d+ A/ j$ s' f
the danger of overloading the A/D converter with short signal peaks (if
3 m# J& k! u; b active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
, O1 Q2 _: _0 Z& \) Q allowing for approx. 6 dB reserve before hard clipping occurs
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