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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 ' T* Q6 Q! f! v! Q* e$ n9 f# o: |
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英文电子说明书1 x g, A5 c3 r
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory: D5 M3 z5 I0 x0 f0 B
default settings. The subsequent settings remain stored in a Flash EPROM
4 q) l# B/ `( ] W8 K5 P after switching the unit off (unit contains no battery).
/ ~ V+ ]" c; [' H( ?[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position0 i9 m2 p1 N& h1 ` |* t
between microphone and line sensitivity setting ranges.
. `, Y, D3 D7 }* {* \! X Mic: Range –40...+20 dBu
9 h/ C% h. p; j8 w4 p5 M Line: Range +14 dBu, +24 dBu8 {9 V8 L7 T/ e% F
[3] Fine Gain Potentiometer for fine input sensitivity setting.6 q# h$ v% A6 ~. M; `
Range of additional gain: 0...+15 dB.3 Q; I! L4 C% k; r3 Q
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
$ u% C. x# g' T# K' g9 W! }8 `! [6 o% s the dBu value of an analog input signal which causes a full-scale output of
) |" L6 j. E& X0 N, l4 ^& E* O the A/D converter.
! R/ {# c6 ^" a/ N: w Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
* F/ o6 Q4 S# J, i( }; Z the peak level is therefore +16 dBu. The “Input dBu FS” rotary, q4 ~( X7 T7 p+ l* T6 R
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine; ~3 v4 j3 X3 S
Gain” potentiometer [3] increases the gain by 8 dB.
y5 u2 T: c# ~! A6 ?4 i" W, _[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
2 { H; p7 e2 F1 }[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
2 p- }' s e' G0 N2 C. q# n have more body; percussive instruments are less aggressive.! u+ |6 A9 a- C
The group delay behaviour due to AC coupling of the stages is different in8 ]0 B% _4 ?4 T% T3 p% l- g
tube amplifiers.2 N ~' B: S+ j4 k, p/ Q3 h6 C/ S3 H5 x
The “Bass Warmth” control allows to select the frequency range* X0 D. b* G9 g: Z' m
(10...200 Hz) within which the effect is active.
* c, u* G* y) {' n! p# Z, L; E/ J[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments. c5 E* Y5 [' e4 g, x9 }
Valve amps have a characteristic response, mid-frequency harmonic content
' q) j0 _* h( n2 B" _ is emphasized.; d9 I; d/ F2 J) o
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.! X& r7 ~2 \ |0 v
The harmonics spectrum of a delicately overloaded valve amplifier is completely% Z! Q& J- ]! N7 y6 Z
different from an overloaded transistor stage.& ]. P" C5 }2 |7 }9 a
The “Gain” control adjusts a gentle overload while the odd-harmonics content" L7 h+ G! q& D: ~
can be adjusted with the “Clip” control.. Y1 k* ]- u8 e' R. d
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
# H$ d' Y0 g: ? dBu FS.
8 K3 P' M" _3 ?" J/ J7 H. U[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the! H5 \; a6 i/ z0 K/ c
desired channel." X' g3 @/ N% p7 S+ {% n" M
The “VALVE” LED is on when the Valve Dignifier stage is active.
7 R7 b8 A4 V( ], j5 ~) r* J8 F[9] INSERT INSERT function. d/ [% z0 \3 D
First key pressure: INSERT POST VALVE, the Insert Send is tapped after! P, n9 l+ |. N6 [7 b: @
the valve stage (display: “INS”); the Insert Return is directly fed to the Line: j7 c1 C. |' G, k% f2 y1 V
and AES/EBU outputs.
0 P; ~8 h. u1 S [. e* o Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
7 V, p4 F! }6 C, Z8 y- k the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
H: c2 k( J0 [# \1 G; @0 } the valve dignifier stage to the Line and AES/EBU outputs./ m* @" H l2 O% L. p
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier' ]; L3 F6 }2 E* V( E" O
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output6 W1 z) Y$ ?9 |: o0 y: l5 Y
receives this signal; display: none).
# Y$ Q# V! \9 D Insert Send and Insert Return are electronically balanced and equipped with! K# \( Y9 k0 f8 ~
XLR connectors.4 }0 U6 c1 M. b. x: V
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or( ]9 j( T h& R1 Z+ }
ADAT digital interfaces. Each input channel can be switched to one of the: W3 j( c% b, d4 {+ Q" \' r! [
channels 1...8 of the multichannel interface. If desired, also a mono mix is% ^& G8 A. }: y) Y- _3 m
possible by selecting the same output channel for both input channels. Q3 F$ ^. u0 l' ~- I
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
! \! x9 d* q* K+ L6 Q7 [ channel.
; {8 X' I6 t. Y$ @$ J Can be operated only if the input gain selector is in Mic position. The
! l; W% C# H$ R3 j% q0 ` setting remains stored when switching over to a line gain setting.. k# s+ m1 J4 U4 U! w) D
[12] Activates the high pass filter on the microphone inputs of the desired channel.
y; V6 O% `. b4 v* ] Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
" r4 B! x# H, x' I Can be operated only if the input gain selector is in Mic position. The( [# o$ N! I8 _3 f: W: @+ t
setting remains stored when switching over to a line gain setting.
1 c @! {3 [+ t$ T[13] Ø Toggle key to activate the phase reverse switch of the desired channel.3 i$ a3 V) W( \+ n$ A$ y* d5 s1 |6 n
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
K- U/ ?: {& P; E4 G “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with, [/ v8 _8 c" w3 t# e
Noise Shaping (display: “16NS”) can be selected.
0 l0 `" c2 J8 n[15] SYNC Selects the synchronization source for the unit. Possible selections are:
" f: w; C3 Q' f INT 48 Internal quartz reference, 48 kHz0 O3 B& v+ `$ h1 f
INT 44 Internal quartz reference, 44.1 kHz
: H% U& [7 Z) ? WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
9 H$ u! g, Z1 v; O AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)3 n* s) g0 o6 E: v! \) Q
AUTO Selects sources automatically in the sequence AES-WCLK-INT
& c3 R* N, \2 R6 r9 x# O5 m. S VAR Indication only, active if the external source frequency deviates from 48 or; \1 I8 W- d5 C Z
44.1 kHz for more than approx. ±3 %.
- N& Y* r A% e) b8 I[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –, V x6 Q i7 Q6 O
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
! h' h) l% n. ]$ o7 U. v5 l# G[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
" c7 K$ c1 I6 a the danger of overloading the A/D converter with short signal peaks (if! i% M0 ?6 I( {( l7 C1 U; O/ G
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
0 e9 H! Z" j9 B5 ^- v# n allowing for approx. 6 dB reserve before hard clipping occurs
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