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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 , G8 B* |% c4 F2 b( V
$ j0 Y6 G1 t* \/ v英文电子说明书
0 r: S+ _4 m R7 c* c" a[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
! ^* S6 Z7 t: e; q: I* j4 l default settings. The subsequent settings remain stored in a Flash EPROM
; [3 w& N% A2 j6 G7 n after switching the unit off (unit contains no battery).5 I6 x% U" l* U. m
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
: x" K9 K* M2 p; N2 `. |) h between microphone and line sensitivity setting ranges.7 o1 O5 S5 j& U7 |/ W6 M
Mic: Range –40...+20 dBu8 m2 a# {' G( h+ |' [
Line: Range +14 dBu, +24 dBu* \) G; J2 Y$ Y7 _4 m5 H
[3] Fine Gain Potentiometer for fine input sensitivity setting.
# |' P+ m1 q& Y+ P) H- V6 ?! c; y Range of additional gain: 0...+15 dB.
0 y4 G" }4 T; X" X3 @ Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
8 T, o) Z/ s; d the dBu value of an analog input signal which causes a full-scale output of5 E8 z% X ?7 i9 [$ x* ~( X
the A/D converter.
0 y4 l e) P S2 b* C$ n0 r/ o0 d Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
# c* e0 C' R8 a5 |3 s3 k8 V/ } the peak level is therefore +16 dBu. The “Input dBu FS” rotary6 ]0 z2 K. i5 n
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
+ [0 Z! q2 f D* `+ y( q7 _2 q Gain” potentiometer [3] increases the gain by 8 dB.
8 _$ v$ R* O% U* d3 N[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.6 p2 g8 W2 U0 k' r( V
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
7 @; R3 J& g( M$ X7 U2 ] have more body; percussive instruments are less aggressive.
7 \3 z1 z+ L/ b6 ^ The group delay behaviour due to AC coupling of the stages is different in/ Z' k. V8 |/ b& Y: j
tube amplifiers.$ S0 Y5 n. r6 Q* v$ e
The “Bass Warmth” control allows to select the frequency range
4 Z' ]4 p6 a& x: x" X (10...200 Hz) within which the effect is active.
$ b8 a+ J0 V$ `[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.' {5 q# @# T: P6 t: t' P! V
Valve amps have a characteristic response, mid-frequency harmonic content
0 L `( V0 b. \7 e/ l& X is emphasized., o5 q/ y! l5 `/ F1 N& M# X
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
# c- N9 `! ~3 t2 V: j& Z The harmonics spectrum of a delicately overloaded valve amplifier is completely5 W1 t( i( ?4 E' {& E' l" {
different from an overloaded transistor stage.
0 O9 U# b' z0 S% i+ e The “Gain” control adjusts a gentle overload while the odd-harmonics content
3 U" x- ]( q* p" c7 I* \, ~ can be adjusted with the “Clip” control.& Q2 h) ]9 }0 h) U
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...240 I, @4 ^- C6 ?1 c' b$ ]7 ?
dBu FS.# k2 ^1 j( a4 H, G' v
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the% K& X, {8 i& _* \! q: K
desired channel.
/ }3 b7 t2 _- A; @ The “VALVE” LED is on when the Valve Dignifier stage is active.5 y5 k; f0 }; b. ?) f' o7 F. E
[9] INSERT INSERT function.
: I( A: I* F/ [' R( l First key pressure: INSERT POST VALVE, the Insert Send is tapped after
6 B) O {" c$ m/ V! H T the valve stage (display: “INS”); the Insert Return is directly fed to the Line
( V( ]2 t7 M: g0 ?, q$ P and AES/EBU outputs.
9 v5 g- b8 I; i6 M' E: O! D0 k Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
8 R2 J# V# j$ g- M u' l. d% w* ? the valve stage (display: “INS” and “PRE”); the Insert Return is fed via% x; _* b, a# p& B6 `1 ]6 ^
the valve dignifier stage to the Line and AES/EBU outputs.
8 O, l1 n3 H i" { Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
8 m! [: t3 d/ j' g9 ? stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
N& V# Y8 I/ e, [) Y receives this signal; display: none).
1 D( g% H- o$ C: r4 b) _ Insert Send and Insert Return are electronically balanced and equipped with- c$ R* e. F7 H3 Q+ r a1 D$ J2 ]/ R
XLR connectors./ v9 Y" T3 W0 y- B. M4 R% m X; O
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or# Y! _( }: B. b' g& D7 {
ADAT digital interfaces. Each input channel can be switched to one of the8 O( F3 m$ w8 t* a+ r f: d
channels 1...8 of the multichannel interface. If desired, also a mono mix is
0 e5 Y) i; {4 S% q possible by selecting the same output channel for both input channels.
1 n! V/ G+ v2 \* g) U[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
: S4 b, W( B3 k4 P& k% k. X( n channel.
# a+ q" I) L' V* V2 {1 O! } Can be operated only if the input gain selector is in Mic position. The
0 z$ ?! q, `/ W setting remains stored when switching over to a line gain setting.% U# Q& x5 _2 q2 ^2 b v6 r. V
[12] Activates the high pass filter on the microphone inputs of the desired channel. c3 A; Y( S4 G; J" T( q; P
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.* F. O6 V/ N0 y5 E% Y4 W
Can be operated only if the input gain selector is in Mic position. The
[/ ^6 b% ?$ C. P' v setting remains stored when switching over to a line gain setting.- @1 b7 H; q2 t$ u6 K$ t4 G9 [
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.6 P, W- B, M" J& q5 {: |7 T- H
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
) x7 ]# t% a. a9 z2 x; c) K/ d “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
9 ]3 z P, b1 `; Z. k8 ~6 k( R Noise Shaping (display: “16NS”) can be selected.+ k( ^8 u. g1 I
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
7 f, P0 m7 L5 t5 U( i INT 48 Internal quartz reference, 48 kHz
; t6 x' ^9 G5 ]$ X1 b INT 44 Internal quartz reference, 44.1 kHz, y* ]6 Q& k5 u G" m( F
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
6 l C6 J- f* m AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
8 q8 p1 P& e$ r8 U% _+ P Y AUTO Selects sources automatically in the sequence AES-WCLK-INT/ L" b0 ~0 o R/ B: c7 C/ E
VAR Indication only, active if the external source frequency deviates from 48 or k: C/ Q+ }# u
44.1 kHz for more than approx. ±3 %.+ a& `1 B3 D9 T% j9 W+ t6 x0 F8 V
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
+ A$ W# H$ K5 I/ T. S8 b2 k either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.! P, ]; w0 H$ s( W
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
- d. `4 h; i6 ~6 N9 V. t( | the danger of overloading the A/D converter with short signal peaks (if9 [% a6 s2 A# L5 M3 F8 j8 `
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
2 y. ?1 p- d: Q) I allowing for approx. 6 dB reserve before hard clipping occurs6 c. C8 L: c9 A. u4 I* \
' I0 B, t+ ]& ]6 ?# I, J
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