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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 + @: @( L" b5 j: n, s+ v) J* F9 A
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; y$ w- f1 ~; n4 P) ^8 [7 ?6 r* {5 t英文电子说明书
& ^* E( @7 [$ a' B6 t) M: F9 ]. j[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
7 V+ Q5 W7 V& n- ?( C2 W default settings. The subsequent settings remain stored in a Flash EPROM+ G; j9 M: u0 R1 k) ]
after switching the unit off (unit contains no battery).
2 }9 y. m' @& P) \5 x8 {' k2 M& L[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
3 L+ h b% E) j8 t between microphone and line sensitivity setting ranges.
; y/ {% Z/ s% L! F4 v/ G3 F1 K Mic: Range –40...+20 dBu
) D. x2 f. ^ Z; Z5 Z2 B3 H Line: Range +14 dBu, +24 dBu
! v0 a0 W a: L$ j" {* A1 J( j3 o[3] Fine Gain Potentiometer for fine input sensitivity setting.5 w# u# {) y/ K2 e2 ?; r& }
Range of additional gain: 0...+15 dB.: O0 `+ @! m5 h! D: g
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
P( o# o, G2 L, J$ y, W# S- l" H1 d the dBu value of an analog input signal which causes a full-scale output of
1 K7 F& W# r9 b9 S* q3 F/ D8 d the A/D converter.
; q% H( j7 {) M- }- n' S Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;! S$ O) o1 [5 y4 p/ w& v
the peak level is therefore +16 dBu. The “Input dBu FS” rotary, `7 c' c4 P+ C/ v* _5 W# A
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine' V3 H. L6 s7 n* Q, Y% s
Gain” potentiometer [3] increases the gain by 8 dB.
2 y8 {* m( [2 D, E7 x7 [[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
y% [7 j i0 f[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
0 `- L) h3 C; z have more body; percussive instruments are less aggressive.
- D& X* Q& d7 r. ? n+ Q* Z7 g The group delay behaviour due to AC coupling of the stages is different in0 a" M% |8 O K8 B4 x. X/ R
tube amplifiers.
9 X$ R" I1 j5 d2 g/ w/ ~& V5 k The “Bass Warmth” control allows to select the frequency range! \ j- c1 _- ~. }! d9 P, ?
(10...200 Hz) within which the effect is active.6 C4 z$ z7 A8 B3 b2 A
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
- k' H9 V& I" i0 f Valve amps have a characteristic response, mid-frequency harmonic content
* Q; \8 p1 K0 ~1 H6 } is emphasized.
z0 x" Y6 y* d. q; \. E% q[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
9 j, y# @) \7 \; L The harmonics spectrum of a delicately overloaded valve amplifier is completely
+ K+ _% o3 u! Z& R different from an overloaded transistor stage.: ]: f6 h0 n7 v+ N+ f+ \
The “Gain” control adjusts a gentle overload while the odd-harmonics content2 T: q; `$ g& t% P* ?
can be adjusted with the “Clip” control.2 \3 \1 W( @) i9 n7 {+ c/ f
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...249 @' p7 l; L, {) q% }, G
dBu FS.+ z. F0 Z/ {6 ^
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
- t9 J# P4 S4 u! I% O; m desired channel." h3 [ A" f+ `% O& ~; M
The “VALVE” LED is on when the Valve Dignifier stage is active.
3 k: y: Z+ o8 g- f[9] INSERT INSERT function.7 P& Z4 W7 L0 a# }5 f
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
: p* C, q8 K: C9 u, U: I3 t3 i9 K the valve stage (display: “INS”); the Insert Return is directly fed to the Line
. G5 V0 e& F% V: Z and AES/EBU outputs.
$ M B! l) k+ l5 n Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before* X! b5 F2 C$ f/ I. z3 J5 _
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via' t- A: N1 j7 G& {6 e1 q
the valve dignifier stage to the Line and AES/EBU outputs.% j" p5 n1 Q: C9 L& s, u# d/ M
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
' o* v9 ^# L/ O1 b( U7 `; v4 h stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
) g& X' I1 L& W8 d" b receives this signal; display: none).3 L1 B* B8 J: m7 M
Insert Send and Insert Return are electronically balanced and equipped with
# K6 H/ x, }* s( f$ i) [ XLR connectors.# Y$ Z' Y- w" P }
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
$ F& ~* q7 `2 j; B ADAT digital interfaces. Each input channel can be switched to one of the
! p/ H9 a5 U* Y# c- b channels 1...8 of the multichannel interface. If desired, also a mono mix is
& G* V8 Y u- y+ b* r Y possible by selecting the same output channel for both input channels.
# b% t! @' P% Z- q2 T! v8 O[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
; t8 M7 l M1 H' s channel.+ h! z. A) F+ g- K0 E* o1 A
Can be operated only if the input gain selector is in Mic position. The! F0 |& T$ R, K- L5 E
setting remains stored when switching over to a line gain setting.4 N9 L! I, P0 j0 {! f$ s9 f
[12] Activates the high pass filter on the microphone inputs of the desired channel.* R' P$ k8 y- Z& _
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave./ U- ?1 f, n I# y' t
Can be operated only if the input gain selector is in Mic position. The
; y. f; N* z. i) u/ }* f( x setting remains stored when switching over to a line gain setting.
8 ]1 S7 N8 Q: X: h2 _; j4 U[13] Ø Toggle key to activate the phase reverse switch of the desired channel.% h3 }/ E) d6 ]" n9 S
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
0 O2 K" y: j4 c1 }* O9 L “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
7 U& q; e$ g) O0 |6 Q8 v Noise Shaping (display: “16NS”) can be selected.: D( N) x' Q# @5 t
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
; p6 \, \( [; d; A* S! G INT 48 Internal quartz reference, 48 kHz5 G9 d- p; k$ @6 B* L4 s9 B [
INT 44 Internal quartz reference, 44.1 kHz
a# h4 s4 Y, X5 d2 l, @, v- M WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized). ~* y, T! T/ k( o( R! d* \
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)! f+ B) r: l4 @ @/ H# ^5 s
AUTO Selects sources automatically in the sequence AES-WCLK-INT
7 |/ C/ T2 J" O/ K/ Q; W& |' V7 M VAR Indication only, active if the external source frequency deviates from 48 or
( b9 P, P" x: Q# D) f6 { 44.1 kHz for more than approx. ±3 %.
$ U4 i* r5 _4 N- B/ K/ c! S% i: X[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –3 E9 }6 `- {$ ~; m* H
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
, g% s1 H" ]. E2 o x( A[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce% B+ P5 M9 e0 b* I7 ~
the danger of overloading the A/D converter with short signal peaks (if. j% E9 [" ^- `0 D8 q
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,. J$ C- R2 Q2 r# S- ~1 G% R
allowing for approx. 6 dB reserve before hard clipping occurs7 T( |( \8 P: S6 A( B, T
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