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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
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英文电子说明书/ U6 ]2 w" R. o
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory- t5 B% p9 H; L/ S& r
default settings. The subsequent settings remain stored in a Flash EPROM. C) G1 p/ i4 V' v2 p+ v
after switching the unit off (unit contains no battery).
* M$ @! [2 {: T8 o$ L! K: H4 N[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
6 O) Y* I' k- X* W0 h5 l+ w. A between microphone and line sensitivity setting ranges.5 ?# |, k2 E; L- K1 R: d1 k+ h Q
Mic: Range –40...+20 dBu5 n' T% Z' s8 y8 J8 r6 ^" j
Line: Range +14 dBu, +24 dBu: N0 L J/ x7 ~ l2 H8 K
[3] Fine Gain Potentiometer for fine input sensitivity setting.3 ]0 @4 e+ ~, s6 ^. n. a
Range of additional gain: 0...+15 dB.
4 h" w9 a( p/ u$ Q, ?/ z- K, }& u Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
% x* n( w5 k0 w the dBu value of an analog input signal which causes a full-scale output of
; X k, p- U1 P! W; j/ x& B the A/D converter.. O$ H0 o4 q+ r+ G/ r
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
; p3 q# B0 ]5 C! {5 e2 V' a the peak level is therefore +16 dBu. The “Input dBu FS” rotary
, r" i( R9 ^0 J- Z- m1 y switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine0 ^) X. [) t6 T. ~% |
Gain” potentiometer [3] increases the gain by 8 dB.
' K% s9 {5 s, p" ][4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.$ _; R; y% W. L( `) H# d0 z$ H! G
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
9 }* ?( Z( g7 O' }# l+ Q9 c$ ~ have more body; percussive instruments are less aggressive.
* M+ O9 R* k$ Q8 I/ ^& |+ b4 E1 k* r The group delay behaviour due to AC coupling of the stages is different in1 ^! e( p6 ?$ o. X
tube amplifiers.% y- u: R' P6 k+ H+ o- t
The “Bass Warmth” control allows to select the frequency range, m( @- s6 C1 H1 Q! R& G0 c/ F
(10...200 Hz) within which the effect is active.
/ G( L/ m& |3 L3 z/ N7 A[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
" M+ j: _% w, a5 u Valve amps have a characteristic response, mid-frequency harmonic content3 f' z7 M1 @3 U3 w- [% [% M' w
is emphasized.6 ?# z3 Z6 Q" K1 g# f7 R
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.' o9 r4 A; g2 N/ B) _8 ~; F- g
The harmonics spectrum of a delicately overloaded valve amplifier is completely
5 P F0 R% E/ \ Z/ B7 ^ different from an overloaded transistor stage.
$ D: t- R9 x- L9 |0 _. y The “Gain” control adjusts a gentle overload while the odd-harmonics content
- K( Q" s( y: u2 ? w. N can be adjusted with the “Clip” control.7 b5 B+ h$ q4 k) H$ p) I* {% J
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
4 e2 Q1 U* H% r$ }& e dBu FS.
( m: O @+ `1 ?; c* N8 z" G7 @+ R[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
3 S/ Q. l, n# v" Z desired channel.) S6 E- g- W8 V
The “VALVE” LED is on when the Valve Dignifier stage is active.
7 x- F$ T9 J# C. b7 o3 z: L, i* \[9] INSERT INSERT function.7 `3 [. p3 ]# d. C2 h3 D: p0 r
First key pressure: INSERT POST VALVE, the Insert Send is tapped after3 A2 i1 ]' {$ L
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
4 m' ]) B" l+ K: } and AES/EBU outputs.
; w+ g: b o! i1 d' j Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before7 a% K7 \1 l2 z5 U/ k
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via8 S5 o3 v, u6 A. g. D1 T
the valve dignifier stage to the Line and AES/EBU outputs.. E" ?4 Y0 k8 ~% \0 b: }1 U- w
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
/ c. H& Q2 ~; ^7 p8 ]' y stage (if active) to the Line and AES/EBU outputs (also the Insert Send output" P0 Z% a; U. M$ a/ h) f% ^
receives this signal; display: none).
$ i5 C9 _4 \% h. F( W7 K Insert Send and Insert Return are electronically balanced and equipped with8 a( U2 b, F& n/ m# ?+ o1 O
XLR connectors.
1 b/ t3 k: M) Z2 U( k. }8 C1 Y7 d[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or% C8 K/ V8 m) W( K) A) l1 |3 U7 t, f5 K
ADAT digital interfaces. Each input channel can be switched to one of the
0 ]& X( q, j- c% ` channels 1...8 of the multichannel interface. If desired, also a mono mix is8 V: Q) S! B* u
possible by selecting the same output channel for both input channels. K) I: V0 s* c3 M9 F- L
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone8 m# [7 K p; F) d2 K+ ^# f
channel.
: P. T/ f& |8 i, P6 K Can be operated only if the input gain selector is in Mic position. The$ m* o- U% O6 j4 G. _2 t. p
setting remains stored when switching over to a line gain setting. R3 R/ V9 S( M0 t3 i; N" D3 R
[12] Activates the high pass filter on the microphone inputs of the desired channel.# i" m2 ^' j6 G1 u; u: \- ?
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.1 M/ O, S3 E+ f/ |. H r
Can be operated only if the input gain selector is in Mic position. The
, Y* p) o- `- M$ ?8 p setting remains stored when switching over to a line gain setting.
! q8 I0 L; P* { J9 X& t( s- n[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
1 e9 G( h) D* k' Q0 c[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
2 n& }/ e. I& s2 i: \8 o0 q: t% l% | “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with; X2 p% K7 U# O! X" S5 I
Noise Shaping (display: “16NS”) can be selected.3 x* A8 M' H+ X6 G6 o
[15] SYNC Selects the synchronization source for the unit. Possible selections are:0 S7 z2 b- ]6 T+ n& K
INT 48 Internal quartz reference, 48 kHz
4 Q' w0 S. o; g @6 k% i8 l" z INT 44 Internal quartz reference, 44.1 kHz* y! ~! E& V9 |' T4 M. {1 k9 X
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
8 B2 ]# Y# p% H" V- a. j, b AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
' g7 a6 L& d8 X9 X- P AUTO Selects sources automatically in the sequence AES-WCLK-INT
, ~% N$ l7 h* |) |- C/ Y# R) _0 T VAR Indication only, active if the external source frequency deviates from 48 or
3 \9 \* y' B8 O+ _& m 44.1 kHz for more than approx. ±3 %.
- w* d2 r) w7 V[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –6 ~) O: p6 p5 S& g) H4 u
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
- G: M) a# u/ w, m ]; ~[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce" |# B& J( g, x
the danger of overloading the A/D converter with short signal peaks (if% }: G6 a- o8 \4 q0 \5 U" s
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,1 D) @" l) ~0 D( d
allowing for approx. 6 dB reserve before hard clipping occurs
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