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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 ^. M0 Z8 K, g. D" y$ c# _! G0 T
& z0 [2 g( V5 n% r' }2 _; r! w0 a英文电子说明书+ I9 \* U: x: x0 m( q
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory1 ^. t) C' i1 {( U- x' c7 E& E; D
default settings. The subsequent settings remain stored in a Flash EPROM
+ n9 g$ J8 ~9 l6 }: Z( y$ H/ @8 c after switching the unit off (unit contains no battery).. h8 A/ E+ d0 a6 v j
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position; l- T$ S; s' E( B1 N8 p
between microphone and line sensitivity setting ranges.
0 S: {/ F- y" } Mic: Range –40...+20 dBu% s+ a, t& ^) b* r" g
Line: Range +14 dBu, +24 dBu9 R/ j) k& a# O" S
[3] Fine Gain Potentiometer for fine input sensitivity setting.
7 m3 f3 n( e- D& o% N: | Range of additional gain: 0...+15 dB.
; b# v* n) k" d, F5 D, x$ G Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
( `. s7 B2 H( j& | the dBu value of an analog input signal which causes a full-scale output of) Z, s; i% R* i+ {, C% _* [& W
the A/D converter.) b# s$ B4 p8 {% ~4 L9 q
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
+ b" o4 }. ?4 r3 I9 P9 F9 s- r9 r' i the peak level is therefore +16 dBu. The “Input dBu FS” rotary
& M& m0 @5 ?$ r* b( { switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine1 m9 s9 P- F5 Q6 w9 N+ `
Gain” potentiometer [3] increases the gain by 8 dB.: `! c" O$ d* Q
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.: D1 D$ ?0 s" {: ]. N
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals/ q1 u- M. X H- |5 m8 |
have more body; percussive instruments are less aggressive.
. v, Z+ A* P2 q$ p The group delay behaviour due to AC coupling of the stages is different in
& i+ j. d. a S tube amplifiers. e/ h3 R7 V2 m: Z! V. v3 k& z
The “Bass Warmth” control allows to select the frequency range p/ l* X" y& p0 J/ d; o
(10...200 Hz) within which the effect is active./ V: S5 v- P7 m3 T4 s
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments., f# I2 I" E# ]+ o# U- C
Valve amps have a characteristic response, mid-frequency harmonic content- V7 \5 ^& A; }
is emphasized.' T8 O8 J5 N- T" r% Y
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
+ \# Y, u1 f9 c# W* i6 `; }- S The harmonics spectrum of a delicately overloaded valve amplifier is completely
4 r: w7 v# `# R' h! A9 c7 p different from an overloaded transistor stage.! L; O& O/ E3 m+ B
The “Gain” control adjusts a gentle overload while the odd-harmonics content1 }2 a& V) J* L# V \
can be adjusted with the “Clip” control.. O/ e* i4 A/ Q) e0 T4 }7 y) J! d
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
( }- |: ~7 w1 Q. ^ dBu FS.
/ ?. N# x0 Y( u# u7 l3 r[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
- ?5 v4 K1 l1 H# M% S# D* W( D2 | desired channel., E4 a n! {& u; Q4 ~9 E0 _1 _
The “VALVE” LED is on when the Valve Dignifier stage is active.( G" R# |& V5 M/ q; o3 Q7 F& J+ N% ]
[9] INSERT INSERT function.- S* _9 r/ ]: e3 n% e
First key pressure: INSERT POST VALVE, the Insert Send is tapped after( R" r: J* w* a$ ^ b
the valve stage (display: “INS”); the Insert Return is directly fed to the Line' W: X5 b) l$ c) Y6 ?) ^
and AES/EBU outputs.. ?5 H& Q2 M9 a
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
8 l1 Q8 ^5 }% p" L( s the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
6 V* q& a' Y) S- `9 q/ j the valve dignifier stage to the Line and AES/EBU outputs.
+ D' Z& n: F8 Q Third pressure: INSERT OFF, the input signal is fed via the valve dignifier# G4 _8 \& y, h" L, j" T
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
\9 d/ q+ _& T: @1 T receives this signal; display: none).( r# v! U+ F& u3 x. b, E
Insert Send and Insert Return are electronically balanced and equipped with% d( W3 y) @0 {5 b1 ]$ {; ^. T( v
XLR connectors./ f, J9 J% Z1 m" E9 ~# }& _, E
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or; d* k/ C3 z. r5 G
ADAT digital interfaces. Each input channel can be switched to one of the
* Q5 `' e9 @3 k0 L L: m' S4 k channels 1...8 of the multichannel interface. If desired, also a mono mix is9 [; Q# g) ]2 ]
possible by selecting the same output channel for both input channels.
7 R5 s* r7 b6 A( R9 ?- f( n[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
" n0 X# g. E6 C Z# ~ channel.- _7 N h5 U ?) f5 A% {( c
Can be operated only if the input gain selector is in Mic position. The
+ A/ _) l" o2 H' r$ g) ?1 r+ _ setting remains stored when switching over to a line gain setting.
" w4 {' k: Q% D, P[12] Activates the high pass filter on the microphone inputs of the desired channel.
: M P1 J; V, W Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave." | n; w4 k6 x* F/ L! Z3 J
Can be operated only if the input gain selector is in Mic position. The' e5 Y% j- _6 e5 Z! B# {& g
setting remains stored when switching over to a line gain setting.
% z3 \* _, j* h; H+ X[13] Ø Toggle key to activate the phase reverse switch of the desired channel.8 k X! g! U+ h9 C7 G9 W
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
1 P+ I' D8 }" n J, K% B “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with6 M6 u* o- ~% c
Noise Shaping (display: “16NS”) can be selected.. x7 B& U% n% B; f: W
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
( H U, F0 Q3 m5 @ INT 48 Internal quartz reference, 48 kHz6 ~0 b5 y# a: c9 Y9 W" i. d
INT 44 Internal quartz reference, 44.1 kHz, |- ?1 I/ o4 X. ~/ m# ~
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
/ `" k o# T, |8 O- o AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
( @( }) Y9 ]2 T AUTO Selects sources automatically in the sequence AES-WCLK-INT
9 p% r0 K+ j# @ VAR Indication only, active if the external source frequency deviates from 48 or7 c1 P" r" q2 C, U# i/ Y0 e
44.1 kHz for more than approx. ±3 %.
. z* a" F9 R6 y! y, c- C- m[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
c4 u& ]* K; }9 w: v' r; A either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.; k" h: \2 U' V) i: a/ L" w
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce6 }$ a9 |: B8 ^, v" O
the danger of overloading the A/D converter with short signal peaks (if! X' Y& M J" D" I1 D
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,; k6 c1 X9 E0 |
allowing for approx. 6 dB reserve before hard clipping occurs
6 c( _" S! M% V: ?( Y _/ t, g& w/ Q 7 z4 w& n; E& i k' ]6 U& G- ~; c
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