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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 % M& T) n# C9 \$ K* q
$ e- D4 g8 C4 D' H) d N英文电子说明书: N6 F2 D0 b4 L! e' ?, i3 m
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory( w* H# d* n2 n; j* m6 e. ?: ~
default settings. The subsequent settings remain stored in a Flash EPROM9 j0 u, P" j, l; X: k
after switching the unit off (unit contains no battery).# a: {0 T& S) h( Z' C( ?
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position2 G8 `/ n6 Q+ A* [
between microphone and line sensitivity setting ranges.$ x0 C' f. O3 W x1 s6 l
Mic: Range –40...+20 dBu
! H/ e; y1 L% v7 d: R Line: Range +14 dBu, +24 dBu
0 o, Q2 i! @; t2 H+ w* S[3] Fine Gain Potentiometer for fine input sensitivity setting.
! r6 h; V2 S3 z, T Range of additional gain: 0...+15 dB.
+ p1 T" N* B6 H' k% g5 o* L8 S. \ Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents# B5 H m; M' [5 y( q% h. e" Y$ _0 H& q
the dBu value of an analog input signal which causes a full-scale output of
1 v: f/ b) D1 m4 g3 I# D6 l the A/D converter.
/ \2 I5 } k6 l/ e/ E Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
1 z" j$ |- z' H6 t the peak level is therefore +16 dBu. The “Input dBu FS” rotary. N2 z. z+ r1 |
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine* ]( j5 c7 C9 F L* @% @4 p
Gain” potentiometer [3] increases the gain by 8 dB.$ e4 M4 Y# _, V
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
! N! m) ~$ d& ~[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals& d- B8 f q* C
have more body; percussive instruments are less aggressive.
1 `% q( f/ G' E$ @0 w3 F, x) F) Q The group delay behaviour due to AC coupling of the stages is different in8 G1 O V0 @) l, ^' R! c
tube amplifiers.2 M8 O7 I% t) a4 L/ [
The “Bass Warmth” control allows to select the frequency range$ T% r! m, d* M5 L' O0 L, g9 k
(10...200 Hz) within which the effect is active.
' w: B# |" g' z8 H2 V6 v- G& Z7 D[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
+ A$ s* _/ e% ^" w$ j: I$ N' x Valve amps have a characteristic response, mid-frequency harmonic content9 J2 `# j; V6 k" H4 ^3 J& e; _$ g
is emphasized.# F& W* B0 ~/ d( B. [; D7 R
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
' x1 X) |) U( U9 U, C9 Z The harmonics spectrum of a delicately overloaded valve amplifier is completely
( k" P8 c! ~6 L' q6 P different from an overloaded transistor stage.
/ X" w& R2 {* q7 Q The “Gain” control adjusts a gentle overload while the odd-harmonics content; r" u0 ~& r: O- ~3 B
can be adjusted with the “Clip” control.0 v( \/ F1 p/ K% b! e; M+ V. e
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
* x/ _% x" r- L4 r2 [5 F7 @' ^- i. e dBu FS.
+ Z# ]( i- g+ |. \5 k; {4 c8 W" ~[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the5 a0 P- `& u; \8 d( o' p
desired channel.
4 N) v% x2 P$ @! r3 ?" O3 O& x The “VALVE” LED is on when the Valve Dignifier stage is active.( F. ]$ J7 T5 x% `7 J1 D
[9] INSERT INSERT function.
7 ], q9 l( x( ?$ L% z& i First key pressure: INSERT POST VALVE, the Insert Send is tapped after
" t/ V2 l* f) j& A+ Q the valve stage (display: “INS”); the Insert Return is directly fed to the Line
/ y$ Y ?' G* a and AES/EBU outputs.* ?% P) Y6 l. B3 S4 C* M5 O& b
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
7 J3 ^ w; e# s* J+ Z the valve stage (display: “INS” and “PRE”); the Insert Return is fed via" u5 c5 P* N! k- d
the valve dignifier stage to the Line and AES/EBU outputs.
# W- I# D% x( s& Q) q0 G; H' ?& B Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
& B; `% K' l% I/ { stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
( S' H: J( g4 B! x8 U receives this signal; display: none).
2 D& B. h0 ~5 A Insert Send and Insert Return are electronically balanced and equipped with T9 i) E, R9 Q0 u( G# l `- I
XLR connectors.
6 I, D0 M7 O( i8 G. f; B$ n& n[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
; k* U* P r r n9 u$ e ADAT digital interfaces. Each input channel can be switched to one of the
7 |% n$ @, `3 t: F8 E+ v channels 1...8 of the multichannel interface. If desired, also a mono mix is- ?( b. d/ [4 x! @0 `& J
possible by selecting the same output channel for both input channels.
* r8 J0 ]. a: D1 P[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone4 D+ A7 x7 k6 s: e0 d
channel.6 |4 O9 g$ h# M1 d
Can be operated only if the input gain selector is in Mic position. The$ P4 U' x; K/ v# t& W3 k2 }0 t- W
setting remains stored when switching over to a line gain setting.
2 T. Y# X$ w* ^; J" N; I[12] Activates the high pass filter on the microphone inputs of the desired channel., c& g4 ]/ `. X
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave., k! L" W; n0 _1 d8 I# P# w
Can be operated only if the input gain selector is in Mic position. The4 ~# g* `: O A1 r) o
setting remains stored when switching over to a line gain setting. D( ` H" J/ s) f' C8 b% W2 M
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
4 T, J, T+ Y4 U, Z9 d$ Y& }7 a[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:: \8 J" G- g$ E' R2 T
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
, e: o" g4 G5 [: V& d% p Noise Shaping (display: “16NS”) can be selected.8 X# ]) t# p8 l1 | e, G. o8 d
[15] SYNC Selects the synchronization source for the unit. Possible selections are:+ k2 k9 i5 h3 X! l ]) W8 T
INT 48 Internal quartz reference, 48 kHz
O4 O0 D0 D; g- _. @# {5 }- F" w INT 44 Internal quartz reference, 44.1 kHz; b9 N" y8 @3 B Q+ X% p
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)2 Y$ z9 M v: h
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)6 @+ d# w! d# v( i
AUTO Selects sources automatically in the sequence AES-WCLK-INT
' Z" r; r7 \6 V5 [& G# j VAR Indication only, active if the external source frequency deviates from 48 or
3 |7 C$ D. A1 k" w! O 44.1 kHz for more than approx. ±3 %.% ^ D" D0 R/ J4 P0 |4 O& s
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
" c9 z$ H& J; |+ u! {8 n either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
7 f- s- O0 g% V! M- F; D[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce+ O6 A- o, F8 z* i! Q+ `
the danger of overloading the A/D converter with short signal peaks (if* G) H: _4 ]0 b3 i( u
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,( ?: t7 c- O- N; Z* i3 e: r% U W5 O
allowing for approx. 6 dB reserve before hard clipping occurs
2 X; p/ g) m- p _5 F4 d: D " B) u! U, F0 F/ [, a: D* f
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