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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
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- e9 R# c3 W( ]英文电子说明书- _) Y, k6 ?; [& b* Y4 _1 V! }( c
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory4 t* r5 d' y+ _. p
default settings. The subsequent settings remain stored in a Flash EPROM
: W1 x6 t7 N" S' ?8 k6 _2 ]/ { after switching the unit off (unit contains no battery).3 x6 P& `; `2 N( S. n' \3 n
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
* }2 ?/ d" V5 h7 \ between microphone and line sensitivity setting ranges.- `. j# y# x) [# _1 U& d5 r! P! l
Mic: Range –40...+20 dBu3 V( v# W7 ], I1 c8 E; W
Line: Range +14 dBu, +24 dBu
3 |0 s* e0 f: K1 B2 g8 T[3] Fine Gain Potentiometer for fine input sensitivity setting.
4 C0 S- H$ ?7 |8 x# L: W* M7 V Range of additional gain: 0...+15 dB.
; v. K- ]( p4 Y2 W( I Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents6 X2 e" R0 L' J( l
the dBu value of an analog input signal which causes a full-scale output of: W* _2 ]2 I; q6 ]' Y2 G+ x
the A/D converter.2 t( f: o& }% ]9 s
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
' h- r5 K* L- M& q7 j the peak level is therefore +16 dBu. The “Input dBu FS” rotary
- W4 b; j& j/ t6 ` switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine6 X% r" O( ~, m' [; B
Gain” potentiometer [3] increases the gain by 8 dB.
) L5 Y. O, R, K2 n[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
: U8 d, Y5 ^! Y' y; J- c! Z3 V[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
* ^0 ^4 }# { M" I" I have more body; percussive instruments are less aggressive.
3 L C4 s5 r1 P# G% x The group delay behaviour due to AC coupling of the stages is different in! N; \( O$ q( |* o2 B) a
tube amplifiers.
Y |9 b; Z# h& N The “Bass Warmth” control allows to select the frequency range
* S1 b/ p, `! a1 D, X$ y) b (10...200 Hz) within which the effect is active.
6 E/ T& C/ M/ o3 L( ^[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
/ l e! a& j' K6 n Valve amps have a characteristic response, mid-frequency harmonic content4 |1 b5 A% p2 k0 H
is emphasized.' W% A6 C! X. |' o2 {
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
" s0 ]( R k R$ t$ A q; e The harmonics spectrum of a delicately overloaded valve amplifier is completely
+ ^& |$ R* S+ f% S& ^' y0 r different from an overloaded transistor stage.' Z* q# q4 i: d
The “Gain” control adjusts a gentle overload while the odd-harmonics content
1 |9 z2 y+ z, D4 X1 X; A can be adjusted with the “Clip” control.
* g. w' M+ w3 k2 n) l4 ~[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
7 H' M0 m' K- |8 H6 ?. w& G4 U) \) j# p dBu FS.
+ G) z; W7 h4 x ~, P[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the5 A$ r5 w. U9 H4 U9 }: o& K- h
desired channel.# E# N6 [' G% I+ V5 x0 v
The “VALVE” LED is on when the Valve Dignifier stage is active.* d! W8 e, q; L' ~& @
[9] INSERT INSERT function.
/ c2 r+ X; a( T! q First key pressure: INSERT POST VALVE, the Insert Send is tapped after
( O0 r$ c" ]) b/ w the valve stage (display: “INS”); the Insert Return is directly fed to the Line% W" R' t) o r2 ?/ u e
and AES/EBU outputs.5 u6 J8 C' ]$ P; I* W0 ~
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
, m& o3 r. t; k/ \7 | the valve stage (display: “INS” and “PRE”); the Insert Return is fed via) Z; l9 v2 W7 f" k
the valve dignifier stage to the Line and AES/EBU outputs.
- \0 z! M) n; N% A7 J8 s8 r; P Third pressure: INSERT OFF, the input signal is fed via the valve dignifier( Y7 _ i# w- U& `# [
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
! y% R% g) f( o) [6 Z! w receives this signal; display: none).0 N) P) U% x" n( F
Insert Send and Insert Return are electronically balanced and equipped with
% ?" s& m. e% Q/ n2 {( x XLR connectors.
$ E) N z) Y) D$ T[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or# g1 `+ ~- C: N: F3 Z( y1 I' _
ADAT digital interfaces. Each input channel can be switched to one of the
1 D5 B. x5 {. q* @0 o2 I+ c% l channels 1...8 of the multichannel interface. If desired, also a mono mix is
S( j# A1 b6 P. f/ u; K" A5 _0 I possible by selecting the same output channel for both input channels.6 r0 N6 _+ _7 M; I
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone9 m1 @" C+ u/ _0 e/ ?. j, ~1 n
channel.
; o# u7 H0 M( Q Can be operated only if the input gain selector is in Mic position. The
4 U: ?- C# y5 D/ ~( d; [ Q5 J setting remains stored when switching over to a line gain setting.
- C& k ?' x9 C0 C6 d" z[12] Activates the high pass filter on the microphone inputs of the desired channel.
9 ~( U8 ?. L4 i8 D, A Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
; h. e( L7 a, t0 ] Can be operated only if the input gain selector is in Mic position. The% o7 J1 C, y* q) c: p2 K
setting remains stored when switching over to a line gain setting.
" ?, V. @$ [! B[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
) k+ H: J0 s) v" i" `, I[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
, H2 P1 w! P4 {/ _0 s# E “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
& V$ H' l- M6 L7 ?; H Noise Shaping (display: “16NS”) can be selected.3 i. Y& C% I/ t- q- A* f1 d
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
R0 R2 g* b" c+ f9 P' U I+ r; G INT 48 Internal quartz reference, 48 kHz
# _3 r: J1 x3 d* C0 C. y6 S INT 44 Internal quartz reference, 44.1 kHz0 p$ T! N% n- @' H; @
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
6 P% h1 n5 x- ]* ^& ?, D AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)1 |' D! |) b' @2 w
AUTO Selects sources automatically in the sequence AES-WCLK-INT
0 Y# P5 v `9 i8 b VAR Indication only, active if the external source frequency deviates from 48 or5 ? [! X; s' C( W0 O
44.1 kHz for more than approx. ±3 %.# Y) y4 j- s$ g1 j- p
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
6 f, H/ A4 M8 Y" a& W either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.2 L# ~ ?* i6 P3 ]5 N/ q
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
$ C8 a) G& |+ M. F# o5 t5 U6 O7 ?: H the danger of overloading the A/D converter with short signal peaks (if
& G* h4 C% Q7 F8 p# J- r active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,1 o, L4 w3 t5 a3 M, F# Y
allowing for approx. 6 dB reserve before hard clipping occurs
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