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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 9 g5 G' p1 O8 Q3 v5 \5 n2 H. ]
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英文电子说明书: ? E" S) n5 h, _1 s" A( Z3 e$ j4 k
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
; O, A" M" \0 j Z/ M3 H: k( S! S default settings. The subsequent settings remain stored in a Flash EPROM; k! y# n6 J8 q- q' K
after switching the unit off (unit contains no battery).; w5 ` U4 c* V! B7 [; w8 V- y) D
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
' v. z5 r& b ]$ ^. l6 ^) ]8 z# g between microphone and line sensitivity setting ranges.
1 U; ]4 B) ]6 n5 s; |2 Z( h Mic: Range –40...+20 dBu; f6 [- u: K: s8 [8 M
Line: Range +14 dBu, +24 dBu
$ s. m, M0 m: E* w! A, H! I[3] Fine Gain Potentiometer for fine input sensitivity setting.
. h1 ~( C; Y* T Range of additional gain: 0...+15 dB.
6 F; T3 y; e6 j Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
4 _& q( j8 Z. }8 p! x, q# n+ Z2 E the dBu value of an analog input signal which causes a full-scale output of
4 y4 ]% u! c N9 P# S the A/D converter.- i: D- H; e8 A( H' e
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
& U8 x/ N; d% q: }# G" E7 q% l: s$ t7 g the peak level is therefore +16 dBu. The “Input dBu FS” rotary4 G; |/ r+ A+ F3 i6 o
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
: k+ p; {* W. ]/ C Gain” potentiometer [3] increases the gain by 8 dB.
, v3 q5 C5 J- J$ [- T[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.( {; g6 k3 |3 G# K, ~+ `1 ]: X: b
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
% N' E$ O* S, H have more body; percussive instruments are less aggressive.
5 _2 z& A& u# F0 K: T2 X The group delay behaviour due to AC coupling of the stages is different in" u/ l" D) m! B Y$ k
tube amplifiers.* e3 m: o: f5 X R8 b E |2 x
The “Bass Warmth” control allows to select the frequency range2 B- g" A/ p( W# a4 f* ~. r
(10...200 Hz) within which the effect is active.5 Y! H: ^ B$ `& s7 O, a
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.+ o# o* y' B( f5 C# D" y% V
Valve amps have a characteristic response, mid-frequency harmonic content
' ?+ g4 m/ S/ o7 e$ t& G; O is emphasized.. }" ?$ h) {% J; j* ?+ c
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
4 a0 i+ W0 H0 y8 o+ F- \ The harmonics spectrum of a delicately overloaded valve amplifier is completely
' d3 Y# o$ v1 \- I different from an overloaded transistor stage. i+ B. E& \# ^/ u0 R" G4 b, I( e
The “Gain” control adjusts a gentle overload while the odd-harmonics content
: }+ M# a% v! @" u G# X can be adjusted with the “Clip” control.' }1 ^! ~5 N- I, P
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24% E: ]( G- j& y: \3 e
dBu FS.( V! z! P5 m# N; h* x6 I! C, J
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the+ c, U# H6 p7 I# r+ N f1 d
desired channel.9 @- j$ Q5 _1 X8 F1 F6 J
The “VALVE” LED is on when the Valve Dignifier stage is active.' p! C& \3 z! Y7 }3 Y' u! R5 ^
[9] INSERT INSERT function.
, V* t5 a6 M! B7 H First key pressure: INSERT POST VALVE, the Insert Send is tapped after( n4 Q& y$ W) {, s
the valve stage (display: “INS”); the Insert Return is directly fed to the Line1 \# S0 Z6 K' L3 w. X
and AES/EBU outputs.3 x4 d9 g4 T, S5 r2 y1 f3 ~: Z4 ]$ t6 @
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
7 [: m" Z7 p+ r1 h9 e( h; z3 q% b the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
0 a( z9 g/ W( j4 d the valve dignifier stage to the Line and AES/EBU outputs.* L$ f# Q. G5 X1 K8 ?
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier! D: i; b! ~9 p
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output" L) m" A/ R& O
receives this signal; display: none).
" c0 R. e5 F& m. {3 q4 _7 B Insert Send and Insert Return are electronically balanced and equipped with
4 J4 }2 O2 V; j# B- F! J# v7 R XLR connectors.+ y# s N9 Q1 l8 G( }1 W' I
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
9 g( h# d) T- s8 S( U% Q ADAT digital interfaces. Each input channel can be switched to one of the
2 @" M/ w) u2 K5 b channels 1...8 of the multichannel interface. If desired, also a mono mix is
0 g6 n( h: F2 r" o9 t9 Y possible by selecting the same output channel for both input channels.5 Y2 Z' J z, [9 c4 r
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone) V/ W. J" W+ q* ~1 |" Y
channel., r0 K4 h L( r: n/ w. @$ f
Can be operated only if the input gain selector is in Mic position. The$ E0 a7 S7 V- g: x; X
setting remains stored when switching over to a line gain setting.3 n: u+ H& {$ u5 U# y1 c6 \2 Q
[12] Activates the high pass filter on the microphone inputs of the desired channel.
3 \1 g4 O/ F" o1 a( \9 s Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.3 J% u( _0 g6 `) u) L0 N) ]- b
Can be operated only if the input gain selector is in Mic position. The" M& @% u3 R0 A3 B7 ?$ \
setting remains stored when switching over to a line gain setting.* P2 w1 V; y% t" I
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
* N" a- J# J$ ~2 Q5 Z, j" z+ ~. \[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:. s1 `4 T4 S5 l% I- Y
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with' z$ F) e4 t3 @. P# k
Noise Shaping (display: “16NS”) can be selected.
/ b1 t* F. `* O/ Z# B[15] SYNC Selects the synchronization source for the unit. Possible selections are:
. a7 y4 \) J5 c/ y$ j INT 48 Internal quartz reference, 48 kHz
, Y* A' D; j! Q+ Z* a& \ INT 44 Internal quartz reference, 44.1 kHz
6 X( J! R: N% T& | WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)' }; g1 t5 L# ~% G5 D& N, y# \- K" g
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
9 N4 I" `0 G6 m+ h AUTO Selects sources automatically in the sequence AES-WCLK-INT
! p& b( b$ L' W! T; f0 a: d U VAR Indication only, active if the external source frequency deviates from 48 or
4 a* D+ }) p9 z% j+ P+ t 44.1 kHz for more than approx. ±3 %.
1 C+ x" k- q! y9 s( K2 @: x[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –4 V. ^5 A/ Y4 {% R; s7 ~
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.* ~4 _5 {* a0 L2 g
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce. z1 z' \$ Y$ [( e5 t& w- N
the danger of overloading the A/D converter with short signal peaks (if
: o3 ^. i7 B' E! a active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,) x5 G( H' y' B9 s
allowing for approx. 6 dB reserve before hard clipping occurs5 u( F# e" S* j- k' p3 I: T9 o
& i! ^6 O2 b6 c+ [ . X) A7 e D6 L/ @
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