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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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英文电子说明书
4 M0 s. }5 u! v[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
% Y" u6 ?' H8 m1 d4 b& L) ^ default settings. The subsequent settings remain stored in a Flash EPROM( G0 C2 d' O/ q- I( w
after switching the unit off (unit contains no battery).
0 g D& [" D% S[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position d7 m) h1 Z. t
between microphone and line sensitivity setting ranges.
6 }- o) w8 n9 i% D- M Mic: Range –40...+20 dBu$ @- q2 a: k5 [- }/ a8 o* V
Line: Range +14 dBu, +24 dBu' A+ s0 O% U% u3 B' N
[3] Fine Gain Potentiometer for fine input sensitivity setting., w2 \; [8 C6 k7 D# b& l0 Q6 S
Range of additional gain: 0...+15 dB.
- V* j& A8 w0 T" P% P" l" B Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
8 k' L$ Y, A* d1 t3 p/ f" r the dBu value of an analog input signal which causes a full-scale output of
+ ]/ Y+ `; l3 m, N% L8 { the A/D converter.
$ z7 X# `+ A( J Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
# R; o; n4 l" s+ u7 J# P* _; ] the peak level is therefore +16 dBu. The “Input dBu FS” rotary
, w- f8 l' C- [4 Z, g switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
( l9 M8 _7 B) B Gain” potentiometer [3] increases the gain by 8 dB.
3 u+ h2 w2 @2 |4 v Q5 u[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active. j) m) l; D) ?
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals! Q/ M: } _( a E. Z3 c- b
have more body; percussive instruments are less aggressive.
' z7 x* a" g" y9 \ The group delay behaviour due to AC coupling of the stages is different in$ l r, E I7 n+ O4 g' S
tube amplifiers.
# d8 W- N2 F% I: k) G The “Bass Warmth” control allows to select the frequency range
& ^1 |; U# X. x0 D( a8 k' y7 W (10...200 Hz) within which the effect is active.) c$ o# d3 m1 ~, d/ L' Z8 p
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
0 N) l0 v# i3 \& C. j' U Valve amps have a characteristic response, mid-frequency harmonic content
, Z8 X- G% p' `5 |( j0 J9 i is emphasized.
) a- a7 j9 p6 M+ ][6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.' F4 V- ` w& p1 w
The harmonics spectrum of a delicately overloaded valve amplifier is completely
3 @7 y5 @% M8 q. e! _9 r- L different from an overloaded transistor stage.
: M N5 Z! w8 i: d/ h The “Gain” control adjusts a gentle overload while the odd-harmonics content
, W x. ?6 x1 i+ U, F6 b3 |/ w can be adjusted with the “Clip” control.
4 h" E9 u& |: _ u3 [3 s[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24# N8 A. ]5 N, H. w" ~
dBu FS.
4 Y% D8 x- x# M1 P7 V9 W[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
% H6 I1 F, \7 F9 {/ F3 X desired channel., R. ?; r" r7 N. m. N
The “VALVE” LED is on when the Valve Dignifier stage is active.
7 n% k! Q x! B- b, H% a( h) s) T[9] INSERT INSERT function.
, I/ b* G0 d* V First key pressure: INSERT POST VALVE, the Insert Send is tapped after
9 x. u$ X" }" `4 }8 x the valve stage (display: “INS”); the Insert Return is directly fed to the Line( {% X9 R0 Q9 |3 T( Y4 c+ `1 z
and AES/EBU outputs.. R* u# Q- X9 }
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
! [1 f* |1 C7 J# X% m4 I, `/ { the valve stage (display: “INS” and “PRE”); the Insert Return is fed via& q2 C" O+ M( g1 l, c2 _5 a
the valve dignifier stage to the Line and AES/EBU outputs.) M3 b5 \6 y+ F
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier( D9 b6 t/ p1 ]
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output& M9 V# ~6 O9 ]: t" ]- J2 ?
receives this signal; display: none).- j& L' z9 S. L4 w8 P! L# {
Insert Send and Insert Return are electronically balanced and equipped with
I T+ g& n& T9 A, O0 T XLR connectors.
5 r! W* H T# C% o) q[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or% K6 j6 ~: ^) w; c
ADAT digital interfaces. Each input channel can be switched to one of the, l, c/ r K0 h% ]6 _8 a4 p- L0 `
channels 1...8 of the multichannel interface. If desired, also a mono mix is
- m, k+ d8 r7 z2 J" l1 | possible by selecting the same output channel for both input channels.
7 S7 C5 O B4 z[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone- t( ~/ G( h$ u8 F( e- g
channel.$ i" v0 V- @6 {5 M
Can be operated only if the input gain selector is in Mic position. The
% W8 U- M' T! e6 p, i1 l9 L setting remains stored when switching over to a line gain setting.
& A8 @: H# @, F[12] Activates the high pass filter on the microphone inputs of the desired channel.
# _$ n# B# K' A" J0 L7 }$ O Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.* c8 d" `8 n5 j) T. B3 x
Can be operated only if the input gain selector is in Mic position. The8 x$ `) x& [) k6 |/ h+ M
setting remains stored when switching over to a line gain setting.
- z. e1 M" _# T& J. z4 H[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
, u5 d) X+ w$ N: O6 m) U[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:9 [/ C: b+ S9 O9 z
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
# W. G9 ~0 Q. h/ m* r4 _4 }7 F0 s" { Noise Shaping (display: “16NS”) can be selected.9 Q, A* m* S( Z' @( @0 c" [" b
[15] SYNC Selects the synchronization source for the unit. Possible selections are:6 z3 a0 o4 H" f( C5 n9 D' N
INT 48 Internal quartz reference, 48 kHz
w, ^! O$ N, P3 y; k& r; e INT 44 Internal quartz reference, 44.1 kHz+ S" r8 ~7 o) i
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)' w4 w5 M! M2 C9 E0 ^ N
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
4 v1 m' d. ~8 v- @( |; W AUTO Selects sources automatically in the sequence AES-WCLK-INT
. R$ v4 c# N% s& z m* b4 s VAR Indication only, active if the external source frequency deviates from 48 or. m- a" G0 g# P& B
44.1 kHz for more than approx. ±3 %.
+ B6 I& n' G5 i, X9 O[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
- G# V7 B: x9 ~1 n either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
, m c6 n* m; u+ F `: N[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce8 C& T0 @4 O2 f1 J! a
the danger of overloading the A/D converter with short signal peaks (if
+ p3 b6 U9 m$ w$ f active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,6 \/ s6 l$ K5 r$ D: q3 o7 w
allowing for approx. 6 dB reserve before hard clipping occurs5 E: `* o( a9 B5 K7 |7 ?5 y
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