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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 6 U, |9 n2 v" i
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- D6 t* S9 r) S) ?" u/ S6 _英文电子说明书
! `5 @9 N2 g+ z5 w% B7 e[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
3 j0 X4 Z! G/ }5 x" M8 Q- B default settings. The subsequent settings remain stored in a Flash EPROM
" z% q0 C& M) p2 } after switching the unit off (unit contains no battery).
6 G2 b( ?8 _/ S- r3 C[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
6 e+ `# Y, k# | between microphone and line sensitivity setting ranges.
) y9 R+ @6 }6 T& ~ Mic: Range –40...+20 dBu3 e ?0 h- X! |$ c* k$ F
Line: Range +14 dBu, +24 dBu" V: ^6 C( Y, Q, ^$ ?, C
[3] Fine Gain Potentiometer for fine input sensitivity setting.
" y; b4 a3 E9 `0 g Range of additional gain: 0...+15 dB.
, \; c9 I1 b9 l* {8 P4 b. r Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents0 X0 S' r+ C8 ]4 b; T: N6 f
the dBu value of an analog input signal which causes a full-scale output of
# g6 [0 e, _6 i the A/D converter.
2 s; F8 c5 J8 L) b9 a Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
/ w& U# W* S& M! l the peak level is therefore +16 dBu. The “Input dBu FS” rotary
( ~% M3 J; j9 W" u switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine0 x# c% Y$ j1 t7 k
Gain” potentiometer [3] increases the gain by 8 dB.4 ~. V0 B8 X* k* _; g" {% y
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
0 b0 k: O2 i$ f% m$ f L$ t[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals) W6 O8 N, m7 d |( e
have more body; percussive instruments are less aggressive.& l/ J. E: _9 d# P' |2 v
The group delay behaviour due to AC coupling of the stages is different in/ e4 |. d* q0 K. t) w
tube amplifiers.
9 J" z: L; X8 r The “Bass Warmth” control allows to select the frequency range
j- ?: n+ F4 g3 U# o (10...200 Hz) within which the effect is active.0 H% B+ K4 d) C9 {
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.6 _0 y, n t0 _2 D1 q2 l. p" W
Valve amps have a characteristic response, mid-frequency harmonic content
: ]0 q7 T0 m/ m9 l# a4 N is emphasized.
" `8 g! i6 R! k" W7 U2 s( l[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.6 f- ~' n' V/ n
The harmonics spectrum of a delicately overloaded valve amplifier is completely
2 J" S4 d | _9 y, | T different from an overloaded transistor stage.! C+ m4 A2 p! ?
The “Gain” control adjusts a gentle overload while the odd-harmonics content
% E, b' ^9 X, ?" T6 } can be adjusted with the “Clip” control.
) _! l; x* I% X0 o[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
# N q8 a/ q, C3 A8 c1 C7 u1 C dBu FS.
7 E( ^5 v4 o; B; o5 o( Z[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the# V! \* n, e8 o
desired channel.& ^$ e% [1 Y- W v2 @) x O
The “VALVE” LED is on when the Valve Dignifier stage is active.2 c; Q' j3 U0 j6 W7 n1 I4 B ?
[9] INSERT INSERT function.
* \1 B- x% n- w Q# Z/ y First key pressure: INSERT POST VALVE, the Insert Send is tapped after; G( U; _* P5 E) i+ [
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
$ ?& K: N' Y$ p3 Q and AES/EBU outputs.+ E5 E( |6 ?- j
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
+ p. W& O( A# x7 x: f3 y the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
# ] |; x, G# A! F6 b/ p! G) m% i the valve dignifier stage to the Line and AES/EBU outputs.
, [4 i: r6 z' v t8 j& b0 d Third pressure: INSERT OFF, the input signal is fed via the valve dignifier4 I& e* x |" z9 f2 s9 Y
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
2 o! e/ y( N( Q8 z0 T; F receives this signal; display: none)./ _( I5 b# u$ G
Insert Send and Insert Return are electronically balanced and equipped with2 ~# G( h& X9 }4 q
XLR connectors.* [/ o- o* b: ?9 v+ l: T
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
; o0 X3 ~1 P7 n9 I ADAT digital interfaces. Each input channel can be switched to one of the
9 w0 m; S2 A3 W3 w( M0 J2 j# b channels 1...8 of the multichannel interface. If desired, also a mono mix is. i+ \- H5 b$ A2 ~
possible by selecting the same output channel for both input channels.
- Z! W7 L1 }" |: ?[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
, U" |* F4 @8 [) g# B1 I% E' l+ z( S channel.
# j4 O* B9 L* X9 @, k Can be operated only if the input gain selector is in Mic position. The
# {6 [5 Y, t8 E1 V. n1 C setting remains stored when switching over to a line gain setting.5 ^# u: T8 I& n9 ~
[12] Activates the high pass filter on the microphone inputs of the desired channel.* ^2 `, _; d O" z0 N9 \5 O
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.& c m* A6 X0 G; }7 h) X$ Y& r
Can be operated only if the input gain selector is in Mic position. The3 B8 w5 o0 e. x" I" ?' Y
setting remains stored when switching over to a line gain setting.
, L* q# ]7 ^6 h5 W[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
* B, a- g! p6 Q& ~[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
. `( B) u& z! J( ?8 R3 C- C “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with& k0 H1 x% J+ T" K: R2 c
Noise Shaping (display: “16NS”) can be selected.
: S% z7 v' J/ }6 |; C[15] SYNC Selects the synchronization source for the unit. Possible selections are:5 w( C0 d; y" E9 g( U# f
INT 48 Internal quartz reference, 48 kHz
+ G1 u6 [+ l$ }6 u; N. J INT 44 Internal quartz reference, 44.1 kHz
3 [* N" X5 N# a: U) J WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)' e) A' M7 n0 R
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)' A, p( k3 d' {' a% g ]; g7 W: H
AUTO Selects sources automatically in the sequence AES-WCLK-INT3 `3 W9 R' s2 x0 H% H
VAR Indication only, active if the external source frequency deviates from 48 or& c; e0 e* K c
44.1 kHz for more than approx. ±3 %.
5 o) c" A( I. R3 J3 ~[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
' s9 ^/ S4 {$ _1 n% ]3 c either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.. g7 u) W. J: G+ v* G$ P) B) M, e
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
( }7 }- M1 S) ~" x5 J the danger of overloading the A/D converter with short signal peaks (if9 `, E; |5 G, h! s/ P; ?% y
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,2 Y4 _& G3 x) H, Y5 W
allowing for approx. 6 dB reserve before hard clipping occurs
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