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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 $ R$ n0 Z- z6 a
1 E5 `/ p6 W8 e' ?, C英文电子说明书* }% E: l# C: | D' M) ?( S5 V
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
5 J! H3 C9 ^* e# y" G+ | default settings. The subsequent settings remain stored in a Flash EPROM
- I, m" y! \7 p! S" Z E after switching the unit off (unit contains no battery).
: O/ P0 q% e3 X7 h& m+ G: N[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
! b7 @0 q7 t( ^ between microphone and line sensitivity setting ranges.
. T/ F1 p+ t8 i. q3 E0 S; ]0 b Mic: Range –40...+20 dBu
# U5 C* f+ ~: }- B- j' E Line: Range +14 dBu, +24 dBu
$ T4 y3 q* |4 C8 U6 N: v4 t w[3] Fine Gain Potentiometer for fine input sensitivity setting.
, q) C) K% ^( o( W# S" @3 R Range of additional gain: 0...+15 dB.
$ B! e6 B- ~% M0 n& g) `, ? Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
' W2 [8 }6 R- M9 m% }1 F5 v the dBu value of an analog input signal which causes a full-scale output of
/ e! I! w- `7 S, d6 R% z% ^ the A/D converter.
! h6 D3 L; z* K( {8 W p Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;, _. W) X+ E7 d, T! P
the peak level is therefore +16 dBu. The “Input dBu FS” rotary. Z6 P& h4 z4 t% `1 Y2 ]
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
7 x K# c ?4 a6 w9 a! | Gain” potentiometer [3] increases the gain by 8 dB.
6 c T# a/ M9 |/ ^- T[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active." Y3 z9 V3 U/ J; b- |
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals# O1 m) D) s, T7 s
have more body; percussive instruments are less aggressive.8 }9 n' b6 o5 _5 A" K# \ @" @
The group delay behaviour due to AC coupling of the stages is different in, t5 J) e/ s. o: Q" F, T4 s
tube amplifiers.
8 t3 K N5 s" U The “Bass Warmth” control allows to select the frequency range! H! T+ Y$ q9 m2 S1 t$ z H6 S4 S
(10...200 Hz) within which the effect is active.9 W0 b- G6 v0 L! {
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
2 Q0 F: I; o4 ^6 M Valve amps have a characteristic response, mid-frequency harmonic content
, S9 \& u5 L+ \6 J% J1 ]& e, u" Q T is emphasized.3 E/ @# O* V7 Z# v# U/ L" n
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer., ~+ E% n6 |" }) |
The harmonics spectrum of a delicately overloaded valve amplifier is completely- ?. X6 {' F; F& F5 o* [( }# {
different from an overloaded transistor stage.
, F P/ |$ c& e2 Y The “Gain” control adjusts a gentle overload while the odd-harmonics content/ O* L9 z2 B4 W
can be adjusted with the “Clip” control.1 \- a# \9 s: e. m/ r6 z7 K' q
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24! _( U# S8 g) y0 S1 \
dBu FS.
8 T( l8 y4 L, {1 h[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
8 _" V q! _' j desired channel.
) a; v1 }3 H; ?" ` The “VALVE” LED is on when the Valve Dignifier stage is active.5 I! v; p* D1 o; B
[9] INSERT INSERT function.
/ I; v# L m' L+ r3 [ First key pressure: INSERT POST VALVE, the Insert Send is tapped after
3 b/ r) D5 N7 O- C/ }- L the valve stage (display: “INS”); the Insert Return is directly fed to the Line
$ Z8 k% D& i# ~ ?/ Z7 K2 i& x and AES/EBU outputs.1 \% q( b* j- D4 v
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before X. V- T2 F% c+ B/ t- _" z
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
9 k/ B6 _! h- S. O. h the valve dignifier stage to the Line and AES/EBU outputs.
2 k. Q, u7 q: f6 ] Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
4 u2 P$ L" w2 U+ q# z stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
% s& M, q ^: P1 R- k2 P receives this signal; display: none).1 q! {% ~: C# z/ M0 ~$ ^& @
Insert Send and Insert Return are electronically balanced and equipped with2 h3 H( M2 O5 r; z" d: B
XLR connectors.
$ h( Q1 Z% F" J" `" x, f[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
* V7 k# {9 A" K" F. ~) E) z ADAT digital interfaces. Each input channel can be switched to one of the7 Z: r% ?3 p: ?- @/ @/ W3 m! j* M
channels 1...8 of the multichannel interface. If desired, also a mono mix is
/ M H; V" h% X# F+ L* f9 K possible by selecting the same output channel for both input channels.0 p8 |& N5 ]# Y( B/ s) Z. ~6 v
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
6 G' u: K, f% W S channel.0 a/ `. K# o9 m, F/ e
Can be operated only if the input gain selector is in Mic position. The. y; E" y$ r% `* f, G
setting remains stored when switching over to a line gain setting.8 E" N, {* j( i$ N2 C5 Y/ H. W: k
[12] Activates the high pass filter on the microphone inputs of the desired channel.; h6 v! Y! g, ~ U2 ~( i
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave./ @. l1 ?2 v6 X
Can be operated only if the input gain selector is in Mic position. The
5 @: L2 `* U3 y/ P# Z. m5 Z setting remains stored when switching over to a line gain setting.
8 M1 Q. b: d# i5 s1 x& ?8 N[13] Ø Toggle key to activate the phase reverse switch of the desired channel." h, Q {$ Z0 a& h& c
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
( W: n; c. ?0 z “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with" x1 d+ e; V( k7 G0 J: j+ X0 d3 v
Noise Shaping (display: “16NS”) can be selected.) B7 ^7 V" d3 s' }/ D% f
[15] SYNC Selects the synchronization source for the unit. Possible selections are:4 M3 g; `- b6 ^# `, w
INT 48 Internal quartz reference, 48 kHz
0 H# f% _9 w+ G- }+ [; q" u7 y3 @ INT 44 Internal quartz reference, 44.1 kHz' }3 a: B* m5 R5 a6 }0 N1 k4 y
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)/ v6 k2 d7 Y7 ]/ |5 t# I% s% p
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)- B' M& N# a" @. E, l6 h; }/ L
AUTO Selects sources automatically in the sequence AES-WCLK-INT
& _: G; g1 U3 Q! O2 B VAR Indication only, active if the external source frequency deviates from 48 or' w2 c6 B; w7 X& v4 `* u! u
44.1 kHz for more than approx. ±3 %.; V( Q1 f: W+ D" w# o$ _3 ]" l9 B0 j
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –1 D# R1 A1 ?% P9 W* ?
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.3 V' o/ _- k0 [, [- v
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
, Z, O: x F: Q# e the danger of overloading the A/D converter with short signal peaks (if- Q: G" J, H$ b
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
' }4 a0 a1 _0 E t. h: G allowing for approx. 6 dB reserve before hard clipping occurs- ~2 i9 o% [, v. p7 I( b% j; J
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