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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 ! X( V. g6 N- }$ o7 R/ U
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英文电子说明书( e' K) L: Y I; D+ t) X
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory( X* s. h, p. X8 q/ w% Z8 j% K2 c
default settings. The subsequent settings remain stored in a Flash EPROM, ^2 A) `( r5 M7 w# b8 O4 Y
after switching the unit off (unit contains no battery).0 c" r8 o5 U3 j
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position# D2 e) T: p# @; U
between microphone and line sensitivity setting ranges.
/ r! d# P" o. X3 e Mic: Range –40...+20 dBu- t" F4 [- r2 i( c+ |# h
Line: Range +14 dBu, +24 dBu
* M/ M- R5 i3 F! B& I! Q- u6 n[3] Fine Gain Potentiometer for fine input sensitivity setting.
2 t! Y" L& t6 i5 ~6 f Range of additional gain: 0...+15 dB.
2 |7 n- h; f4 E Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
6 a$ F4 o+ O7 c5 G7 ^6 M! |1 } the dBu value of an analog input signal which causes a full-scale output of
! P0 L3 U, o4 f: C; j1 i* Q the A/D converter.
; |6 B2 [+ `! q1 v Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
2 F7 {4 e% S; ]! R the peak level is therefore +16 dBu. The “Input dBu FS” rotary
5 F# ~$ q% ^7 x+ |- r7 Q switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
6 B! v: V# R6 }/ N* a6 ^4 g: H Gain” potentiometer [3] increases the gain by 8 dB.9 ?2 V' {" z0 C, f9 p. E
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
. v2 \- ^, y' b* ^& c[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals* w z1 A9 p# H2 p& p
have more body; percussive instruments are less aggressive.
% F8 @" I/ U/ c, F4 f3 S The group delay behaviour due to AC coupling of the stages is different in
4 s! W) l! O4 F7 s! N tube amplifiers.
- c- p9 e& O' L" y$ h/ F The “Bass Warmth” control allows to select the frequency range
% l7 S. K) l4 w (10...200 Hz) within which the effect is active.0 B! \- _% f5 j! Y- S1 ~6 `8 q
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.8 Z2 v4 U# M |5 c/ c. P
Valve amps have a characteristic response, mid-frequency harmonic content8 k+ C) T& P1 Y2 C! o" |0 p
is emphasized.
* i% J7 Z; i. }1 g y' ?$ }$ t[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer./ O! y9 N8 ^5 g: _! B( h
The harmonics spectrum of a delicately overloaded valve amplifier is completely
W0 @. ?' }( {8 ] different from an overloaded transistor stage.
* x! z* E9 H o5 J ?- C9 K. | The “Gain” control adjusts a gentle overload while the odd-harmonics content
3 A2 N' z) u7 f1 e) C can be adjusted with the “Clip” control.) Z# _5 [( b( X( U; W3 |# Z
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24! t. q- w a# E$ B2 m2 o/ @
dBu FS.
; x. H1 E4 i6 L: @. m[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
4 H* g7 k6 l& k7 V7 ? desired channel.( h% R3 X7 }5 [0 @! m
The “VALVE” LED is on when the Valve Dignifier stage is active.# x, f4 y9 [+ z! C- d7 Z5 O
[9] INSERT INSERT function.! ]2 O0 z1 v$ J9 X- X
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
6 N# s( S9 l8 R0 A' I- r4 w+ Q the valve stage (display: “INS”); the Insert Return is directly fed to the Line4 o: e6 I8 L+ A- j7 \, F
and AES/EBU outputs.
( l* h9 C+ f; o3 `( m Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
: V- I& s5 C9 v. Y- I the valve stage (display: “INS” and “PRE”); the Insert Return is fed via2 `& p" s' O+ t- p& y
the valve dignifier stage to the Line and AES/EBU outputs.1 l0 p- z' z1 ?! I' \
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier( b/ k1 G8 s7 D8 L9 L8 F
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
4 u& {; ~* l, S- f7 F7 i receives this signal; display: none).
& R! [" D% t1 e( [: O Insert Send and Insert Return are electronically balanced and equipped with3 ^( e# z! n+ e, {1 p! k
XLR connectors.- N, q' x1 M' w5 C. b: |. b% W
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or- Z- H$ ^1 C' E3 L" L. x
ADAT digital interfaces. Each input channel can be switched to one of the/ ~- y9 I ?: V1 E) W0 q/ c! G) j
channels 1...8 of the multichannel interface. If desired, also a mono mix is/ \* t6 t4 N/ M
possible by selecting the same output channel for both input channels.
# L2 |* Y+ X/ I4 B[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone6 t8 o, `) J( l) [9 G
channel.8 {& C/ T. M8 T4 l, G9 O1 c
Can be operated only if the input gain selector is in Mic position. The, ^- O$ L$ C B! O. w* K7 c
setting remains stored when switching over to a line gain setting.
( R9 A$ U# t* j" R/ v& i/ O[12] Activates the high pass filter on the microphone inputs of the desired channel.
8 U1 X; ^; `5 V4 B7 c& Q+ A Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.* K) y0 d: |% {8 x, I
Can be operated only if the input gain selector is in Mic position. The6 p$ m9 }& j& {1 k
setting remains stored when switching over to a line gain setting.! c4 _% b: s: |" U3 p& J
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
6 N) T, X( R# C8 v t[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
1 z7 I* ~6 R* t; X2 F3 H “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
( f4 T4 C4 v+ b+ c) r& v Noise Shaping (display: “16NS”) can be selected.6 D0 j" f4 L E
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
, B. N% s# P6 q INT 48 Internal quartz reference, 48 kHz
1 {1 K% C7 }* a: [0 N, d: P, M INT 44 Internal quartz reference, 44.1 kHz
1 H" g! M/ _3 w0 H: i# K WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)/ y- T9 \; v3 T) T
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
- u" ?! {% z5 n: f; t2 b+ t: _ AUTO Selects sources automatically in the sequence AES-WCLK-INT
& _1 t9 Z% A- x7 ^ VAR Indication only, active if the external source frequency deviates from 48 or6 G1 T& B# A/ `! s
44.1 kHz for more than approx. ±3 %.7 ~3 }" W X* V- H
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
4 h+ _6 B9 ] s either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
* q+ U u; f# u% e* F$ j[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
1 M3 a: [7 E2 \$ [2 Z' I! W the danger of overloading the A/D converter with short signal peaks (if F2 y& V' J" Z, S9 z1 v5 C( S" p" N
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
) E9 G6 b* P G# D2 J allowing for approx. 6 dB reserve before hard clipping occurs7 s0 b% K' w: @! K O6 J1 K
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