|

楼主 |
发表于 2012-5-21 23:23:18
|
显示全部楼层
本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 / p7 _1 u: E! k; d
7 w, F( Q. G! ?# F7 |1 g
; N# m# V1 V( A1 A+ ]
英文电子说明书
7 Y& N4 e/ R6 \" x[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
+ }$ o, W5 \9 N9 A- r default settings. The subsequent settings remain stored in a Flash EPROM
' O- O! W/ d; p4 z4 H6 E4 ?1 |9 o, g after switching the unit off (unit contains no battery).
6 Y; p( H% d2 p[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position$ ~9 O: S9 F0 m
between microphone and line sensitivity setting ranges.
/ Z0 N* q* Q* h3 _. x Mic: Range –40...+20 dBu" r2 N, d( K* A2 P
Line: Range +14 dBu, +24 dBu
% Q. F/ ^7 t, j$ ^( ^- V, Q[3] Fine Gain Potentiometer for fine input sensitivity setting.
' N2 D4 |8 c6 ] Range of additional gain: 0...+15 dB.
# }9 j* [& Z7 |, ? Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents) U v, v* A1 X3 f
the dBu value of an analog input signal which causes a full-scale output of
6 |% `: O% O+ Y the A/D converter.: _" r. X6 a# J8 z9 o; a6 S
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
' |3 u9 ~1 v0 g the peak level is therefore +16 dBu. The “Input dBu FS” rotary6 A7 X8 o/ O1 o: v3 E
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine2 g5 z. ~7 \3 F$ B) q2 ?' X1 R3 s
Gain” potentiometer [3] increases the gain by 8 dB.
, b; r4 A6 d" E* S8 t[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
" }. c4 M: ^& W. Q3 B7 E[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
+ I4 y9 ~! y# Z' X+ f+ @* `5 u have more body; percussive instruments are less aggressive. c- R; r; _$ ?1 n+ R, x
The group delay behaviour due to AC coupling of the stages is different in: T9 g) H8 I! B) k+ a2 _* ~
tube amplifiers.
/ a# ^* t$ z2 t: \3 J- V The “Bass Warmth” control allows to select the frequency range
) I" e# q, g' P: q1 N (10...200 Hz) within which the effect is active.
5 m" Z4 r# Z& c @% L[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.! Y" Y% o( Q/ s5 |% v
Valve amps have a characteristic response, mid-frequency harmonic content+ \/ v- p9 Z; z2 z E' s
is emphasized.* D2 A. [# A3 e e8 n* b
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.& u5 d4 t. m- l- {, e8 M) B; c
The harmonics spectrum of a delicately overloaded valve amplifier is completely
u o4 {6 @( v+ n" \7 J# y$ G1 z/ J+ W different from an overloaded transistor stage.& n% e: D/ t( n
The “Gain” control adjusts a gentle overload while the odd-harmonics content9 Y) U# o" |9 n' J' p
can be adjusted with the “Clip” control.
. f& ~- R' G. c' q2 h[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
q* t0 I6 \$ l) V dBu FS.+ ]$ g h @- N8 q6 F# X
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
0 W9 Y1 c% V( c& h! ^( g desired channel.
+ o$ w" z/ Y0 {. D; ?# x: U The “VALVE” LED is on when the Valve Dignifier stage is active.
/ G! S! }7 _5 w[9] INSERT INSERT function.
6 Z1 d( [7 O5 `* ~2 u; g: C; C( F First key pressure: INSERT POST VALVE, the Insert Send is tapped after6 t7 T; ~# X# p$ U
the valve stage (display: “INS”); the Insert Return is directly fed to the Line+ F# Z* F% M0 M- L* N/ o
and AES/EBU outputs.
& W3 o4 J; {4 O7 f" b; V Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before: _ |. T7 O" A( ~! `
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
! ]0 O: |$ k+ t3 \1 n1 N U the valve dignifier stage to the Line and AES/EBU outputs.
f! }. Q- I; R+ ?& s+ p o Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
6 M0 Q1 F. R2 L! r8 ` stage (if active) to the Line and AES/EBU outputs (also the Insert Send output; C, K4 u" L/ M: Y
receives this signal; display: none).
2 g; ^$ M6 o( ~/ Q8 l) z: g Insert Send and Insert Return are electronically balanced and equipped with7 r5 h6 L! H2 B) x) R8 G5 U
XLR connectors.
3 `; e# o9 t* Q( ^" g[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or8 \$ o5 a5 U* X
ADAT digital interfaces. Each input channel can be switched to one of the
" l$ M, |- H- F* u. |5 E& W! ^ channels 1...8 of the multichannel interface. If desired, also a mono mix is
o& y( y% ~% `1 S- A4 H- x possible by selecting the same output channel for both input channels. m5 ?5 G5 C: m! z
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
! I8 w9 n+ y. D& o6 I$ U0 ^ channel.
! u$ `6 V6 Q9 O7 a- y Can be operated only if the input gain selector is in Mic position. The
7 r1 U' c2 e. y setting remains stored when switching over to a line gain setting.3 m/ x! c; x x% Q7 b. `" g
[12] Activates the high pass filter on the microphone inputs of the desired channel.$ u( S6 X: e% N$ ~
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
% {4 j. c; t$ `3 f! ?- G. } W Can be operated only if the input gain selector is in Mic position. The
! }7 l# b# t& H: r setting remains stored when switching over to a line gain setting.
. h2 T1 c3 o6 ~8 K% F7 W[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
# w# } G# s+ o, n% g- w[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
; F4 p1 p, h/ T3 s3 {- n “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with0 z, Z2 l% x* d
Noise Shaping (display: “16NS”) can be selected.% i/ \' m- s" f
[15] SYNC Selects the synchronization source for the unit. Possible selections are:0 o4 D5 w5 M! h, `$ _
INT 48 Internal quartz reference, 48 kHz
3 o! V- o( C9 P# Y INT 44 Internal quartz reference, 44.1 kHz9 J( H; ]" ?. u+ Q
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)& [- a* w+ C- {5 C9 c$ s1 S3 @
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
# r* n+ h6 x! t AUTO Selects sources automatically in the sequence AES-WCLK-INT
5 I! K- E% M+ C! L+ W4 |* a8 |4 X VAR Indication only, active if the external source frequency deviates from 48 or5 a0 O6 K6 L# V2 b. v
44.1 kHz for more than approx. ±3 %.
+ a6 X( q/ p3 t# J% X" U8 E( G# ~[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
, g7 A2 ~4 \7 e% J8 N& a" Y either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.' T4 G3 U, v: h7 p
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce- y4 { R( G% ^6 \
the danger of overloading the A/D converter with short signal peaks (if
9 i$ n/ e, S* ]/ L& Y active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
; `! H# J5 ^- C+ H! l) V9 y allowing for approx. 6 dB reserve before hard clipping occurs
# F$ r; J6 D7 P R- b7 y
" ~# F. N+ S% O: A- ` ^+ @4 R - x' w0 G' @0 Z, a, e, \+ J
|
|