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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 0 J3 h% K# y9 Q2 A( y
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英文电子说明书
# q) h. Z) E0 T$ j/ O- s+ E( M6 N[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
9 T' y, u9 {1 _: j: V2 X" s default settings. The subsequent settings remain stored in a Flash EPROM8 D+ J8 K# J) u, |
after switching the unit off (unit contains no battery)., U' j( S# e; K# a# C9 {2 r5 `
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position# q+ ?& e4 y! V+ i
between microphone and line sensitivity setting ranges.5 l% Y {, d8 [" q9 H* e# n, ?0 w) P
Mic: Range –40...+20 dBu% A5 `- `0 ?) f6 W! a1 N
Line: Range +14 dBu, +24 dBu& {* O& P; \7 k8 j4 K; q/ R
[3] Fine Gain Potentiometer for fine input sensitivity setting.
& ^$ j2 B6 ^, h* C, H0 K/ M* N Range of additional gain: 0...+15 dB.
: H2 I o6 ~$ y& {5 Q Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents$ h5 Z; P% Z% o
the dBu value of an analog input signal which causes a full-scale output of
" \" L) z5 E0 o: j5 V4 y the A/D converter.0 K& q; Z' `1 \9 S/ I0 R, H8 a
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;' r. i- h9 O9 s$ f4 W$ k
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
. ]- u: T- d( y1 \4 t- `: z switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine6 Z5 o9 X% B" ]2 k" q, _9 Z2 A4 V* m
Gain” potentiometer [3] increases the gain by 8 dB.
- @% \, c$ B7 S6 e5 ]. e: ][4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.2 {/ Q: i, q2 j" M/ k. ]
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals0 _5 a2 h0 {# l3 H3 e
have more body; percussive instruments are less aggressive.. H9 k" u* k$ T6 z
The group delay behaviour due to AC coupling of the stages is different in4 V% U: Z" S5 |2 ^1 {
tube amplifiers.
. d/ d5 ?* W) A1 B( @- d" H The “Bass Warmth” control allows to select the frequency range
& y4 j w$ O& u$ | (10...200 Hz) within which the effect is active.
( ]0 I) M9 P! F[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
$ n; q1 f& Z5 F8 [3 J! p8 n Valve amps have a characteristic response, mid-frequency harmonic content
9 y% n- A- x9 m is emphasized.2 G8 ~9 H e$ W3 z, O
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer., |& k! i4 l: n1 t/ u2 B: }; X+ R. C
The harmonics spectrum of a delicately overloaded valve amplifier is completely) S% i1 G" u9 [: [
different from an overloaded transistor stage.9 ?/ o( ?5 A, K8 b! j
The “Gain” control adjusts a gentle overload while the odd-harmonics content0 D" g Z5 Q$ V
can be adjusted with the “Clip” control.! w' d- C# {9 k+ |5 K- {
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
( [' U7 Y4 B% z- K( O' \ dBu FS., I, X' u5 r7 L4 z3 \/ a
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
6 } q% R7 ]' x9 V2 S desired channel.
6 c- ~& @+ l) r3 N5 W: D% h$ d! G1 @ The “VALVE” LED is on when the Valve Dignifier stage is active.
( d6 n; T" K4 F[9] INSERT INSERT function.# O$ t: T5 c E( ]& h" a& d
First key pressure: INSERT POST VALVE, the Insert Send is tapped after- c" j: _& u" I5 J2 ^ r
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
+ R7 p& n; |/ t" f- `0 T and AES/EBU outputs.
2 y0 H* N2 N6 P; c: k2 M: L Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before% Z. ^% S, i6 s7 J& I
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via+ D# O- k' ~) T# J$ `
the valve dignifier stage to the Line and AES/EBU outputs.
8 d' j2 t" P& j, U( d Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
' p. W- l0 d1 O/ _' ? stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
3 W" y! \+ q/ a. V+ a2 K receives this signal; display: none).+ |, l1 I1 Y) o8 O' U
Insert Send and Insert Return are electronically balanced and equipped with$ z X9 z2 h2 M7 A! n
XLR connectors.1 M5 Q6 O( { l8 O8 ~2 [5 s
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or; ^! x, \# W0 C* W% |/ G; k7 R
ADAT digital interfaces. Each input channel can be switched to one of the; l! N- W: C7 ]( b& O+ u
channels 1...8 of the multichannel interface. If desired, also a mono mix is
& B( e; d! P1 { possible by selecting the same output channel for both input channels." o: R9 ?( { |0 v+ g6 G9 s2 M0 E
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone9 i* T- e9 w7 d$ T5 R' p0 |! D
channel.
3 G4 y; s/ T1 n" C- \5 k Can be operated only if the input gain selector is in Mic position. The3 u8 u1 O% U9 _, K
setting remains stored when switching over to a line gain setting.
' a2 b: i2 u& F[12] Activates the high pass filter on the microphone inputs of the desired channel.
! f2 z. } r' m Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.6 m4 N3 d2 o0 k/ R; w) Q& u
Can be operated only if the input gain selector is in Mic position. The' q7 [1 z8 G: K* H3 K
setting remains stored when switching over to a line gain setting.
' s# y3 `+ n* [3 {4 U! {, B[13] Ø Toggle key to activate the phase reverse switch of the desired channel.$ G7 N) b7 D5 w. m8 j% r1 U2 ~
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:) S4 Z, b5 g* }
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
: e3 f- C& A' O4 w5 w Noise Shaping (display: “16NS”) can be selected., e* i- X9 N6 w# R) B9 z& ?$ }
[15] SYNC Selects the synchronization source for the unit. Possible selections are:5 d6 h1 I* V$ V) |+ i- @
INT 48 Internal quartz reference, 48 kHz- I& X R6 x! M
INT 44 Internal quartz reference, 44.1 kHz
3 J! f+ q/ _; L, [* J( o/ n6 C. X WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)- q6 F4 J4 ~+ `( ~! m. o4 o; j
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
1 S: x# Z0 `" a i$ P AUTO Selects sources automatically in the sequence AES-WCLK-INT. L% Z4 Q/ Q8 J$ }: ^2 J4 ^4 N
VAR Indication only, active if the external source frequency deviates from 48 or
! d J1 }% ~4 ]7 a: ]0 T: L3 J$ ? 44.1 kHz for more than approx. ±3 %.
. U( v& f- V# _5 l4 S* w2 r[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –! x4 X# C! H. i F
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
$ X9 ]' R8 b$ {; H6 p4 J& S[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
, [6 z% r5 o! F6 H the danger of overloading the A/D converter with short signal peaks (if
3 C" }) j$ p! j; y$ d5 H) j% v active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
% Y& n. {- d- V allowing for approx. 6 dB reserve before hard clipping occurs
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