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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
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英文电子说明书
; |! Y l! j% c( w/ ][1] POWER Switches the unit on or off. The unit is ready to operate with the factory
v1 r$ `/ B/ e) Z/ l default settings. The subsequent settings remain stored in a Flash EPROM7 S$ J, c9 e% u: }2 e+ H; O# n* K3 V8 U
after switching the unit off (unit contains no battery).
; \, j9 N5 f) w7 @6 Q, z- G[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position0 ?' l; s4 J! |; g" _/ C
between microphone and line sensitivity setting ranges./ }1 T S# I; C3 `
Mic: Range –40...+20 dBu8 g5 Y: @6 J' G- _. x7 i
Line: Range +14 dBu, +24 dBu. \ K! U; {9 ?; H
[3] Fine Gain Potentiometer for fine input sensitivity setting.
% w/ v. }2 v6 P6 n0 _3 ^, O Range of additional gain: 0...+15 dB.
( a/ Y9 k' ]' Q& P' N Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents/ A, q1 O0 S- r0 n( }, _
the dBu value of an analog input signal which causes a full-scale output of% }6 j: I, I# z* {5 ~; _( M% f
the A/D converter.
! p% C! x) K! E+ z! B) F Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
: q- m# R0 N/ Q) C! F9 u; U2 l the peak level is therefore +16 dBu. The “Input dBu FS” rotary
# }4 |7 |# ?7 ~1 c1 H6 l switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
, a& S8 \0 K% f# I Gain” potentiometer [3] increases the gain by 8 dB.
! \) M# M# {5 H T[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.; ]: f' \' A2 X1 i0 J8 b0 Z7 f
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
' |& ?! Z/ i g3 d- s have more body; percussive instruments are less aggressive.9 ?) M6 G9 l2 Q- N( H
The group delay behaviour due to AC coupling of the stages is different in4 R+ _5 t) I& J; S
tube amplifiers.
& t. N6 r; o9 e/ X& l The “Bass Warmth” control allows to select the frequency range; \- T& }0 W+ V4 G6 x2 m) d( K
(10...200 Hz) within which the effect is active./ E* |$ P a: ^1 b0 j2 B
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.+ g1 Y1 B2 Z1 |, @ e' g$ [ [
Valve amps have a characteristic response, mid-frequency harmonic content& n$ K8 Q+ ]; B. q. G' X
is emphasized.# M) R# H9 s: ^ [: }7 ^& u! Q8 U
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
$ o" O) _# }, @) C$ o# j; ] The harmonics spectrum of a delicately overloaded valve amplifier is completely) { M) ?% ]2 Z( A. n6 Q
different from an overloaded transistor stage.
1 d) c8 n: K* T Y The “Gain” control adjusts a gentle overload while the odd-harmonics content
/ T$ C; [9 F7 x& \9 @' { can be adjusted with the “Clip” control.; l. j2 V% K7 B1 C- w
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
! d$ _7 h# D" X k dBu FS.
J0 A- ~. j3 I2 w. V. Y. y% h[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
0 u. u5 Y; l# N/ G" k6 b0 ? desired channel.
! }$ X8 }6 f& A9 ] The “VALVE” LED is on when the Valve Dignifier stage is active.. Q7 g k) G5 B0 x' M
[9] INSERT INSERT function.& N- X- g' T1 l9 F$ s/ U0 A- B8 x6 v7 q
First key pressure: INSERT POST VALVE, the Insert Send is tapped after1 t/ u: X: f$ G
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
' X' r) |1 F+ a' S7 g4 ? and AES/EBU outputs.
, V# U: X# h! d0 a2 ?. ^4 a Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
/ v, n7 L X" R' N: p2 |3 T- O the valve stage (display: “INS” and “PRE”); the Insert Return is fed via: K4 O: e. S% H
the valve dignifier stage to the Line and AES/EBU outputs.
2 \9 `0 C V7 y7 L& | Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
1 \& t4 U# G! g- r F3 m" @" O stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
& D" z2 Y6 A$ v6 [1 q* M6 d receives this signal; display: none).7 o: N, X& S6 [ U
Insert Send and Insert Return are electronically balanced and equipped with, d7 v; @& `2 L ^9 P
XLR connectors.
9 i6 D& j+ P8 X/ k. h& N: m4 t6 Q. O[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
8 c) `- M( b- z+ c: V6 J1 ]. n. ]. ^ ADAT digital interfaces. Each input channel can be switched to one of the( V" M7 ?$ R# S& l/ e
channels 1...8 of the multichannel interface. If desired, also a mono mix is
+ W! R |, Y1 y* ~ possible by selecting the same output channel for both input channels.
9 B5 c& e1 \0 N' d2 |) B[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
5 n1 j9 Z" b6 }' {- J1 v6 [ channel.8 ?9 L: ~% \$ {0 O0 c1 _& F) D4 b8 L. V3 v
Can be operated only if the input gain selector is in Mic position. The
# |% q! H2 r+ U6 q6 I' V setting remains stored when switching over to a line gain setting.
' K* U ?& W' ^) V[12] Activates the high pass filter on the microphone inputs of the desired channel.4 _# I i6 } r- x/ g
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
7 t# i& Q! |: _4 I, z/ \% s Can be operated only if the input gain selector is in Mic position. The
# |1 U( Q( ]) s/ ] setting remains stored when switching over to a line gain setting.
( f. G8 Q5 C# ]6 X[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
; ~4 k) P) _/ F9 r r[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
* K2 Y2 H& v' U4 l- B “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with' j8 ~7 H: R- E% e
Noise Shaping (display: “16NS”) can be selected.
/ ~+ s2 X' O- {6 G[15] SYNC Selects the synchronization source for the unit. Possible selections are:
, w' o. ~8 k. b' H2 Q INT 48 Internal quartz reference, 48 kHz2 [: t" y- N% X
INT 44 Internal quartz reference, 44.1 kHz0 e m E- h, l4 v. W# F: ~7 G- o
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
# S' \; k9 m' d; B k AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
! ]3 T F3 ? E! b AUTO Selects sources automatically in the sequence AES-WCLK-INT" n4 y) @" [9 D1 ~8 [
VAR Indication only, active if the external source frequency deviates from 48 or0 V) J3 u5 t" k; u' h! ?+ I
44.1 kHz for more than approx. ±3 %.
& N4 V8 }3 e: O) i" r7 m[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
# Z4 e# F- E. v4 c3 V: ^5 W either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
+ f! v& t+ k$ e1 m- q) P7 X/ d[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce9 q; P/ q5 p9 J* j5 a" {
the danger of overloading the A/D converter with short signal peaks (if2 ~% }+ D% h9 G- v" X# j
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,, W: A/ Y8 B2 y. R) C" Y, u. Y
allowing for approx. 6 dB reserve before hard clipping occurs
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