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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# \* b/ L- K8 F# O/ [
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
8 o, J0 M5 ~. U7 T0 {/ n default settings. The subsequent settings remain stored in a Flash EPROM
& q; M) n; o/ y& C6 N ] after switching the unit off (unit contains no battery).
7 y* D; e5 L4 D, A4 ?0 @[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position3 k9 {+ [8 |. c# K! L% Q3 ?9 n
between microphone and line sensitivity setting ranges." k3 ]+ q$ r. P. W: H. w& `. B5 ^
Mic: Range –40...+20 dBu
9 n1 z1 b* I2 `1 Z Y' r0 S Line: Range +14 dBu, +24 dBu" I* D1 i `% a5 g2 Q2 h$ d
[3] Fine Gain Potentiometer for fine input sensitivity setting.
- O2 K3 m& P- o; c5 d Range of additional gain: 0...+15 dB.9 h9 r# A* W1 C! o' T
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents" A E+ @# R# Q( O+ b, X# |# B
the dBu value of an analog input signal which causes a full-scale output of# Q& V' p7 b0 _ W! ~; E7 G5 Z
the A/D converter.
5 r( R8 U% U0 o3 ^! n1 C7 c* r Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
2 e/ v7 |# ^5 h the peak level is therefore +16 dBu. The “Input dBu FS” rotary
a, g) _. }! d/ x. p switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine0 W! O% p2 G& j( B0 T( o* K; x7 J; `
Gain” potentiometer [3] increases the gain by 8 dB.
4 l3 N6 ]! B* a: o4 i- [[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active./ w. c, U) I- Z, u. D' n
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
0 s3 h. V* X/ s. l. G) A8 h8 S have more body; percussive instruments are less aggressive., @* b1 ]- U3 c) y" H! {9 v1 g
The group delay behaviour due to AC coupling of the stages is different in1 M9 ]/ \0 i, f# T& F/ X+ W+ r
tube amplifiers.
- d% Z% f) k" t W( o5 c The “Bass Warmth” control allows to select the frequency range: v P+ h, [) Q" T( V
(10...200 Hz) within which the effect is active.( w: p6 D3 m) e; @/ w, a( }8 F, i
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
) R% w* }5 g- @7 n' W Valve amps have a characteristic response, mid-frequency harmonic content1 e+ s! V4 Y6 Y+ o( F7 R
is emphasized.
9 V( \' v* o3 d# y2 z/ Y[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
/ v. W8 K0 a) P. h7 m1 B0 E& W) b The harmonics spectrum of a delicately overloaded valve amplifier is completely
; W9 N: H& r3 H9 M different from an overloaded transistor stage.5 \3 J: [, U: M& @' w
The “Gain” control adjusts a gentle overload while the odd-harmonics content
% i8 w& X2 c: y can be adjusted with the “Clip” control.
6 a8 J( H# g" e' G. A) L, ^[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
) s. P4 D, }$ D s2 q; \% l3 ^2 z dBu FS.7 D" g% D! t, n; S" k
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the5 }( `! N V9 \6 a0 c! g; j
desired channel.
+ U- i3 }+ t X8 J* o8 j8 f The “VALVE” LED is on when the Valve Dignifier stage is active.% I5 h( d3 ]* ?& }8 A) P, o
[9] INSERT INSERT function., U/ t1 G5 U! j$ E( }' l
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
3 K# u& L% ?2 w the valve stage (display: “INS”); the Insert Return is directly fed to the Line
8 n3 G8 Q i/ V0 G; O$ ^8 t# e and AES/EBU outputs.
8 U; q6 ~& O( e Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
$ W% c! n" b. t, R- V; v3 H the valve stage (display: “INS” and “PRE”); the Insert Return is fed via2 \+ F" m6 j- R1 v N
the valve dignifier stage to the Line and AES/EBU outputs.
# v. }: _ K( Y1 L* p& M Third pressure: INSERT OFF, the input signal is fed via the valve dignifier, h+ K) x. p6 z8 A
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
- O7 J! s7 P. r$ _0 B0 }9 u3 Q0 ` receives this signal; display: none).
' a4 c! N, k9 x! l5 v! ] Insert Send and Insert Return are electronically balanced and equipped with L# z1 t: o: M+ T' @
XLR connectors.
5 T* d' g; `/ ?3 g$ a, y& X9 o[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
* A4 A# J& n' k8 i( L( R5 j ADAT digital interfaces. Each input channel can be switched to one of the3 ~9 v+ f8 ]5 ]( h2 r
channels 1...8 of the multichannel interface. If desired, also a mono mix is% p& H9 s2 c" ?3 s. D; `* ^
possible by selecting the same output channel for both input channels./ @' x7 l7 D+ z+ W2 R6 D$ [
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone. P1 @# u% o3 E7 M
channel.
9 l- Z. t- b' ~' a' {) `0 w1 \% Y1 S Can be operated only if the input gain selector is in Mic position. The
! s6 ?" S9 R6 ` setting remains stored when switching over to a line gain setting.% U/ n( P) `, k; h9 S
[12] Activates the high pass filter on the microphone inputs of the desired channel. z, v9 v. t# ?" Y& Y6 i
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.9 n, ^* p4 }0 l J/ |
Can be operated only if the input gain selector is in Mic position. The
8 H2 v5 N( x" {; E setting remains stored when switching over to a line gain setting.# l5 Z, t. y a# k$ B4 H
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.1 |% G; V0 _2 ~. j5 i7 D8 ^" d" w
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
, F y: R+ M" W3 @1 }% |/ @1 K “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with! p- o4 l) O5 J4 V9 L- U. a0 |( H* r
Noise Shaping (display: “16NS”) can be selected.
* E4 v, B- e: ~8 f[15] SYNC Selects the synchronization source for the unit. Possible selections are:* H$ Z" S1 m, q% R
INT 48 Internal quartz reference, 48 kHz. Z) o1 h0 O9 M, t; ]1 }/ m @
INT 44 Internal quartz reference, 44.1 kHz
$ p! {# v! Q" R6 o7 r WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
( P1 {) }# i1 s% W3 Q6 p AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)8 f0 |+ ^$ p, `- f( R& \* V/ n
AUTO Selects sources automatically in the sequence AES-WCLK-INT% j3 M7 r. p7 Y) b: @# z
VAR Indication only, active if the external source frequency deviates from 48 or
+ T0 s5 f* K1 U# j m3 w& [( @ 44.1 kHz for more than approx. ±3 %.
' Q0 h% K' Q+ v9 o, z& c[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –- e- j7 `8 a7 v. i- Q7 c
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s. K/ V5 J# A7 Z# E
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce. h# Z2 Y, A2 C R& U1 a+ t
the danger of overloading the A/D converter with short signal peaks (if
+ Z0 F( t4 Q( ]) ^4 E; e active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,6 h8 I* U7 }+ m9 ~
allowing for approx. 6 dB reserve before hard clipping occurs+ X2 n, e3 H; p6 o
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