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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
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英文电子说明书
& t9 y2 H! `* p# {" p[1] POWER Switches the unit on or off. The unit is ready to operate with the factory: u2 o6 \( V6 ~. s. A; S
default settings. The subsequent settings remain stored in a Flash EPROM' C8 D. L, @. l; b
after switching the unit off (unit contains no battery).' c* L: X" w* i3 i- w- t w
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
' p4 x8 {; G4 y* J between microphone and line sensitivity setting ranges.4 i$ X* ]/ q, x) T6 H
Mic: Range –40...+20 dBu
' v( T7 ]3 G- b( | Line: Range +14 dBu, +24 dBu
4 F9 z" m: x$ q( t% i[3] Fine Gain Potentiometer for fine input sensitivity setting.
+ k" @0 M K; }$ e$ G8 H Range of additional gain: 0...+15 dB.# ]$ y+ J' u" [( u0 Y t
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents5 {* u- [4 w3 L( y* w9 b) i* A
the dBu value of an analog input signal which causes a full-scale output of
: l2 D+ h! ~' R' } the A/D converter.
9 C4 L6 u7 V: L1 y( M9 ? Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;7 U- i' d- O; I/ D# ^" f
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
, ^, u7 G- ^3 V* p switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine) R' }& z7 |6 G7 S; [% ^" Y/ I
Gain” potentiometer [3] increases the gain by 8 dB.8 N3 y& ~, G7 Q, p% x. z e
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.6 P, k8 L+ G" y6 I+ |5 e) [
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals! q( b3 M" t% b, B7 ^' j8 N
have more body; percussive instruments are less aggressive.
; J# |( R5 ]3 g The group delay behaviour due to AC coupling of the stages is different in1 v$ _0 r/ A% g# u
tube amplifiers.
" m% Q- a) b$ y3 Q" {% x* ^. K) ^ The “Bass Warmth” control allows to select the frequency range, D' E }5 ~# y S. e) X% y
(10...200 Hz) within which the effect is active.) M3 `1 h- @7 q) t* v
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
7 L) U' F z C* @+ f% M: a Valve amps have a characteristic response, mid-frequency harmonic content( D2 F' N$ \, l- ]. ]$ @' Y
is emphasized.& p/ g% d" p" i. ^# F+ G
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer." S% N- Z0 D/ ]# b2 ]$ ^
The harmonics spectrum of a delicately overloaded valve amplifier is completely
1 H+ F! N/ r8 u0 R3 @9 e different from an overloaded transistor stage.2 B/ q/ B5 w& }" J6 L3 k2 D
The “Gain” control adjusts a gentle overload while the odd-harmonics content2 c& p. U; v8 ]+ m
can be adjusted with the “Clip” control.
! q4 s8 E: r% g D[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24; A5 a. R+ w9 a) U+ F; w7 W
dBu FS.8 m" s6 n. }- k) N! F" l( [
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
1 R7 m7 p0 d0 q# V, w desired channel.$ N1 V/ X2 O* \, l. D" o$ p- D) t4 l
The “VALVE” LED is on when the Valve Dignifier stage is active.8 @0 M4 h6 L8 G: w; | F5 m" o
[9] INSERT INSERT function.
2 ~* t: N' B6 g @ First key pressure: INSERT POST VALVE, the Insert Send is tapped after h, t! |" B: ~* X) o
the valve stage (display: “INS”); the Insert Return is directly fed to the Line7 y5 u9 W N4 x" H1 Z7 f
and AES/EBU outputs.
3 z u( p [4 |/ J7 l; o) K Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
- i& z/ d. @4 z7 k the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
. {1 u; `0 g# n the valve dignifier stage to the Line and AES/EBU outputs.
' {% a+ F) s; ]- D Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
( l; s* k2 O2 s stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
4 j" c) N+ u# M7 e( d5 S( ? receives this signal; display: none).3 Q: l5 I9 l* f* f1 ]8 W
Insert Send and Insert Return are electronically balanced and equipped with8 U+ r" C2 n6 i$ S
XLR connectors.
- v9 s1 a' U `[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
! m" B2 L, z7 V- |( D ADAT digital interfaces. Each input channel can be switched to one of the2 H6 r: C4 k" @# ]/ n# l6 l$ w7 U
channels 1...8 of the multichannel interface. If desired, also a mono mix is9 s3 l) s) F) ]8 m# }
possible by selecting the same output channel for both input channels.
; } c% u1 l; S1 C$ |% P6 N+ Z[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone% ]6 p+ _& T$ j0 d: ~7 w9 H u
channel.
# C6 \* R Y! e- p2 o q Can be operated only if the input gain selector is in Mic position. The0 u& P+ L7 d0 @; [
setting remains stored when switching over to a line gain setting.
# M8 b& o" h$ C$ W) L[12] Activates the high pass filter on the microphone inputs of the desired channel.
' ^8 J1 r+ L7 b/ g Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.1 X" j* k" L9 j0 I. @! f
Can be operated only if the input gain selector is in Mic position. The1 N0 e/ Q( r# B2 I G* {9 {1 c& a
setting remains stored when switching over to a line gain setting." G: e! N" y+ @8 n1 Y4 R
[13] Ø Toggle key to activate the phase reverse switch of the desired channel., C& q: Q0 [9 @, C/ ?7 U0 c7 }+ M
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:, x; L; D3 _! E6 j5 p5 m% c# M
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with- N/ U/ }: `3 ?/ n2 q
Noise Shaping (display: “16NS”) can be selected.
$ A/ S2 R6 }1 x! _[15] SYNC Selects the synchronization source for the unit. Possible selections are:
! R& K. N- _* F, u( p: q: G INT 48 Internal quartz reference, 48 kHz
3 w1 v3 }3 Y8 E& l* E0 N, p INT 44 Internal quartz reference, 44.1 kHz2 z. H, |3 A* f' e# D z0 u1 Y
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
/ F* J$ d1 S& e" u AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
6 y- q3 j: U: m5 Z- M* ~ AUTO Selects sources automatically in the sequence AES-WCLK-INT+ Q! _8 @1 ~0 ?" Q T/ R5 R
VAR Indication only, active if the external source frequency deviates from 48 or
8 C0 r) c5 y- j; D 44.1 kHz for more than approx. ±3 %.+ x& k; w" m! X' S: D
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –* ]$ S. j+ \+ V; q5 t
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
% J. ^, s N1 P( d5 P5 J7 V% F[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
) K( n0 X/ `, |6 l/ z$ k the danger of overloading the A/D converter with short signal peaks (if
4 @ d4 i9 O5 ^5 o5 i active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
2 b0 y. D7 m6 w) E allowing for approx. 6 dB reserve before hard clipping occurs
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