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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 # j6 ?0 d: n/ r, T
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英文电子说明书
9 v( e% E. h: F. F. o9 U' h[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
+ z8 H; C& U( b1 E default settings. The subsequent settings remain stored in a Flash EPROM+ `- @# R( I3 T. T) ^8 i
after switching the unit off (unit contains no battery). @; R0 H; I" B3 |0 w( t2 b! l. e
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
; M5 a; }0 D- J- N$ l6 R between microphone and line sensitivity setting ranges.2 J$ Y3 Z% m% ?: x% _* [5 T
Mic: Range –40...+20 dBu
4 d8 ^# r8 _% u4 O Line: Range +14 dBu, +24 dBu: u( o1 }" R L. ~; O$ O
[3] Fine Gain Potentiometer for fine input sensitivity setting.* g7 [* I) C# u* p: d& V! M
Range of additional gain: 0...+15 dB.
3 w R$ N4 b0 X- V& |; K Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
$ Z/ J- N- ~3 ^6 V. y the dBu value of an analog input signal which causes a full-scale output of
& p4 k# o. L5 p# N* B o4 w% p the A/D converter.
8 `, H: G1 A" y$ t+ f) z9 ^ Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
( ?/ D4 i6 |% |" A, v7 ?, P the peak level is therefore +16 dBu. The “Input dBu FS” rotary
6 Y- M$ |( V8 `5 @ switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine" p: @' y$ i" h- G9 J. j! s4 `
Gain” potentiometer [3] increases the gain by 8 dB.
- ?8 N" v! p0 u5 U[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
; f* O+ ^" Z6 \" L F7 U, j' O[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
6 R9 ^6 t! v) e2 n' F have more body; percussive instruments are less aggressive./ ? A) X) |0 T7 _$ ?% c3 p# b. b/ i
The group delay behaviour due to AC coupling of the stages is different in
7 k. i* f2 a4 A" O tube amplifiers.
* L+ o0 C1 L3 h$ b: N The “Bass Warmth” control allows to select the frequency range. K1 \# W& Z* R; @$ \
(10...200 Hz) within which the effect is active.& s9 g5 K8 n; F5 |
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
" U a) C8 V& Y9 @ Valve amps have a characteristic response, mid-frequency harmonic content
5 d2 O! G- e$ b is emphasized.
' w+ B8 G) t/ j( ~[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.- }; E& A/ \6 ?& i
The harmonics spectrum of a delicately overloaded valve amplifier is completely& g3 c" A( h( x8 R
different from an overloaded transistor stage.
7 q9 j, e$ c1 ]; m7 |! L The “Gain” control adjusts a gentle overload while the odd-harmonics content
8 v, e2 \8 y5 C3 x can be adjusted with the “Clip” control.
1 {& E1 H t. _1 G# W: X/ p[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24( T0 X$ [7 ?5 y
dBu FS.
2 O( U" e* Q) E0 I0 b' C[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
5 j6 n8 j* g- g1 g& U desired channel.
4 p; i4 K" L& y The “VALVE” LED is on when the Valve Dignifier stage is active.% s8 r. [- s9 R3 Y5 ^: k) E
[9] INSERT INSERT function.- ~" ~7 X. E' [0 I5 k
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
7 k* P# r- s& J7 b( `9 k5 D% Y the valve stage (display: “INS”); the Insert Return is directly fed to the Line
9 k# w2 ?" u2 H" Z& h+ [5 o and AES/EBU outputs.% E4 R! j6 V" I+ x4 r
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
7 X. k. m" b1 M1 N the valve stage (display: “INS” and “PRE”); the Insert Return is fed via. g: `/ q2 H( ?, f8 q
the valve dignifier stage to the Line and AES/EBU outputs.
+ r, o, D; r% i% a9 e Third pressure: INSERT OFF, the input signal is fed via the valve dignifier) p& Q# k# W, Y9 ^+ B
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output& r- Z3 V* B! T. c
receives this signal; display: none).
" I% x4 m' [1 u9 ?4 [9 {8 ]- D Insert Send and Insert Return are electronically balanced and equipped with, }+ S: \6 J4 l( f. ^
XLR connectors.
4 M- @+ a0 l# l$ H) m[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or8 v/ j/ K& P% \( ^% r; }
ADAT digital interfaces. Each input channel can be switched to one of the
# o, H0 `0 S, m. b9 S9 @% d- X channels 1...8 of the multichannel interface. If desired, also a mono mix is, v5 h+ r- W, t6 W# ?8 g2 c
possible by selecting the same output channel for both input channels.
& n; X6 a: H9 D% {6 e3 Y[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
8 u+ a+ I* {2 x" Z channel.
4 T( T9 J4 |' q7 z- r$ | Can be operated only if the input gain selector is in Mic position. The( d7 |9 B! Q5 E
setting remains stored when switching over to a line gain setting.
3 T, ?$ ~' j% T" n4 Q- i H3 P1 y[12] Activates the high pass filter on the microphone inputs of the desired channel.
" J, n$ E; R6 G& F8 u4 k* r Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.3 k& k* i' u" S0 A; H
Can be operated only if the input gain selector is in Mic position. The' a0 v4 U/ R- \" E' d8 d' Y4 U
setting remains stored when switching over to a line gain setting., x6 i# P8 z1 i" [+ k# i* l. s
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
- s# G* D/ B: E6 b2 K[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:) J) l$ m$ k+ G* V F5 D% ?+ \" Y
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with& f4 K# Y, y1 i* H3 ~; k" }
Noise Shaping (display: “16NS”) can be selected.
' O/ {, ]; ~6 @) R" X: z[15] SYNC Selects the synchronization source for the unit. Possible selections are:2 i3 E, _( D$ a$ k8 u
INT 48 Internal quartz reference, 48 kHz1 ^3 D+ V6 p- d. a# [2 E
INT 44 Internal quartz reference, 44.1 kHz
& x" [. n$ t* M3 b WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)& i6 ~1 j R) N" j* b- w( o
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
' M' R- \3 P- @; d: F" k AUTO Selects sources automatically in the sequence AES-WCLK-INT- t2 w4 e/ F. L U
VAR Indication only, active if the external source frequency deviates from 48 or
4 v. r# A2 r4 W2 J I% f) Z 44.1 kHz for more than approx. ±3 %.# {7 ]" P* O8 x1 C( U% o
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –0 K3 @5 ^$ G2 W
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
, D6 Z- w& ~0 j+ j$ n9 T[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce2 @# q5 l8 K L5 V6 E( H o
the danger of overloading the A/D converter with short signal peaks (if" _$ h. l; x! f
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,2 u8 w& R+ U9 }5 F* s
allowing for approx. 6 dB reserve before hard clipping occurs
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