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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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& ?2 m; O9 E% P% f英文电子说明书
3 g3 `! F. H* ]- ?[1] POWER Switches the unit on or off. The unit is ready to operate with the factory6 v& r: X$ M) `+ i
default settings. The subsequent settings remain stored in a Flash EPROM
) G$ @& T3 ] ~) m after switching the unit off (unit contains no battery). p4 x: T3 ]9 c1 T) Z! p. e
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
) N) C2 ~! _2 o5 f* P5 i( f7 q& t between microphone and line sensitivity setting ranges. @4 G m# ]" }. T7 m6 k$ U
Mic: Range –40...+20 dBu7 Y) W" W8 e* V( U$ f O+ a: P
Line: Range +14 dBu, +24 dBu
8 w/ K2 m! f' d7 Z( Q' Q, i[3] Fine Gain Potentiometer for fine input sensitivity setting.
7 V0 t$ X; C9 m) \9 v7 c, F Range of additional gain: 0...+15 dB.
% v \& g0 [0 L! p' o. j: w Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
" {/ C) C, F( O2 f+ K the dBu value of an analog input signal which causes a full-scale output of
* u* @& H b$ N& V3 W1 G the A/D converter., Y% m9 e3 N6 p1 c. Y3 A& ]* k
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;8 ~' w) `6 Q4 D+ I9 W7 a( | W! g
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
( ~! U7 c+ c2 d! G; x1 G switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
4 E3 G) |! \$ L4 k2 R0 J+ d) s: ^ Gain” potentiometer [3] increases the gain by 8 dB.
7 g3 v4 C3 Q2 k: q7 N9 G! h7 c6 {[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
; f8 Z/ {# K$ j% p L[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
* U2 u+ S, K+ r have more body; percussive instruments are less aggressive.* r3 Z2 Q$ Y4 J6 {3 T2 m2 }; f) z3 b
The group delay behaviour due to AC coupling of the stages is different in
3 }( X$ \! w- ?8 |! f tube amplifiers.2 B1 E" m" w1 S9 u: V8 k, e
The “Bass Warmth” control allows to select the frequency range0 O3 h1 g. F5 j$ a7 e; K
(10...200 Hz) within which the effect is active.
5 o2 \( C# t9 l% `, K# p[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
( H9 v9 L! M! j6 c Valve amps have a characteristic response, mid-frequency harmonic content
$ _5 [% j) i B) C is emphasized.- L( e) U) G/ h" z2 ~1 Z/ d
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.8 D& { y- ], ? t: ^8 X* [) x
The harmonics spectrum of a delicately overloaded valve amplifier is completely
. M% O, z. c9 g- W% ? different from an overloaded transistor stage.$ q$ ]3 _8 e! O5 k
The “Gain” control adjusts a gentle overload while the odd-harmonics content. I9 ?: C4 a% K8 y. r7 P* E
can be adjusted with the “Clip” control.
1 P! S! ?- D" C9 @3 m[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
6 Y5 h# g9 ?, B- S dBu FS.
& ^8 e) I, ?% @% {[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the- z! i$ j4 r, k2 o3 @. i
desired channel.
- ]! c4 A4 {. G2 L The “VALVE” LED is on when the Valve Dignifier stage is active., u4 t: r4 w+ Z7 d$ l4 Y2 g# L
[9] INSERT INSERT function.- N, t: h$ W3 E4 `7 h
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
/ `: o' [9 A. B9 C5 _1 ]0 } \ the valve stage (display: “INS”); the Insert Return is directly fed to the Line
7 y9 Y6 ~! G2 a: r and AES/EBU outputs.7 ?/ J7 z6 Y: C
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
: F8 `' U+ W0 U the valve stage (display: “INS” and “PRE”); the Insert Return is fed via1 ]: v$ R7 f- i
the valve dignifier stage to the Line and AES/EBU outputs.) Z! k' C$ g, y0 z3 V
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
2 F& m' Q3 N) U3 _% ^ stage (if active) to the Line and AES/EBU outputs (also the Insert Send output" [; d! J7 x4 s. p. K" U" j
receives this signal; display: none).
4 f; s- W" F8 E2 Y, U Insert Send and Insert Return are electronically balanced and equipped with
( _8 e4 ]. F6 W& h/ X7 F4 d& F; q XLR connectors.
+ S, O2 {( ^3 q1 b; `[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or% |# [, i7 w& d2 R- P- a
ADAT digital interfaces. Each input channel can be switched to one of the
# \5 q3 g/ Z3 o; [; Z: b channels 1...8 of the multichannel interface. If desired, also a mono mix is2 [ P$ P8 e2 u8 K5 D
possible by selecting the same output channel for both input channels.
$ n' c' w1 M2 B3 R& r7 d[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone& c4 |8 X& l6 b2 n$ Y
channel.
+ L8 G5 i) ~) i. O' }/ ? Can be operated only if the input gain selector is in Mic position. The
) n/ t* w$ P: y! P$ W) M; N9 P setting remains stored when switching over to a line gain setting.1 G: F* b& {' `% s
[12] Activates the high pass filter on the microphone inputs of the desired channel.1 D- S d s# _: H+ g
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.2 `8 w, w8 j5 X, }1 K# Y
Can be operated only if the input gain selector is in Mic position. The, \9 A7 H% e) X$ Q' u( }( x
setting remains stored when switching over to a line gain setting.: i/ ^ m) V* F3 U( Z
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
2 H0 j; K0 u( j ]3 M( f/ x! a[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
& l8 j9 g! Q1 G “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with2 ]3 L6 `' H0 ]! H" g6 o' g
Noise Shaping (display: “16NS”) can be selected.
2 d7 _) s; n9 _, l+ |[15] SYNC Selects the synchronization source for the unit. Possible selections are:
; Y" k, Z' g& ^* m- P" X! s3 B INT 48 Internal quartz reference, 48 kHz2 j9 A: x5 Y7 D" ^! Y
INT 44 Internal quartz reference, 44.1 kHz1 V' h7 {9 u) A; O/ ]4 n
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized): v. g( k, r& T
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
4 \' C2 A( [" L4 O3 M" f0 N AUTO Selects sources automatically in the sequence AES-WCLK-INT5 Y" B9 L2 |* m# R! C/ A1 `! ^% m( J
VAR Indication only, active if the external source frequency deviates from 48 or$ P7 Y! U/ \* p3 y) h
44.1 kHz for more than approx. ±3 %.$ s! r$ }/ h6 ]
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
4 S. \4 m1 J; R U# Z8 o g3 e either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
' a/ r1 N: z+ k" _[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce( z" S4 W, c$ J+ z4 f
the danger of overloading the A/D converter with short signal peaks (if
' T/ k- |3 [. e9 | active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
X8 c9 [) s+ w% X" e allowing for approx. 6 dB reserve before hard clipping occurs
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