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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 ! n8 l* i2 B& e2 T( L5 r+ p
/ {4 W/ K3 j! ]- V英文电子说明书
0 S o6 b. S- M" r5 d[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
3 g* Z/ K0 P* P default settings. The subsequent settings remain stored in a Flash EPROM
+ h% D/ q% D0 } d. a; v0 k5 w7 B after switching the unit off (unit contains no battery).
( [9 P4 W7 k" [) H4 s% l[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
, d0 s: R- v+ w4 f. a" R- g* B3 Z5 c- r between microphone and line sensitivity setting ranges.: m; g4 S* I- v/ v
Mic: Range –40...+20 dBu0 y- J* y* q2 `: T/ i' W
Line: Range +14 dBu, +24 dBu" V9 w1 Y9 Y# D
[3] Fine Gain Potentiometer for fine input sensitivity setting.
0 b. L) @2 S8 k6 N2 V Range of additional gain: 0...+15 dB.$ Y. U$ O) a$ ^* v4 r
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents$ i( ?; |, ?3 L. w! [+ {
the dBu value of an analog input signal which causes a full-scale output of5 l& [9 ~* p7 n7 x$ @. G
the A/D converter.
' c. y6 D2 H/ H4 G Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;, d D* S D; z0 K5 V( ^
the peak level is therefore +16 dBu. The “Input dBu FS” rotary7 G3 y: r/ e: K9 Y( |/ i3 A
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
$ K2 Y) P5 X! y Gain” potentiometer [3] increases the gain by 8 dB.* b+ k/ U0 [5 B8 @7 h; _0 z; _, o
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
+ \0 O- n) \ ]" j" h4 v[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals ^4 \7 [ }) b: q) w: T9 p
have more body; percussive instruments are less aggressive.
- |( R+ ? i' d m. c7 h( J1 H The group delay behaviour due to AC coupling of the stages is different in
% k' k/ ]# c+ Z- x4 o' D B% | tube amplifiers.
6 U6 d; l9 p6 y/ L The “Bass Warmth” control allows to select the frequency range
& w2 }) n" A8 x9 F3 l (10...200 Hz) within which the effect is active.
0 A `) d" u4 k/ b" g& `2 j; [[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.& D: `7 b/ }7 S
Valve amps have a characteristic response, mid-frequency harmonic content5 T& \1 o$ S* c% `% q; R
is emphasized.
: R% b! B/ K3 v. _& c: R! n8 N[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.4 j- ^& x( ~: E1 p
The harmonics spectrum of a delicately overloaded valve amplifier is completely
: T) g( W9 M8 K different from an overloaded transistor stage.* v" V0 L( ^2 @ |
The “Gain” control adjusts a gentle overload while the odd-harmonics content
3 Y1 t8 s; j! w$ ~' \4 e can be adjusted with the “Clip” control.
- n; K- C- [7 W3 I N1 e[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...244 R* _2 u0 m/ }) W! o
dBu FS.
9 V5 V, b9 G6 _$ a6 M[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
5 T. D4 ?- M- M: ` desired channel.
6 [& Y* `' b4 @7 }/ O/ K% H The “VALVE” LED is on when the Valve Dignifier stage is active.
p: H( t" b# e% ^! l* S[9] INSERT INSERT function.
( `7 Y8 F& G7 q. {# _ First key pressure: INSERT POST VALVE, the Insert Send is tapped after
' C9 M! o8 a6 [+ f+ a the valve stage (display: “INS”); the Insert Return is directly fed to the Line3 R! u1 V) @: f9 X# R$ K( U
and AES/EBU outputs.
8 I6 N; i# a0 W! y Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before7 y5 E! y: g2 U) ~ P: e
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via7 ^ @# |7 e8 E) K: P, G2 j
the valve dignifier stage to the Line and AES/EBU outputs.
, |- P7 j2 y8 K$ |5 V# |7 X Third pressure: INSERT OFF, the input signal is fed via the valve dignifier; N* }5 \2 `2 e. c1 J8 q* n4 ^
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
0 S$ Z' t7 m! n) e receives this signal; display: none).
. U8 w/ a$ r8 K Insert Send and Insert Return are electronically balanced and equipped with( ~; l8 {# I3 S) I0 S) h
XLR connectors.& E* R: w# V, }! a
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
7 i. g6 P' m! W; z, e3 u$ _9 e ADAT digital interfaces. Each input channel can be switched to one of the6 J$ e* ~& t3 Y$ w% P9 W x: j
channels 1...8 of the multichannel interface. If desired, also a mono mix is
3 E% z+ H& Z6 e- V7 \1 ? possible by selecting the same output channel for both input channels.( r$ B7 b9 V. S- b& k" p4 r
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone, K- i& J+ \! |9 t$ E4 _
channel.
. ]* x8 P+ [, A5 T Can be operated only if the input gain selector is in Mic position. The
! [# [& U" j; f6 _& P setting remains stored when switching over to a line gain setting.
7 M0 W% b4 P3 A- F/ }) j# i. D[12] Activates the high pass filter on the microphone inputs of the desired channel.
6 M& f4 b* ? U3 r5 P5 Y- H3 i Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.$ T! ]7 M' f$ T- j, C/ V) d
Can be operated only if the input gain selector is in Mic position. The
9 T: [0 S5 R1 I+ j+ [6 Q setting remains stored when switching over to a line gain setting.
8 k; O' H8 ?& v P6 \[13] Ø Toggle key to activate the phase reverse switch of the desired channel.. ^" g+ i: z5 P, l. P' \
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:, J7 t- S% n/ B N- u7 X" P" U
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with7 u% s6 j+ t" ~+ }' n2 `
Noise Shaping (display: “16NS”) can be selected.
5 D7 g) J9 u2 p+ F! r[15] SYNC Selects the synchronization source for the unit. Possible selections are:
1 j% w7 ~/ c) z/ f6 P- ]. y INT 48 Internal quartz reference, 48 kHz5 f% h$ U; w: V# D/ [& P
INT 44 Internal quartz reference, 44.1 kHz
8 J/ e6 |) `( {, e( s& k WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
+ P: r, `0 r# u4 C& G AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)- I) v; X' [. m
AUTO Selects sources automatically in the sequence AES-WCLK-INT
$ K, N. q! f: R: |! _ VAR Indication only, active if the external source frequency deviates from 48 or' D n. u9 u3 ~& n" x& T/ t
44.1 kHz for more than approx. ±3 %.+ s& M' o Q6 {! P# Z* _" r6 E
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
3 ` K1 R) T) |7 a7 r/ }( i6 m either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.2 Q6 B6 U$ F; y- O: q1 Q
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce% ~5 c* k \0 }- a4 r+ M a
the danger of overloading the A/D converter with short signal peaks (if
v/ H; ~1 I n7 o& w1 y active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
3 j; e- \4 m- z' s7 K, Q allowing for approx. 6 dB reserve before hard clipping occurs
8 s6 @6 l5 m! S + {0 d* @- N4 x& X- K2 \- u
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