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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) M$ S& d+ r5 u) l6 x! Q6 r! l
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
/ a% z5 [" o2 s E default settings. The subsequent settings remain stored in a Flash EPROM
8 r1 P, I& F& n6 d, q' e' c4 t after switching the unit off (unit contains no battery)., f$ E/ I3 X1 _$ W* k
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
L5 d; I" @# V q" o& X: x between microphone and line sensitivity setting ranges.& H& E* h7 z- Z- i2 K# |! w
Mic: Range –40...+20 dBu
* ?% f; c4 k8 O# e5 B Line: Range +14 dBu, +24 dBu" [ [9 S3 ~. B7 P& m
[3] Fine Gain Potentiometer for fine input sensitivity setting.# Y, N$ F- X9 N3 c$ v
Range of additional gain: 0...+15 dB., H3 Z: s( x; R+ t& u
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
! O+ ^, l; Z5 s5 O+ X% ?9 b the dBu value of an analog input signal which causes a full-scale output of
1 Q1 {+ A# u, `- w) v g$ i8 o6 o; } the A/D converter.
! N* C* y& x, @7 Z Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
% c9 G5 [+ l7 R) f4 `4 Y6 W/ o( _ the peak level is therefore +16 dBu. The “Input dBu FS” rotary
- `9 \2 D) N- U" Y2 M) E; h switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine- U" g& |( S5 o* C; o# }
Gain” potentiometer [3] increases the gain by 8 dB.7 U, j1 c0 {# p; ]3 S* k# x$ }
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.) `, v, V4 K2 }6 K
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals. N) d- W: w2 P( L7 I+ X7 u
have more body; percussive instruments are less aggressive.
! f8 b! ~& w( R& f/ Y. H The group delay behaviour due to AC coupling of the stages is different in
0 g* h# ^1 b! d% W tube amplifiers. |! E( v% }4 k7 Z1 s; m
The “Bass Warmth” control allows to select the frequency range; J6 n a9 d; y5 ]! k
(10...200 Hz) within which the effect is active.. X9 k; O9 e' U3 B a
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.# Y5 U/ ~6 y. q0 [
Valve amps have a characteristic response, mid-frequency harmonic content
1 y/ g; e2 w; E, t s0 N+ J- B is emphasized.- ?. x' q. v" g# x6 H0 @6 B
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.- m m3 z! I/ X( [, N9 v8 @
The harmonics spectrum of a delicately overloaded valve amplifier is completely
7 F- B8 Q" t% _! h6 \- T; N. J& n" P' _ different from an overloaded transistor stage.
6 j5 z8 N" O8 s. [ The “Gain” control adjusts a gentle overload while the odd-harmonics content
( ?2 S- v& f+ l* g4 ` can be adjusted with the “Clip” control.. B7 v: Z E5 S
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...249 V2 ^( ]6 ?; m' U* v9 ^, P# F+ L
dBu FS.
/ T( j4 }7 U7 }" j[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the5 b5 g7 b5 _, ]8 _, R. s- X
desired channel.5 H- x0 H8 h5 [' j |8 u$ C& i4 j
The “VALVE” LED is on when the Valve Dignifier stage is active.0 G# ~9 P1 O" R* d- T
[9] INSERT INSERT function.
' ?! j( |/ z1 K% u7 h First key pressure: INSERT POST VALVE, the Insert Send is tapped after
4 y/ ]% N# p- F/ b ?5 H( | the valve stage (display: “INS”); the Insert Return is directly fed to the Line
- C( R. j+ ?: v+ A# {: ?) h and AES/EBU outputs.' ]5 Y3 a, M [% x$ j
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
; L/ U# I+ r Q: O* b- U& { the valve stage (display: “INS” and “PRE”); the Insert Return is fed via1 i3 b5 n6 q! D
the valve dignifier stage to the Line and AES/EBU outputs.
0 X, H |* X! s! U Third pressure: INSERT OFF, the input signal is fed via the valve dignifier1 z! w( U1 v0 D9 e1 V. i U
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output# @" i" [/ o) ~* u
receives this signal; display: none).* I& \+ L6 J9 T1 \# A
Insert Send and Insert Return are electronically balanced and equipped with
4 w) f/ p, c* j9 w n XLR connectors.& x; Y9 v9 C5 u# T& f" t" {
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
# ^8 L r2 h' V9 p, g2 m1 Z ADAT digital interfaces. Each input channel can be switched to one of the
. Q. F. p8 T: P; r# U channels 1...8 of the multichannel interface. If desired, also a mono mix is9 z$ G) J8 p- j
possible by selecting the same output channel for both input channels." f: c' D+ ~3 q' O ]
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone1 c. h/ X, @. |. N! R
channel.
& S& ^3 m8 E2 A Can be operated only if the input gain selector is in Mic position. The
. i2 \& V4 o" _0 E1 g" R setting remains stored when switching over to a line gain setting.
* p9 u0 a9 B: a( ^+ Y% a6 i9 k* `[12] Activates the high pass filter on the microphone inputs of the desired channel.1 \+ k0 k% X$ d7 D2 h
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
, e7 i4 F! c- {! @0 [" R Can be operated only if the input gain selector is in Mic position. The$ H8 |7 k" q; g6 D
setting remains stored when switching over to a line gain setting.
% t- t4 h7 T$ u" [+ A[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
& Y% l; S7 G# M- f% I6 ^[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
$ f( b2 h" h3 X' z* E3 R “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
& u3 s2 r9 f- J: z! n/ h1 d Noise Shaping (display: “16NS”) can be selected.
1 c3 w$ _ }0 p h5 f" c2 h9 c[15] SYNC Selects the synchronization source for the unit. Possible selections are:
/ ^$ `& B5 b2 i. A INT 48 Internal quartz reference, 48 kHz# k/ n4 c$ L6 `4 ^, u
INT 44 Internal quartz reference, 44.1 kHz
* H/ D' Z7 j: P5 p/ G+ r! N WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)% T+ o4 ~3 c' Y
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
n, [ n8 ]# Y AUTO Selects sources automatically in the sequence AES-WCLK-INT
# x7 n6 b" t% s, x! J: O! z' M9 Y6 r VAR Indication only, active if the external source frequency deviates from 48 or7 Z# m$ E4 c9 |& B9 `
44.1 kHz for more than approx. ±3 %.
) I1 R# y# a1 p9 j( e+ b% }5 E7 a[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
. O& q/ N% p ` either permanently (display: “HOLD”), or with automatic reset after approx. 2 s./ O( W, L( g( o8 R2 l9 }/ i
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce$ s8 ~* s. j8 ]8 V5 X) @
the danger of overloading the A/D converter with short signal peaks (if
* x/ l+ O2 q+ i' a0 j2 M7 E active, the display indicates “SOFT”). Threshold at 3 dB below full-scale, e: S! Q8 x- u# q0 h$ M7 [
allowing for approx. 6 dB reserve before hard clipping occurs
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