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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 . U. O% S8 n8 ^. R* G; p7 w& T7 g l
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英文电子说明书% A$ O! P* Z3 l0 s7 R
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory! D7 D' K7 K% l! V) V$ K8 w! w
default settings. The subsequent settings remain stored in a Flash EPROM
0 u: c" D$ O, I$ b9 l after switching the unit off (unit contains no battery).
9 ~! z5 l: B+ m; Y8 L$ L+ u[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position2 L/ ^7 }% S7 g1 z5 b# g$ R. ~! C
between microphone and line sensitivity setting ranges.
3 C7 d7 }; R: O6 H; G Mic: Range –40...+20 dBu
I5 f% N5 F# b8 Y Line: Range +14 dBu, +24 dBu4 J9 Z/ X' s# G
[3] Fine Gain Potentiometer for fine input sensitivity setting.5 L, v" R* u4 Y( @. g5 e
Range of additional gain: 0...+15 dB.
% v7 ~! C4 F- F; c; J8 U4 w/ v7 P3 F Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents" H3 R* `* T2 H- s. D% D1 ^6 w
the dBu value of an analog input signal which causes a full-scale output of
" C& B. E" s: x& j: G the A/D converter.4 I+ c5 e) L; ^( n
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
+ ?5 G0 F! G; [) C& M the peak level is therefore +16 dBu. The “Input dBu FS” rotary2 i* X _# W5 T o, `
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine/ n. \6 H0 n6 `( w8 m
Gain” potentiometer [3] increases the gain by 8 dB.( H- u5 H+ F2 ?' C8 I
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.9 D4 ?8 T% x0 y/ \. k! J7 U) g0 N
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
" _' ?% s, n, T6 q/ Q" p7 O have more body; percussive instruments are less aggressive.( o; m; c, G: L% R
The group delay behaviour due to AC coupling of the stages is different in
) t+ W9 w7 V, |" T6 t. T0 a4 } tube amplifiers.! i) x$ k6 ^& U# A2 q/ [) q9 {0 q+ M
The “Bass Warmth” control allows to select the frequency range7 R" @8 o) Z. l y- h* n% M
(10...200 Hz) within which the effect is active.5 p* [- O, o3 q2 J
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
. G9 I4 H Y! h Valve amps have a characteristic response, mid-frequency harmonic content7 j, L- [$ {' M+ W, F
is emphasized.' }9 f! `6 a& j
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer. G3 l7 Y7 \2 C" |$ q
The harmonics spectrum of a delicately overloaded valve amplifier is completely2 Z, z- o0 g" j0 B2 s6 x
different from an overloaded transistor stage.9 `0 I9 k- o. i( L, x1 u8 {
The “Gain” control adjusts a gentle overload while the odd-harmonics content' q( S( N4 U& L, e+ h
can be adjusted with the “Clip” control.0 r) O5 E* U2 `7 {) J. V4 F
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24* A# i2 D8 r# k8 ?* N) r0 E" f
dBu FS.
9 T6 d. r5 N6 ~: G" \6 N8 [[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
7 S2 ~0 D3 b* C" O desired channel.
! y$ e2 J6 y( Y" f% l) Z The “VALVE” LED is on when the Valve Dignifier stage is active.
, H2 y( v; n3 f* S0 a, u3 |[9] INSERT INSERT function.
7 z% |# L: M; O* @8 ~ First key pressure: INSERT POST VALVE, the Insert Send is tapped after
5 d% P6 b; a* x. C/ P9 A the valve stage (display: “INS”); the Insert Return is directly fed to the Line
% F' ^/ @7 c; T, m0 t and AES/EBU outputs.& K9 ^; l+ I; C0 k1 g
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
& C4 S1 n, k. T# q# |- m the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
1 s. J6 r) }" w6 C) ? the valve dignifier stage to the Line and AES/EBU outputs.! h- G% n+ K0 Y: g# U+ G( U/ q6 C
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
! e+ F/ _8 {3 B0 H, A stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
4 f3 i w5 s* w* A receives this signal; display: none).0 m: @: [3 ?) h8 u3 u) j0 r
Insert Send and Insert Return are electronically balanced and equipped with3 p3 l0 q+ a3 T6 x# J+ |* h y- f
XLR connectors.
" d K/ S# R E3 p2 ~" D( M! Z[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or( L( t, ?( s( \
ADAT digital interfaces. Each input channel can be switched to one of the
4 {% \, D; F9 m0 w# `% \1 q channels 1...8 of the multichannel interface. If desired, also a mono mix is; o7 M2 F0 d( z! Q, I9 n( D2 F* ?
possible by selecting the same output channel for both input channels. ~5 A9 ^$ b' p7 L* s
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
; q8 G& ^' y; G3 |( Y channel.* R. n# s6 H; q% Y9 Q
Can be operated only if the input gain selector is in Mic position. The
) @& R5 u8 c5 g, i, ^/ i setting remains stored when switching over to a line gain setting. d S( |9 |* ^
[12] Activates the high pass filter on the microphone inputs of the desired channel.( ?9 D! I' h9 y5 _, k
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.1 P; v! e8 S4 f
Can be operated only if the input gain selector is in Mic position. The
$ I- I* s* a$ h+ @ setting remains stored when switching over to a line gain setting.1 O" C5 T/ E1 ?$ H. [7 J; z
[13] Ø Toggle key to activate the phase reverse switch of the desired channel., P& ]. {3 `9 Y1 k+ V
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:7 W" o+ {/ _3 @) A+ [8 N4 i2 v
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with, M: x5 Y& S& A/ R) F0 H4 O8 ^
Noise Shaping (display: “16NS”) can be selected.
0 I2 k0 D$ O# S: V0 }7 U/ `[15] SYNC Selects the synchronization source for the unit. Possible selections are:' `* C6 w3 o: P( u, V% K
INT 48 Internal quartz reference, 48 kHz
+ V! j- ]8 ]- {9 J INT 44 Internal quartz reference, 44.1 kHz6 I% A6 l4 @9 e9 C% o ~/ w+ r4 M
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)& j. H( T m K. k3 v
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)5 G4 m* u, U7 S7 d9 c0 Q
AUTO Selects sources automatically in the sequence AES-WCLK-INT
( s( L" K+ ^$ m9 A; u; c VAR Indication only, active if the external source frequency deviates from 48 or
$ x& x& {2 i$ c8 u' j 44.1 kHz for more than approx. ±3 %.
4 f4 ^8 U9 q, N" s7 ^% O( H- q[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –( v9 J: k" l4 }
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.4 {' w) ~) F7 ^* Z2 K- B
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce8 O/ U1 s; ^# o4 {
the danger of overloading the A/D converter with short signal peaks (if- ?9 Z6 g, d3 r. ?# l
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
3 h- k: L i" _9 i/ e5 `' L) P$ z8 ~ allowing for approx. 6 dB reserve before hard clipping occurs/ n9 s! Z6 n J" k! L6 [
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