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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/ [8 x% [+ c. X' r- X$ w# @- r0 s
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
0 G8 k- z/ X2 a* j default settings. The subsequent settings remain stored in a Flash EPROM
% E. @/ A1 `* r7 d" ?* @ after switching the unit off (unit contains no battery).
/ ^, o$ J) }6 s7 R7 }1 T. ~1 x[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
4 W. J+ X! i6 y J; M between microphone and line sensitivity setting ranges.
! o$ j4 A( k8 s' e Mic: Range –40...+20 dBu
. [6 }7 r9 s5 q) J1 s9 W! a/ e7 v Line: Range +14 dBu, +24 dBu
9 t) a, S3 c. _* E3 Y[3] Fine Gain Potentiometer for fine input sensitivity setting.
/ f2 h _8 x# ^, O# g Range of additional gain: 0...+15 dB.
; g/ F1 Y+ r. L Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents( q9 w) a9 ^+ w4 _% L/ L+ z8 b
the dBu value of an analog input signal which causes a full-scale output of! z h5 E% K& e% \/ v
the A/D converter.
8 O5 C; w8 W% j) v& \- X0 | Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
7 e# L% G0 @( q: v2 n8 E- U% }5 { the peak level is therefore +16 dBu. The “Input dBu FS” rotary
' }4 y1 r' f2 M, a* O) e switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine; T4 C% |% R* b6 ^& N& N2 T. A
Gain” potentiometer [3] increases the gain by 8 dB.
( h% K" k, f+ k1 b9 v! U1 e( I[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
3 @# L/ O! Z0 K! B* ?- K[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
" H% p: q6 t6 P7 s, H* ?) M have more body; percussive instruments are less aggressive.. o& T. E2 D% `' f9 J0 i( ^
The group delay behaviour due to AC coupling of the stages is different in
6 f; ]/ x% w( s7 f tube amplifiers.$ E. @* Z$ w6 M1 Y; m8 R v
The “Bass Warmth” control allows to select the frequency range8 r' V% W$ P$ ~
(10...200 Hz) within which the effect is active.
. k+ J& b) z- O6 R( F" `4 P[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.! n/ D3 T, Y* n' p: @
Valve amps have a characteristic response, mid-frequency harmonic content
9 Z! f: l0 L9 h! X+ L' I! U is emphasized.: W7 x2 d& e* T0 e
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.- `) n, D9 `" {
The harmonics spectrum of a delicately overloaded valve amplifier is completely1 v" o- u8 E" X6 T4 o
different from an overloaded transistor stage.! j: A! L! B! p; p
The “Gain” control adjusts a gentle overload while the odd-harmonics content+ V3 `" v- a T9 ]
can be adjusted with the “Clip” control.
3 X7 e m2 B9 I9 u9 O[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
. ]6 P, {' N; \3 j dBu FS.8 S4 z, `: {. _' X/ O
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
& T& ~7 `7 H: b% }; P2 D desired channel.
5 {% ~% e! t, Z F5 S0 Y1 P ^ The “VALVE” LED is on when the Valve Dignifier stage is active.
: d/ W4 j; Y N9 [[9] INSERT INSERT function.; }8 T( X6 C* f1 P2 D% O( m
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
7 ?7 m# R- \( |% Z" R the valve stage (display: “INS”); the Insert Return is directly fed to the Line/ |; `6 V# \0 i2 B) E+ M P I
and AES/EBU outputs.
8 X: q0 C* P& j( { Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
* O, O% M, p3 X7 p the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
. d6 L4 ^" R$ k4 f1 y" C+ D/ W the valve dignifier stage to the Line and AES/EBU outputs., ]: M( Z8 w6 o% F+ y9 X/ M
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
5 f8 T( ^2 J5 R; W stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
4 Y8 E! M' u- z receives this signal; display: none).
. l9 c0 A" [ {, S1 S) v Insert Send and Insert Return are electronically balanced and equipped with
( d( U& U( y# c4 M XLR connectors." y2 Q$ B. ]6 w; ^7 Q
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or8 J: b( H8 k o- A. N3 B; w, {
ADAT digital interfaces. Each input channel can be switched to one of the0 e' M8 S4 g: [; E/ p
channels 1...8 of the multichannel interface. If desired, also a mono mix is/ u0 T& L/ D6 Y, Q: S) E
possible by selecting the same output channel for both input channels.* w( \$ z9 X. S# F
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
& H+ O/ r& X. ~# { channel.
" J2 d3 O1 M0 E5 c* a Can be operated only if the input gain selector is in Mic position. The
6 t" ]) w( |) | setting remains stored when switching over to a line gain setting.
' L+ Y( e5 G: w# z! h$ H[12] Activates the high pass filter on the microphone inputs of the desired channel.
) K( y! K7 C. w# Q! s9 ^* ` Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
2 r' b3 A4 e, B1 i3 h Can be operated only if the input gain selector is in Mic position. The+ R ~6 V% M8 }& t: A4 k) R4 T: W
setting remains stored when switching over to a line gain setting.
) O; ^' V) p0 y/ B: ?2 F% L# ^[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
2 t% s5 |0 d' {+ Q/ j# X[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:. y# I) g' _1 `9 }1 I
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with- \) ]* f+ v) u
Noise Shaping (display: “16NS”) can be selected.
/ o J, s1 R7 V W[15] SYNC Selects the synchronization source for the unit. Possible selections are:4 F4 W7 w9 {6 [
INT 48 Internal quartz reference, 48 kHz
9 h; }' X8 ^) W6 e! } INT 44 Internal quartz reference, 44.1 kHz) ?" @* n" [6 _5 s
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized), G d) _, r% L" E, c
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
0 ^5 k8 ^4 y; ^% X: o8 ~ AUTO Selects sources automatically in the sequence AES-WCLK-INT
2 ]' R5 v* e8 T. q VAR Indication only, active if the external source frequency deviates from 48 or3 D9 Q( t& i$ J6 X
44.1 kHz for more than approx. ±3 %.
+ @2 h+ N2 @% Y/ O" q# `: A% ^! `[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –5 Y- F6 C8 w- r' J
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.) I7 @& x9 @' v
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce" O" s* O/ o( x7 c
the danger of overloading the A/D converter with short signal peaks (if4 L3 P: Z G* i# _
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,4 b2 P0 H( P8 W) o9 ]
allowing for approx. 6 dB reserve before hard clipping occurs U* E. D2 |9 [# w
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