|
|

楼主 |
发表于 2012-5-21 23:23:18
|
显示全部楼层
本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 " i8 a; Y m) W- C, l" d1 B
! S0 O! [$ e1 j4 A
! e+ l/ L6 a. h1 h' |
英文电子说明书
$ B' ]% u% y7 U1 E" X) @[1] POWER Switches the unit on or off. The unit is ready to operate with the factory$ @7 s' _9 C# O# G7 m4 N
default settings. The subsequent settings remain stored in a Flash EPROM
; k# d5 v- N$ }" W4 X* y after switching the unit off (unit contains no battery).; d; Z* o5 K: N+ _1 t* M
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
7 |4 O4 {" m; \1 Z0 d9 C between microphone and line sensitivity setting ranges.
' k+ p, F \( C% j9 s$ g' m0 z, W Mic: Range –40...+20 dBu
7 ]* I0 v8 `' ]* q# _2 V Line: Range +14 dBu, +24 dBu
! {, u6 e# V6 R" F6 ~% ?[3] Fine Gain Potentiometer for fine input sensitivity setting.
6 J' u6 t+ }3 {; L- |0 n Range of additional gain: 0...+15 dB.
& U5 |' _# }+ x& y8 K Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
1 y7 p% w* C( K0 | the dBu value of an analog input signal which causes a full-scale output of' {) N* b' _: F0 O7 T
the A/D converter.! U/ V! o1 j+ K5 S' Z9 ~ Y
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
+ p) Y. n( C* B8 k+ h" q the peak level is therefore +16 dBu. The “Input dBu FS” rotary J) q% e( i6 k6 N) Q0 Y
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
3 A. m ]5 N8 N8 ` Gain” potentiometer [3] increases the gain by 8 dB.2 I- q0 \; A. F8 l# ~2 r! B
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.0 g+ u# D3 I; w6 R% r
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals" h" r% k8 v; n/ I# e I
have more body; percussive instruments are less aggressive.9 Y8 P$ K1 ^3 M; N% e
The group delay behaviour due to AC coupling of the stages is different in
% V4 j1 y5 F& S9 R# m tube amplifiers. e o; h# n* O9 p2 I A, K
The “Bass Warmth” control allows to select the frequency range
* l+ Y4 p% [5 g0 t (10...200 Hz) within which the effect is active., _1 q8 M( z! o
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
) Z! R% z* r% @* z/ _4 a O7 b Valve amps have a characteristic response, mid-frequency harmonic content
, w0 A- J' A& s# } is emphasized.
- D7 ?2 G s7 C8 s" j# X. d% }[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
0 W% a. v" y; u: ]$ ]3 D) j L! b2 p The harmonics spectrum of a delicately overloaded valve amplifier is completely
* q8 y1 g3 h+ {3 W different from an overloaded transistor stage.
& `( }9 X1 A4 [ The “Gain” control adjusts a gentle overload while the odd-harmonics content
+ r& o% ^% W5 S: [3 z, O9 H can be adjusted with the “Clip” control., s% p% A% }% L) p5 f5 f3 [
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...247 e) |, u' [9 O7 X
dBu FS.
( Z) z% H, H. g: A: o; b" G[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
! s" x ]( x# ]9 t, s desired channel.
7 U5 s) q0 A! R$ ~# x/ [ The “VALVE” LED is on when the Valve Dignifier stage is active.
/ I0 C0 z% }. F. p8 v0 b, k# I4 i+ W[9] INSERT INSERT function.$ j: Q% h/ A( b0 A: P" H3 `
First key pressure: INSERT POST VALVE, the Insert Send is tapped after6 J% {% T. d! Q
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
5 r, N0 c9 v6 C: ] and AES/EBU outputs.
2 X }3 C, A# ] Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before. v" n6 m0 p- N9 N6 y0 e% _% F
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
. v5 |' ~, S7 C the valve dignifier stage to the Line and AES/EBU outputs.. ]. j5 ]- }6 \$ K
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier# D% C6 V4 |, Y s$ f7 O0 n
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output7 n3 ?, F9 q: K g, l7 [
receives this signal; display: none).
: t1 _2 p) [! x4 `3 l: ? Insert Send and Insert Return are electronically balanced and equipped with
7 w! t4 B. I0 H2 ^5 t5 \ XLR connectors.
2 e+ ]9 V' e: X( o% T; S[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or) J6 ~; X; S5 O2 X+ T+ A
ADAT digital interfaces. Each input channel can be switched to one of the+ x4 K/ }* I+ z( Q+ N' r$ |6 P% \
channels 1...8 of the multichannel interface. If desired, also a mono mix is% K( l( x& L7 e% y7 ?7 o) r7 P. z2 g
possible by selecting the same output channel for both input channels.$ Y+ U Q- i, H0 V! ]/ C- r
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone9 S& s( a& _1 q
channel.. z9 {3 B# G. A) g: S3 F5 N
Can be operated only if the input gain selector is in Mic position. The
5 ~9 u7 f' O2 e Q: b setting remains stored when switching over to a line gain setting.. K9 |' c0 C2 F) E
[12] Activates the high pass filter on the microphone inputs of the desired channel.. w, h0 ]; q. R/ _
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
2 Z4 N+ g0 E8 }, B Can be operated only if the input gain selector is in Mic position. The b$ T, i% j! O8 q+ A5 b
setting remains stored when switching over to a line gain setting.
: ?- C( O0 e! R6 s& r& a; B" d* c' U8 B2 }[13] Ø Toggle key to activate the phase reverse switch of the desired channel.. k% O; f0 j) {- ^, u r9 T B
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
" f5 a2 {! c; z! m" K% B “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with f5 o( Y8 T5 e7 s5 f* l
Noise Shaping (display: “16NS”) can be selected.
3 f5 {0 ?9 D8 J* ~: A[15] SYNC Selects the synchronization source for the unit. Possible selections are:8 R. V& z" j P1 d3 O$ A
INT 48 Internal quartz reference, 48 kHz4 ~& X3 G# r/ l) r! R
INT 44 Internal quartz reference, 44.1 kHz) d6 i- U- ]* o2 t2 M) s/ I
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)% o% A8 m' n$ p. {" Q/ W! y
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)- N) N) |2 r. q5 G: p' N1 L+ u
AUTO Selects sources automatically in the sequence AES-WCLK-INT
. I9 o' h* O2 ?* d, j$ ^ VAR Indication only, active if the external source frequency deviates from 48 or
$ u1 J9 ], b1 x2 T2 |- j 44.1 kHz for more than approx. ±3 %.
) k; h$ h" d$ |. a+ O7 S[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
9 ~ q9 t5 }, ~; X# l either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.1 |9 w8 ~' K7 `
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce) N% ^2 `% q. a) z6 U/ `
the danger of overloading the A/D converter with short signal peaks (if7 k9 {3 y0 l; ?# ~
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
( T5 O5 U" [/ m7 v4 A" R2 h( Y9 u" l allowing for approx. 6 dB reserve before hard clipping occurs& F% B4 Q( [$ W* l2 M% S0 S% o, P
4 {- e( u. G5 t, |" x$ l9 }
i3 h4 _# U$ L6 l& P I* c |
|