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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 ) A1 G6 t0 ]2 z! {( [ s4 a
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( I$ _5 a( b) n' ^) \英文电子说明书7 [, Q$ X: A9 l* F
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory! s( a' h E' m- E3 _) b
default settings. The subsequent settings remain stored in a Flash EPROM; H: g' w! n# C; k6 n5 c8 z
after switching the unit off (unit contains no battery).
+ g9 C6 U$ `; }( J* |, v% c3 @[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
6 Z4 C" d( M/ ]1 P between microphone and line sensitivity setting ranges.
9 C. Y8 ?; e( t0 L$ L Mic: Range –40...+20 dBu1 \6 Q2 |& M. ~/ Q8 q/ |, H9 ]
Line: Range +14 dBu, +24 dBu
( Z# E# M6 I4 H3 n* E7 |9 J' r, f[3] Fine Gain Potentiometer for fine input sensitivity setting.
! e1 T7 t% C* V1 Q5 d4 ~" p- a Range of additional gain: 0...+15 dB.
2 h8 P) S/ Q$ D Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents3 T. _% i; a; J/ t
the dBu value of an analog input signal which causes a full-scale output of
) B- ], e/ e4 G+ J0 Y the A/D converter.$ l a3 z8 i' o4 L! J" r
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;/ v0 J) K: U0 N0 N( C- B
the peak level is therefore +16 dBu. The “Input dBu FS” rotary5 ^/ O( `. W6 l: b- m2 t
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine, w, ^- L* k& ^* l9 f* m/ ^5 a2 v
Gain” potentiometer [3] increases the gain by 8 dB.8 l* _- X) o; T
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.3 h1 [( z+ x8 X; u/ Q6 M
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
0 K3 X) _2 F5 y2 i* K5 ` have more body; percussive instruments are less aggressive.+ c6 G2 v5 T' n, |# x( ~( A0 n( J
The group delay behaviour due to AC coupling of the stages is different in
% i5 G/ I4 G2 b! y tube amplifiers.3 O: r4 G$ B" G K: p+ z V
The “Bass Warmth” control allows to select the frequency range) j8 c- V( `* p" a6 Z5 U4 ^/ c# |
(10...200 Hz) within which the effect is active.. j$ I7 O0 k. H3 n) X/ |, N2 e) p6 T
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.; G, l1 I6 s# ?! ^% z' J
Valve amps have a characteristic response, mid-frequency harmonic content- z: g3 N4 E) V" G! k. ^3 s3 h' Y, i
is emphasized.6 r, @' U' ?4 {7 F6 {3 p
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
) o5 g. @+ y. C The harmonics spectrum of a delicately overloaded valve amplifier is completely$ B) u( E: R$ P" d% P
different from an overloaded transistor stage.
8 M+ c1 U6 R+ [2 n The “Gain” control adjusts a gentle overload while the odd-harmonics content
3 ~8 V! h! w: l- k) k |8 q can be adjusted with the “Clip” control.
8 c1 ^0 f- `7 N6 D9 r. D* U1 K[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24% c$ _* `4 t' w8 i D& b; A
dBu FS.
, D2 z# [1 G: H[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the9 E: g( p- R( b$ h+ E" l' | \
desired channel.
- V6 E% L" p. `4 @% J8 P The “VALVE” LED is on when the Valve Dignifier stage is active.
1 H( _1 }% I2 y) C[9] INSERT INSERT function.3 N7 U+ O+ }2 x8 G# ^0 Q! B- u5 k
First key pressure: INSERT POST VALVE, the Insert Send is tapped after8 `4 J6 p9 h% b7 F2 B# s' {
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
; }) J2 C8 f+ u, I and AES/EBU outputs.
. T0 w1 E, j2 w0 t- Q1 {0 A9 |- m Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
, | O( f9 ?- |$ c' y the valve stage (display: “INS” and “PRE”); the Insert Return is fed via g; x; W0 ~( C4 J7 D5 q
the valve dignifier stage to the Line and AES/EBU outputs.
! E3 e% r6 j$ k+ D4 s5 f& } Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
& V% I& K' n6 ^) C stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
1 V0 e! I# s; M! P0 D W9 X receives this signal; display: none).7 @( Y- y7 T U" R
Insert Send and Insert Return are electronically balanced and equipped with& t( B: ~/ R R1 a+ L% w
XLR connectors.1 E5 L. Y; }0 o. E* r
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
2 w3 q3 ~1 h7 O' T. u# w: I ADAT digital interfaces. Each input channel can be switched to one of the
7 c- g J6 b) p: x% D; u, f channels 1...8 of the multichannel interface. If desired, also a mono mix is
c! R# J% [6 F* a* U$ p possible by selecting the same output channel for both input channels.3 E* q1 C' C5 q' B3 w* c
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone" d. }! J4 P2 @2 o0 J
channel.# K+ l% c2 K5 e! Z
Can be operated only if the input gain selector is in Mic position. The
* S0 ]* p) W4 }& o4 x6 r8 Y. |& i setting remains stored when switching over to a line gain setting.
v6 z9 L6 u9 t) r[12] Activates the high pass filter on the microphone inputs of the desired channel.1 o+ S" V: M$ N: U
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
+ [2 ?- Q5 I& u) ~9 X Can be operated only if the input gain selector is in Mic position. The
' G0 a) O. N. R0 V setting remains stored when switching over to a line gain setting.
& p$ C: k$ ?9 w8 _3 b3 u) e[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
8 R1 j) \* p* t6 u[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:1 h) Y5 M" N8 m ?0 `1 b
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with: @# \; R s* a' ?% C3 m, R2 ]7 ]' a
Noise Shaping (display: “16NS”) can be selected.0 {' J! P6 _" a0 L S1 |
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
1 s3 V: S$ l3 T/ V: S INT 48 Internal quartz reference, 48 kHz
1 J) g8 A/ d o4 X6 L3 R- A INT 44 Internal quartz reference, 44.1 kHz
1 P* V( L& z. W. P* ^* w0 a WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized) K+ {6 X8 w- u1 Z& ]3 [4 @( Q
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
8 J5 e$ H% _: y2 Y7 T! d, { AUTO Selects sources automatically in the sequence AES-WCLK-INT
# T6 M8 z6 u9 I4 Z VAR Indication only, active if the external source frequency deviates from 48 or- @7 ]' A% Q1 h% b, A
44.1 kHz for more than approx. ±3 %.
7 ?/ ]' l( d% S( a/ F) ]4 {[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –& P, ^* C" u- n. R: B
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.* L6 u1 l! ]- |# g- I0 O: u
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce9 u. ?; _, d8 t' ? F4 t
the danger of overloading the A/D converter with short signal peaks (if
' `' v+ f5 R3 f- m" f2 i; T3 A active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
, k; D1 s0 Y2 r, Y4 \ allowing for approx. 6 dB reserve before hard clipping occurs9 H4 W* |9 Z* G7 o+ @0 K
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