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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
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2 M) L* s8 m) S6 B: c7 j英文电子说明书" E* W; j J [/ s
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
, w4 K7 T, K1 w& M default settings. The subsequent settings remain stored in a Flash EPROM
% @& H* {/ Z- \; y3 T4 ?7 I( b after switching the unit off (unit contains no battery).4 J* L1 l1 c* I; z( K/ \ T1 R
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position; B4 u$ v& Q6 ^6 \3 c; B2 @
between microphone and line sensitivity setting ranges.' T4 Y1 D6 F) h3 v( W% S8 j
Mic: Range –40...+20 dBu
% c! ]4 N9 ^- v0 }7 D Line: Range +14 dBu, +24 dBu" P" M5 Y& [) z5 U0 ^, d7 o, t
[3] Fine Gain Potentiometer for fine input sensitivity setting.
, Z" I8 t. b* }8 y! S Range of additional gain: 0...+15 dB.
. ^$ [, b1 B) ~- j' f0 \% W Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
: y% M5 N( ?/ R% j6 o the dBu value of an analog input signal which causes a full-scale output of- W. H% G1 x# V" a' N6 ~
the A/D converter.% i" B$ X7 m5 R- C7 b2 l
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;, ^) f8 {$ Q) E4 [$ {$ G: ^( {
the peak level is therefore +16 dBu. The “Input dBu FS” rotary! |3 ~% v6 D5 _0 p4 i9 }
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
0 D/ J6 G( z% G+ q) i& c Gain” potentiometer [3] increases the gain by 8 dB." k8 m: L- Y! w
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
" b8 e0 s3 i, _$ \) {& B[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
- f1 N8 ?% q3 l. l( ~ have more body; percussive instruments are less aggressive.
( h# W' x! X1 ?9 r, M9 F3 p The group delay behaviour due to AC coupling of the stages is different in
, r9 U% D" m; d+ D3 A$ O tube amplifiers.
1 c; F- ]' x" ~. B1 Z0 k- P The “Bass Warmth” control allows to select the frequency range! p Z( U$ Y+ K3 Q: J& R$ G
(10...200 Hz) within which the effect is active.
! }4 J e8 Z3 g" j& V[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.' I- ^$ X% z( N- `4 O
Valve amps have a characteristic response, mid-frequency harmonic content/ M2 f' A3 R4 j
is emphasized.
) N1 u5 A, @" n. [1 n[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.2 x$ G$ N: \: Q: _7 I
The harmonics spectrum of a delicately overloaded valve amplifier is completely
9 g7 d+ O0 i6 ] different from an overloaded transistor stage.
( k2 f1 v) Z. K# E" V The “Gain” control adjusts a gentle overload while the odd-harmonics content
+ o2 m3 A) ]" C; j5 C, X2 x3 q5 l can be adjusted with the “Clip” control.
6 B. P6 v) h: ?5 n7 @9 @# b" d[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
; r6 y! E) E3 o% U( V" h9 Q/ } dBu FS.3 Y; W$ c1 {8 ^: u
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
& g3 Y5 F$ Y7 T" F, B6 x9 I! U desired channel.
& v, d5 Y; B2 r( }& ^5 n! q The “VALVE” LED is on when the Valve Dignifier stage is active.
* x5 a% R9 n# Q3 n[9] INSERT INSERT function.+ i+ G0 S! j9 j1 i$ Q" G& @
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
. h1 a& k3 C4 u& l0 x, f the valve stage (display: “INS”); the Insert Return is directly fed to the Line
4 X7 G, c) q. K( K5 ` x: u and AES/EBU outputs.
9 N0 g9 `/ D9 l: W- @! Z Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
- o# i' w. r" p; h1 j- j( W5 o1 \( o the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
* M3 C) H% E& ]6 | the valve dignifier stage to the Line and AES/EBU outputs.; S# T+ X- U& {# s9 c& G% ~
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier5 ^; _( T8 K5 p6 x7 ]1 }+ U
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
( Y C6 a6 V6 v/ ~2 p; _4 ^- g receives this signal; display: none).
: N* A7 A% z, g @: Y8 _+ x" ^1 P) w Insert Send and Insert Return are electronically balanced and equipped with, J S* G- ]( }. F! m( R0 J ^) x
XLR connectors.
7 c: B* w( R! g$ D2 ]9 L" U2 M[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
2 l# d' {; v' O ADAT digital interfaces. Each input channel can be switched to one of the( a* h% A1 y e+ S1 c" I
channels 1...8 of the multichannel interface. If desired, also a mono mix is+ B8 ~& O- [# a) l
possible by selecting the same output channel for both input channels.+ z! n: L: @* o( a7 `# u4 n
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone1 ?; a j, d1 W2 |+ U: ]8 I* T4 }
channel.
6 m) r5 k0 u/ a3 w# a* y: Y$ @ Can be operated only if the input gain selector is in Mic position. The
* o/ J9 \* _* ?- s/ v! _ setting remains stored when switching over to a line gain setting.
- S4 Q% ^6 t4 Q. ]- I4 ?) \[12] Activates the high pass filter on the microphone inputs of the desired channel.
8 l- r j0 z; N3 ~6 E5 ^( j Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.+ ?1 R: s ?' D7 c
Can be operated only if the input gain selector is in Mic position. The$ f/ ^6 Z$ X8 E+ O/ p
setting remains stored when switching over to a line gain setting.
9 m, Z+ y' D! Q/ a' X5 I5 m[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
! ~6 u4 n; y* k/ x% e0 `# K9 B[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:- J6 n! I% q* {8 W3 a
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with" t% W: O2 ^1 }& T1 v
Noise Shaping (display: “16NS”) can be selected. Q# u2 p' d) g' ?. a8 d0 ~
[15] SYNC Selects the synchronization source for the unit. Possible selections are:# W) _! u+ [$ _/ t
INT 48 Internal quartz reference, 48 kHz+ N3 L# ^' M4 _1 Z. Q. r; `
INT 44 Internal quartz reference, 44.1 kHz
9 Y; `' [% w+ X1 x WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
6 h8 s! L% f- w/ U e AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)' F. Q/ L+ j) J; i
AUTO Selects sources automatically in the sequence AES-WCLK-INT9 U0 Q- Q5 x/ q' F' f. q3 d
VAR Indication only, active if the external source frequency deviates from 48 or
# J! b/ A; j, n( E6 r6 W 44.1 kHz for more than approx. ±3 %.
0 M' ?# y" ]4 Z4 G7 J7 P[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –+ n [) a" M8 W
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
- C8 ?# g6 p+ U5 _; J" l[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
0 K1 d. i. q' } r! |9 K the danger of overloading the A/D converter with short signal peaks (if# ^ e/ H. n. a# X4 p# Y5 ]
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,* x: X/ b2 |! S. W; R
allowing for approx. 6 dB reserve before hard clipping occurs
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