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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 ( y" e; |3 X- o# b' M6 w
+ R1 z, W( y! r/ q英文电子说明书( a5 `# S3 w+ _( [, e
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
5 J! C5 g a( d3 f default settings. The subsequent settings remain stored in a Flash EPROM5 V- v$ b$ @ `- Z. R% ~
after switching the unit off (unit contains no battery).- ~" @% t" d& U, `" D
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
3 E' G0 n" g% Q' ?1 k. S/ S4 s between microphone and line sensitivity setting ranges.; c# s5 T, U @2 y9 ^6 p _
Mic: Range –40...+20 dBu! R# D( A) M9 M; h: L# x; G
Line: Range +14 dBu, +24 dBu
* D* Z* P4 d7 q" _+ s[3] Fine Gain Potentiometer for fine input sensitivity setting.1 n) R+ X+ Q$ H- q
Range of additional gain: 0...+15 dB.
' }" y+ V. P' \ Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents9 v$ s. b5 o- F
the dBu value of an analog input signal which causes a full-scale output of0 H1 r: ~2 M# v6 ?& s2 H
the A/D converter.
& S2 [5 W3 N1 p( o9 \ Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;% s$ L" v$ m8 G! p7 [; o
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
2 c$ }: R2 f+ O+ z9 X. d. L switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine% l* A6 x, c7 D; `
Gain” potentiometer [3] increases the gain by 8 dB.: R. k! l! u' R" b, n* V% \
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.$ k1 r5 u+ g" \6 H
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals8 d$ u, i5 j4 B. |9 c, B# K0 r, @
have more body; percussive instruments are less aggressive.
0 R: l3 |/ }! V) w: s( ^% f* ` The group delay behaviour due to AC coupling of the stages is different in
p. T& R: I9 c% r$ E( E tube amplifiers.# s/ f6 u- o. O: Z5 {( s
The “Bass Warmth” control allows to select the frequency range& t; V8 s, T! P" E
(10...200 Hz) within which the effect is active.
: n3 a# r% ~$ k! z1 {& B8 y[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
?: m5 R# x( @ Q4 a( d, B g& P Valve amps have a characteristic response, mid-frequency harmonic content; H7 L" e N) [* @
is emphasized.
# O T$ W3 ~! k: U8 O[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
( m* U, _7 y& u The harmonics spectrum of a delicately overloaded valve amplifier is completely4 P, B0 v4 i9 C- ?% N
different from an overloaded transistor stage.
+ T9 d% Y+ ]9 ]; u The “Gain” control adjusts a gentle overload while the odd-harmonics content
1 _: A7 D; s7 ^8 f2 J. J9 E can be adjusted with the “Clip” control.7 N- L) V2 c) X* z8 q7 b
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...248 ?1 ]% {7 q% S! R
dBu FS.
2 w4 \" }, P& g" q- u2 D1 ^- @[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
4 Y5 t6 K7 K& V5 J" R/ I3 e desired channel.
9 m) K- W( O, c The “VALVE” LED is on when the Valve Dignifier stage is active.* F- E. L0 m( A6 C! v+ p8 F! R0 o
[9] INSERT INSERT function.
" n# m/ e% \* a4 e1 [ First key pressure: INSERT POST VALVE, the Insert Send is tapped after' R% v$ y; } D& \/ i
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
; n( q* @9 G; G% c4 b# C and AES/EBU outputs.
& e0 C. X6 W" u/ ]' ` Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
# W# M1 U4 s0 ~* Z% e7 i the valve stage (display: “INS” and “PRE”); the Insert Return is fed via; V% v. g. x' ^: r4 a, k3 K5 S6 w
the valve dignifier stage to the Line and AES/EBU outputs.. @- E( l+ G4 E1 @# M
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier$ Z7 x- _: j% Y6 v7 m
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
3 O! }* {2 h+ J4 N receives this signal; display: none).
3 q" z$ c. n% F T% B Insert Send and Insert Return are electronically balanced and equipped with
/ F& l% c. }3 n. @' v* D XLR connectors.
$ r( ^5 h# d+ r/ k ][10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or% z4 _) p' O, y, ~- O" q. T5 C
ADAT digital interfaces. Each input channel can be switched to one of the
# |* H: u- v: l6 { s channels 1...8 of the multichannel interface. If desired, also a mono mix is
5 ?1 T5 E8 s9 z: d; l6 M) A# w possible by selecting the same output channel for both input channels.
) }8 r5 h3 @, ^" `7 L$ \& n[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone7 Y. C% \* |& `8 C7 y
channel.
# U8 u( Z+ M. V Can be operated only if the input gain selector is in Mic position. The# _) e. K/ J" T+ R
setting remains stored when switching over to a line gain setting.
& b0 F, {8 J0 p. k2 N9 j# l[12] Activates the high pass filter on the microphone inputs of the desired channel.
, P1 S1 z( \ ?3 n. z$ W# P3 X, Q3 I Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
, Z0 I' {# q3 G+ p% J. ] Can be operated only if the input gain selector is in Mic position. The
" Z! u1 n- }0 Y) Y! y3 R( P setting remains stored when switching over to a line gain setting.9 [- N. h- \+ L) a4 A' J% t, B5 w. ?
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
( K/ p# f5 L. q( K" ]0 s[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
4 J6 w# V2 O/ t1 ?/ R+ o “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with1 A; G7 x K- O; ^8 S: s* b
Noise Shaping (display: “16NS”) can be selected.) ]2 I4 t5 R' f" k& s8 o
[15] SYNC Selects the synchronization source for the unit. Possible selections are:& t& F7 G# V* K. R$ J
INT 48 Internal quartz reference, 48 kHz
2 M3 N" N+ ]3 M+ z INT 44 Internal quartz reference, 44.1 kHz
4 a, \# H" N, [! i) |7 _1 K WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized) J0 {7 p. N' U, J8 u/ u8 l
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
& D# J; I7 ~4 x; n AUTO Selects sources automatically in the sequence AES-WCLK-INT
% r- n* \* X& r: D: r VAR Indication only, active if the external source frequency deviates from 48 or( J* R) o0 b& r2 m+ V2 l2 e& o
44.1 kHz for more than approx. ±3 %.5 S, E/ N/ V/ B( D B* l6 g
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
7 s; A B: y" m4 M either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.: M2 W% `/ s( m/ l
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
: @6 n9 |0 o4 ?* @0 n: P the danger of overloading the A/D converter with short signal peaks (if2 V) q& V0 Y& T9 ]) i
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,8 O$ M0 x2 s6 U4 O
allowing for approx. 6 dB reserve before hard clipping occurs
; p9 z r4 o! O* p2 I ) ?5 H a7 Q5 U7 M; L( Y
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