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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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% v9 P; H4 @) z' n U英文电子说明书" m+ ]5 ]8 f& v) F" S: M
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory+ L. k4 V- h# w5 X [8 F
default settings. The subsequent settings remain stored in a Flash EPROM
2 C; f/ l/ n4 \( r% v1 m j after switching the unit off (unit contains no battery).
9 |* X M4 x2 [1 N[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
% K; L$ V; |: A y# f* a between microphone and line sensitivity setting ranges.. M) w( g" w; Y y* C, o6 U/ v
Mic: Range –40...+20 dBu
5 L- n9 m# ~. t. ^: y Line: Range +14 dBu, +24 dBu* @) D$ D* Y1 V- Z# p% L# F' B
[3] Fine Gain Potentiometer for fine input sensitivity setting.# T2 {* k( ?/ B0 r/ L! }
Range of additional gain: 0...+15 dB.
) |& B$ v$ A; } { Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents* g/ D9 ^2 \$ U! O: y
the dBu value of an analog input signal which causes a full-scale output of
* T4 b3 i9 a) d) v2 z6 y the A/D converter.3 ^9 B: K* \1 T2 k9 B
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
2 M# s. S- t, w. y the peak level is therefore +16 dBu. The “Input dBu FS” rotary3 r$ ?- B* H% W7 }; A
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
# Z1 r8 ~! _& l5 l3 Q/ ]2 g Gain” potentiometer [3] increases the gain by 8 dB.; E, W( ]$ r6 j( F- ^
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.- c0 O' ^( Q* r5 y$ U/ U
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
: h8 Y) v" l, E6 | have more body; percussive instruments are less aggressive.* E/ H3 ^5 C7 u( o$ X
The group delay behaviour due to AC coupling of the stages is different in
: C: @& i9 U) \6 B6 r& B tube amplifiers.
{0 ?" W% X: J. |# T6 f& i The “Bass Warmth” control allows to select the frequency range. [' X5 s6 t) O% L1 L& }9 N
(10...200 Hz) within which the effect is active.2 ]% w. k$ t8 j0 |$ W7 f, R- P
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
, j' }+ @( ~( k: A- G8 f5 | Valve amps have a characteristic response, mid-frequency harmonic content
: ~) f: h m g2 T6 l1 v is emphasized.
- m8 G1 x% i- Q k3 u[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.2 C' [% R4 o) q. `: J. O5 W9 x
The harmonics spectrum of a delicately overloaded valve amplifier is completely
& w8 Y/ t _& W2 U0 B* r4 R8 s- v different from an overloaded transistor stage.% K# V' V; w- d8 K% I) j
The “Gain” control adjusts a gentle overload while the odd-harmonics content
7 a/ O) x: c( `! p% M6 t( _ can be adjusted with the “Clip” control.2 `! U0 f f: c9 O! x! k
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
( Y& {% p# `6 ~- u, l, z0 z dBu FS.
8 _- E3 t! P; g1 ^. g[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
: w( V7 s& `5 b( M6 V @ desired channel.
. _% w, N& E+ x. q The “VALVE” LED is on when the Valve Dignifier stage is active.
2 E2 B8 ?4 R+ q6 r[9] INSERT INSERT function.
! z" v, J. `1 |/ f' s First key pressure: INSERT POST VALVE, the Insert Send is tapped after
. z- T y$ T5 B$ H the valve stage (display: “INS”); the Insert Return is directly fed to the Line
( b. o9 q: E2 `8 v* b+ a: L3 F+ n and AES/EBU outputs.
, a! E! N, D8 e, i Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
( p- W9 y" w3 Q/ N the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
# \& V* L% O0 h$ F l* y/ i the valve dignifier stage to the Line and AES/EBU outputs./ n# L! z7 O' C# B" z7 [: L, R% S" q
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
+ W4 P: g) I0 A& f6 d7 z7 g( F4 T( ` stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
' t, d# U( S: W( w5 z receives this signal; display: none).! S7 k$ d& L3 b; u; u
Insert Send and Insert Return are electronically balanced and equipped with7 r; c: G* d1 G, u8 n3 d7 n
XLR connectors.7 e% w: T+ M; y% y( O9 C( Z; A
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or& t/ U3 V3 b+ L# g% Q m# ^
ADAT digital interfaces. Each input channel can be switched to one of the0 s4 ^. t# n/ I2 X% @
channels 1...8 of the multichannel interface. If desired, also a mono mix is. t2 i& f0 j1 ^
possible by selecting the same output channel for both input channels.. n0 f5 z$ L" G
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone6 p) \& l: ~! y2 o
channel.
. o8 p, s) y- F+ o Can be operated only if the input gain selector is in Mic position. The: ~- o' O# N5 g( j: M; Y# s) |3 `/ Q! l
setting remains stored when switching over to a line gain setting.
$ ] W3 a1 P$ @0 P[12] Activates the high pass filter on the microphone inputs of the desired channel.! U; j1 Q$ m1 ?8 I; A1 m# e
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
5 g5 y7 A3 q' H8 K+ h Can be operated only if the input gain selector is in Mic position. The2 [$ [9 Q+ M" h! T
setting remains stored when switching over to a line gain setting.1 O0 b7 p. A+ `
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.4 V$ T& A8 A) |* `* H
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
% A2 b7 K. K/ D$ q “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with& k# ^# O& ~& X$ W
Noise Shaping (display: “16NS”) can be selected.
" E# z, X9 ?$ J( g[15] SYNC Selects the synchronization source for the unit. Possible selections are:6 L8 a! U0 S# ?" i
INT 48 Internal quartz reference, 48 kHz
( ^! O1 L% T2 J h0 A. [: }; R INT 44 Internal quartz reference, 44.1 kHz# i3 u4 ]& Q. \0 Y u6 ]- b6 u, d
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
/ O, @+ e$ {! W AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
" _1 [; n% u4 Z8 S) h; G3 P AUTO Selects sources automatically in the sequence AES-WCLK-INT
* \! G t8 q3 S/ |1 k. s& X VAR Indication only, active if the external source frequency deviates from 48 or
+ d! X0 x4 O" o! G) d8 i+ I 44.1 kHz for more than approx. ±3 %.3 Q) K: B3 V: \' o7 D8 r6 S
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –* `$ R Z( J2 d5 Z: f/ V
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.$ ~% P+ ?" A! I( G' Z3 J
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce6 j6 b- M) w8 c2 B: k, j( ^
the danger of overloading the A/D converter with short signal peaks (if6 w9 o$ { M) }( R. Q, G
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
+ u, q5 Q5 P# w9 g* S6 L allowing for approx. 6 dB reserve before hard clipping occurs
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