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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
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0 |0 A, ]! h, M英文电子说明书; P5 z8 k3 y8 ~: g6 Y/ {: V0 Z
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory( u" O$ b$ M" d7 Z
default settings. The subsequent settings remain stored in a Flash EPROM
; X7 u/ m- I$ M1 I) h after switching the unit off (unit contains no battery).
; M9 }( s3 h9 t/ n( ?* G$ l/ @[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
5 Y5 g# g6 H& Q. y/ { between microphone and line sensitivity setting ranges.) |% G! h! _! d' S
Mic: Range –40...+20 dBu9 H2 c- J1 _0 h( p
Line: Range +14 dBu, +24 dBu
0 o4 A7 Z9 T: N0 F8 A: g6 K[3] Fine Gain Potentiometer for fine input sensitivity setting.* t- v4 M- V& _8 k8 B1 n2 d
Range of additional gain: 0...+15 dB.
2 N1 y/ X& o* G, T% D0 @ Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
7 G8 f. A2 m+ k the dBu value of an analog input signal which causes a full-scale output of3 q4 r# A/ U. C
the A/D converter.; F; f- _# y0 @* `
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;. l1 Z, v' ?# p6 p& r: V) p- @
the peak level is therefore +16 dBu. The “Input dBu FS” rotary: g# e/ y" }8 s- g6 ^2 H( |/ ]( S$ f; \
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine2 r H; O/ |) E5 W1 M3 q6 t+ B q
Gain” potentiometer [3] increases the gain by 8 dB.) ]- [- a- X S/ E: A9 X. Y$ {
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
$ x1 _3 Q- v/ g6 \6 N[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
* y* N/ a0 v* U. j0 J5 d have more body; percussive instruments are less aggressive.
) T% c2 E }# A: @* `/ d8 n The group delay behaviour due to AC coupling of the stages is different in
6 ^( J5 y* ?% J6 W, g tube amplifiers.4 Z: j' \8 r5 q% }$ ]6 S- I
The “Bass Warmth” control allows to select the frequency range
- g- d2 E$ J/ Z7 a$ s (10...200 Hz) within which the effect is active.
1 J2 \" a, f2 U+ @8 o I, |[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
- P5 a! W) _, Q' Q( b r Valve amps have a characteristic response, mid-frequency harmonic content( R0 v6 [2 X. Z5 X+ Q7 {2 V
is emphasized.
2 x: H; _" X7 Y5 X7 f9 c; z[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.% W7 u3 M, I9 c5 W( m) v
The harmonics spectrum of a delicately overloaded valve amplifier is completely1 c/ W% ]7 w2 ]% B% Z$ D/ @5 V5 V
different from an overloaded transistor stage.6 {2 K/ c& r4 a" S+ x+ `- a
The “Gain” control adjusts a gentle overload while the odd-harmonics content- l: z4 T: Q: d2 ]9 Z3 L! J
can be adjusted with the “Clip” control.3 A# L+ G# o: N* t; x( B
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
7 D6 a: ~2 n' y) g; } dBu FS.
7 V% C3 ^0 l' r* Q. I[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the# O" `. y; ]3 C4 V1 }
desired channel.
9 ]+ W! b% S* W4 c! T: u The “VALVE” LED is on when the Valve Dignifier stage is active.' k- U: D; G6 h: Q* E7 l$ @! t
[9] INSERT INSERT function." v7 D4 `# c' [) l% Z7 b) i
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
& U2 z' Z; M' q' `4 o# ]! p the valve stage (display: “INS”); the Insert Return is directly fed to the Line
# v+ g9 E2 n* P2 M8 Q/ W and AES/EBU outputs.
) z6 B- n. z6 w Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before8 |, z( L8 { r1 i& V- l
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via }8 D0 D0 ?2 G9 G" c+ D' c) K% A' H
the valve dignifier stage to the Line and AES/EBU outputs.! }4 y/ o* q+ u4 L) q: o
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier2 ?0 ]; O9 a4 I
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
) b7 y" U; u: k: U9 g# Y: m/ J" k receives this signal; display: none).: |' Q, u) f$ ?6 R8 ], c# x
Insert Send and Insert Return are electronically balanced and equipped with/ a9 q0 A: a4 s* Q) h( @; ]
XLR connectors.% U9 \8 k7 A4 R8 R9 W Y3 w/ g) f
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or; Q) W' ]0 ?3 p$ d, N
ADAT digital interfaces. Each input channel can be switched to one of the
" S6 a% \2 n& B. W0 _ channels 1...8 of the multichannel interface. If desired, also a mono mix is+ v" I3 \; S) K% b# k
possible by selecting the same output channel for both input channels.
( X3 ^# Y& b( u+ ]& r[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
) c+ e% Z$ M" m& [- C channel.
8 e2 ?# w! j+ W! W& h, o! I Can be operated only if the input gain selector is in Mic position. The* j( M) n) E9 i5 t
setting remains stored when switching over to a line gain setting.
k, V) K( H' p( v& O[12] Activates the high pass filter on the microphone inputs of the desired channel.
5 x. A" @ H/ _) g2 W1 q: k Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave. `5 W6 F1 Q* j, O$ B, `4 j
Can be operated only if the input gain selector is in Mic position. The( X1 Q, W1 S" k4 B& ^ c
setting remains stored when switching over to a line gain setting.
. X8 H7 j2 j7 v[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
# b+ H& m$ m# A6 p( \- K[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
/ X8 T: P! W% C7 `% d2 y2 m6 R “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with- X' T ?; X+ T. ~! o0 P5 w
Noise Shaping (display: “16NS”) can be selected.
7 T U- Q3 i( q. y[15] SYNC Selects the synchronization source for the unit. Possible selections are: N! A) k# G- J5 W2 H5 `/ l* S! ?
INT 48 Internal quartz reference, 48 kHz
9 d9 ^; u! p R z INT 44 Internal quartz reference, 44.1 kHz$ e# n: S6 ?' Q* \8 Y) V' U
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)& A8 |7 S3 y$ m7 Q
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)7 J: @6 d$ H _) P) _7 l8 n4 t1 t* }
AUTO Selects sources automatically in the sequence AES-WCLK-INT; e, h4 z6 `* ~# v4 K3 i# Q
VAR Indication only, active if the external source frequency deviates from 48 or) Y! {4 F. ^1 \+ U2 Q
44.1 kHz for more than approx. ±3 %./ S% d* N) Y; ?: Y* V
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –6 m6 O, e0 T0 o8 P f/ ~) ^
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
7 _' K4 L6 S8 `7 B8 A. g6 }[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
7 n! Q; Y2 C4 R2 m% `7 w" Q, O the danger of overloading the A/D converter with short signal peaks (if
- \- A0 c" N5 q S( m active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,9 l; O* }* U) w& b( B' d
allowing for approx. 6 dB reserve before hard clipping occurs: l$ p" G" z, c8 O6 [
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