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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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英文电子说明书& b( z7 J' p' t! r$ }
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
' b/ d* R: L$ Z, v: l9 v default settings. The subsequent settings remain stored in a Flash EPROM
9 i) g; y5 k4 V$ Y8 D" y after switching the unit off (unit contains no battery).; c' k7 H8 y' K4 F, H
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
! Z. u/ u9 k" Q8 i between microphone and line sensitivity setting ranges.) ~3 D$ G; `; f n
Mic: Range –40...+20 dBu
2 o. S" X& }% v+ j, ?) f& }& |2 v Line: Range +14 dBu, +24 dBu# r9 z- U+ f, V- {) V
[3] Fine Gain Potentiometer for fine input sensitivity setting.% l+ y$ \7 a) u; @
Range of additional gain: 0...+15 dB.
+ W8 n8 q) ~, J8 Y( |3 a Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
4 K: U# H( \4 @( h the dBu value of an analog input signal which causes a full-scale output of/ U3 _8 ` |' k# s T
the A/D converter.
/ Q5 G3 T2 _2 i! @5 ?) {0 l; z Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
" H# a' ^( z- ?2 P5 q1 P0 }, F the peak level is therefore +16 dBu. The “Input dBu FS” rotary
2 w; R L+ a" ]7 z switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
9 c" n. [" C7 I) k Gain” potentiometer [3] increases the gain by 8 dB.$ c; |& g: D: I, i/ n
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.5 l; Q) O" d& {. ^
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
% L. m, K/ n0 ]6 Z$ Y+ V have more body; percussive instruments are less aggressive.
2 c& r; j. h. X8 j2 j The group delay behaviour due to AC coupling of the stages is different in' B# Z/ K; I# f2 I8 B7 W
tube amplifiers.& G; y3 Z: @* M
The “Bass Warmth” control allows to select the frequency range: {$ u) ?3 {4 ^; ]1 e& q5 K
(10...200 Hz) within which the effect is active.0 v* K1 U2 n+ `6 |: D2 z O
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
( X; @; u- S) [, z Valve amps have a characteristic response, mid-frequency harmonic content
; D) C- W' O' _) z is emphasized.$ |6 ^. n, g# t0 Y. v1 S
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
6 L9 G2 b k Q The harmonics spectrum of a delicately overloaded valve amplifier is completely
" b7 p [% `+ D4 o& A different from an overloaded transistor stage.
2 y9 l' B/ E* J; [- B# r: { The “Gain” control adjusts a gentle overload while the odd-harmonics content
' M) L; i0 F0 }: c7 i# o can be adjusted with the “Clip” control.
1 |6 F7 y/ D4 d. l. a& ^* v[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24: L) B! x5 L) K; Y8 x" o
dBu FS.
" e1 Z. _- u# \3 G" u* L7 p7 b[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
) m2 ]; k+ i3 k( ^2 ? desired channel." a7 m' e8 ]% H1 H; I
The “VALVE” LED is on when the Valve Dignifier stage is active.+ o: L0 V, \# g- t
[9] INSERT INSERT function.
% {" |0 ^7 {2 }- R) \4 m6 a4 G First key pressure: INSERT POST VALVE, the Insert Send is tapped after0 s6 Q, g+ m- Z; @( J
the valve stage (display: “INS”); the Insert Return is directly fed to the Line( |! u5 ~/ J8 ?6 v4 U5 {
and AES/EBU outputs.* I) M, @) t5 ?# \/ u3 \% R
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
& W! N5 i2 Z+ }" E the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
7 t: ]6 V, E' Q2 R( z, T the valve dignifier stage to the Line and AES/EBU outputs.3 R6 l" f2 q0 J" ~) ^3 [( h$ }# ~
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
v8 @8 T# |) G/ A$ Q7 c stage (if active) to the Line and AES/EBU outputs (also the Insert Send output1 M0 H; X& \; U$ z- Z& W, E
receives this signal; display: none).' {' E5 o* V; v& l
Insert Send and Insert Return are electronically balanced and equipped with
. S3 W: R) E$ k2 ?' O" Y0 x6 X XLR connectors.) N P, s2 c! `2 [) ~9 s S
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or& b$ Y6 d% e+ G" ^
ADAT digital interfaces. Each input channel can be switched to one of the
7 ?, [5 J$ ~$ }0 E5 |% B' L channels 1...8 of the multichannel interface. If desired, also a mono mix is, Y5 m/ d8 w" S8 I& @' ^* W4 i5 L+ p
possible by selecting the same output channel for both input channels." g9 b' r4 m1 Z9 m. u3 d8 K
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
8 s1 {0 c2 Z' K9 }7 L3 D channel.
8 ]0 V# A' N4 h1 H2 {* ^ Can be operated only if the input gain selector is in Mic position. The
9 J$ ^$ M- y; x setting remains stored when switching over to a line gain setting.
8 H. c* i5 l9 }, L' M u9 M9 H* P. D[12] Activates the high pass filter on the microphone inputs of the desired channel.
8 h) N; n i2 B Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.; K$ }* w5 u8 N5 y' K/ K
Can be operated only if the input gain selector is in Mic position. The `6 h; F% r% E4 D; @' p0 ]9 H
setting remains stored when switching over to a line gain setting.7 Q: f, Q) T& F
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.: `, v h* s1 m4 o9 s1 d
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:2 Q, g& C" m, u8 v' x' N
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
8 Q# C! O% u0 _% A" s Noise Shaping (display: “16NS”) can be selected.' U# y) J$ G& Z- B
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
) @* ?8 C" N8 a: e. k1 S; F INT 48 Internal quartz reference, 48 kHz
2 Z' v Z0 l- B6 @ R% [9 L% ~* P INT 44 Internal quartz reference, 44.1 kHz
7 H% F! e6 ~ s* _ WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
0 N* t9 _5 |$ y# W AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)$ y, q6 U2 J7 s7 n
AUTO Selects sources automatically in the sequence AES-WCLK-INT9 f" R' l: V: ~
VAR Indication only, active if the external source frequency deviates from 48 or- {- t& C0 {& n0 o2 C7 I0 H8 h, O
44.1 kHz for more than approx. ±3 %.
6 o% o; |% d" c# C8 p' w( k1 F E[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –* C7 T6 T& P/ |( b2 ~8 `( Y
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.5 w; P: z# Y# H: y
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
5 _5 v* P4 E) u# r the danger of overloading the A/D converter with short signal peaks (if+ b. O; E6 O- s
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale, D0 [6 J% s) m" a" R& y
allowing for approx. 6 dB reserve before hard clipping occurs
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