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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 8 E4 s: K' t! I$ L
2 w! L1 |& x& h( s* z英文电子说明书
2 g! |0 d; P, ?7 H3 R, f5 n2 C[1] POWER Switches the unit on or off. The unit is ready to operate with the factory! A! e: Z( z0 A* R: a( c
default settings. The subsequent settings remain stored in a Flash EPROM- Z& d* `' U2 f. b" X" ]
after switching the unit off (unit contains no battery).
$ o2 ~, E" ^. A6 {& l8 E, r[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
# O1 ]) J- F0 _3 Z between microphone and line sensitivity setting ranges.
9 C6 j' t& ?+ M) q5 n' i( s g Mic: Range –40...+20 dBu6 g' G/ c4 ?# _/ {. B1 V
Line: Range +14 dBu, +24 dBu
0 m5 N. b; B+ [[3] Fine Gain Potentiometer for fine input sensitivity setting.
% f3 d, u8 Z- L! |, n- t2 q Range of additional gain: 0...+15 dB.
- c) {& g7 l# s( J+ R9 \ Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents; | t6 W# K% l/ k
the dBu value of an analog input signal which causes a full-scale output of
+ ^8 ]8 w2 t7 f" l1 ^ the A/D converter. v6 v& L1 F4 _
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;; w% A. ], y- r9 D
the peak level is therefore +16 dBu. The “Input dBu FS” rotary! h( p! t* A3 |* i/ ]
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
% p e& }' V/ d8 { Gain” potentiometer [3] increases the gain by 8 dB.& Q. q4 s& N7 P; n) b+ T
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.$ U( ^8 _0 H3 d" e- Y; M- t+ t
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals1 M9 |# D# l& R2 h" C. F
have more body; percussive instruments are less aggressive.
T( w7 Y( R5 V2 M8 N; Q& N; K& I& k The group delay behaviour due to AC coupling of the stages is different in6 f7 m% t. B8 r3 w& D
tube amplifiers.0 f. D- f$ ]: P, w, V" ^
The “Bass Warmth” control allows to select the frequency range
9 y: j& q# Q0 [+ I (10...200 Hz) within which the effect is active.# j r+ C! H& A5 m+ E) V
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
- _9 N, C1 C: ]7 [ Valve amps have a characteristic response, mid-frequency harmonic content- ~9 L% M) E7 v$ i
is emphasized.; q4 k! ?: N7 F% @# g# F
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
! e1 w* g* i) t; _6 X: W* e( s The harmonics spectrum of a delicately overloaded valve amplifier is completely
( H7 i& X4 ` g/ \ `, k different from an overloaded transistor stage.
, A; j9 A8 Z9 h, [; x/ J The “Gain” control adjusts a gentle overload while the odd-harmonics content6 g7 B: U5 U) B7 D4 g1 Y" r
can be adjusted with the “Clip” control.- r+ F7 a1 S( f2 O# T& U$ r
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24! i6 d& h* K& i. B0 r0 y
dBu FS." j+ h0 V% K9 x- l+ _
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
R! M. T) U5 e: q desired channel.7 w4 p: N4 F( `- s
The “VALVE” LED is on when the Valve Dignifier stage is active.; H8 B) V' D' e9 U' G$ b
[9] INSERT INSERT function.
& t3 h+ v( P; C* n/ |( \9 i; u; |9 C5 b First key pressure: INSERT POST VALVE, the Insert Send is tapped after1 D3 u9 G- g: _
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
: L7 p0 }/ B2 N+ t and AES/EBU outputs.+ T3 l3 X' D, l. B; r
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
% L8 ^* c/ x; X5 d# L the valve stage (display: “INS” and “PRE”); the Insert Return is fed via8 ^5 ~- ?. v) @, L; X: C
the valve dignifier stage to the Line and AES/EBU outputs.& a5 T" o/ F! d. r! H; {) l/ ?+ ?; p
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
" E$ l1 {) u J5 m stage (if active) to the Line and AES/EBU outputs (also the Insert Send output d0 Q2 a8 U1 \- C5 l
receives this signal; display: none).
% ?" H7 Z y! X+ y. |) _5 \ n$ Q Insert Send and Insert Return are electronically balanced and equipped with& E$ N& r# X& m$ q4 S# N+ U8 M
XLR connectors.0 H% K; z3 p) ?0 O9 k
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
: ]6 Q$ b$ R# J0 R$ N* v ADAT digital interfaces. Each input channel can be switched to one of the
$ p) o+ N% \/ D4 U) ` channels 1...8 of the multichannel interface. If desired, also a mono mix is
0 C3 A0 m* z* ] possible by selecting the same output channel for both input channels.: b5 n. B, N9 E
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
4 D p5 _% q( |0 X$ h/ U6 F channel.; L& m% E0 |8 h
Can be operated only if the input gain selector is in Mic position. The3 a: i5 B, _# w5 l0 V( y- C. ?6 f
setting remains stored when switching over to a line gain setting.6 X, k/ \' |; f7 |! P/ Z
[12] Activates the high pass filter on the microphone inputs of the desired channel.: n* h/ ^5 v8 P6 Z/ n7 b" I
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.! y( R/ y( E6 a2 b& A: h
Can be operated only if the input gain selector is in Mic position. The
: Y9 u! H# W: h# m setting remains stored when switching over to a line gain setting.( Q+ q! l! C3 t. D# v3 g, w
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.* h9 e3 `4 q2 P1 F% d
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:: g2 E: r; n, t/ H+ Y
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
! j3 S& X5 }3 _; }# c2 L: F Noise Shaping (display: “16NS”) can be selected.8 C0 a3 }+ |% h- ?
[15] SYNC Selects the synchronization source for the unit. Possible selections are:. s$ p# \0 g, E( Y) U* l+ x
INT 48 Internal quartz reference, 48 kHz
3 [( T6 T4 }. k* [1 J INT 44 Internal quartz reference, 44.1 kHz. _. y- j: h+ ~. v: i+ V
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
* @# n& L7 k1 G% S8 r% s1 @ AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)( |" f1 B) K" c
AUTO Selects sources automatically in the sequence AES-WCLK-INT3 B! A" y" @1 v6 `. ^ K+ R
VAR Indication only, active if the external source frequency deviates from 48 or
' Y0 H0 _) Y. Q) a; [9 U 44.1 kHz for more than approx. ±3 %.
: K. n+ o4 i" ]6 k" H. F[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
4 L3 ^- {/ g' L/ M either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.5 z8 p! f V% o# y
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
: z- x5 _0 D( w the danger of overloading the A/D converter with short signal peaks (if/ [/ N$ e7 l# Y# Z" A: n/ |! h
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
5 ]5 d% N, q7 w allowing for approx. 6 dB reserve before hard clipping occurs$ \ i3 C! E" j2 V: D$ |
3 i6 w h C$ n! X6 D+ ~5 F |
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