EMU新品Tracker Pre USB！！

kingcole

1月上市，相当看好这款新品，终于可以USB供电和火牛供电了，就是太难买到了:(
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5 c& c6 v! L/ A; KUSB 2.0音频接口，精度达到24bit/192kHz，两个A级XTC话放，带48V幻相供电。
Tracker Pre USB主要特性：
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• USB 2.0音频接口
• 精度达到24bit/192kHz
• 使用两个A级XTC话放，带48V幻相供电，需要另外供电
• 支持Mac OS X、Windows XP/Vista，包括64位系统
• 赠送Production Tools软件包
• XLR/TRS输入
• 立体声小三芯输入，带5V幻相供电，可接小电容话筒
• 2个大三芯输出
• 耳机输出
• 带发送返回接口可串接外部效果器硬件

kingcole

1.  Signal Level & Clip Indicators
The LED signal level indicators show that you are inputting a proper signal level. With a proper input level, the green signal LED should be flickering, but the red clip indicator should NOT ever be lit. The clip indicators light and show that the input level has exceeded 0dBFS.
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* ~* X& I0 H6 F# {) A5 a2.  Left/Right Gain Controls
1 c4 _' M; |) w& ?  X+ b/ |0 y# dThese controls set the input gain from 0dB to +60dB for the two inputs.

3.  Direct Monitor Level Control
) Q4 M3 l( l# G  OThis continuous encoder controls the amount of direct monitor signal mixed into the outputs. The level is adjustable from -24dB to off.  
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9 W" m. T- Y7 |9 a6 f4.  Direct Monitor On/Off & Mono-Stereo Switch
( @1 M$ I% }0 f* `& ?% v3 o$ ]( CPress the button once to turn on Direct Monitoring. The stereo LED illuminates. In this mode the left and right channels are passed through to their respective outputs at the level set by the Direct Monitor Level control. Press the button again to switch to Mono Direct Monitoring, which sums the left and right direct monitor channels to mono. Mono mode is useful when the two inputs are being used for separate instruments, or when only one input is being used.

6 O! p7 B5 R7 N5.  Headphone Jack
0 [* Y1 {7 j6 L$ v! AConnect your stereo headphones here.  
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. A. f) h8 b: ?8 ^" \1 B/ A6.  Headphone Level Control
4 Y3 p8 A7 |$ H6 Z, W. j* H' eThis knob controls the volume of the headphone output. This switch also turns the Tracker Pre on or off.

/ j/ [- Q; c- K, D7.  5 VDC Power Adapter (optional)
* w1 P: c" E! RAlthough the Tracker Pre is normally bus-powered via USB, it can also be powered by an optional 5-Volt DC power adapter to allow it to be used as a stand-alone stereo microphone preamplifier.
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8.  USB
' V' w' A6 M* [- n6 \Connects the Tracker Pre to your computer via the supplied USB cable. The USB connection provides two-way communication when connected to the computer. Since the Tracker Pre receives its power from the USB, always connect to the USB jack on the computer itself and NOT to a low-power USB connection that may be present on your computer keyboard or other USB peripheral.

9.  Main Outputs (1L & 2R)
' h3 i* B5 o" m1 J9 k* GThe balanced outputs are normally connected to your monitoring system. Either balanced or unbalanced cables may be used. The main output volume can be controlled using the System Volume Control on your Mac or PC. Many "multimedia" computer keyboards contain System Volume Controls.
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10.  Phantom Power on/off
, j: B6 s5 P/ s* J) D* O; }4 }This switch turns 48V Phantom Power on or off to the XLR inputs for use with microphones which require phantom power.

11.  Inserts (1L & 2R)
% C0 R- O3 Z' P. l, m! n4 k5 zThese unbalanced TRS jacks allow you to insert a signal processor, such as a compressor or EQ, after the mic preamps, but before the A/D converter stage. The Insert jacks can also be used to tap off the mic preamp outputs when using the Tracker Pre as a stand-alone stereo microphone preamp.

! q& \3 f/ R) x0 j! k  ]12.  Hi-Z / Line / Mic Inputs (1L & 2R)
1 k0 }; }0 m8 [/ F7 LUse the XLR connector for microphones or balanced line level signals. Use the 1/4¨ jack in the center of the XLR connector as a Hi-Z input for guitar/bass, or as a line level input. The inputs are balanced, but they accept either balanced or unbalanced input signals.

13.  Stereo Mic Input
This 1/8" mini-phone jack is designed to accept a stereo, electret condenser microphone. The jack supplies +5VDC phantom power. Mono microphones can also be connected and will use input 1L. Note: The Stereo Mic jack takes precedence over the Hi-Z/Mic/Line inputs. Inserting a 1/8" plug disables the other inputs.
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  w0 A" y% @8 o: p8 _  Ground Lift Switches
7 a! p) W9 o! [* P9 G4 ?% GThere are "ground lift" switches for both analog 1/4" inputs located on the bottom of the unit. These switches can be used to safely stop the hum if a ground loop occurs in your setup.
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[ 本帖最后由 kingcole 于 2008-2-19 09:06 编辑 ]

kingcole

Technical Specifications
  c% Y  N) ]$ T: {General
! f% a+ o+ I! X, B   Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192kHz from internal crystal (no sample rate conversion)*
   Bit Depth: 24-bit I/O, 32-bit processing
   USB 2.0 Hi-Speed
/ ~- \1 `6 R9 X$ J. m* a    - Full 24-bit resolution at all sample rates
- Stereo in, stereo out at all sample rates

   Zero-latency direct hardware monitoring (disabled at 176.4-192kHz)
0 @. f% k( K* o* H7 _   Windows drivers: ASIO2 and WDM
   Macintosh driver: Apple CoreAudio
) ^( f7 l) Q( q, x8 Z; E   Anti-Pop speaker protection minimizes noise during power on/off
/ d+ B1 R4 T5 `( d' s, Y( A) r% F   Ultra-low jitter clock subsystem: < 100ps RMS
9 ]2 }) Z% E1 l4 l+ ^   USB Bus or AC powered via optional Universal Power Supply
Combo Preamplifiers (2)
4 Y  g% P4 |+ R$ B, \4 v   Type: E-MU&reg; CurrentMorph™ combo mic preamp and Hi-Z/line input
+ a- y( f7 X( b   A/D converter: AK5385
9 _) D3 F+ e5 N: u& I+ q6 t$ ]   Max Level: +6.4dBV bal/unbal (+6.9 dBu)
    - Hi-Z/line balanced input: +6.9dBV bal/unbal (+9.1dBu)
6 K! ]( G0 C5 C0 _; Q# \ - Microphone Preamplifier: +6.4dBV bal/unbal (+8.6dBu)

   Frequency Response (min gain, 20Hz-20kHz): +0.0/-0.03dB
, N* J# |* P; N8 [& l+ u; s5 k   Dynamic Range (A-weighted, 1kHz, min gain): 112dB
3 ]* P* }$ N7 `- U6 I* d# X   Signal-to-Noise Ratio (A-weighted, min gain): 112dB
& y: B5 p2 [: s, \1 L   THD+N (1kHz at - 1dBFS, min gain): -102dB (.0007%)
& S5 n9 z% L, S% C( r  R* ^   EIN (20Hz-20kHz, 150ohm, unweighted): -127dBu
) G0 L5 |5 H* U! a   Input Impedance
    - Hi-Z/line balanced input: 1Mohm
, _6 t7 I) Z: `6 m - Microphone Preamplifi er: 1.5Kohms

# @6 q. P' Z; h$ l% m& PAnalog Line Outputs (2)
   Type: balanced, AC-coupled, 2-pole low-pass differential filter
1 g  I. j$ k' e! f. G4 F- z   D/A converter: CS4392
' W* V4 W% a! n2 v   Max Level: 6.6 dBV (unbalanced)
   Frequency Response (20Hz - 20kHz): 0.00/-0.08dB
   Dynamic Range (1kHz, A-weighted): 112dB
; x7 x. |8 \, t   Signal-to-Noise Ratio (A-weighted): 112dB
2 q9 D# b& g6 K( N; \+ f& M   THD+N (1kHz at -1dBFS): -99dB (.0011%)
, k6 ?/ F- }) Y" B  W: v   Stereo Crosstalk (1kHz at -1dBFS): <-111dB
Headphone Amplifier
. R! U- i3 E5 @. u0 e   Type: Class-A power amplifier
   D/A converter: CS4392 (shared with Line Out)
6 @0 ^' a4 `# }3 v: q   Gain Range: 60dB
, k2 S8 _5 X; E; s   Maximum Output Power: 22mW
   Output Impedance: 22ohms
7 \, Y2 t% d' m6 s   Frequency Response (20Hz-20kHz): +0.02/-0.07dB
   Dynamic Range (A-weighted): 112dB
   Signal-to-Noise Ratio (A-weighted): 112dB
7 ?' v. ~5 p. O! ~: D$ j. d   THD+N (1kHz, max gain): 300ohm load: -99dB (.0011%)
   Stereo Crosstalk (1kHz at -1dBFS, 300 ohm load): <-90dB
( e1 t$ c$ n+ w- Q, MSynchronization
$ ~3 r7 M0 ^( W# i8 _   Internal crystal sync at 44.1, 48, 88.2, 96, 176.4, 192kHz*
( }2 s0 _& [1 b8 q+ N/ h: ~8 U* Macintosh operation up to 96kHz only at this time - check www.emu.com for updates
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Retail Box Contents
   E-MU Tracker Pre USB 2.0 Audio Interface
   USB cable (2 meters)
: q+ A* K! j7 v+ r! D# a5 E   Installation Guide
. [' c& ~* ^! J   E-MU Software/Manual Installation CD-ROM (OS X /Windows)
    - Windows XP, Windows x64, Windows Vista, Windows Vista x64 Drivers
- Mac OS X 10.4, Mac OS X 10.5 Drivers
- Owner's Manual and Tutorials
- Adobe Acrobat Reader (Windows only)

3 q  w) S9 U2 @- m& D   E-MU Production Tools Software Bundle DVD (OS X /Windows)
    - Windows Applications
    - E-MU Proteus VX (with over 1000 sounds)
   - Cakewalk Sonar 6 LE
   - Steinberg Cubase LE4
   - Celemony Melodyne essential
; m5 y* J" k' m% Y* ^& q+ J8 y8 i) N   - IK Multimedia AmpliTube Duo
, U9 y! y/ @# F7 ?* z   - SFX Machine LT
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! E8 m, W# U, b- W - OS X Applications
    - Steinberg Cubase LE4
# |7 k3 d$ J; h) G* `   - BIAS Peak Express 5
) m" v+ ]6 g+ B! n0 ^" |) r- }   - Celemony Melodyne essential
   - IK Multimedia AmpliTube LE
   - SFX Machine LT
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0 h6 w8 `( }" E0 `" K+ P8 d   Ableton Live Lite 6 E-MU Edition CD-ROM (OS X, Windows)
' Q* i; e- X0 o+ v    - Ableton Live Lite 6 E-MU Edition
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   Waldorf Edition LE CD-ROM (OS X, Windows)
: \' v( L' c1 q7 h+ E    - Waldorf Edition LE


( @) V: x; o; Q- U! l  M Minimum System Requirements
Windows:

2 h( ?$ v6 x' c6 v, t   Intel&reg; or AMD&reg; processor - 1.2 GHz or faster
& Q7 S7 K1 }+ ~- v" g# D   Intel, AMD, or 100% compatible motherboard & chipset
! q6 H- Q+ J% M* H   Microsoft&reg; Windows&reg; XP (SP 2 or greater), Windows XP x64, Windows Vista, or Windows Vista x64
   1 available (Hi-Speed) USB 2.0 port *
' _2 e: `8 K3 p* [  d* k7 b   512 MB System RAM
$ o+ t6 i$ L. J$ [/ `   900 MB of free hard disk space for full installation
   CD-ROM/CD-RW drive required for software installation
8 @. H' H* J: W( R: S   DVD-ROM drive required for bundled software installation
   XVGA Video (1024 X 768)

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   Apple&reg; Macintosh&reg; G4 800 MHz G4 compatible or Intel-based processor
5 I+ l; p! R4 D# ?8 n/ y   Apple Macintosh OS X (10.4.3 or greater)
) d0 l$ j5 V' r/ p% E9 X) J   1 Available (Hi-Speed) USB 2.0 port †
6 \$ ^4 Y% m9 I5 u   512 MB System RAM
   500 MB of free hard disk space for full installation
   CD-ROM/CD-RW drive required for software installation
   DVD-ROM drive required for bundled software installation
0 u; {. m& ~" j   XVGA Video (1024 X 768)
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: S+ K' R) W9 m' E- O$ m0 z* When connecting the Tracker Pre to a USB 1.1 port on a Windows PC, performance is limited to 16-bit and 44.1/48 kHz recording and playback.
% d1 d7 Q( J' U% [7 A6 F3 g2 e† USB 1.1 is not supported on the Macintosh

kingcole

官方报价：USD 149.99
个人认为在这个价位的USB DAC，就算EMU的这几款不错了，起码用的是自己开发的接收芯片和驱动。下图是0202的内部图，Tracker Pre USB 应该就是只改动了一下话放与接口，核心是一样的
# |. \6 p& T) ^! x, X% H( a:lol: 这回要力捧一下EMU了:loveliness:
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[ 本帖最后由 kingcole 于 2008-2-19 09:21 编辑 ]

乔治亚斯

我想说一句：真丑

kingcole

RightMark Audio Analyzer test report

Testing device	E-MU 0202 | USB
Sampling mode	16-bit, 44 kHz
Interface	MME
Testing chain	External loopback (line-out - line-in)
RMAA Version	6.0.5
20 Hz - 20 kHz filter	ON
Normalize amplitude	ON
Mono mode	OFF
Calibration singal, Hz	1000
Polarity	inverted/inverted

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Summary

Frequency response (from 40 Hz to 15 kHz), dB	+0.01, -0.09	Excellent
Noise level, dB (A)	-96.0	Excellent
Dynamic range, dB (A)	96.4	Excellent
THD, %	0.0010	Excellent
THD + Noise, dB (A)	-89.4	Good
IMD + Noise, %	0.0046	Excellent
Stereo crosstalk, dB	-97.9	Excellent
IMD at 10 kHz, %	0.0049	Excellent
General performance	& ~% _: J# J8 H( p5 f" k	Excellent

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' y8 [7 O2 Q2 ]  J* UFrequency response[img=512,315]mhtml:file://I:音响资料07.1.220404USBRightMark Audio Analyzer test  [MME] E-MU 0202  USB 16-44.1.mht![/img]

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From 20 Hz to 20 kHz, dB	-0.24, +0.01
From 40 Hz to 15 kHz, dB	-0.09, +0.01

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Noise level[img=512,315]mhtml:file://I:音响资料07.1.220404USBRightMark Audio Analyzer test  [MME] E-MU 0202  USB 16-44.1.mht![/img]
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	Left	Right
RMS power, dB	-94.8	-94.9
RMS power (A-weighted), dB	-96.0	-96.0
Peak level, dB FS	-87.3	-83.3
DC offset, %	-0.0	-0.0

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Dynamic range[img=512,315]mhtml:file://I:音响资料07.1.220404USBRightMark Audio Analyzer test  [MME] E-MU 0202  USB 16-44.1.mht![/img]

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	Left	Right
Dynamic range, dB	+95.3	+95.3
Dynamic range (A-weighted), dB	+96.4	+96.4
DC offset, %	-0.00	-0.00

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THD + Noise (at -3 dB FS)[img=512,315]mhtml:file://I:音响资料07.1.220404USBRightMark Audio Analyzer test  [MME] E-MU 0202  USB 16-44.1.mht![/img]

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	Left	Right
THD, %	+0.0010	+0.0009
THD + Noise, %	+0.0036	+0.0036
THD + Noise (A-weighted), %	+0.0034	+0.0033

Intermodulation distortion[img=512,315]mhtml:file://I:音响资料07.1.220404USBRightMark Audio Analyzer test  [MME] E-MU 0202  USB 16-44.1.mht![/img]

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	Left	Right
IMD + Noise, %	+0.0046	+0.0046
IMD + Noise (A-weighted), %	+0.0038	+0.0037

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Stereo crosstalk[img=512,315]mhtml:file://I:音响资料07.1.220404USBRightMark Audio Analyzer test  [MME] E-MU 0202  USB 16-44.1.mht![/img]
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	Left	Right
Crosstalk at 100 Hz, dB	-101	-98
Crosstalk at 1000 Hz, dB	-98	-96
Crosstalk at 10000 Hz, dB	-90	-91

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IMD (swept tones)[img=512,315]mhtml:file://I:音响资料07.1.220404USBRightMark Audio Analyzer test  [MME] E-MU 0202  USB 16-44.1.mht![/img]
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	Left	Right
IMD + Noise at 5000 Hz,	0.0051	0.0050
IMD + Noise at 10000 Hz,	0.0047	0.0048
IMD + Noise at 15000 Hz,	0.0047	0.0049

kingcole

原帖由 乔治亚斯 于 2008-2-19 09:22 发表
/ z: m6 R2 V0 S% t$ r  m( O我想说一句：真丑

:lol: 虽然我很丑，但是我很温柔

garou

外置声卡测试成绩就是强啊～

kovaco

丑陋，指标不高，测试成绩平庸。。。。

乔治亚斯

原帖由 kingcole 于 2008-2-19 09:24 发表
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:lol: 虽然我很丑，但是我很温柔

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$ B, `: k' r) A& l1 L' d1 Y$ l! h原来王子喜欢温柔的:rolleyes:

kingcole

:loveliness: 正确来说是喜欢温柔乡

kingcole

这个价位的USB声卡有这个指标应该算不错了

乔治亚斯

原帖由 kingcole 于 2008-2-19 10:24 发表
:loveliness: 正确来说是喜欢温柔乡

:funk: 飘过。。。。。。。。。。。。。

kingcole

还不是因为我的本本没有火线接口～～～郁闷～～:( 要么换本本，要么换声卡

flz821028

阿焦上:loveliness:

chenminxp

原帖由 flz821028 于 2008-2-19 15:06 发表
阿焦上:loveliness:

他还好意思出来:w00t):

sd-iori

不如直接上0202

H3O

midifan有得买哦~

kingcole

原帖由 sd-iori 于 2008-2-19 18:33 发表
不如直接上0202

Tracker Pre USB是0202的升级版本