Apogee Trak 2 Manuale Utente Scaricare il pdf

Microphone Preamplifier

Parameter Value Units

Gain (adjustable by software) –90 to +90 dB

Max input level, mic input +24 dBu

Max output level, analog out +28 dBu

Minimum load impedance 150 Ω

Relative THD+Noise –109 dB (at 1 kHz)

Dynamic range 118 dB (A weighted)

Bandwidth 10 Hz – 300 kHz ±1 dB

HPF rolloff at 40 or 90 Hz 18 dB/octave

A/D Converter

Parameter Value Units

Resolution 24 bits

Sample Rates 44.1–96 kHz ±10%

Relative THD+Noise, –0.1 dBFS –112 dB (A-weighted)

Dynamic range, –60 dB –119 dB (A-weighted)

Peak spurious component –126 dB (max)

Group delay in passband 34/Fs seconds

Passband ripple ±0.001 dB

Digital ﬁlter stopband 0.5542Fs kHz

Stopband attenuation 117 dB

Interchannel crosstalk ≤ –120 dB (at 1 kHz)

Frequency Response, 10 Hz–20 kHz

Gain ±0.025 dB

Phase < 0.01 degrees

Maximum input levels

Consumer mode +6 dBV

Professional mode +28 dBu

Input impedance at line inputs

Consumer 15 kΩ

Professional 9 kΩ

Sensitivity adjusted by software.

Common-mode rejection ratio

60 Hz >>100 dB

1 kHz >> 80 dB

Clock jitter, 32–106 kHz <<15 pSec

Crystal Oscillator accuracy ±50 ppm

D/A Converter

Parameter Value Units

Resolution 24 bits

Conversion system Delta-Sigma

Sample Rates 32–106 kHz

Relative THD+N, S/(N+D)

–0.5 dBFS input –104 dB (at 1 kHz)

Dynamic range, –60 dB –116 dB (A-weighted)

Passband ripple 0.0002 dB

Stopband attenuation 115 dB

Interchannel crosstalk ≤ –125 dB

Frequency Response, 10 Hz–20 kHz

Gain ±0.15 dB

Phase << 1.0 degrees

Output levels adjustable by software

from consumer level (–10 dBV) to professional level (+28 dBu)

Digital Signal Processing

Parameter Value Units

UV22HR Amplitude

16 bits –84 dB

20 bits –108 dB

Metering

Accuracy (CAL mode) ± 0.1 dB

Over Detection 1–4 consecutive 0 dBFS readings

(user-deﬁnable)

System

Parameter Value Units

AC line voltage 100, 120, 220, 240 v ac (set internally)

Fusing 5 x 20 mm, 1.6A (100–110v); 800 mA (220–240 v) slow-blow

Power (fully loaded) 50 Watts

Size (w, h, d) 19 in, 1.75 in (1U), 14.25 in

Weight 12.5 lb (5.8 kg)

Hear the Apogee Difference.

Photography by David Blattel

Created by Richard Elen

Printed in U.S.A.

Trak2v1/5M/0600

In addition, the

Trak2 delivers a new,

more powerful version

of Apogee’s unique Soft Saturate system, introduced on

the original AD-500, which simulates analog tape com-

pression. Both features can be switched in and out on a

per-channel basis.

Maximum Interface Versatility

The built-in digital output, software-switchable to deliv-

er AES/EBU or S/PDIF signals, is only the beginning of

the unit’s prodigious interfacing capabilities.

Key to the Trak2’s interface capability is the inclusion

of two Apogee Multimedia Bus (AMBus) slots. These

enable the Trak2 to connect to a wide variety of indus-

try standard interfaces including Digidesign’s Pro Tools,

ADAT, TDIF, SDIF-II, SSL HiWay, and others, with new

cards being added all the time. Many cards (such as

those designed for use with modular digital

multitracks) support Apogee Bit-Splitting,

which enables you to use standard 44.1/48,

16-bit recorders to store 20- or 24-bit audio,

and even 96 kHz signals.

The Trak2 features the latest ver-

sion of the Apogee Ultra-Low Jitter

Clock, which is used to lock the unit

to incoming digital (and optionally video) signals. A

sophisticated phase-locked loop locks ﬁrmly and accu-

rately to the sync source while at the same time signiﬁ-

cantly reducing jitter components in the

signal, improving signal clarity and

stereo image width and stability.

Included in the Trak2 is the latest

incarnation of Apogee’s industry-

standard UV22 system for digital

word-length reduction, called

UV22HR (High Resolution). Used on

an estimated 80% of CDs mastered in the United States,

UV22 takes a high-resolution digital signal and reduces

the word-length to 16 or 20 bits for CD or DVD-V mas-

tering without signiﬁcant loss of detail, and without

increasing the noise ﬂoor above the theoretical level for

the word length – unlike noise-shaping and similar tech-

niques. And unlike inferior DSP approaches, UV22HR’s

unique, highly-optimized technology does not require

different settings for different types of program: one

size really does ﬁt all.

Add a D/A

The Trak2 includes a special slot for an optional 2-chan-

nel or 8-channel D/A card with speciﬁcations matching

those of the A/D section, turning the Trak2 into a com-

plete digital audio conversion system with two A/D

channels and up to 8 D/A.

The AMBus cards also provide a way of converting

between different digital signal formats. Any signal

brought into the Trak2, analog or digital, is available

from all interfaces, including the D/A. Source and

Destination Monitoring, plus a powerful eight-channel

digital routing matrix, can be used to set up multiple

paths through the unit – for example, bringing two chan-

nels of analog into Pro Tools and eight digital channels

from Pro Tools back to the D/A for monitoring, while

simultaneously feeding a DA-78.

Hear the Apogee Difference

You’ve never encountered anything like the Trak2 from

Apogee Digital. With the sweetest-sounding mic pre-

amp you’ve ever heard, superb 24-bit, 96kHz A/D and

optional D/A conversion, interfacing with almost any

digital system including a direct connection to Pro

Tools… the possibilities are endless.

Try the Trak2 at your authorized dealer today… and

hear

The Apogee Difference.

Trak2 Specifications

High resolution. Apogee quality.

APOGEE ELECTRONICS CORPORATION, 3145 Donald Douglas Loop South, Santa Monica, California 90405-3210, USA.

Telephone: +1 310/915-1000. Fax: +1 310/391-6262. Email: [email protected]

For full details and application notes on all Apogee Electronics products, visit our Web site at http://www.apogeedigital.com/

The Trak2’s user interface is an entirely new departure

for Apogee. A central feature of the front panel is the

large, clearly-readable backlit LCD. To its left are four

cursor-control keys used to navigate around the

display, and to the right of the display there is a

substantial delta-wheel that enables values to be select-

ed, or parameters entered with a simple push.

The

Active Status Display (see front-panel picture

overleaf) shows the current conﬁguration of the main

signal path through the unit: individual aspects of the

chain can be selected and modiﬁed. The

System Setup

Screen

shown here allows rapid access to the primary

features of the unit. Other screens determine the gain

structure, HPF settings, Soft Saturate and Soft Limit con-

ﬁguration, UV22HR, headroom, calibration, the word-

length of the signal path through the unit, and a host of

other functions. When you’ve conﬁgured the Trak2 for a

particular application, you can store the unit’s entire set-

tings in any one of 64 user presets for instant recall.

The Trak2 front panel interface is rounded out by two

high-resolution LED bar meters of the same design as

those on the acclaimed AD-8000 – with several different

modes including simultaneous peak and average, peak

hold and over indication. Overs can be logged on the

LCD display. In addition to the meters, LEDs indicate

polarity inversion, phantom power, insert and aux input

status, plus mic preamp clipping independently of the

main digital over indicators.

Powerful, Easy User Interface

Photography by David Blattel

Created by Richard Elen

Printed in USA. T2v1/5M/0700

The features and speciﬁcations above, and other information provided in this document, are subject to change without notice. E&OE. Apogee

Electronics Corporation reserves the right to make design changes without prior warning, and the appearance or mention of any feature, future

enhancement, capability or performance parameter given in this document is not a guarantee of its availability in or in conjunction with an actual unit.

Apogee, Trak2, UV22, UV22HR, Soft Limit, Soft Saturate, AMBus, Clocked by Apogee, Apogee Bit-Splitting and the “96k” device are trademarks or

registered trademarks of Apogee Electronics Corporation. Other trademarks are the property of their respective owners.

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Sommario

Pagina 1 - Trak2 Specifications

Microphone PreamplifierParameter Value UnitsGain (adjustable by software) –90 to +90 dBMax input level, mic input +24 dBuMax output level, analog o

Pagina 2 - The Apogee Trak2

Soft Li mit and Soft Saturate:Apogee’s proprietary technologies areselectable on a per-channel basis. SoftLimit allows maximum level without overs;Sof