2700 Series High Performance Audio Analyzer

The 2700 Series is designed for audio engineers who need the highest performance, lowest distortion and greatest flexibility possible in their audio analyzer. It has the best performance of any audio analyzer in the world.

Brochure | Specs | Manuals | Software | Configuration options

The unparalleled precision of a dedicated hardware instrument
Fast instrument operation and powerful analysis under sophisticated control software
Programmatic control for high-speed automation
Serial digital interface testing
True dual domain instrument for highest performance
192 kHz digital input and output capabilities
200 kHz analog / 100 kHz digital bandwidth
Vanishingly low residual noise and THD+N
Generates and analyzes a broad palette of stimulus signals such as MLS, white and pink noise and other special purpose waveforms

The SYS-2722. High performance audio analyzer

AP: INTOLERANT ABOUT THD+N

When it comes to THD+N as an indicator of audio performance, low is good.

Most high-end converters exhibit a THD+N of –105 dB or better across the audio bandwidth. We spec the SYS-2722 at –112 dB. And that's conservative.

We could quote THD+N at the sweet spot of the curve and claim –118 dB. But that would be misleading. We prefer to adhere to best practices and publish a value that is true for the entire input range of the instrument.

Even within these constraints,
the SYS-2722 is the industry’s undisputed performance leader, which is why AP is the standard for engineers who need their numbers to speak loudly.

Key features


Measurements Amplitude Bandpass / Bandreject THD+N A Amplitude and Ratio IMD: SMPTE / DIN, CCIF, DIM, DFD Wow and Flutter (with option) 2 channel ratio Crosstalk	Generated Waveforms Sine waves, including mono, stereo, dual, IMD, phase-shifted and tone burst Square waves White and Pink Noise Special purpose waveforms for polarity testing, pass-through applications, digital data testing and digital interface testing MLS (maximum length sequence) Arbitrary waveforms from PC files for multitone and other applications

Reporting On-screen results and graphing Results values in tabular form, exportable to data files Graphs exportable in raster image (bitmap) and vector image formats	Automation All controls can be programmatically controlled All results can be programmatically read Powerful AP Basic programming language included. Built-in macro recorder to simplify program creation. Optional GPIB (IEEE 488 general purpose interface bus)

Connectivity Balanced and unbalanced analog inputs and outputs AES3, S/PDIF and Toslink digital inputs and outputs Auxiliary inputs and outputs, including monitors, triggers, synchronization Parallel digital inputs and outputs I²S and proprietary serial digital interfaces using PSIA-2722 adapter dc and resistance measurement, dc output and device event control using optional DCX-127 module

Dual Domain The most powerful of the 2700 series audio analyzers is the SYS-2722, a dual domain instrument. A dual domain audio analyzer provides full generation and analysis capabilities in both the analog domain and the digital domain, simultaneously. Why is this important? Analog Domain Because high-precision analog audio design offers markedly superior performance to even the best digital implementations in several key areas, especially residual noise and distortion, and high-frequency response. Most modern competitive audio analyzers are converter-based, without true analog domain generation and analysis. A converter-based analyzer uses ADCs to convert analog input signals for digital analysis and DACs to convert digitally-generated signals for analog output. This technique is easier and less expensive, but at a cost in performance. Digital Domain Digital signal generation and analysis are essential in modern audio, and our dual domain SYS-2722-192k provides a complete solution for testing digital audio as well, at sample rates up to 200 kHz. SYS-2722 can be configured as a converter-based analyzer, too, using digital signal processing to generate and analyze analog signals for the best of both domains. Cross Domain Engineers designing digital converters often require cross-domain measurements, where a signal must be generated in the digital domain while the converter's output is measured in the analog domain (or vice versa). Only a dual-domain audio analyzer can accomplish this with meaningful results.

Specs

Download a PDF of the full spec.
(Specs published in "Getting Started" document)

Low Distortion

Analog system THD+N, less than –112 dB at 1 kHz, in a 20 kHz
measurement bandwidth. Typical worst case harmonic less than –130 dB.
Digital distortion and spurious products,
less than –160 dB.

High Bandwidth

Analog signal generation to 204 kHz.
Analog measurements to 500 kHz.
FFT and multitone analysis to 120 kHz.

Low Noise

Analog analyzer noise less than 1.0 µV (–117.8 dBu),
measured in a 22 Hz to 22 kHz bandwidth.
Analog analyzer noise less than 0.7 µV (–120.9 dBu),
A-weighted.

Flat Response

Typically ±0.003 dB, 20 Hz to 20 kHz.

Low Crosstalk

Less than –140 dB, analog input.
Less than –120 dB, analog output

Low Jitter

Less than 600 ps in a 700 Hz to 100 kHz measurement bandwidth.
Less than 1.0 ns in a 50 Hz to 100 kHz measurement bandwidth.

FFT Acquisitions

Up to 4 M samples (87 seconds at a sample rate of 48 kHz).