Sencore SP495

The Sencore SP495 (formerly sold as the Terrasonde Audio Toolbox 3c) is the top of the line color version of the latest model in the Sencore SoundPro line with improved analog specifications. Building on the concepts pioneered by the ATB1, SP295 (ATB-Plus), and SP395 (ATB3 monochrome) (see below) it adds a high resolution color backlit display and the ability to use phantom powered measurement mics. It contains two Grace Design audiophile grade microphone preamps with 48 volt phantom power, has a USB port that allows the SP495 to be used as a USB preamp for recording on your computer (recording software not included), SPDIF & Toslink digital outputs, and can record wave files to a SD memory card. The SP495 has all the possible firmware modules already loaded, and unlock codes can be purchased to enable any extra modules you might desire. These SP495 not only come with the standard SoundCore firmware module, but have all of the modules unlocked. They are supplied with a Type 2 phantom powered test microphone, connection cables, universal AC power supply, carrying case and CD with software and manual. They have balanced and unbalanced input and output connections on XL, 1/4", and RCA connectors, a speaker, headphone output, RS232 serial, SPDIF, Toslink, and USB audio connections.

SP495 functions: SPL menu Sound Level Meter - Flat, A wtd, C wtd, o31 - o16k, t25 - t20k, Slow, Fast, Impulse, Peak Leq - Flat, A wtd, C wtd, o31 - o16k, t25 - t20k Dosimeter - Exchange rate 3 dB ISO, 4 dB DOD, 5 dB OSHA, A wtd, C wtd Sound Study Graph - Flat, A wtd, C wtd, o31 - o16k, t25 - t20k Acoustics menu Real-Time Analyzer (full or 1/3 octave) FFT Analyser (full, 1/3, 1/6, 1/10, 1/30 octave) Energy Time Graph Reverb Decay Time Multi-Band Decay TDA menu TDA Noise menu ALcons RaSTI STI-PA Noise Curves - NCB, RC, PNC Transmission Loss - STC, RW, OITC Audio Stethoscope - Flat, A wtd, C wtd, o31 - o16k, t25 - t20k Tech Bench menu Stereo Level Meter - Vrms, Vp-p, dBu, dBV, dBr Signal Generator - analog & digital outputs - sine, square, white noise, pink noise Amplitude Sweep & plot Distortion Meter - THD, IMD (SMPTE 60/7k, DIN 250/8k) Phase Meter Crosstalk Meter Speakers menu Speaker Polarity Speaker Distortion Impedance Meter Impedance Sweep & plot Cable Tester Tools menu Stereo Recorder Impulse Recorder USB Preamp Control Auto HT Tests Auto Time Delay Card Logging/Memory Utilities menu Audio Scope - S/D - X-Y Save Settings Clear Memories/Macros Macros Setup & Calibration PC Interface/About...

The SP495 sells new for $5500.00 with all the modules unlocked, but I have available limited quantities of refurbished SP495 with 90 day Sencore factory warranty, freshly calibrated with the latest firmware, TerraLink, Type 2 phantom powered test microphone, universal AC power supply, carrying case and CD with software and manual for only $2,600.00 plus shipping. I can supply it with a brand new Josephson C550H microphone (a much nicer mic) instead of the Type 2 mic for $2,950.00 plus shipping. The SP495 are functionally perfect but may have minor cosmetic blemishes. Ground shipping with insurance in the 48 states is $71.00.

Purchase refurbished Sencore SP495 using PayPal. (PayPal Confirmed shipping address in the continental 48 USA states only.)

Purchase refurbished Sencore SP495 with new C550H mic using PayPal. (PayPal Confirmed shipping address in the continental 48 USA states only.)

Sencore SP395

The Sencore SP395 (Sencore price $2995 plus options) is the Terrasonde Audio Toolbox 3 Monochrome with Sencore's model number on it. It is the first model of the 3rd Generation Audio Toolboxes, and contains two microphone preamps by Grace Designs with switchable 48 volt phantom power. The balanced inputs accept 1/4" and XL connectors. Outputs are provided for 1/4", XL, and RCA connectors. A USB port allows the SP395 to be used as a versitile calibrated USB preamp for measurement and recording with your PC. A RS232 connector is provided for serial control. Measurments are made to a degree of precision not formerly possible, and over a frequency range of 1 Hz to 30 kHz. The Transflective 320 x 240 LCD screen like on a PDA can be easily viewed day or night. This is the platform for the audio and acoustic measurements of tomorrow. The Sencore SP395 SoundPro Audio Integrator provides comprehensive, easy to use audio/acoustic analysis, for analyzing distributed sound and sound reinforcement systems, plus live sound applications and industrial sound analysis; all in one handheld, battery-operated instrument. The Audio Integrator makes easy work out of any acoustic or audio system analyzing challenge. It simplifies speaker coverage analysis, speaker cluster time alignment, speaker time delay adjustments, and frequency response equalization. It tests and documents background noise level, reverberation time band-by-band, and system speech intelligibility. The Audio Integrator analysis functions are implemented with 64-bit DSP firmware algorithms. As each function is executed, the analyzer takes on one of over 25 different audio analysis personalities. A standard core of these test functions is standard equipment. Optional test functions are grouped into "firmware modules" for purchase at any time, at which time they are unlocked for use. This permits the SP395 to be upgraded (in the field) for special applications, as needed, to better fit budget requirements. These SP395 come with all the optional firmware modules unlocked, saving you a huge amount of money! The SP395 features dual phantom-powered high-gain/low-distortion microphone inputs, powerful dual-FFT processing, integrated USB audio interface, and independent analog monitoring. The SP395 is supplied with a Type 2 standard measurement microphone, XLR cable, USB cable, impedance test cable, power adapter/charger, battery, and padded carry case. The removable lithium-ion rechargeable battery provides 4-5 hours of portable testing. Here's What the SoundPro Audio Integrator Delivers: Fast and accurate adjustments of speaker coverage and cluster alignment, time delays and speaker frequency response equalization; ensures a high-performance, problem free installation. Tests and documents band-specific background noise, room reverberation, and speech intelligibility to identify problem areas and sign-off the system installation. Easy to use and interpret user-interface helps you quickly make the test and get the readings you need. Portable, battery operated (5 hours run time) and handheld instrument in a ruggedized case means you can make precise audio system measurements wherever you do audio system installations. Optional software feature add-ons such as speech intelligibility, time delay analysis and more mean you are never caught short. When you buy one of these SP395 from me, all the optional software modules are included at no extra charge!

SP395 SoundPro Audio Integrator Specifications

SPL Measurements: Displays true RMS SPL

Signal Generator: Signals: Sine, square, Gaussian white noise, pseudo-random pink noise, band-filtered pink noise

Real-Time Analyzer, FFT Analyzer: Plots sound energy levels vs. octave band-filtered spectrum

Level Meter: Stereo level meter reads in dBu, dBv, Vp-p, Vrms, or dBr (reference)

Energy-Time Graph (ETG): Graphs impulse sound decay energy vs. time or distance; Identifies arrival time of direct sound and audio reflections

Reverb Decay Time: Calculates time for residual pink noise test signal to decay 60 dB in room

Distortion Meter: Measures distortion of an incoming signal

STANDARDS

Power:

SPFW-TDA Time Delay Analysis Firmware (Sencore price $795 - but no charge with these SP395)

The TDA function synchronizes a swept audio generator (20-20,000 Hz) and a tracking audio 1/12 octave band level meter, with a variable filter Q of 6 to 150, graphing the detected level. TDA measurement eliminates room reverberations or echoes for accurate frequency response testing of speakers and microphones, as if they were in an anechoic chamber.

The TDA function is ideal for analyzing a room's sound decay across the frequency band. If multiple TDA frequency sweeps are performed, with each sweep delayed in time from the previous sweep, a sound decay pattern emerges. Room modes appear as ridges that remain at a higher level after other frequencies have decayed. Time-delayed graphs, showing us the room response over time, are called 3D waterfall graphs. The TDA sweeps may be downloaded to Terralink software for 3D analysis. (Terralink Software is included with TDA Firmware purchase on the SP395).

SPFW-SI Speech Intelligibility Firmware (Sencore price $395 - but no charge with these SP395)

Electronic speech intelligibility tests determine whether rooms and public address systems can adequately transmit speech that can be understood. Tests accurately quantify the performance of the sound system and environment in which they operate. Results clearly identify if improvement is needed or if performance criteria is meet.

Electronic measurement of speech intelligibility has evolved in understanding and testing sophistication. There are currently three common testing methods used to gauge speech intelligibility using electronic analysis. They include:
1. % ALCONS (Percentage Articulation Loss of Consonants)
2. RaSTI (Rapid Speech Transmission Index)
3. STI-PA (Speech Transmission Index for Public Address Systems)

Speech Intelligibility testing (RaSTI, STI-PA) involves introducing a test signal into the room and performing electronic analysis at the listening position.

SPFW-TB TechBench Firmware (Sencore price $295 - but no charge with these SP395)

The SoundPro TechBench firmware contains an extensive set of tools for test, measurement and troubleshooting of analog audio equipment. It includes:
1. Amplitude Sweep
2. Distortion Meter THD and IMD
3. Phase Meter
4. Crosstalk Meter
5. Audio Scope
6. Impedance Sweep

SPFW-NC Noise Curve Firmware (Sencore price $195 - but no charge with these SP395)

Easy and fast measuremwent of noise curves including both the numerical value and the limiting band. It also includes Transmission Loss measurements. Includes:
1. NC
2. RC
3. PNC
4. RW
5. STC
6. OITC

SPFW-AS Audio Stethoscope Firmware (Sencore price $95 - but no charge with these SP395)

Allows you to listen to the input signal either flat, or filtered through A, C, any octave band filter, or any 1/3 octave band filter. This makes it very easy to pick out sounds that otherwise would be difficult to hear.

SPSW-TL TerraLink Software (Sencore price $295 - but no charge with these SP395)

Allows remote control of the SP395 from a Windows PC, and live display or downloading of measurements for inclusion in reports.

Sencore's price for a SP395 with all the optional firmware and software modules was $5,065.00. I have available just two refurbished SP395 with 90 warranty from Sencore, all the optional firmware and software modules with Type 2 phantom powered test microphone and cable, universal AC power supply, serial cable, impedance test cable, case and manual for only $2100.00 plus shipping. Ground shipping with insurance in the 48 states is $67.00. Email me for sales to other parts of the world.

Purchase refurbished Sencore SP395 using PayPal. (PayPal Confirmed shipping address in the continental 48 USA states only.)

Sencore SP295

The Sencore SP295 is essentially a repackaged Terrasonde Audio Toolbox Plus in Sencore's case. Like the ATB+ it is an amazingly versatile audio / acoustic test device. It will not walk the dog, but almost anything else you could ask for it does. It has an extendable test microphone, larger display, rechargeable battery, and comes with the Terrasonde Contractor's Firmware loaded and both Sencore and Terrasonde firmware packages on CD. It has balanced and unbalanced input and output connections on XL, 1/4", and RCA connectors, a speaker, headphone output, and RS232 port.

SP295 Standard firmware includes: Sound Level Meter Real-Time Analyzer Energy Time Graph Reverb Decay Time Noise Criteria Speaker Distortion Speaker Polarity Cable Test Signal Generator Level Meters Sample Scope Battery Status Setup & Calibration Transmit Data

Terrasonde Contractor's firmware includes: Sound Level Meter Real-Time Analyzer FFT Analyzer Energy Time Graph Reverb Decay Time Sound Study Graph Polarity Tester Signal Generator Level Meter Frequency Counter Signal / Noise Ratio Sweeps: Amplitude & Impedance Digital Sampling Scope Distortion Meter RASTI % Alcons Noise Criteria Time Code Tools Monitor Amplifier Cable Tester Power Tests Transmit Data Setup & Calibration

Click on the links to download in pdf form the Sencore SP295 Manual or the Sencore SP295C Manual or the Terrasonde Contractor's Firmware Manual.

These refurbished SP295 are only $1000.00 each plus shipping. These are functionally perfect but may have minor cosmetic blemishes. I also have a few refurbished Sencore SP295C with some additional Sencore home theater functions for only $1200.00 each plus shipping. Ground shipping in the 48 states is $32.00. Email me for sales to other parts of the world or for package deals including Analysts firmware.

Purchase refurbished SP295 using PayPal. (PayPal Confirmed shipping address in the continental 48 USA states only.)

Purchase refurbished SP295C using PayPal. (PayPal Confirmed shipping address in the continental 48 USA states only.)

Click here for larger image. Terrasonde Audio Toolbox Plus

The Terrasonde Audio Toolbox Plus is an amazingly versatile audio / acoustic test device. It will not walk the dog, but almost anything else you could ask for it does. The Plus model has a metal case, extendable test microphone, larger display, rechargeable battery, hard shell carrying case, and comes with the Contractor's Firmware loaded and both firmware packages on CD. It has balanced and unbalanced input and output connections on XL, 1/4", and RCA connectors, a speaker, headphone output, and MIDI in and out.

Audio Toolbox Standard firmware includes: Sound Level Meter Real-Time Analyzer Energy Time Graph Reverb Decay Time Polarity Tester Signal Generator Level Meter Frequency Counter Signal / Noise Ratio Sweeps: Amplitude & Impedance Digital Sampling Scope Distortion Meter Instrument Tuner Tempo Computer MIDI Helper MIDI Transmit Time Code Tools Hum Cancellation Monitor Amplifier Cable Tester Power Tests Transmit Data Setup & Calibration

Audio Toolbox Contractor's firmware includes: Sound Level Meter Real-Time Analyzer FFT Analyzer Energy Time Graph Reverb Decay Time Sound Study Graph Polarity Tester Signal Generator Level Meter Frequency Counter Signal / Noise Ratio Sweeps: Amplitude & Impedance Digital Sampling Scope Distortion Meter RASTI % Alcons Noise Criteria Time Code Tools Monitor Amplifier Cable Tester Power Tests Transmit Data Setup & Calibration

Click on the links to download in pdf form the datasheet on the ATB-Plus, and the Contractor's Firmware Manual.

I have two refurbished ATB+ available for only $1500.00 each plus shipping. These are functionally perfect but may have minor cosmetic blemishes. Ground shipping in the 48 states is $32.00. Email me for sales to other parts of the world or for package deals including Analysts firmware.

Purchase refurbished ATB+ using PayPal. (PayPal Confirmed shipping address in the continental 48 USA states only.)

Click here for larger image. Terrasonde Audio Toolbox 1

The ATB-1 has all the capabilities listed for the ATB-Plus above, except the case is plastic, the battery pack is external and takes AA cells, the display is slightly smaller, and the microphone is built-in. While the ATB-1 came new with only the Standard Firmware, this refurbished ATB-1 comes with the Contractor's Firmware loaded and both versions of the Firmware on CD. The CD contains the manuals and all accessory programs.

Click on the link to download in pdf form the Contractor's Firmware Manual.

I have one refurbished ATB1 available for only $950.00 plus shipping. It is functionally perfect but may have minor cosmetic blemishes. Ground shipping in the 48 states is $30.00. Email me for sales to other parts of the world or for package deals including Analysts firmware.

Purchase refurbished ATB1 using PayPal. (PayPal Confirmed shipping address in the continental 48 USA states only.)

Terrasonde Digital Audio Toolbox

The Terrasonde Digital Audio Toolbox brings the same sort of power to testing digital audio devices and interfaces as the regular Audio Toolbox line brings to audio and acoustic testing. It provides AES3, SPDIF, wordclock and Toslink/ADAT inputs and outputs, video sync input, and headphone and speaker outputs for monitoring digital audio signals. There is a DB-9 connector that works as an RS232 connector for software updates and computer interfacing, as well as an ADAT sync source.

Digital Audio Toolbox tools include:
Transparency Test
Bitstream Analyzer
Lock Tests
Bitscope
Latency Test
Digital Watchdog
Jitter Meter
Clock and Sample Counter
Distortion Meter
Digital Signal Generator
Digital Cable Tester
Level Meter
Dialog Level
Sample Rate Converter
Sony 9-pin Tester
Pass Mode
Setup & Calibration

Click on the link to download in pdf form the The DATB User's Manual.

Email me for DATB availability.

Analysts Firmware is now shipping.

The SP295, ATB-PLUS, and the original ATB-1 are able to run the optional Analysts Firmware. Analysts firmware adds Time Delay Analysis which is based on Dick Heyser's Time Delay Spectrometry (TDS), STIpa the new faster way to measure Speech Transmission Index (STI) without the limitations of the older RASTI technology, and multi-band RT60 measurements to allow measurement of all bands of RT60 in a single measurement, to the Audio Toolbox. It comes with a version of TerraLink for plotting the results including 3D waterfall graphs on your PC. For best results you will want to use a quality external mic like the SoundFirst SF101, or at least the Josephson C550H with this software. $400.00 Email me at Sales@AudioToolbox.US to order.

Sample TDA waterfall screen.

For Precision Measurement Microphones and Wireless links click here.

Email me at Sales@AudioToolbox.US. I accept all major credit cards and eChecks through PayPal, or you may pay by Money Order sent to the address below.

Mailing address:
Ray A. Rayburn
1630A 30th Street #163
Boulder, CO 80301-1014

Back to www.Superlux.US Home Page.

Back to www.SoundFirst.com Home Page.

Back to my Technical Page.

Last Edited 6/14/2010

Entire Site Copyright © 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by Ray A. Rayburn. All rights reserved.
Sound First™, SoundFirst.com™ Superlux.US™ and AudioToolbox.US™ are Trademarks of Ray A. Rayburn