SP295
SP295 Audio Analyzer  


 

SP295 - SoundPro

Properly tune and balance any audio system in minutes with Real Time Analyzer.
Signal Level Meter accurately measures any audio input.
Sound Pressure Level meter to ensure proper level balancing of each speaker.
Built-in Distortion Meter for checking speaker distortion.
Use Energy Time Graph to identity and correct uneven sound dispersion in the room.
Polarity Tester checks speaker and system polarity.
Analyze background noise with Noise Criteria test.
Quick, dynamic Cable Tester finds opens, shorts, or crossed cables.
All the output Test Generator signals you need, in one portable package.
Built-in audio bandwidth digital Sample Scope for signal monitoring.

SPECIFICATIONS
Sound Pressure Level
Method: Measures ambient sound energy levels at microphone input.
Accuracy: ± 0.3 dB SPL, steady state
Resolution: 0.1 dB from 30 –130 dBA with supplied mic.
Weighting networks: ANSI Type 1
A-Weighted, B-Weighted, C-Weighted, Flat
Averaging: ANSI Type 1
Slow – 1000 ms exponential decay, time-averaged SPL
Fast – 125 ms exponential decay, time-averaged SPL

Real-Time Analyzer
Method:Plots sound energy levels vs. octave band filtered spectrun.
Band Filters:Octave, 1/3 octave, 1/6 octave, 1/12 octave
Filter Accuracy: ± 0.20 dBu at band center frequency
Averaging:1 sec, 3, sec, 6 sec, 10 sec, 30 sec, 60 sec
Display Range:35 dB or 17 dB window within 25 dB to 170 dB range,
adjustable in 5 dB steps
Level Accuracy: ± 1.0 dB with supplied mic

Energy-Time Graph
Method:Plots impulse decay sound energy levels vs. time or distance.
Graph y-axis units:ms, ft, in, cm, m
Display Accuracy: ± one graph pixel.
RT60 Calculation Accuracy: ± 50 usec
RT60 Display Resolution:1 ms

Noise Criteria
Method: Implements ANSI S12.2-1995 for comparison of background noise level octave bands to standard noise criterion curves.
Displays: NC curve, Limiting Band, Octave Band Levels

Speaker Distortion
Method: Compares level of speaker output harmonics and noise to fundamental test frequency.
Display Range: 0.02% to 50% THD+N
Accuracy: ± 5%
Test Frequencies: 63 Hz, 125 Hz, 250 Hz, 1 kHz, and 2 kHz

Cable Test
Method: Applies digital wiremap test to check for opens, shorts, crosses, and analog transmission test to compare transmission loss at 1 kHz and 20 kHz.
Connector Types Tested:
RCA, XLR, _" balanced and single-ended, all XLR to _" combinations

Speaker Polarity
Method: Shows polarity of closest speaker’s mid-frequency waveform.
Range: 0to 500 feet, speaker to SoundPro.

Signal Generator
Signals: Sine Wave, Square Wave, White Noise, Pink Noise
Distortion: <0.1%
Output Frequency Range: sine wave 11 Hz to 22 kHz, square wave 11 Hz to 1.6 kHz
white noise 10 Hz to 20 kHz, pink noise 10 Hz to 20 kHz
Output Level: sine wave, –78 dBu to +17 dBu
square wave, –78 dBu to +17 dBu
white noise, –78 dBu to +2 dBu
pink noise, –78 dBu to 0 dBu
Level Accuracy: ±0.05dBu @1000 Hz, ±0.10 dBu 16 Hz to 20 kHz.
Resolution: Fine: 0.05 dB from –9.95 to +9.95, 0.1 dB outside this range
Coarse: 1.5 dB

Level Meters
Display Types: Digital left and right line input levels
Analog bar graph and digital left and right line input VU levels
PPM line input levels
Inputs: Line input connectors
Accuracy: ± 0.5 dB, 20 Hz to 20 kHz, +40 dBu to –85 dBu

Sample Scope
Sample Rate: 48 kHz
Displays: mv vs. time (line in), mPa vs. time (mic in), or X-Y phase display
Display Amplitude: 15.6 – 1000 mv/div (line in), 7.8 – 500 mPa/div (mic in)
Accuracy: ± one pixel of display, 20 Hz to 20 kHz

General
Display: 64x128 pixel super-twist LCD w/LED backlight
Size: 10 3/8" x 6" x 3 _" (HWD)
Weight: 3 lbs. 5 oz., 1502 g.
Battery: 6 volt rechargeable lead-acid cell provides 2-4 hours of service
AC Adapter/Charger: 6v @ 800ma
Non-Volatile Memory: 0 graph data storage locations


Inputs:
Connector(s) Impedance Range Minimum Level Maximum Level
Microphone N/A MicL 30 dB SPL 95 dB SPL
MicH 70 dB SPL 130 dB SPL
XLR 40k ohms ExtL -95dBu -35dBu
Ext –75dBu +7dBu
RCA Phone 20k ohms ExtH –40dBu +40dBu

Outputs
Connector(s) Impedance Polarity
XLR balanced mono 300 ohms + (hot) on pin 2
balanced mono 300 ohms + (hot) on tip
RCA unbalanced mono 150 ohms + (hot) on tip
unbalanced stereo 300 ohms + (hot) on tip and sleeve

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