And, as always, we measure everything we sell and provide response plots to you.
All Things Audio
 
WELCOME TO NORTH READING ENGINEERING
North Reading Engineering is a Massachusetts certified business founded to provide engineering services to those engaged in home and professional audio.  We provide crossover network solutions, loudspeaker design, vintage amplifier restorations and measurement services of loudspeaker systems, individual drivers and amplifiers.  We work closely with home audio enthusiasts and have developed a number of crossover solutions for a wide range of unique sound system challenges.  We design, computer optimize and prototype audio filters and provide a complete package including all electrical and acoustic response plots.  We also work with manufacturers engaged in high fidelity audio for residential or control room applications.  If you have a project that you would like us to consider, email us here.
CUSTOMIZED CROSSOVER NETWORK DESIGNS 
Audio system design is unique and requires understanding across a range of disciplines including mathematics, electro-acoustics, magnetics, physics of sound propagation, analog circuit modeling and simulation.  We measure, design, build and verify acoustic performance of our networks using a wide range of tools including analog circuit simulators, high sampling rate acoustic analyzers and precision measurement microphones.  We request that drivers be provided to our location for measurement.  Only then can the actual results be substantiated and design iterations made.  We are able to perform measurements in quasi-anechoic conditions using near and far-field techniques with access to a large indoor facility that allows ground-plane measurements to 4m. Networks are then designed to obtain the correct acoustic response.  Measurement service for a filter project are usually done without fee since it provides us with the opportunity to develop potentially new products or measurement techniques.  We're price competitive and will work with individual audio enthusiasts or experienced professionals.

VINTAGE McINTOSH AMPLIFIER REPAIR AND RELIABILITY SERVICING
Do you have a 70s-era McIntosh amplifier or integrated amplifier that hasn't been checked for performance since Dave O'Brien of the famed McIntosh Amplifier Clinics last looked at it?  If so, we have the experience, tools and test instrumentation to properly assess the health of your amplifier and make it a lot better.  More information on our servicing can be found here.


V1_dual_atten
precision step attenuator
Iwata_test
Custom_net
distortion