Plantronics AP15 VistaPlus Audio Processor

Modular Audio Processor Amplifier for H-series Headsets
$112.00 or less from an Authorized Plantronics Distributor

Delivering precision audio accuracy, the VistaPlus™ AP15 is specially designed for noisy call centers requiring the highest sound quality. The AP15 features multiband compression and DSP hardware that improve intelligibility by correcting for signal loss anywhere in the bandwidth. AudioIQ® technology improves call accuracy by reducing noise and keeping incoming calls at a consistent and comfortable listening level. Echo cancellation and noise reduction offer superior transmit sound. With its unique combination of audio-clarifying technologies, the AP15 helps boost contact center performance through improved agent productivity and customer satisfaction.

Plantronics AP15 Reviews: (Write Your Own Review)

Good but not perfect. - John M from Las Vegas NV
This amplifier is fantastic and I would buy it again but it's not quite perfect. The best thing about the unit is the noise cancelling. It's absolutely perfect. Also I like the overall design. But there are some things about it that could use some work. First the incoming sound is continually optimized so to have a constant output. This takes getting used to. Also the sound level doesn't go high enough in my opinion. But once these kinks are worked out it will be ideal. Until then once you are used to the quirks in the sound it's a great amp.

AP Amplifier. - Mark P from Spokane, WA
I needed an amplifier and it works great.  Not too expensive to fix the problem.  Thanks for the help I'll be back.