HP Poly SHS 2470-02 PTT Amp LEMO FGG.2B.310 3.01K OHM ADD (REF SHS 1890) TAA

Product Overview

AI-generated summary

I’m going to be blunt: at £173 ex-VAT for a “PTT amp” add-on, this is only good value if you already own HP’s compatible SHS platform (and know you need this exact LEMO/impedance match). These kinds of comms/audio accessories tend to be picky about connectors and electrical compatibility—so if you’re trying to solve a general audio problem or “upgrade anything,” you can easily end up with something that plugs in but doesn’t behave properly (level, feedback, sidetone, etc.). If you’re integrating into an existing HP/SHS setup, though, you’re paying for reliability and reduced faffing.

Who should buy it? Teams running HP SHS audio systems and needing the correct push-to-talk amplification/interface component for their workflow—e.g., call-centre/command-room style rigs, professional comms environments, or any install where the cabling standard is already locked down. Who shouldn’t? Anyone building a one-off system, mixing different vendor hardware, or buying based on “it’s a PTT amp” alone—because there’s no guarantee it’ll be the right impedance/connector pairing for your setup, and testing time can cost more than the part.

If you can confirm (from your current BOM/install guide) that the impedance and LEMO interface are exactly what this reference is meant to replace, it’s a sensible, low-risk purchase. If you can’t, I’d pause and get the exact compatibility details first—otherwise this £173 can turn into a “spare that never gets used” real fast.