INFINITY SPEAKERS Alpha 4020

Description

Specifications

Here are the known technical specs:

Features & Build Details

• Woofer Cone Material: Injection-molded polypropylene. This tends to offer a good balance between stiffness & weight, which helps with midbass clarity and durability. my.infinityspeakers.com+2infinity-caraudio.com.au+2

• Tweeter: PEI balanced dome tweeter (soft or polymer-type) for producing higher frequency detail. my.infinityspeakers.com+1

• Design Aesthetics: Part of the “new Infinity ID” / updated design style under the Alpha line. Looks modern. infinity-caraudio.com.au

• Build / Reliability: These speakers go through environmental testing (heat, cold, vibration, UV exposure etc.) to ensure reliability. Alpha series generally tries to offer ruggedness even at lower cost. infinity-caraudio.com.au+1

What to Expect in Real-World Performance

Strengths

• Because of modest size (4″) and reasonable sensitivity, these speakers are good for replacing small stock speakers where space is limited (like tweeter locations, small door panels, dashboards etc.).

• Good clarity in mids and highs — vocals, instruments etc. will sound noticeably better than many basic factory speakers, especially with a clean signal.

• Enough power for everyday use: 25 W RMS is not a lot, but sufficient for moderate listening if your head unit or amp can deliver good clean power. It will run without distortion at normal volumes.

Limitations

• Low bass limit is around 75 Hz — so you won’t get deep bass from these; for bass below ~70 Hz, a dedicated subwoofer will be needed if you like it or if music demands it. infinity-caraudio.com.au+1

• Because of small size and limited excursion (how much cone can move), the loudness at very low frequencies or heavy bass passages will be constrained.

• Peak power ratings (175 W) are short bursts; sustained power use well above the RMS rating might cause distortion or stress.

• Installation matters: sealing, wiring quality, mounting depth etc will affect how good these sound.