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Cyber Acoustics ACM 8440

alaTest has collected and analyzed 2 reviews of Cyber Acoustics ACM 8440. The average rating for this product is 3.5/5, compared to an average rating of 4.0/5 for other Headphones for all reviews. Reviewers are impressed by the comfort. The price is also mentioned favorably. Opinions are divided on the noise isolation, and many are negative about the usability and size.

price, comfort

sound, size, usability

On average, users rate this product 70/100.

Review analysis

(Based on 2 reviews)

User Reviews  

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Showing 1 - 2 of 2 Show Reviews: in English

Consumer review by: j1mm (

Good While it Lasts


When i bought this i really wasn't expecting much. I totally understand that i got what i paid for. For the price (i will say again) they are 100% worth it. However after month #3 the other side broke. i plan on spending a bit more money on sound...

First off, these are really nice earphones for the price. I was in the market for a new pair of speakers when these caught my eye. Mainly i bought them for the price and the title "sound canceling". Comes with a nice bag, and has volume control built...

after the first month the twistable part of the headphone broke. Easy to fix with glue... but it wouldn't turn anymore. Although it comes with a warrenty the effort put into sending it back was not worth the price originally paid. Also there is a sound...

Oct, 2006

Consumer review by: N/A (



In the train, my headphones look massive compared to the little white ear buds of the ipod people. Oh well my sounds come out juicy sweet in the subway, no need to cover the ears to squeeze every last drop of sounds like the ipod people (Actually I'm...

I was looking for a new pair of headphones to replace my aiwa noise canceling headphones. I needed something that is comfortable on my ears...and this was the answer to my search. I was a little hesitant at first because i never heard of these...

The only con is when i turn on the noise cancelling feature...i hear some white noise on the left side of my ear. I thought the microphone was loose, so i opened the left side of the speaker enclosure and the microphone was securely glued in place....

Aug, 2006

Product Specifications

These classic designed, active noise-canceling headphones deliver superb sound. The 40mm neodymium speakers ensure excellent audio quality whether used with portable devices or a conventional home stereo. The 6' shielded cable adds convenience to these ultimate audio headphones.

Audio Output

Connectivity Technology:Wired
Headphones Form Factor:Ear-cup
Headphones Type:Binaural
Product Type:Headphones
Response Bandwidth:20 - 20000Hz
Sound Output Mode:Stereo

Audio System

Recommended Use:Home audio system / Portable audio system / Professional audio system


Manufacturer:Cyber Acoustics
Packaged Quantity:1
Product Line:Cyber Acoustics ACM

Remote Control

Type: None