Not sure on stock levels at stores, because it seems to be one of their deleted lines, not on the website.
At Officeworks, in store only, these are a bargain
There were only 3 of each at my store.
Sennheiser HD518 - $60, RRP somewhere near between $150-$200
https://en-au.sennheiser.com/audio-headphones-stereo-hifi-tv…
- Removable cord
- Not too tight
- Nice full bass
Still reasonably good Mids and Highs.
Needs an adapter or buy another cable for 3.5mm (adapter comes with it)
Sennheiser HD280 PRO - $75 RRP $179
https://en-au.sennheiser.com/hd-280-pro
- Coiled Cord
- Foldable
- Does not leak sound
- Bit tighter on the head
- More accurate sound reproduction, less bass, clearer vocals strings etc.
I bought both to test them, to see which one I wanted more. Tested them both with an AMP, and Computer and Phone.
I liked the HD518s better, more just because they sounded more full, make you smile sound. Sounded better on the phone, which I will use them most on.
If you were doing audio engineering, or running a dedicated amp, maybe get the HD280s.
Each to their own. I would have been happy either way I think.
How long are the audio cords on both of them?