ULTRASONE PROline 550 S-Logic Surround Sound Professional Headphones Review

Average Reviews:

(More customer reviews)These headphones should fit right in between the $100 and $200 range. At the time they were introduced they sold for about $230.

These headphones support spacial cuing in the form of specially placed Mylar cones behind a metal barrier that also serves as a electromagnetic field barrier. Ultrasone claim that mechanism provides the head transfer cues needed to make the headphones sound more like a set of speakers.

While I didn't find the headphones sounded like a set of speakers, I do feel that sound is more natural and robust than with direct placement headphones since it is focused on the outer ear rather than directly on the eardrum. However, I didn't notice any less fatigue while listening than with any comparable set of headphones.

This is a set of cans that will make you notice things in your music that you didn't notice before. The soundstage is strong and present but not too pushy.

If you're looking for a comparable product at a lower price you might try the Grado SR60 headphones.

You really need a good headphone amp for use with these headphones to get the full dynamic range from them. There's a guy that sells some nice burr-brown portable amps from his ebay store that are inexpensive and work well with these cans.

As far as looks, this headset looks very large on your head but is very aesthetically pleasing if you like blue. If you don't like blue, just listen and try not to notice your reflection.

Pros:
* Very robust hardware.
* Detachable screw-in cable means less chance you'll have to return the headphones for repair after a lot of use due to cable detachment.
* Comes in a very nice zippered case with a spare set of ear pads, both straight and curly cords and a 1/8th" to 1/4" headphone plug adapter.
* Sound is very robust with deep lows and crisp highs.
* Very nice with bassy, bouncy music such as trance, downtempo, drum & bass, house.
* Nicely padded on the head and ears.
* Although the headset is quite large overall it can be folded in on itself for transport so it takes up much less room.
* The unique dark blue colour of this headset is very attractive and noticeable.
* The huge shiny silver logos on the cans are pretty neat too.
* Gold electroplated connectors all around.
* Generous, long, beefy cables.

Cons:
* Midrange is a little cramped if used directly with an iPod rather than going through a headphone amp.
* Ear fatigue is a little higher than with some other headphones (including other headphones in this set's line) due to higher output pressure.
* A bit heavy on the head.
* Good isolation from external noise (I use them on the subway).
* Connector cable plug is really long when paired with the adapter needed to use with a portable device so there's a risk of wrenching the headphone port on your sound source.
* Folding the headset up requires you to unscrew the headphone cable.
* Might be too bassy for discerning audiophiles who are critical about upper-mid to high end frequencies.
* For some reason the headphone case is designed to fit the headphones in their unfolded state, which makes the case much larger than necessary.

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Product Description:
The PROline 550 is designed as an improvement on the immensely popular HFI-550. Featuring the same 50mm mylar driver and loud, punchy sound, the PROline 550 also features detachable cables and speed switch earpads, and S-logic(tm) natural surround sound. The larger, circular earcups produce a sound that is wider and even richer than the HFI-550 along with great bass response and great isolation. S-Logic- Natural Surround Sound:S-logic- uses decentralized driver positioning to utilize the pinna of the ear in the manner it is used in everyday life, reflecting the audio signal off the surface of the outer ear in different directions before entering the auditory canal.This results in a very natural spacious three-dimensional sound.S-Logic- is the only headphone system which includes your entire sense of hearing.Safer Listening: Because the S-Logic- technology does not aim the auditory signal directly down the ear canal but at the pinna, pressure to the ear drum is decreased by up to 40% (3-4dB) for the same perceived loudness.This significantly reduces the risk of hearing damage and ear fatigue - an absolute must if you spend a lot of time in headphones.ULE technology:The ULE technology was systematically developed by ULTRASONE for users who spend many hours in the headphones.All headphone drivers produce low-frequency magnetic fields.In response, ULTRASONE developed a special MU Metal shielding (ULE technology) to reduce the radiation by up to 98% compared to ordinary headphones. Tech Specs:Closed headphone,S-Logic- Surround Sound,Frequency range 10Hz- 22kHz,Impedance 64 Ohm,SPL102 dB,Driver 50mm mylar,Reduced Magnetic Emissions Standard,ULE Standard,2 yr warranty, www.ultrasoneusa.com.PROline box includes:Two detachable cables one coiled and one straight,Straight length 3m (approx. 9'),Coiled <3m with gold plated jacks.,6.3mm (1/4) to 3.5mm (1/8th) gold plated adapter included.,Spare pair of speed switch earpads,Demo CD,Carrying bag.

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