“ These are amazing. If you can get them for a low price, do so. They are a bit uncomfortable, so you might not want to use them for long periods of time. Their clarity is fantastic though, the bass while not being big in quantity is extremely accurate and with a decent amp (I'm using the 300 Ohm version of the headphones) it is just fantastic in quality. Despite being a closed headphone...” --FirsToStrike
From an old MB Quart brochure (circa late 80s): The Quart Phone 50 Dynamic, semi-open headphone. Coupling: circumaural. Frequency response: 10 Hz - 22 kHz. Nominal Impedance: 120 ohms (x2). Sound Pressure Level: 96 dB. Rated Power Handling: 0.1 watt. Distortion <0.5%. Weight (without cord): 245 grams.
MB Quart QP400 is top of the line semi-open headphone from the last MB Quart lineup. QP400 have cardamatic suspension that together with soft plush earpads make them very comfortable.
SYLVANIA SYL-WH930CS Wireless RF Headphones in Clamshell Packaing
The SYL-626 are heavy duty headphones designed for serious listeners. With powerful 40 mm driver speakers and 20-20,000 frequency response. Also includes a 6.3 mm adaptor. Great Value
The SYL-185 Contour Earbuds from Audiology are great for those looking for enhanced sound and comfortable fit in an affordable earphone. This product comes with a 15mm driver, frequency response of 20-20000Hz, impedance of 32 Ohms, sensitivity of 102dB, max power of 50mW and a cord length of 1.2 meters. Perfect for ipod / mp3
The SYL-NCE745 Sylvania Noise Canceling Earphones, are the best valued Noise Reduction earphones on the market. These high quality earphones are the ulitmate in travel earphones. They come with built in neckstrap, carry pouch, airplane adaptor plug, extra ear cushion tips, and a free AA battery for immediate use.
The Sylvania SYL-NC735 are high end, high quality Noise Canceling Headphones. Foldable design for convenient carrying, storage, and travel. Extra padded earcups for ultimate comfort. Includes carry pouch and airplane adaptor plug. Perfect for on the plane. Has an integrated battery compartment in earcup.
The Sylvania Wireless headphones are the best valued RF wireless headphones on the market. Listen to all your favorite shows without disturbing anyone or being disturbed. Say goodbye to all those messy tangled cords. Works with TV's, Stereos, Computers, MP3 and personal audio. Also great for doing chores around the house or light exercising. Comes with all the accessories you need to get...