My old Beyerdynamic DT-331 open back headphones are for sale. Had them quite a few years, but they still hold their own ! Ear surrounds are in reasonably good nick, with just one very small tear on the inner foam - makes no difference to the sound. They do need to be driven a bit harder than some to get the best out of them, most modern amps will have no problem, but some PC outputs may give a quieter volume. Looking for just 35 quid inc UK 2nd class signed for post or collect for £30 NN3 Northampton Spec : Transducer type Dynamic. Operating principle Open Frequency response 20 - 20,000 Hz Nominal impedance 40 Ohms Nominal SPL 86 dB Nominal THD < 0.3% Power handling capacity 100 mW Sound coupling to the ear Circumaural Weight without cable 210 g Cable length 2.5 m / straight cable on both sides Stereo mini jack-plug (3.5 mm) & 1/4" adapter (6.5 mm) Price and currency: 35 Delivery: Delivery cost is included Payment method: Paypal or cash on collect Location: Northampton Advertised elsewhere?: Advertised elsewhere Prefer goods collected?: I have no preference ______________________________________________________ This message is automatically inserted in all classifieds forum threads. By replying to this thread you agree to abide by the trading rules detailed here. Please be advised, all buyers and sellers should satisfy themselves that the other party is genuine by providing the following via private conversation to each other after negotiations are complete and prior to dispatching goods and making payment: Landline telephone number. Make a call to check out the area code and number are correct, too Name and address including postcode Valid e-mail address DO NOT proceed with a deal until you are completely satisfied with all details being correct. It's in your best interest to check out these details yourself.