: Want to Sell
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December 7, 2009, 09:42 AM
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For Sale: Beyerdynamic DT770 Pro 80ohms
Amazon.com: Beyerdynamic DT 770 Pro-80 Closed Studio Headphones: Electronics
* Transducer type: Dynamic
* Weight (without cable): 270 g
* Frequency response: 5Hz - 35kHz
* Nominal impedance acc. to IEC 60268-7: 80 Ohm
* Nominal SPL acc. to IEC 60268-7: 96dB
* Nominal THD acc. to IEC 60268-7: < 0.2%
* Power handling capacity acc. to IEC 60268-7: 100 mW
* Sound coupling to the ear: Circumaural
* Ambient noise isolation: approx. 18dB
* Connection: Gold-plated stereo jack plug (3.5 mm) and 1/4" adapter (6.35 mm)
* Length and type of cable: 3 m / straight cable
* Nominal headband pressure: approx. 3.5 N
A barely used pair of DT770 80 ohm circumaurals, they've been burned in. They are the 80ohm version, which doesn't require an amp as much as the 250 ohm version. I have since sold the lambskin earpads, so it comes with stock cloth earpads instead. The box, headphones and 1/4 plug adapter are included.
Looking for $160.
For Sale: Meier HeadSix AMP @
€120 Euro = $185+ CDN
Needs little to no explaination, this portable amp drives all IEMs and many headphones very well. Basically a Meier Corda XXS, but a limited Head-Fi only amp, only 600 were ever made.
Weight without battery: 100 gr.
Measures: 9.3 x 4.7 x 2.2 cm
Supply voltage: 6 .. (9) .. 12 Volts DC
Mean current uptake: 7 mA
Maximal amplification (1 kHz): 4 / 17 dB (low/high gain)
Input impedance: 13 kOhm
Output impedance: < 1 Ohm
The unit runs from a single 9V battery and internally the supply voltage is used to create a pair of +4.5 and -4.5V power lines.
Alternatively external power supplies can be connected with supply voltages between 6V and 12V DC. The external supply voltage is internally splitted to create a pair of +3..+6V and -3..-6V power lines.
The total buffer capacity is 4000 uF to lower the effective battery impedance.
For amplification two single AD8610 opamps are used for maximal sonic performance.(No dual or quad-opamps!)
The 3.5 mm sockets are silver-plated.
Inside the signal path only metal-resistors and high-quality film-capacitors are used (polypropylene).
The enclosure is made entirely of aluminium.
The Amp does not come with anything but the Amp itself, but I can toss in the 9V battery it was using anyways.
Looking for $160.
With all the headphones, will clean and disinfect them before shipping/selling it.
I'm located in Toronto and Markham, can deliver it within the GTA(reasonably within) for free, or pickup downtown on certain days or in Markham for certain days. Basic untracked Shipping will be free, adding tracking/expedited/ExpressPost will cost whatever Canada Post charges, willing to pay half.
Last edited by coriolis; January 15, 2010 at
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