Philips vintage 6" Full Range Speakers AD3700AM OTL 800 Ohm

$34.97 $49.95

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  • Estimated Delivery:Oct 11 - Oct 18

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have for sale vintage Philips AD3700AM 800 ohm OTL Alnico FULL range speakers.  The speakers sound very nice.  They have a warm sound to them. Philips invented the OTL system, basically to omit the output transformer, UGT.  This saved production cost.  The advantage of OTL is that there is no output transformer, so there is no distortion. Your amplifier needs an 800 ohm output, these speakers will not work for a normal amplifier. These speakers were taken from radio's.  The speakers were a set from the begin.  They are a pair. Each pair have the same date code.  The first number is the week, the second the year. The sale is for 1 pair, that is 2 speakers.  These speakers have wear and damage to cone.  I tested with an ohm meter, and see the results.  These speakers will measure 800 ohms @ 1000kHz. The measurements taken was with an multimeter, and then you get around 600 ohms.
800 Ohm impedance
3 watts power
Frequency range 85 - 18,000 Hertz
15 CM or 6 inch Diameter The AD3700AM can be used with an open baffle system, closed system, whatever you want.  When you opt to buy 4 pairs, you can do a line source.  2 in series, 2 in parallelly.  I will inspect the speakers again before shipping.  I ship world wide.  Your country might charge you an import fee.  Import fees are for the buyer. Due to shipping cost, I do not accept returns. Shipping one pair world wide is $35 with track and trace. Shipping rate in Europe, ask.  All buyers pay actual shipping costs, there are no packing fees.  Too much paid shipping will be returned to buyer. 
Testing Philips AD3700AM 800 ohm OTL speakers
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