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FS: pair of new Lambda TD-15S sealed box woofers

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T

taloyd

Member
Joined 2004
hello,

I have two unused (unmounted) Lambda TD-S series 15" woofers. I was saving these for a project that has changed directions so many times that they are no longer needed (in the final ultra-super-mega iteration of the Speakers of Doom).

Asking $350 shipped in the continental USA for both. These drivers are considered an upgrade to TAD drivers... they have a legendary reputation among those who have them.

Specs (from the now-defunct Lambda site):

Fs 22.8 Hz
Qms 3.87
Qes 0.41
Qts 0.37
Vas 467 Liters
Cms 0.45 mm/N
Mms 108 grams
Sd 855 cm2
Rms 4 Kg/S
Bl 14.1 T/m
Re 5.3 ohms
Z 8 ohms
Le 0.3 mH
Pe (nom) 300 Watts
Pe (max) 500 Watts
Pe (transient) 1000 Watts
"no" 1.31 %
1WSpl 93.4 dB
Air Gap 18 mm
VC Length 38 mm
Linear Xmax 10 mm (peak)
Mech Xmax 20 mm (peak)

Part# TD15S
Size 15"
Motor TD (overhung)
Magnet 120oz (3.4Kg) Ceramic 5
VC diameter 51mm
VC Former Black Anodized Aluminum
VC Wire 2 Layer Copper Roundwire
Basket Cast Aluminum 12 Spoke
Cone Paper Based
Cone Profile Curvilinear
Surround Doped Foam, 2 layer treatment
Dustcap None - Phase Plug
Spider Medium stiffness Nomex
Faraday Copper
Pole Vent No - Phase Plug
Terminals Gold Plated Binding Posts
Weight 23lbs
 
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