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SOLD - FOR SALE: ETI 4000 4way speakers

Item #649394112
Info: ETI 4000 4way speakers

Asking Price:
AUD $150.00
Payment method: Cash, Paypal, Money Order, Money Wire
Shipping weight: 44.00 (kg) Calculate Shipping
Shipping Dimension: 365.00cm x 545.00cm x 835.00cm
Condition: 8 - Very good (?)
Date Posted: Nov 20, 17 8:14pm (PST)
Edited: Jan 07, 18 5:52pm
About Seller: QLD, Australia
Product Brand: ETI 4000
Product Model: floor speakers 4way
Days in System:48

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** This Ad is Marked as SOLD by seller and cannot be responded to. **

I have 1 pair of ETI 4000 speakers for sale.
The history of the speakers
Way back in 1981, a guy by the name of David Tilbrook (chief technical boffin working for electronics magazine Electronics Today International) designed a 4 way speaker that aimed to deliver a high quality product that challenged (in both price and quality) commercially available units (targeted at those costing 3 to 4 times the cost of this kit). Many kits for this speaker design were sold – the kit reference was ETI 4000/1.

The configuration
The design uses all Philips drivers, a whopper of a cross over (or so I thought at the time), with both woofers housed in their own sealed enclosures. The make up of the speaker is as follows:
Model and cross over frequency
Tweeter AD 01610/t8 3000 hz
Mid range AD 02161/sq8 750 hz
Mid woofer AD 70601/w8 150 hz
Woofer AD 12250/w8
Cross over is second order (12db slope). I’ll post the circuit diagram for the crossover, together with a picture of it, in a subsequent post.
The mid woofer has its own sealed enclosure of 26 litres and the woofer a sealed enclosure of 80 litres. I built the boxes with two layers of 19mm particle board (MDF did not exist in those days). Lots of glue and screws. Real Marri timber veneer all round and solid timber Marri top.
weight 44kg each
Height 835cm
Width 545cm
Depth 365cm
be prepared for a heavy lift.
cabinets need new speaker cloths to the front otherwise all good


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