2 would do the job,1 horn would do the job,but no,they went ballistic :P and then drive it on tube amps and cdplayers with no transistors in them or something :P

sounds like genuine enthusiasts :P
and then after all that,you can only listen to it at 110db for short periods ,or youl be making alot of bathroom visits,

The more amazing it is,the less practical :-D