• Item: Full range horn  
  • Type: Audio nirvana classic 8  
  • Posted: 9 May 2015  
  • Builder: rendoman  
  • Country: Italy  
  • Comments: 6  

The beasts

Big double horns made of steel plate, oxy-acetylene welded, treated with 3M body shutz and best quality italian granular cork (made from fine wine corks).
Horns are decoupled from frame with silent block, rubber and cork.

Driver: Audio nirvana classic 8 fullrange (single cone).
Binding post from solid brass machined with lathe and milling machine, delrin insulators, silver wire for internal wiring.

I built these speakers in 4 months for personal pleasure.

Efficency is high, approximately 110dbwm, the little ecl82 amp (1,6w triode connection, diy output Irons with high primary inductance)is really overpowered for listening session at home.

My current system:

- diy Onken 360L, Eminence delta 15LF speaker (29-150hz).

- Big horns (150-13000hz).

- Eminence apt 150 tweeter with custom tractrix horn i made with lathe from solid 75mm aluminum. (13000-20000hz)

Active crossover : Behringer DCX2496
Amplifiers: ecl82 se triode, lm3886 gainclone, 2024 amp for high freq.

currently i'm breaking in the new horn.
Hope you enjoy :)


  • DorinD
  • 14 May 2015 at 04:01AM
  • These fine horn-speakers of yours are among the finest I ever seen! Congratulation for your very creative work which may also bring new ideas to other DIY's.
  • rendoman
  • 15 May 2015 at 07:13AM
  • Thank you very much for your appreciation!
  • ecata
  • 5 June 2015 at 09:48AM
  • bel lavoro, mi piacerebbe ascoltarle.
  • rendoman
  • 6 June 2015 at 08:47PM
  • grazie! spero di finire (e tarare) l'impianto nel più breve tempo possibile, tra moto e altre passioni il tempo da dedicare è davvero minimo :)
  • Auredes
  • 11 October 2015 at 02:28AM
  • Nice work. How do they sound? Any Phasing problems? I`m working on a similar design (Horn/OB Hybrid) and would love to see more on your awesome project.
  • giacomini
  • 23 January 2016 at 02:59PM
  • Bravo bravissimoo:))

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