BG Neo 10 (Neo10) vs. Alcons RB401, SA8535, ESS AMT, or Beyma's TPL-150

tiefbassuebertr · 05:33 PM

The most obvious difference from Bohlender-Graebener's Neo10 to the other in the headline mentioned HF ribbons is the lower efficiency (disadvantage) and the extended frequency aera down to 300 Hz (advantage).

Thus actually I cannot compare this ribbon transducer with all the others.

Nevertheless it would be interesting to know more about the various audible impressions between both categories.

In case of two way systems the low frequency transducer has low requirements concerning the aera between 300 until 1500 Hz by use of the Neo 10. Thus it is more easy to find appropriate bass-driver models therefore.
OTOH - also up to 2000 Hz there are a lot of drivers available with very good acoustical midrange behaviour, even by the '10 and '12 size (Fane's Colossus and Precision Devices' PD series are examples).

So the actually question for me is follow:
Are there residual possible benefits in case of the Neo 10 compared to the other models (from the view of audible perception, not from the view of measured results like THD and frequency response) ?

The increased attenuation in the upper frequency aera is theoretical also a disadvantage (strictly speaking, one must introduce an additional UHF tweeter) but it is not of very great significance in real life without additional tweeter - so I think.

Here a small URL collection from all ribbon/air motion transducers:

Bohlender-Graebener Neo10
BG Radia - The Power of Clarity
http://www.lautsprecherbau.ch/shop2/...t/BG_Neo10.pdf
Bohlender-Graebener Neo10 - RumoH - Caps, coils and speakers
Bohlender Graebener Ribbons

1) Alconsaudio's RBN Series:
alcons audio - evolutionary audio solutions ®
Alcons RBN-Series - ultimate sounded high frequency Loudspeakers; where to buy

2) Stage Accompany SA8535 / ESS AMT
Stage Accompany
ESS Laboratories USA
Stage Accompany: the end or not?
AMT ESS-1 vs. Stage Accompany SA8535 (SA 8535)
GoodSoundClub - Romy the Cat's Audio Site - The SA8535: final conclusion.
Stage Accompany: the end or not?

3) Beyma TPL150 (TPL-150)
http://profesional.beyma.com/ingles/pdf/TPL150.pdf
Best midrange to pair with Beyma TPL-150
Beyma TPL150 vs Aurum Cantus 30130 comparison ?
Beyma tpl-150 + Lambda TD12M's
My open baffle dipole with Beyma TPL-150

Thank you for your comments.

studiotech · 6th December 2011, 12:54 AM

I don't understand your comparison of the Neo10 to all of these other drivers. Neo10 is meant as a mid, from 250-3KHz at most. Other drivers you list are 1KHz crossover and above. What info are you looking for?

Neo10 makes an excellent midrange and the TPL is a great substitute for a compression driver. No experience working with the other drivers.

Greg

5th December 2011, 05:28 PM	#1
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	BG Neo 10 (Neo10) vs. Alcons RB401, SA8535, ESS AMT, or Beyma's TPL-150 The most obvious difference from Bohlender-Graebener's Neo10 to the other in the headline mentioned HF ribbons is the lower efficiency (disadvantage) and the extended frequency aera down to 300 Hz (advantage). Thus actually I cannot compare this ribbon transducer with all the others. Nevertheless it would be interesting to know more about the various audible impressions between both categories. In case of two way systems the low frequency transducer has low requirements concerning the aera between 300 until 1500 Hz by use of the Neo 10. Thus it is more easy to find appropriate bass-driver models therefore. OTOH - also up to 2000 Hz there are a lot of drivers available with very good acoustical midrange behaviour, even by the '10 and '12 size (Fane's Colossus and Precision Devices' PD series are examples). So the actually question for me is follow: Are there residual possible benefits in case of the Neo 10 compared to the other models (from the view of audible perception, not from the view of measured results like THD and frequency response) ? The increased attenuation in the upper frequency aera is theoretical also a disadvantage (strictly speaking, one must introduce an additional UHF tweeter) but it is not of very great significance in real life without additional tweeter - so I think. Here a small URL collection from all ribbon/air motion transducers: Bohlender-Graebener Neo10 BG Radia - The Power of Clarity http://www.lautsprecherbau.ch/shop2/...t/BG_Neo10.pdf Bohlender-Graebener Neo10 - RumoH - Caps, coils and speakers Bohlender Graebener Ribbons 1) Alconsaudio's RBN Series: alcons audio - evolutionary audio solutions ® Alcons RBN-Series - ultimate sounded high frequency Loudspeakers; where to buy 2) Stage Accompany SA8535 / ESS AMT Stage Accompany ESS Laboratories USA Stage Accompany: the end or not? AMT ESS-1 vs. Stage Accompany SA8535 (SA 8535) GoodSoundClub - Romy the Cat's Audio Site - The SA8535: final conclusion. Stage Accompany: the end or not? 3) Beyma TPL150 (TPL-150) http://profesional.beyma.com/ingles/pdf/TPL150.pdf Best midrange to pair with Beyma TPL-150 Beyma TPL150 vs Aurum Cantus 30130 comparison ? Beyma tpl-150 + Lambda TD12M's My open baffle dipole with Beyma TPL-150 Thank you for your comments. Last edited by tiefbassuebertr; 5th December 2011 at 05:33 PM.

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6th December 2011, 12:54 AM	#2
studiotech diyAudio Member Join Date: Jun 2004 Location: Orlando, FLA	I don't understand your comparison of the Neo10 to all of these other drivers. Neo10 is meant as a mid, from 250-3KHz at most. Other drivers you list are 1KHz crossover and above. What info are you looking for? Neo10 makes an excellent midrange and the TPL is a great substitute for a compression driver. No experience working with the other drivers. Greg