Help please with these bxhxt

[gaborbela]

Hello

I would like to ask for help about these "bxhxt"
I'm interested to clone these speaker for myself .
Here are some technical spec

technical specifications

Typ Fullrange Club
Description DV8 C
Dimensions bxhxt (mm) 300 x 910 x 300
Load capacity 90W RMS
Max. SPL 95 dB
Frequency range (Hz) 30-20.000
Impedance 8 Ohm
Loudspeaker 8" ( 200mm)
Beyma 8BX
Weight 18kg

More information here.
Benk Cube Diffuser Lautsprecher Systeme, Speaker, don´t panic, case manufaktur

My question about the dimension , the 300x910x300 mm is inside or outside dimension??
It is very important if I want to get the right bass!
If some one has some idea please help with.
One of my fried made some calculation, I need 65L BR to get 30Hz, but he advised these Beyma 8BX is better in closed enclosure not so good in BR!
Thank you.
Greetings gabor

[gaborbela]

Hello

I'm also open to another type of encluse. First time I try to use one point source speaker.
Aldo these coaxial I believe those people can help who has experience with Fostex, Nirvana etc speakers

The Beyma 8BX data

General descriptionThis loudspeaker is a single unit, two-way system, comprising of an 8” bass driver and a concentrically mounted tweeter. This provides a single point source and reduces phasing problems in the crossover region. The bass unit features a 1”3/4 (40 mm.) voice coil attached to a polypropylene cone and copper ring on the pole piece. This provides a smoothly extended frequency response up to 7 kHz, with reduced harmonic distortion. The compression tweeter shows excellent efficiency and fast response to transient attacks.

Key Features
- Considerable power handling: 100 w AES (low frequecies) and 20 w AES (high frequecies)
- Combination of a 8" bass loudspeaker and a compression tweeter
- L.F. Unit: 1.5" (38.5 mm.) aluminium voice coil
- H.F. Unit: 1" (25.8 mm.) copper voice coil
- Aluminium diaphragm tweeter
-The concentric mounting reduces phasing problems in the crossover region
- Linear and coherent response

Technical Specifications

L.F. Unit
Nominal Diameter 200 mm. 8 in.
Rated Impedance 8 ohms.
Minimum impedance 6.8 ohms.
Power capacity 100 w AES
Program power 200 w
Sensitivity 92 dB 2.83v @ 1m @ 2p
Frequency Range 25 - 8000 Hz
Recom. enclosure vol. 20 / 60 l 0.746 / 2.24 ft3
Voice coil diameter 38.5 mm. 1.5 in.
Magnetic assembly weight 2 kg. 4.4 lb.
BL factor 7.3 N/A
Moving mass 0.023 kg.
Voice coil length 14 mm.
Depth 120 mm. 4.72 in.
Air gap height 6 mm.
X damage 20 mm.

H.F. Unit
Rated impedance 8 ohms.
Minimum impedance 6 ohms. @ 4 kHz
Power capacity
20 w AES
Frequency Range 3- 20 kHz
Sensitivity 102 dB
Voice coil diameter 25.8 mm. 1 in.
Flux density 1.4 T
BL Factor 4 N/A
Dispersion 90º

Al do I like the Benk Cube speaker I'm open to any advise.
Greetings Gabor