Speakerplans.com Homepage
Forum Home Forum Home > Plans > Plan Requests
  New Posts New Posts RSS Feed - P.AUDIO BM8CXA DIY Midtop Plans
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

P.AUDIO BM8CXA DIY Midtop Plans

 Post Reply Post Reply
Author
Message
MrScy View Drop Down
Registered User
Registered User


Joined: 23 June 2017
Location: South Africa
Status: Offline
Points: 16
Post Options Post Options   Thanks (0) Thanks(0)   Quote MrScy Quote  Post ReplyReply Direct Link To This Post Topic: P.AUDIO BM8CXA DIY Midtop Plans
    Posted: 02 October 2018 at 10:40am
Hello,

Just got 2 P.AUDIO BM8CXA coax drivers and I intend to use for light duty mid top jobs. I am looking for efficient DIY designs, horn loaded, parareflex etc. Looking for 130/200 to 18/20Hkz response

I wont mind a MT18 if there's(MT112 optimized for 8" coax) Smile

Please assist with plans and simulations.
Specs:
Low Frequency Specifications
Diameter : 8" / 203.2mm
Impedance : 8 ohms
RMS Power : 200 watts
Program Power : 400 watts
Frequency Range : 80Hz - 18kHz
Sensitivity : 95dB SPL
Voice Coil : 2.5" / 63.5mm
Magnet Weight : 60 oz.
===============================
High Frequency Specifications

Rated Impedance: 8 ohms
RMS Power Rating: 40 watts
Program Power Rating: 80 watts
Frequency Range: 1.5kHz - 18kHz
Sensitivity (1W/1m): 105dB SPL
Voice Coil Diameter: 1.35" / 34.3mm
Magnet Weight: 2.2 lbs.

===============================
Thiele-Small Parameters

Resonant Frequency (Fs): 53 Hz
Impedance (Re): 6.5 ohms
Mechanical Q (Qms): 4.5
Electrical Factor(Qes): .22
Total Q (Qts): .21
Comp. Equivelant Vol. (Vas): .93 ft3 / 26.45 Liters

Voice Coil Overhang (Xmax): 3 mm
Surface Area of Cone (Sd): .021 m2
BL Factor (BL): 14.3 T-M

 
montek.co.za
Back to Top
Mircea Bartic View Drop Down
Old Croc
Old Croc
Avatar

Joined: 18 February 2005
Location: Romania
Status: Offline
Points: 2529
Post Options Post Options   Thanks (0) Thanks(0)   Quote Mircea Bartic Quote  Post ReplyReply Direct Link To This Post Posted: 08 October 2018 at 9:22am
I'm afraid you will only get a bassreflex or back loaded horn option. You can't put a coaxial in a front horn because you will loose the driver's output (horn acts as a lowpass)
general manager & head designer at nexus-acoustics research
http://www.facebook.com/nexus.acoustics.research

Ex Nexus_3
Back to Top
PavelP View Drop Down
Registered User
Registered User


Joined: 25 March 2011
Location: Russia
Status: Offline
Points: 154
Post Options Post Options   Thanks (0) Thanks(0)   Quote PavelP Quote  Post ReplyReply Direct Link To This Post Posted: 08 October 2018 at 4:21pm
Mircea Bartic, tell it to Tom Danley )
Volnovod audio https://vk.com/kb_volnovod
Back to Top
DMorison View Drop Down
Young Croc
Young Croc


Joined: 14 March 2007
Location: Aberdeen
Status: Offline
Points: 1095
Post Options Post Options   Thanks (0) Thanks(0)   Quote DMorison Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2018 at 12:35pm
To be fair, by avoiding having a compression chamber in front of the cone, Danley avoid that risk pretty easily as that's where the low pass characteristic comes from.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.063 seconds.