Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Home Built Infinity SM-155
Home Built Infinity SM-155
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 11th October 2018, 03:52 AM   #1
frostyfx is offline frostyfx  Canada
diyAudio Member
 
Join Date: Jun 2015
Default Home Built Infinity SM-155

Hello Everyone!


I am kind of green still and am looking for help on building a speaker that will be the same as an Infinity SM-155.

See specifications below:

Power Rating - 10-300 Watts
Frequency Response - 29Hz to 27kHz within +/- 3dB
Crossover Frequency - 500Hz / 5500Hz
Efficiency - 102 dB SPL, 1 Watt / 1 Meter
Impedance- Compatible with 4 to 8 Ohms
Driver - 1 x 15" Woofer, 2 x 4.5" Midrange, 1 x 1" Tweeter
Dimensions - 17.75" Wide, 40.25" High, 12.5" Deep

Tone controls (mid, tweeter), auto-reset circuit breaker protection (mid & tweeter)
Port - Tuned Rear

I need help with the following:

1) driver selection
2) enclosure construction
3) crossover schematic design


It would also be great if someone with these speakers could comment on if there is bracing in the original speakers and what the port dimensions are.


Also is it possible to use a front slot port versus a rear port?


Thank you in advance!

Last edited by frostyfx; 11th October 2018 at 05:35 AM.
  Reply With Quote
Old 11th October 2018, 06:24 AM   #2
FE3T is offline FE3T  Norway
diyAudio Member
 
Join Date: Dec 2004
Location: Close too Lillehammer
This will be hard to duplicate. Mainly because some of the specs are simply impossible.

Frequency Response - 29Hz to 27kHz within +/- 3dB
Efficiency - 102 dB SPL, 1 Watt / 1 Meter

These 2 comes to mind. Each on their own are maybe believable. BUT not both at the same time.

How Infinty managed too claim these numbers are beyond my understanding, but I guess it was too match CV`s equally bloated specs.
  Reply With Quote
Old 12th October 2018, 12:40 AM   #3
frostyfx is offline frostyfx  Canada
diyAudio Member
 
Join Date: Jun 2015
Hi FE3T,


Thank you for the information. Out of the two I would prefer to have the frequency response and sacrifice efficiency.


Cheers,


Quote:
Originally Posted by FE3T View Post
This will be hard to duplicate. Mainly because some of the specs are simply impossible.

Frequency Response - 29Hz to 27kHz within +/- 3dB
Efficiency - 102 dB SPL, 1 Watt / 1 Meter

These 2 comes to mind. Each on their own are maybe believable. BUT not both at the same time.

How Infinty managed too claim these numbers are beyond my understanding, but I guess it was too match CV`s equally bloated specs.
  Reply With Quote
Old 24th October 2018, 01:11 AM   #4
frostyfx is offline frostyfx  Canada
diyAudio Member
 
Join Date: Jun 2015
Hi Everyone.


I am still hoping someone can help me with creating these speakers.


Thank you in advance.
  Reply With Quote
Old 24th October 2018, 01:13 AM   #5
frostyfx is offline frostyfx  Canada
diyAudio Member
 
Join Date: Jun 2015
Hi Everyone,


I am still hoping that someone can help me with this project.


Thanks in advance.


Cheers
  Reply With Quote

Reply


Home Built Infinity SM-155Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Issue with a home built amp Rudd3r Instruments and Amps 25 30th September 2016 03:14 PM
Home Built cpc748 Multi-Way 7 30th March 2015 04:36 AM
HTPC for my home built projector Projector Project PC Based 0 6th January 2011 05:52 AM
Can't get home built amp working ackeron42 Solid State 3 13th November 2006 07:35 PM
Built-in home entertainment SuppersReady Everything Else 23 12th November 2003 10:17 AM


New To Site? Need Help?

All times are GMT. The time now is 02:46 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki