Speakerplans.com Homepage
Forum Home Forum Home > Plans > New Projects Forum
  New Posts New Posts RSS Feed - Martin 215mk3 with pics
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Martin 215mk3 with pics

 Post Reply Post Reply Page  <1 567
Author
Message
Earplug View Drop Down
Old Croc
Old Croc


Joined: 03 January 2012
Location: Europe
Status: Offline
Points: 5425
Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 25 January 2019 at 2:01pm
Originally posted by MattStolton MattStolton wrote:



As I keep bleating on about, the laws of physics haven't changed; just our fashion for systems measured in MWatts (despite still only making 135+ish dB) and able to reproduce 20Hz like 100Hz.

For live music, the instruments haven't changed that much, only the keyboard and electronically synthed noise will ever create 20Hz, so what is the point?!?

Our desperation to produce that 20-40Hz octave is really distorting our attention away from efficiency, as much as sound quality in other pass bands.


There is a lovely bit in the Martin F2 User guide, where it compares Box A, Box B and Box C.

Box A - 107dB 1W/1m 1000W, Ten cabs in 3 foot of truckspace

Box B - 102dB 1W/1m 1200W, 12 cabs in 3 foot of truckspace

Box C- 102dB 1W/1m 1600, 9 in 3 feet of truckspace.

To produce same SPL as 10x Box A, you need 26 Box B, or 20 Box C. And amplifiers...Twice as many lorries for same SPL...

Obviously Box A is the F2B!


/High Horse
/Rant
/Coat being off



Clap Clap Clap Thumbs Up Clap Clap Clap


Earplugs Are For Wimps!
Back to Top
Robbo View Drop Down
Old Croc
Old Croc


Joined: 05 December 2005
Location: Shropshire
Status: Offline
Points: 3864
Post Options Post Options   Thanks (0) Thanks(0)   Quote Robbo Quote  Post ReplyReply Direct Link To This Post Posted: 25 January 2019 at 2:05pm
F2B is my favourite bass cabinet of all time and I have always preferred the sound of it compared to a mk3 bass horn.
The other good reason for having F2B cabinets is that they are very small for what they can kick out--almost half the size and a lot lighter than a mk3 and also great for truck packs.
The only reason why there are no copies of them knocking about is due to their rarity and not many people hearing them used in anger, as has been discussed in depth before on this forum.
I have a personal hate of the Martin mk2 bass horn as they are extremely "honky" and virtually impossible to get some serious punchy bass out of them even when stacked six high.
Back to Top
FOO View Drop Down
Registered User
Registered User
Avatar

Joined: 23 December 2018
Location: Denmark
Status: Offline
Points: 71
Post Options Post Options   Thanks (0) Thanks(0)   Quote FOO Quote  Post ReplyReply Direct Link To This Post Posted: 25 January 2019 at 4:36pm
Francis, what drivers did you settle on?

I know you have been talking about PD 1550 and RCF MB15n401. 
But Why the RCF? 5,5mm Xmax??

I am still looking into drivers, but 18sound 15lw2400 and 15nlw9401 still tickles my thoughts.
Back to Top
Father-Francis View Drop Down
Old Croc
Old Croc
Avatar

Joined: 24 October 2007
Location: Kenya ,Denmark
Status: Offline
Points: 2641
Post Options Post Options   Thanks (0) Thanks(0)   Quote Father-Francis Quote  Post ReplyReply Direct Link To This Post Posted: 25 January 2019 at 6:00pm
Originally posted by FOO FOO wrote:

Francis, what drivers did you settle on?

I know you have been talking about PD 1550 and RCF MB15n401. 
But Why the RCF? 5,5mm Xmax??

I am still looking into drivers, but 18sound 15lw2400 and 15nlw9401 still tickles my thoughts.
I’v Had abit too many things up my sleeve so I still need to sand them put some handles on then I can test, 
Music is the strongest form of magic.(+45 31879997)blakmanpro@gmail.com
Back to Top
 Post Reply Post Reply Page  <1 567
  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 0.047 seconds.