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This forum has been set up to facilitate discussion of 1970s KEF speakers and drive units. The owner of the Forum has no connection with KEF Audio.
 
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  Topic: KEF B300 bass unit SP1071 vs. SP1196
brucegseidner

Replies: 17
Views: 5171

PostForum: DIY with KEF drive units   Posted: Sun Jul 24, 2016 2:43 pm   Subject: KEF B300 bass unit SP1071 vs. SP1196
I have taken to heart your encouragement to go active in my substitution of B300's in this 105.2 Franken KEF project. I will build 70liter enclosures and mount the B300's and use the original 105.2 he ...
  Topic: KEF B300 bass unit SP1071 vs. SP1196
brucegseidner

Replies: 17
Views: 5171

PostForum: DIY with KEF drive units   Posted: Thu Jul 21, 2016 2:06 am   Subject: KEF B300 bass unit SP1071 vs. SP1196
So, what I'm hearing is that this will be empirical. I need to start from scratch and work this out by measuring actual room response and tweek or dial as I go?

Do I understand correctly that it i ...
  Topic: KEF B300 bass unit SP1071 vs. SP1196
brucegseidner

Replies: 17
Views: 5171

PostForum: DIY with KEF drive units   Posted: Wed Jul 20, 2016 9:07 pm   Subject: KEF B300 bass unit SP1071 vs. SP1196
I appreciate your forbearance but I'm not asking for more than a description of what I need to model in an active DSP crossover. I understand the published crossover frequency of 400Hz. But I didn't f ...
  Topic: KEF B300 bass unit SP1071 vs. SP1196
brucegseidner

Replies: 17
Views: 5171

PostForum: DIY with KEF drive units   Posted: Wed Jul 20, 2016 2:11 am   Subject: KEF B300 bass unit SP1071 vs. SP1196
Maybe you could direct me to a discussion of the XO. I will start looking as well. I have seen discussions of the LS3/5A and the complexity of those boards is impressive. This SP1119 is beyond anythin ...
  Topic: KEF B300 bass unit SP1071 vs. SP1196
brucegseidner

Replies: 17
Views: 5171

PostForum: DIY with KEF drive units   Posted: Tue Jul 19, 2016 5:59 pm   Subject: KEF B300 bass unit SP1071 vs. SP1196
Well, I'll be (blank). But as the Chinese observed crisis=danger+opportunity. And it is so much easier these days to go active. JRiver Media Center slices and dices the spectrum and you have a choice ...
  Topic: KEF B300 bass unit SP1071 vs. SP1196
brucegseidner

Replies: 17
Views: 5171

PostForum: DIY with KEF drive units   Posted: Tue Jul 19, 2016 12:51 pm   Subject: KEF B300 bass unit SP1071 vs. SP1196
That is fascinating. Thank you.

I have 4 crossovers, SP1119 Serial#2830,2831 and #3767,3768.

Sounds like they are expecting a different load. Is this consequential?

What is a potential remed ...
  Topic: KEF B300 bass unit SP1071 vs. SP1196
brucegseidner

Replies: 17
Views: 5171

PostForum: DIY with KEF drive units   Posted: Mon Jul 18, 2016 4:54 pm   Subject: KEF B300 bass unit SP1071 vs. SP1196
This is odd. When I clicked the email link earlier there was the most complete and expert information I could have asked for, essentially describing differences in the way the drivers mounted. Now it ...
  Topic: KEF B300 bass unit SP1071 vs. SP1196
brucegseidner

Replies: 17
Views: 5171

PostForum: DIY with KEF drive units   Posted: Mon Jul 18, 2016 3:30 am   Subject: KEF B300 bass unit SP1071 vs. SP1196
KEF B300 bass unit SP1071 vs. SP1196
I would appreciate learning the differences between these iterations of the B300.

The SP1071 was loaded in the KEF 105.2's during its 8 year run. I'm unsure ho ...
  Topic: What do you get when you cross a Cantata with HTS2001 in 7.1
brucegseidner

Replies: 1
Views: 2446

PostForum: DIY with KEF drive units   Posted: Sat Jun 27, 2015 3:34 pm   Subject: What do you get when you cross a Cantata with HTS2001 in 7.1
I use 5 KEF HTS 2001 "EGG" Uni-Q speakers for my home theater set up. They are alright for DVD movies, but pretty inadequate for music. I have been noticing this as I use the system more reg ...
  Topic: HTS2001 rehab with PCB9 and helper woofer
brucegseidner

Replies: 0
Views: 1910

PostForum: DIY with KEF drive units   Posted: Sun Jun 14, 2015 8:44 pm   Subject: HTS2001 rehab with PCB9 and helper woofer
I generally like the KEF HTS2001 satellites. There are things they do nicely and they are well mated to the content and mix of TV programing and DVD movies.

But with music content, the hole below ...
  Topic: Please help me ID these Falcon Acoustics crossovers
brucegseidner

Replies: 3
Views: 3476

PostForum: Other speakers   Posted: Sat Jan 17, 2015 10:11 pm   Subject: Please help me ID these Falcon Acoustics crossovers
That is great news. I recall speaking to him when I purchased these 30 years ago. I just sent an email.

There is also a lot of depth on the bench here and I would be surprised if others had not us ...
  Topic: Please help me ID these Falcon Acoustics crossovers
brucegseidner

Replies: 3
Views: 3476

PostForum: Other speakers   Posted: Sat Jan 17, 2015 5:21 pm   Subject: Please help me ID these Falcon Acoustics crossovers
I am unpacking gear that has been in storage. This is a 70's and 80's time capsule. I have a bunch of KEF drivers that are in very good shape as well as a set of PCB-9 and PCB-11 Falcon Acoustics cros ...
 
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