Showing posts with label JBL. Show all posts
Showing posts with label JBL. Show all posts

Wednesday, November 29, 2017

New Three Way Horn System In The Works

I've been collecting parts for this for many years. This may be the slowest project I've ever done. My friend JC designed the basshorn, provided the math for the builder of the tractrix mid and tweeter. I need to build top hats for these and my least favorite part the passive crossover. Fortunately my friend Chris is helping me with this or I'd have to go active. 

Here we have the bass horn. It is large and can accomodate 12" 15" or 18" drivers. For this application we are using 12" drivers. These will play up to around 350hz.
I am a toddler when it comes to putting systems together but the main point in DIY is to learn so if it doesn't work try and try again.
I need more stuffing. 

 Fortunately these drivers can pick up around 350hz. These are JB 2482 drivers and are so very heavy.
 They will be mounted to these pure tractrix horns. They do look better in person not sure what the flash did here.

 Most of these horns are on loan to me but will be fun to try out for a while. Round tractrix with B&C DE250. They start breaking up past where I can hear lol....
This will be going together soon and then tweaked until it sounds right. That will likely take a while. This will be my second system on the other end of the house lol. Now to find technology to stream audio in sync to both systems... Anyone have any suggestions?

Check out the DIY tractrix horns at Fastlane Audio.
http://www.fastlaneaudio.com/

Wednesday, September 13, 2017

JBL Timline 54

Here is an ad for a JBL speaker I am unfamiliar with or maybe I just pay attention to the big stuff.

Monday, July 6, 2015

Custom Four Way Horn System

This four way horn system made an appearance on craigslist of all places. The price was under $20K. The custom horns look great and drivers are JBL and TAD.  I wish I had better pics as craigslist scales them down. 














Monday, September 1, 2014

JBL Multicell Horns

Time Electronics... Now that is what I call multicells....Dammm. These were fitted with JBL 2480 drivers. Did they all fit in the van?

Thursday, July 31, 2014

ID These JBL Cornerhorns ?

I was emailed these pics by Johm who just purchased them and wants to know exactly what they are..

Here is the email I received..

I just bought these and have no idea what they truly are. I know of 1 other pair that surfaced on the web in 2009. There is a rumor that they were made by Bill Hartsfield as a bet between him and William Thomas of jbl. He  said he could build a speaker that uses a 8" driver that would rival the Hartsfield. Only 12 was made according to the rumor. The drivers are d216,075 and N2400. They both have JBL registry cards with consecutive serial numbers for the drivers. The inside horn path looks just like the hartsfield patent drawing. Any info would be greatly appreciated.


Ok JBL experts what exactly does John have here??

Measurements are 32"h x 19" x 19"




Monday, December 9, 2013

Stereo via Sonic Environment - May 1959 JBL Article

A May 1959 home-use report on the new JBL-Ranger METREGON stereo speaker system.


Wednesday, October 16, 2013

1957 JBL Paragon

They won't make them like this again. From the glory days of HiFi. I am more interested in the amazing design than I am in the sound. This thing had to be a beastie to design and put together. These pics are of a sale from last year.

Sunday, September 22, 2013

JBL - First With The Pros

Vintage JBL propaganda.

Tuesday, June 18, 2013

JBL Metregon

The Paragon's little brother.


Monday, July 23, 2012

Monday, January 9, 2012

How to rebuild JBL Paragon D44000

Nice video of Paragon rebuild. They love the stainless. The finish they did is superb.

Excerpt from the video description.

This is the highest quality sound and most beautiful JBL PARAGON re-built by KENRICK SOUND
- Beryllium diaphragms for JBL 375
- Back covers and 075(2402) horns are made of solid stainless steel
- Center brackets and screw washers are made of solid stainless steel
- Teflon silver wires and Gold speaker terminals
- All drivers have been re-magnetized
- All capacitors in the crossovers have been replaced to new ones
- All screws are new ones
- Polyester paint finish 30 gloss level on the cabinets

Might as well post the Everest DD5500 they have posted as well..... I like the size of the horns :)



This post originated at retro vintage modern hi-fi http://itishifi.blogspot.com

Tuesday, October 4, 2011

Ampex Mid Century Modern Console Score

I collect mid century modern furniture as well as stereo gear so this fits right in. It is an Ampex A423 console. I think it dates to the mid 50's. It makes some sound but not much. The goal will be to make it sound ok and be functional. The turntable is a Garrard RC33 which is a bummer but maybe I'll find something else to go in there like a 4HF. The console will likely go in a spare bedroom. I'm just glad it didn't go to the dump.
The RTR doesn't work so I'll try to lube it and replace belts if that doesn't work I'll start looking for one on ebay. It isn't high end so it should cost too much. If something else would fit I'd use a different RTR but that seems to be more trouble than its worth.
The speakers are interesting. They are some form JBL D260 or D216 or some predecessor to the LE8. These are the only drivers in the console. They are pretty heavy for 8 inchers. The mids sound surprisingly nice but not much HF. A period JBL tweeter might make it sound pretty good.
I was hoping for better amps but they came with a pair of 6V6 monoblocks. I'm sure they are ok for these speakers. They actually work pretty well right now.
It is a tight fit in there. The hard part will be getting everything out for a check up. It looks like the tuner and preamp are on the same piece. This appears to be the preamp for the RTR so it is separate. That is a guess we will see when I get in there.
The Ampex badge designates it as the A423.
The console came out of an old money 1950's mid century modern home. I doubt the console has moved since mid 50's. The funny things is that I drove right past 311 Main St to get it to my house :). Now that location is a Jazz Club which I'll have to check out soon.
The condition is pretty good the wood is solid and the thing must weigh around 250lbs. It was heavy. Not sure what the grain is but it is pretty.
Anyhow not bad for $40.


This post originated at retro vintage modern hi-fi http://itishifi.blogspot.com

Tuesday, January 11, 2011

JBL K2

Found this brochure for these cute little speakers.