EPI 120C upgrades

I upgraded the EPI 120C speakers today with Solen 10uf capacitors, 14 gauge speaker wire and new speaker terminals to accept banana plugs. I bypassed the tweeter level control.

EPI's shine with the simple upgrades that I just did.Wow! These are the best EPI's I have had yet. I am really enjoying them.

Advent 5012 update

I finally restored the crossover to the original specifications as it was drawing a ton of current from my amp and tripping the overload circuit. I tried changing out the 7uf and 33uf series caps and used a single Solen 5.6uf cap.

The original write up can be found here.

Now that the crossover is back to original specifications these speakers are really nice.

Some feel that these are the best of the large Advents, I have not heard the other versions but I do like these speakers a lot.

The last step is to reassemble the grills as I took the cloth off to clean the fabric.

EPI 120C Speakers arrived

Another pair of EPI speakers have come my way, this time the EPI 120C. This is the big brother of the EPI 100 with a 10" woofer and bigger cabinets.

So far they sound like the classic EPI 100 sound but with fuller deeper bass.

This set of speakers, although in pretty good condition need some regular EPI upgrades.

It is well documented that the internals are the weak spot in otherwise great drivers that work perfectly together. Humanspeakers does a great write up on changing out the spring clips, internal wiring, the capacitor and bypassing the tweeter level control.

This pair had the woofer re foamed which is not up to the standards of this Speakerholic.  Who ever did the job cut a larger surround and spliced it to make a 10" leaving a awful overlap and air leakage, this will have to be redone.

 

One nice thing is this pair of speakers already has the brace from the front baffle to the rear baffle, something that the Advent 5012 did not have but I added to.

Other EPI speakers that I have written about that have come my way are the pink home made ones, this pair of Genesis 22, this pair of EPI 100 Plus T/E of which I yanked the drivers out and put in CTS ALNICO 8" woofers with CTS Phenolic Ring tweeters, which is an Acoustic Research AR4X clone. This little pair of EPI 70C which got a Dayton 6.5" woofer replacement, this original pair of EPI M100's and last but not least the Advent 2002's that got the EPI inverted dome swap.

Paradigm 9SE

A friend of the blog stumbled upon these Paradigm 9Se speakers by the side of the road and was stoked to drop them by and ask for my opinion and wanted to know if there was much to do to improve upon these speakers.

The vinyl veneer had seen better days but the job would be laborious considering their size.

The 9Se is the second from the top of the line with the range staring with the 3SE Mini, 3SE, 5SE, 7SE, 9SE and the 11SE. I have had 4 pairs of the 3SE, which I like very much 2 pairs of 3SE a pair of 5SE. I always found the 3SE and the 5SE a tad bit boomy in the bass.

These 9Se have a double 8 inch woofer that makes the very efficient running at 4 ohms. The bass is done right and is tight unlike the 3SE and the 5SE.

The 9SE are very airy with a wide sound stage, the mid range is upfront and full.

These are a fabulous speaker from Paradigm and worthy of seeking out if the price is right. You will need a good amp to drive them properly.

PSB 50R Speakers finished

The PSB 50R speakers have been finished for over a week and this was another very worthy project. These speakers are typical 8 inch woofer paired with a dome tweeter.

These speakers are designed by Paul Barton using Philips drivers. The cabinets are very well built with bracing behind the woofer. Apparently Paul used the NRC testing facilities to design these speakers. I remember the 50R's getting really good reviews in the early 80's

These speakers got a re foam which was tedious as the foam surrounds are unique but I found a correct pair.

The crossover 4.7uf cap was replaced with a polyester foil cap, which opened up the high end.

The sound is incredibly smooth from these speakers with tight bass smooth mid range and 3 dimensional depth. They do not give off the spaciousness or airiness of other speakers I have but they put the instruments in the right place 3 dimensionally.

I always wanted to try the 50R speakers and I am glad I have the time to audition these classics.

PSB 50R speakers, just arrived

I picked up a pair of Paul Barton's 50R speakers yesterday. These were well regarded 8" woofer and 1" dome bass reflex speakers from the mid eighties. The drivers are from Philips and the woofer's need to be refoamed.

Pictures will be up once the work is done.

EPI T/E 100 cabinets with AR4X CTS Alnico woofers and CTS Phenolic Ring tweeters

I have accumulated enough free speakers lately that I managed to create a nice hybrid system.

I am a  fan of EPI 100 speakers but never really liked the EPI T/E100 speakers. So the cabinets got swapped with 8 inch CTS Alnico woofer that were found in AR4X speakers with a pair of CTS 2T2 Phenolic Ring tweeters. I changed the crossover to a first order 8uf cap on the tweeters and the woofer just rolls off naturally as per the organ donor  they came from, EDS 1000.


I am really impressed with the sound, I tried a pair of CTS 2T8 tweeters but found their output was to brash for the 8 inch woofer and swapped back in the CTS 2T2 tweeters.

Fabulous combination.......

Update: I moved the crossover point to 3000hz by making the cap a 6.7uf instead of the 8uf value. It has helped out in the the midrange but I still believe a 5 watt 10ohm resistor still may be needed.