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Eikona SL-A build
Eikona SL-A build
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Old 26th March 2020, 06:33 PM   #1
gus900 is offline gus900  United Kingdom
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Default Eikona SL-A build

Greetings.
I was very happy with my Frugalhorn Alpair 7.3s until one of them suffered an untimely accident involving the better half and some enthusiastic spring cleaning. I’m saying nothing but she never really liked the aesthetics of the ‘horns, preferring the Metronomes that have been relegated to the office. I can see her point, our living room is 6m x 4m, and the speakers fire across the shorter distance. The 0.45m depth of the ‘horns meant they stuck out further than ideal, especially as they work best pulled away from the wall. So something with less depth was in order and, as the 7.3s are NLA, it gave me the excuse for a new build. EJ Jordan’s Eikona SL-A seemed to fit the bill in terms of size, with some good reviews out there.

The advice is for 12mm birch ply but I only had 15mm, so 15 it was. Apart from that they are as per the plans on the Jordan site. The covering is Furniture Marmolium because I had some left from another project - and it's lovely stuff.

When I first fired one up in the workshop on a little tripath amp and compared it to the remaining F'horn I was a bit worried about what I thought was a lack of bass. It turns out that the Eikona's are just less efficient than the horns and need a decent amp to drive them, and they are designed to work against a wall.

With them in position and driven by my Passlabs F5 and Topping DX3-Pro they go loud enough for me and and they go low. So low I don't feel any lack of bass. And the highs and midrange integration are as good as you'd hope for from a driver at this pricepoint. Actually no. I'm listening to the Unthanks' The King of Rome and I've got shivers down my back, you can't ask for more than that. Highly recommended, I think this lockdown's not going to be so bad after all. :-) All the best everyone, stay safe, Gus
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Old 26th March 2020, 07:16 PM   #2
ultrakaz is offline ultrakaz  United States
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Hi Gus, thanks for sharing. I like the slim profile with the green and orange complimentary combo, adds a bit of pizazz to the room. And hopefully, it will prevent any accident from your "better half."

Any sonic preference between the A7.3 and the Eikona?
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Old 26th March 2020, 07:41 PM   #3
gus900 is offline gus900  United Kingdom
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Both are fantastic, I'm going to go for the Eikona's but it's really close. Maybe the SL-As go lower but the 'horns have greater mid-bass presence???
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Old 26th March 2020, 08:29 PM   #4
planet10 is offline planet10  Canada
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Eikona SL-A build
:^)

Can you link the plans?

The sideview looks much the same as the Compact Floorstander miniOnkens which fill the same niche as these.

Click the image to open in full size.

dave
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Old 26th March 2020, 08:39 PM   #5
gus900 is offline gus900  United Kingdom
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Hi Dave,
Here you go DIY - Eikona SL compact loudspeaker - E J Jordan Designs
Another build of the SL (the "B" version in this case) here: https://www.lencoheaven.net/forum/in...opic=27554.645)
Gus
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Old 26th March 2020, 09:37 PM   #6
planet10 is offline planet10  Canada
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Eikona SL-A build
Thanx. Imitation is the sincerest form of flattery :^) First CFS was in 2011.

Eikona SL-A build-eikonasl-p10-cfs-png

My Eikona are in Hawking Memorial Obelisks.

dave
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Old 27th March 2020, 08:17 AM   #7
Colin is offline Colin  United Kingdom
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Quote:
Originally Posted by planet10 View Post
Thanx. Imitation is the sincerest form of flattery :^) First CFS was in 2011.
dave
Sorry to disappoint but the SLA is nothing to do with your design; I wasn't aware of it until you posted it above.

The benefits of sloping baffles for smaller enclosures are so obvious, it's surprising more loudspeakers don't have them. A couple of prior examples:

Click the image to open in full size.

Meridian M1 in 1977

Click the image to open in full size.

Naim IBL in 1987.

And once the shape was established, the downward-firing port was a given.

I like gus900's elegant solution to the stand and the colours are fab.
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Old 27th March 2020, 09:02 AM   #8
TimbreAudio is offline TimbreAudio  United Kingdom
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These look lovely, congrats.
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Old 27th March 2020, 09:24 AM   #9
IanLenco is offline IanLenco  United Kingdom
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Hi Gus,
Congratulations, they look great. I built a pair of SLA cabinets a while back - the ones without a slope - and really enjoyed their performance.
Click the image to open in full size.


I added a bit of height to the cabs otherwise they are as per Jordan's plans.

I also have built Frugel Horns, standard and XL and really loved them but for me the Eikonas were worth the extra cost. My current favourites are the TL3s using two pairs of drivers but I've also recently built the new Mini TL which are great standmounters. and also go surprisingly low.


Click the image to open in full size.
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Old 27th March 2020, 09:41 AM   #10
gus900 is offline gus900  United Kingdom
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Hi Ian,
I saw your CNC'd TL3's over on LencoHeaven. They look amazing, I'm going to have to try it myself one day. I actually quite fancy building myself a diy cnc machine, but that's another story.
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