• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Optimus VS Imperial Comparison

Bodyblue

AK Subscriber
Subscriber
Over the weekend I picked up another pair of Optimus 5 speakers and when I got them home one woofer was deadsville. I have bought probably 40 pairs of speakers without hearing them and this is the first time that has happened. I paid next to nothing for them so it was no big deal to order another one from Ebay.

As I was telling another member who bought some Optimus 1Bs yesterday, Optimi or Novas can be a pain in the butt to open up. The irritating part is that the barrel nuts that grip the nuts that hold the woofers in ALWAYS fall out of the wood.......and of course it happened twice this morning. Oh well.

I tested them by taking down my Imperial 6s from the front system that right now is powered by the new to me Onkyo 4500. To finish this part of the story: The new driver works and the speakers sound fine, but the Onkyo does not drive them well at all. They are less sensitive than the easy to drive Imperials so the Onkyo will be leaving for a while.

As I was changing them out I was noticing how different makers did things differently in order to make a speaker to the price point and still make money. The Marantz speakers use fairly pedestrian drivers but, as anybody who has heard them, they sound far better than the sum of their parts indicate they should. The cabinets sides are pressboard covered in a nice walnut veneer. The standard terminals are pure crap; just two cheap screws. I had nicer ones installed when I had them recapped a while back. But with all that, my 6s are just sublime and I love them.

The "cheaper" Realistics have a plywood cabinet with fronts of pressboard as can be seen in the pictures. The crossovers are not expensive but they have more adjustments than the Imperials do. And the Fostex drivers are actually pretty nice with heavy magnets. But the Realistics have much nicer screw type terminals that are a lot nicer.

Which set sounds better? Right now the Marantz do. But they have been recapped and the Realistics have not. Do the Realistics sound bad? Heavens no! They have super solid bass with nice highs and mids that compete well with both the Imperials and my rebuilt KLH 6s. After seeing how easy it was to get to the crossovers I will try and get those capped soon so I can really compare them.

Radio Shack in the late 60s to the mid 70s tried pretty hard to compete in the mainstream speaker market and do it at a lower price. They did a better job than most realize I think.

Oh, and if all you want to do is tell me how shitty Realistic stuff is, please just move on and start your own thread.

20190912_072428.jpg 20190912_072450.jpg 20190912_075729.jpg 20190912_075735.jpg 20190912_080256.jpg 20190912_081042.jpg
 
Register to hide this ad
Nice comparison. I am a fan of Realistic / Optimus too and find them to be great for the money. I got my STA2100D receiver and STS-1500 speakers for damn near single digit percentages of what they originally cost and they sound fantastic.
 
Nice comparison. I am a fan of Realistic / Optimus too and find them to be great for the money. I got my STA2100D receiver and STS-1500 speakers for damn near single digit percentages of what they originally cost and they sound fantastic.

It was kind of a half assed comparison but since I had the Realistics open and the Imperials down I put it out there.

I changed out the gutless Onkyo for my Fisher RS 2007 and they like the 75wpc a lot better. The Onkyo just did not sound as dynamic as the Fisher. The Fisher is usually just my computer receiver driving Minimus 7Ws but it pairs well with the O5s.

The big difference is how less sensitive the Realistics are. I would estimate around 88-90db and the specs I have see for the Imperials is around 93db, probably why the Onkyo seemed to run out of gas even at low volume.

45 to 55 wpc is as low as I would drive them with. They love power and can absorb a lot of it. I have run my other set of O5s with my 125wpc Kenwood KR8010 and they really sound awesome. After listening to this set with the Fisher all afternoon the big difference I notice is how the Realistics need a big more volume before the bass comes on. The Imperials have more bass at lower volumes for sure.

20190912_153522.jpg 20190912_153510.jpg .
 
Over the weekend I picked up another pair of Optimus 5 speakers and when I got them home one woofer was deadsville. I have bought probably 40 pairs of speakers without hearing them and this is the first time that has happened. I paid next to nothing for them so it was no big deal to order another one from Ebay.

As I was telling another member who bought some Optimus 1Bs yesterday, Optimi or Novas can be a pain in the butt to open up. The irritating part is that the barrel nuts that grip the nuts that hold the woofers in ALWAYS fall out of the wood.......and of course it happened twice this morning. Oh well.

I tested them by taking down my Imperial 6s from the front system that right now is powered by the new to me Onkyo 4500. To finish this part of the story: The new driver works and the speakers sound fine, but the Onkyo does not drive them well at all. They are less sensitive than the easy to drive Imperials so the Onkyo will be leaving for a while.

As I was changing them out I was noticing how different makers did things differently in order to make a speaker to the price point and still make money. The Marantz speakers use fairly pedestrian drivers but, as anybody who has heard them, they sound far better than the sum of their parts indicate they should. The cabinets sides are pressboard covered in a nice walnut veneer. The standard terminals are pure crap; just two cheap screws. I had nicer ones installed when I had them recapped a while back. But with all that, my 6s are just sublime and I love them.

The "cheaper" Realistics have a plywood cabinet with fronts of pressboard as can be seen in the pictures. The crossovers are not expensive but they have more adjustments than the Imperials do. And the Fostex drivers are actually pretty nice with heavy magnets. But the Realistics have much nicer screw type terminals that are a lot nicer.

Which set sounds better? Right now the Marantz do. But they have been recapped and the Realistics have not. Do the Realistics sound bad? Heavens no! They have super solid bass with nice highs and mids that compete well with both the Imperials and my rebuilt KLH 6s. After seeing how easy it was to get to the crossovers I will try and get those capped soon so I can really compare them.

Radio Shack in the late 60s to the mid 70s tried pretty hard to compete in the mainstream speaker market and do it at a lower price. They did a better job than most realize I think.

Oh, and if all you want to do is tell me how shitty Realistic stuff is, please just move on and start your own thread.

View attachment 1615853 View attachment 1615854 View attachment 1615855 View attachment 1615856 View attachment 1615857 View attachment 1615858

To your point. If we accept that Lafayette was playing the same game as RadioShack. And the Optimus 5B and Lafayette 5XB were at odds with each other. And since I have the two here. I can say with certainty that Lafayette brought a knife to a gun fight. Both well built, but that's where the parity stops.
5B
P1130002.JPG
5XB
P1130001.JPG
 
To your point. If we accept that Lafayette was playing the same game as RadioShack. And the Optimus 5B and Lafayette 5XB were at odds with each other. And since I have the two here. I can say with certainty that Lafayette brought a knife to a gun fight. Both well built, but that's where the parity stops.
5B
View attachment 1616202
5XB
View attachment 1616203

Those are 5Bs correct? I have never heard them before, nor the Lafayette....have not even SEEN a Lafayette! But I have heard speakers, mainly Sansuis with the giant midrange and have never liked them. I would love to hear both of them.

I have this set of 5s up for sale locally but I am going to re cap my other set to see what a fresh set sounds like. The Imperials sound better than these 5s but I want to hear the difference after capping the 5s.

Oh and if you want loud rock and roll speakers, keep looking for the Imperial 6s. They sound better than every pair of OLAs I have ever heard. After I got my Imperials I quit looking for OLAs.
 
Lafayette was playing the same game as RadioShack

If they were playing the same game they did not play it as well as far as sales were concerned. Where were they sold? And were the price points similar? I just know so little about them.
 
Optimus/Nova 5B/8B. Stamped woofer instead of cast like the earlier Optimus/Nova 5/8. But the 5B sounds a little better and is more durable.

The Lafayette Criterion 5XB was sold in Lafayette stores and catalogs. For $129.95. The 1970-71 sounded dreadful. 1972-75 were much better. Better than the Realistic counter part. But there is no distinction between early and late unless you can identify the medal dome tweeter on the later one. And the later one had a much improve woofer that looks identical to the early one.
Since there's no way to know what you are getting without a forensics investigation I give the Criterion a fail. For being in direct "branded" catalog and chain storefront sales the Shack took the day.
Now if we take a harder look at KLH model 5, then things got a lot harder for Shack to keep up. But at half the price as you suggested.
 
Last edited:
To your point. If we accept that Lafayette was playing the same game as RadioShack. And the Optimus 5B and Lafayette 5XB were at odds with each other. And since I have the two here. I can say with certainty that Lafayette brought a knife to a gun fight. Both well built, but that's where the parity stops.

"If we accept that Lafayette was playing the same game as RadioShack"
I have no idea what that statement means. Can you explain?

The Lafayette Criterion 5XA was introduced in the 1970 catalog; the Lafayette Criterion 5XB was in the 1971 through 1973 catalogs and was then dropped from the line.
The Realistic Optimus 5B was introduced in 1976 several years after the Criterion 5XB had "left the building".
Both the Lafayette and Realistic speakers were acoustic suspension type speakers. Acoustic suspension tagged speakers never really impressed me. I would sell them if customer pushed in that direction but they were never my first choice.
 
Copying other acoustic suspension speakers, like the Fisher XP7B. The 5XB was in the store till 75. The receipt says 75 but the woofer says 74. Guess it was a selloff and dropped from the catalog.
 
Copying other acoustic suspension speakers, like the Fisher XP7B. The 5XB was in the store till 75. The receipt says 75 but the woofer says 74. Guess it was a selloff and dropped from the catalog.
I checked my Criterion speaker folder and I have a note in there that the 5XB was discontinued in October 1973. The note also said that some replacement parts were still available.
Also, "store": There were really two types of Lafayette stores. There were the company-owned Lafayette stores (in 1974-1975 about 100 stores). There were also "Associate" stores that carried some or most of the Lafayette product line. There were quite a few of these types of stores. The receipt you mentioned should have the name and location of the store. Sometimes, depending on how much inventory we had not moving or was considered "dead-like", and new stuff coming in to replace it, "Associate" stores were sometimes given price incentives to buy it up. By 1974, the Lafayette Criterion speaker line mainly consisted of the "triples", 222, 333, 444, 555, 666, 777, 888, 999.

You didn't answer my question. What did you mean by this: "If we accept that Lafayette was playing the same game as RadioShack"
 
Branded product catalog sales. My LR-3500 was on the same receipt for $299. The Nova 8/Optimus 5 hit the scene in 71?
 
Last edited:
Looks like some good structure in the cabinet.Thick baffle and bracing.I already know about the good quality veneers.I'm looking into possibly getting some Optimus 9s.Not a very common speaker from what I gather.
 
Looks like some good structure in the cabinet.Thick baffle and bracing.I already know about the good quality veneers.I'm looking into possibly getting some Optimus 9s.Not a very common speaker from what I gather.

I was surprised at how well the 5s are built. When they came out they were touted as RS's best speaker. And back then that actually meant something. My Imperials are not built that well actually.

Optimus 9 or Nova 9?


033.jpg
 
I have a set of those Optimus 5's. Foolishly let a buddy borrow them, he somehow managed to break the midrange adjustment knob, where it just fell out of the hole.

I can't suffer paying 40 bucks for another crossover to replace this one, so they sit, needing a little tlc and a recap, but otherwise ready to go.

That woofer is a solid driver, and the cabs are just lovely.
 
I was surprised at how well the 5s are built. When they came out they were touted as RS's best speaker. And back then that actually meant something. My Imperials are not built that well actually.

Optimus 9 or Nova 9?


033.jpg
Optimus 9 with a partially open rear baffle.Never knew of their existance until recently.
 
I have a set of those Optimus 5's. Foolishly let a buddy borrow them, he somehow managed to break the midrange adjustment knob, where it just fell out of the hole.

I can't suffer paying 40 bucks for another crossover to replace this one, so they sit, needing a little tlc and a recap, but otherwise ready to go.

That woofer is a solid driver, and the cabs are just lovely.

I remember about your 5s! We discussed that before!

The woofer I got from ebay had the same number on the magnet but had a different basket design. It works perfectly and looked the same from the front but like a lot of companies I am sure they changed specs like underwear.
 
Back
Top Bottom