AVS Forum banner
  • Get an exclusive sneak peek into our new project. >>> Click Here
  • Our native mobile app has a new name: Fora Communities. Learn more.

Infinity Beta 50 vS PRIMUS 360

5846 Views 25 Replies 16 Participants Last post by  dreadnaught
Folks,


I intend to buy Infinity speakers. I am confused between Infinity Primus 360 and Infinity Beta 50 speakers. I have so far heard Inifinity Beta 50 speakers. Have not been able to hear the Primus 360s.


1. Can you provide first-hand opinion on which amongst the above speakers is your preference if money is no concern.


2. I am located in NJ. Can someone pls point out a store (in NJ,NY, PA ) where I can audition both of these speaker types.


3. I have noticed good pricing on circuit city (CC), however all of these Inifinity speakers seems to be out of stock. Is Circuit city discontinuing to carry these line of speakers ? Though the advertised price by CC is very attractive.
Status
Not open for further replies.
1 - 20 of 26 Posts
I am pretty sure the beta series is the more modern of the two. If you contact Infinity direct, using the phone numbers from their web site, the techs there will be glad to explain the differences in the two models, describing the drivers, crossovers, cabinetry etc.


I talked to them about the differences between the alpha series and the beta series. They were very helpful and straightforward. They can also direct you to a dealer with a showroom.


I live in NJ and the only easy place is Circuit City and they only have a limited supply of beta series and they have not been -for me- a good place to audition speakers.


Good Luck
Beta is a higher end line then the primus.


I did not like ANY primus I have ever demoed, but I have heard decent things about the betas.

Why only limited to those to. Their are many (arguably) better speakers out their then those 2 inifinty models in the price ranges that they are both in.
I know you are looking only at Infinity, but I purchased Infinity Alphas a few years ago. They were replaced with Swan 6.1 s and then relegated to surround duty. The swans are a more detailed speaker for a little more money.

http://www.theaudioinsider.com/
You'll find several Infinity enthusiasts here. Guess we hide well. Don't know why though because they offer an exceptional speaker at a good price (as long as its not MSRP). I have Overture 3s and Interlude 60s. Love 'em both. The Betas are definitely the better speaker because they use a higher technology driver. I hope they sound better because of that. The Primus line has been well reviewed as a starter speaker. But if money is no concern pick up a pair of used Intermezzos or Preludes on EBay. Then you get terrific sound and wonderful eye-candy.
i just listened to primus 250, didnt care for them compaired to the polk. they were out of the betas so i didnt geta chance to hear them. i too was all about the infinty speakers, but now that i have heard the polks im gonna do some searches on here to see what people think
if you search around, you can find an entire Beta 50 system (c360 center, beta 50 mains, surrounds, and 500 watt sub) for just under $2000


i have it, and for the money it's a very nice home theater setup.


there's ALWAYS something better...the question is for the price, are you getting the best performance..some recent reviewers feel the beta 50 system is excellent at that price point.


yes, i wish i had a 5.1 system comprised entirely of nautilus speakers, but the i'd need a like twenty amps to run them, a new floor to handle the weight, and a divorce lawyer to deal with my wife.


that's a little beyond my budget.
See less See more
Heartsurgeon has it right. For the money it will be difficult to find anything more SATISFYING. Infinity sound is natural, clear, and accurate. Floyd Toole and his minions know their stuff. Infinity products sound much better than they look. Not long ago they had really beautiful speakers. The Overtures and Intermezzos come to mind. Don't know what happened. Probably price-point competition. Too bad because some good looks can really help sell a product.


Greg
My Ascend 340's absoutely SMOKE the Beta's @ an even better price point.
I just bought the entire Infinity Beta series (20's, 50's, and C360) except the sub. I am very happy. Very clear and more theatrical sounding than what I had before (Yamaha speakers: NS-AC line).


I purchased all five Infinity speakers for around $1000.00 and I just ordered the SVS PB12-ISD. Circuit City.com was running a great deal on the Beta 50's.
The bill of materials for the Beta series was higher at every price point and for every configuration than that of the Primus. The Primus line was the first designed by Bill D., a brilliant designer who was severely cost constrained with his parts choices. The Primus line is built by a Harman subcontractor in China while the Beta's are built in Harman's own Tijuana factory. The Primus' 3/4", China built tweeter is quite a bit more variable frequency-wise than the 1" tweeter of the Beta's which were built by a German subcontractor. In a similar vain Bill had to use iron rod inductors for the woofer sections while I was able to use laminated steel-core inductors. In the high end of the Beta's I was able to use mylar caps on the tweeter whereas Bill was cost constrained to 5%DF electrolytics. The wood baffles of the Beta speakers are considerably thicker than those of the Primus and as hinted at above the CMMD mid and woofer drivers are a bit higher quality than those in the Primus line.

Having said all this I do need to point out that the both Primus and Beta speaker lines went through Harman's in-house double-blind Multichannel Listening Lab testing against competitive models that had been identified by Harman's Sales and Marketing. Both emerged victorious in each of their respective price categories/configurations against (typically) the three other closest competitive models.

Bill completed the Primus line around three years and I essentially finished the Beta's just over two years ago. By the way Brian CA. designed two of the Beta models, the CA-250 and the bipole-dipole surround model.
See less See more
Welcome plhart!


Great to have an Infinity designer on the forum. Please don't be shy or reticent with your responses.


Greg
plhart, Welcome and thanks for the interesting info.


Do you have any info regarding the JBL Northridge E series vs the Beta or Primus?
plhart,


Just curious...what is the reason for the metal grills on the Betas?
The Northridge E series is about 4 years old. It is my understanding that most models were designed by Matt N who I've heard moved over to the Multimedia division a few months back.


In general the Es have lower price points than the Primus series and use larger cabinets (if comparing specific configurations) with thin 5/8" MDF even in the large cabinets. The speakers are less expensive, older JBL technology and the crossovers also use less expensive parts. The Es were originally intended to appeal more to less sophisticated mass market retailers and customers. When you get down to these price points it becomes very difficult to design for a flat, wide band response because many times the systems engineer is given the exact drivers that must be used (for cost reasons) as well as the exact cabinet dimensions (and whether or not you can even specify an internal brace).


The largest Northridge E cabinets were made in Tijuana because shipping costs would have been prohibitive. I believe the remaining models were made in China. It should be noted that most competitors to the Northridge E series must also use exactly the same type of cost cutting tricks to compete at these price points and that in the Es did beat these competitors in double-blind testing in Harman's Multichannel Listening Lab. That's the Harman corporate madate for any Harman Kardon, JBL, Infinity or Revel speaker to make it to market.
See less See more
The Betas were designed initially for the European market. They were meant as the first US-designed and engineered replacements for the Alphas which had been designed and built in Europe.


The designer of the cabinets and grilles was an independant who had also done design work for B&W. Harman Europe identified their main European competitors as B&W, Canton and JM Lab. The designer had told us that he strove to achieve a Euro-American look to the Betas. The unique, gradually decreasing hole size pattern you see on the Beta line was an integral part of that look.
This is what i call.."Right off the horse's mouth". When i started this thread I was not anticipating this level of response. THANKS A MILLION for the details. I could not have asked for a well considered opinion. I guess it pays to ask.


Thanks again

Regards

QwikM


PS: I went to the circuit city store and (finally) got a pair of Beta 50's today. They look gorgeous in the 'music room'..a dream come true.Although I am still to buy a matching AV Receiver (Denon 3806 ???) !!!






Quote:
Originally Posted by plhart
The Betas were designed initially for the European market. They were meant as the first US-designed and engineered replacements for the Alphas which had been designed and built in Europe.


The designer of the cabinets and grilles was an independant who had also done design work for B&W. Harman Europe identified their main European competitors as B&W, Canton and JM Lab. The designer had told us that he strove to achieve a Euro-American look to the Betas. The unique, gradually decreasing hole size pattern you see on the Beta line was an integral part of that look.
See less See more
qwik, I'm upgrading to a Yamaha HTR-5890. Should be here soon.
The thing that pisses me off about most speaker companies is that it's impossible to find a place that sells them where I can listen to them in a decent environment.


As far as the BETA50s go, I can't even find a place in DC/MD/VA to even LISTEN to them at all.


After getting the bad news that Martin Logan warranties do not transfer, I've had to step back from ESLs ... I hear good things about the BETA50s but I'm not spending $1700 on speakers to find out I hate them once they get delivered. Anyone live in DC/MD/VA that knows where to hear some BETA50s? Thanks!
The beta series is a huge step up from the primus series. The primus speakers are more laid back while the betas are ALOT more forward. The beta 50's also have a very large sound stage. The only bad thing about the betas is their grills are butt-ugly, the alphas were alot more attractive!
1 - 20 of 26 Posts
Status
Not open for further replies.
Top