Infinity Systems Alpha 50 Floorstanding Speakers

5/5 (9 Reviews) MSRP : $765.00


Product Description

  • video-shielded
  • bass-reflex
  • frequency response 35-22,000 Hz (±3dB)
  • 8-ohm impedance
  • sensitivity 91 dB
  • handles up to 200 watts
  • black ash or cherry vinyl finish
  • dual 5-way binding posts
  • 9-7/8"W x 39-3/8"H x 13-13/16"D


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Reviews 1 - 5 (9 Reviews Total) | Next 15

User Reviews

Overall Rating:5
Value Rating:5
Submitted by William a AudioPhile from

Date Reviewed: January 1, 2012

Bottom Line:   
I was really lucky with these speakers. Being on craiglist, I was looking for something of a compact size and a nice build. When I first noticed these speakers on one of the posts, the first thing that caught my eye was the design and sleek and smooth appealing simplicity of this tower. Of course, before doing anything, I ramaged through the web trying to find every bit of information on these speakers. Short story long, I bought these!!
I must say, these are wonderful, and amazing speakers!! I tried every style through these, ranging from Opera to Heavy Rock. This speaker pulled out anything I put through it, without a hint of weakness. Frequency range did take me aback. Bass was tightly displayed to the ears, mids were there and not cutout like a smile frequency, and the highs were crisp but not painful.
I sat up on my bed once, and tried out watching Twilight with these speakers. The hilarious part was how much clarity these things put out at the right time. There was a scene where Edward and Bella kissed, and at the moment of that kiss, you could hear with such ease the smack of the lips from these speakers. Honestly, my eyebrows went up with how lovely these speakers shined!!!
A while later, I have found out something which made my insides jump from happiness, was that these speakers are made by Infinity which is connected to the " Harman " company. Harman specializes in some amazing speaker production, and to own at least a floor speaker set of their chain is the grandest thing ever for me!!!
For anyone out there, whether you are looking at ebay or craiglist or some 3rd party seller, and who prefers a nice clean balanced sound and quality. You will not regret buying these!!!

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Overall Rating:5
Value Rating:5
Submitted by Doctor a Audio Enthusiast from

Date Reviewed: November 27, 2010

Bottom Line:   
The sound that never disappoint you in any genre of music !
I have Alpha 50s for about 10 years and i really love them - Soft bass and nice highs - You can not imagine the pleasure of them until you hear them yourself - Best floor standing speakers for the money !

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Overall Rating:5
Value Rating:5
Submitted by badrabdoh a Audio Enthusiast from

Date Reviewed: November 26, 2006

Strengths:    superb highs, mids and lows. room filling sound. the best looking speakers.


Weaknesses:    none of course.

Bottom Line:   
these speakers are the best and I loved them so much. I had the jbl e80 before them, they were so good but comparing with the alpha 50, there is a really big difference. the sound is unbelievably crisp, clear and natural. although I am using a poor receiver (the yamaha rx-v550 ) the sound is flawless. I dont even think changing to a better receiver will make a diffrence . and I love the look of these speakers, I have never seen such well designed speakers like this. I have the cherry color. it fit with my room perfectly.

the bottom line is, if you see the alpha 50 in front of you , dont lose it.
they deserve every cent.

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Price Paid:    $500.00

Purchased At:   lingo

Similar Products Used:   JBL E80



Overall Rating:5
Value Rating:5
Submitted by Maximus a Audio Enthusiast from

Date Reviewed: May 2, 2006

Strengths:    Wide soundstage, dynamic ping pong affect, well balanced tonality, crisp clean accurate highs.

Weaknesses:    NONE

Bottom Line:   
I LOVE my Alpha 50 speakers. They are beautiful speakers well crafted, sleek and sexy. More importantly the performance is outstanding. In my 7.2 arrangement I have (4) Alpha 50s, (1) 37c center channel, (2) 25es surround speakers and (2) 1200s subwoofers. The Alpha 50 speakers are built with exceptional drivers and tweeter. These speakers are well balanced, neutral, accurate and to some degree magical. They present a large soundstage, excellent ping pong dynamics and bring out the perfect amount of detail and clarity without coming across harsh. The more money I have invested into other components and upgraded speaker wire, powercords and interconnects, the more amazed I am at how excellent these speakers really are. For example, I have added a $2,000.00 BPT power conditioner to my arrangement and that made a dramatic improvement in my overall sound. My speakers began to sing like $5,000.00 speakers, not $1,000.00 speakers! Some people feel the Alpha 50s are weak on the bass end. This is absolutely not true. The bass output is completely dependant upon your amplifier, power cords and speaker wire. I have added the PS Audio PLUS powercord to my Denon 3805 receiver and the bass output from my Alpha 50s is now staggering. As I spend thousands of dollars more upgrading my musical components, I do believe I will feel any desire to upgrade my Alpha speakers. Every speaker in this family is amazing. My 1200s subwoofers are extremely tight and powerful. My center channel is full bodied and detailed. If you can find Alpha speakers on sale at a fraction of the retail price, you will not be sorry. Happy Hunting :)

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Price Paid:    $375.00

Purchased At:   American TV

Similar Products Used:   Infinity Primus 360s, Magnepan MG12



Overall Rating:5
Value Rating:4
Submitted by bob falfa a Audio Enthusiast from

Date Reviewed: March 11, 2005

Strengths:    great sound for any thing you throw trough them

Weaknesses:    none so far

Bottom Line:   
have 4 Alpha50's with the Alpha37C center and the Alpha1200 sub and a entra back center and exrta entra sub all on my HT set up, powered by a Onkyo TX-SR600 and like all Infinity owners know there is a breaking period and then it's crank it up and test them, and i must say, very impressive! mine are all bi-wired with "good wire" and the mid and upper ends really do sound much better,the most impressive part is the center the 37c which is just plain the best "as of this writing" center i've EVER heard anywhere in my life!!! go check it out and hear for yourself...

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Similar Products Used:   JBL's.... other Infinity's




Reviews 1 - 5 (9 Reviews Total) | Next 15

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