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Infinity Systems Alpha 25ES
3 Reviews
rating  5 of 5
MSRP  350.00
Description: These speakers are perfect for use as surround speakers in an Infinity Alpha multichannel setup! A wall-mountable Alpha 25ES offers two angled driver arrays, with a 1" C.M.M.D. tweeter and 5-1/4" C.M.M.D. driver on each array. We sell the Alpha 25ES individually; just buy two speakers for use as surrounds in a 5.1-channel system, or three or more for use in a 6.1- or 7.1-channel system. <p /> These speakers are ready to give you the best possible surround sound, based on speaker position and listening preferences. You can set each speaker for a dipole, bipole, or monopole configuration. The dipole setting means your speakers perform "out of phase," and it's great for creating a diffuse field of sound if your surrounds are mounted to the sides of your listening position. Choose the bipole setting if your surrounds are behind your listening position — this permits the speakers to fire "in phase" and produce clear off-screen effects. The monopole setting actually turns off the drivers on one array and lets you enjoy directional sound from the single active array perfect for multichannel music listening! <p /> Key Features: <p /> <ul> <li>acoustic suspension</li> <li>frequency response 60-22,000 Hz (ñ3dB)</li> <li>8-ohm impedance</li> <li>sensitivity 87 dB</li> <li>handles up to 125 watts</li> <li>black or white vinyl finish</li> <li>5-way binding post connectors</li> <li>14"W x 14-1/2"H x 7-3/8"D</li> <li>warranty: 5 years</li> </ul>


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Reviews 1 - 3 (3 Reviews Total)

User Reviews

Overall Rating:5
Value Rating:5
Submitted by JKCoop a Audio Enthusiast

Date Reviewed: November 13, 2003

Bottom Line:   
Excellent review from "Hometheaterjunkie" below! I emailed him with more questions and he was able to answer anything about Infinity's new technology! My opinion? Absolutely the best dipole speaker available for surround sound! Buy them! You wont be dissapointed!

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Used product for:   1 to 3 months

Duration Product Used:   Audio Enthusiast

Product model year:   2003

Price Paid:    $700.00

Purchased At:   Ultimate Electronics



Overall Rating:5
Value Rating:5
Submitted by theatrejunkie a AudioPhile

Date Reviewed: November 8, 2003

Bottom Line:   
First off please understand I listed my self as an AudioPhile because I love Home Theater and it has become my hobby over the past three years but, there are many of you that visit this site that know much more than I do so I am interested in more educated reviews on this particular speaker than mine. First off I am the same person as the above review requesting someone to review these speakers, well... I finally bought them a little over a month ago @ Ultimate Electronics as I made an offer of $500.00 for the pair, and they were listed @ $349.99 a piece or $699.98 a pair. You can find them on the internet for $500.00(pair) all day but I wanted to buy them from a reputable seller.I auditioned the Alpha 25es at three different stores as they all had different room dementions, ceiling height's and in each room the Alpha 25es were placed in different areas as well. They were demo'ed in a 5.1 configuration as the rears using the bipole setting, 6.1 placed at the rear center also set on bipole, and 7.2 placed as sides set on dipole about 7ft' high in a room with 9ft' ceilings and 22ft' in length by 13ft' wide. This was the closest room size to my Home Theater. I was also interested in utilizing the Infinity's as side speakers in my HT set up.My system is'nt by far the top of the line, but is sufficient for what Im trying to acheive. My system is as follows:
Denon AVR-3802
Denon-900 DVD player
Infinity Interlude 36c center channel
Infinity IL40's Mains
Infinity IL10's rears
Infinity Alpha 25es sides
Infinity IL120s Sub
Monster Cable M-series biwire cables-main
Monster Cable M-series for center channel
Monster Cable 400 coax 10ft' for Sub
Monster Cable XP 16 guage for all surrounds.
The Alpha series as most of you know is the successor of the Interlude series and at the time I bought my Interludes, Infinity did'nt make a Bi-Di pole speaker so I was using Klipsch RS-3.II as my sides. The woofer technology is very similar in the Klipsch (ceramitalic) to that of Infinity's C.M.M.D. tech although Im sure you more experienced guru's are thinking "but the tweeter tech is completely different! Yes I know, but it was the best sonically matched speaker at the time. Now, first off the construction of the cabinet on the 25es is quite impressive with a 1 1/2in" baffle on all sides of the speaker hence the heavy weight of 18lbs each. 2nd, this is basically two seperate speakers built into on solid cabinet with the tweeter's and the woofers reversed so they can work out of phase hence providing the Di-pole selection. As you read reviews on these speakers the dipole setting (so they say) is primarily for a 7.1 configuration to fill in the gaps between your front speakers and your rear speakers running out of phase so its hard to localize the sound giving your theater a if you will 360 degree surround soud experience. Bi-pole (simply both speakers playing in phase together) as they say it's best to use this setting when using these in a 5.1 configuration being used as rear speakers. Obviously monopole is what it is (one speaker playing as the other is turned off in this setting). Im really not sure why anyone would use this setting rather than just buying a pair of rear speakers. So, as you do your research on these speakers you will find that most if not all reviews will say the samething. Im here to tell you, I after several hours of testing highly suggest (if using these as side speakers) trying the bipole setting! Yes you can localize where the sound is coming from as you can from every other speaker in the room, but I beleive they provide a much more detailed sound and mix much better than the Dipole setting. Fact of the matter is you can decide! No matter what setting you choose, these speakers sound fantastic period! If your still not convinced, please email me for more info. Im very familiar with the Ceramic diaphrams as I've definitely done my research over the past couple of years and I beleive you will see more of this technology in other medium to high end brand names soon to come, but no one will be able to use the exact same technology since Infinity has a patent on this design. Don't pay $700.00 for these if you can avoid it. End result, Infinity in my opinion has redefined cone technology with ceramic and metal resulting in a very rigid yet extremely sensitive (1-decible) woofer with an impressive magnet attached inside weighing in at 5lbs on each woofer.The 1in" tweeter produces extremely clear hi's up to 20khz . And I must add that the 5-1/4 in woofer has quite a bit of punch to it! Nice job Infinity!

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Used product for:   1 to 3 months

Duration Product Used:   AudioPhile

Product model year:   2003

Price Paid:    $500.00

Purchased At:   Ultimate Electronics



Overall Rating:5
Value Rating:5
Submitted by Trpnmich a Audio Enthusiast

Date Reviewed: June 28, 2003

Bottom Line:   
Will someone please review these speakers if you have them? Im wanting them but dont want to purchase until I've read some reviews

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Used product for:   Less than 1 month

Duration Product Used:   Audio Enthusiast

Product model year:   2003

Purchased At:   o




Reviews 1 - 3 (3 Reviews Total)

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