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Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer Reviews

R234W  |  EZ-67022-E-R234W
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This is a great little gizmo for anyone looking to boost up the music of their portable devices. It does exactly as advertised. Makes the sound better without having to put up the volume all the way.This is what I used it with:Media Player: Archos 605 80GB wifiHeadphones: Sharper Image Quiet Place FJ453, which I then will be using it with Grado SR-80sAs I mentioned, there are a few caveats to this:- The battery cover is HARD to take off with just your hands. I recommend using a flathead screwdri...

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer review by Oliver S. Villanueva can be read at Amazon.Com
 
Oliver S. Villanueva
 Rated It 
4.0 out of 5.0   
         
 
Review Date: 01/24/2008
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Review From: User Review
 
100% (12 of 12) Users Found This Review Helpful
 
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Before I plugged in to my iPod, I had the iPod volume at about 75%. With Revolution, the volume is at 30% leaving me with plenty of room to make it louder if needed. Also, due to the volume being lower, the Revolution extends the battery life of the audio device.Revolution looks like a white rectangle box with nothing but a couple of holes for the jacks and two AAAA batteries (that's not a typo). The package also includes two patch cords: one is three and the other is six inches long. When the j...

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer review by Meryl K. Evans can be read at Amazon.Com
 
Meryl K. Evans
 Rated It 
4.0 out of 5.0   
         
 
Review Date: 11/09/2005
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Review From: User Review
 
91% (34 of 37) Users Found This Review Helpful
 
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I'm new in the world of headphone amplifiers, but not to headphones. I purchased this amp as an upgrade from my Boostaroo Portable headphone amp, with which I was very pleased. It excited the audio and I got to really explore some songs that were previously muddy.However, after three days of using the Revolution, I went back to using the lower-end version. The Revolution seems like it took my sound a step back. It exploited all the digital flaws in my MP3s, overdrove certain levels in my los...

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer review by Justin Keller can be read at Amazon.Com
 
Justin Keller
 Rated It 
2.0 out of 5.0   
         
 
Review Date: 09/13/2006
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Review From: User Review
 
87% (28 of 32) Users Found This Review Helpful
 
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As a former reviewer has written, the hiss in this amp is noticible right away, which in itself renders it useless. There is also the added dimension of a not so comfortable headahce, which apparently resuts from a frequency emmited, or just general electricity. My player works fine without the amp, that's how I know.

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer review by P.K. Lipson can be read at Amazon.Com
 
P.K. Lipson
 Rated It 
1.0 out of 5.0   
         
 
Review Date: 09/16/2006
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Review From: User Review
 
85% (17 of 20) Users Found This Review Helpful
 
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Just a small tip to get AAAAs for cheap:Take apart a 9v battery, and boom, you have 6 cheap but great AAAAs that work awhile in this!I've had much better luck Energizers than Duracells, however.[...]

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer review by Pavan Battar can be read at Amazon.Com
 
Pavan Battar
 Rated It 
4.0 out of 5.0   
         
 
Review Date: 08/09/2008
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Review From: User Review
 
83% (5 of 6) Users Found This Review Helpful
 
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I'm using high end Etymotic ER4P earphones (27ohms), and a Treo mp3 player running PocketTunes. This amp is amazing. It not only boosts the volume but notably increases the bass as well. In the past the EQ on my player was kind of useless, but now with this amp I can really use the EQ and dial in the sound just how I like it. The amp seems to slightly muffle the sound a bit, but my music is overall warmer sounding now. Basically it reminds me of the warm sound of listening to a tape, but wi...

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer review by Simon can be read at Amazon.Com
 
Simon
 Rated It 
5.0 out of 5.0   
         
 
Review Date: 01/16/2008
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Review From: User Review
 
100% (5 of 5) Users Found This Review Helpful
 
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Although this product does enhance the volume to a certain extent, the sound quality lacks. I was disappointed to not get the true sound quality projected out of this product.

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer review by JR can be read at Amazon.Com
 
JR
 Rated It 
2.0 out of 5.0   
         
 
Review Date: 11/06/2010
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Review From: User Review
 
75% (3 of 4) Users Found This Review Helpful
 
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This amplifier does exactly what they claim.Pros:Easy to useCompact2 headphone outputsBatteries are held securelyCons:AAAA batteries are difficult to find and a little pricey (order them from Amazon when you order the Boostaroo)Cords supplied are not compatible with 1st generation iPhone headphone jackMust remove input jack to turn off powerBatteries are a little difficult to insertOverall, it's a nice unit that works as advertised.

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer review by tw can be read at Amazon.Com
 
tw
 Rated It 
4.0 out of 5.0   
         
 
Review Date: 01/20/2010
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Review From: User Review
 
100% (3 of 3) Users Found This Review Helpful
 
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I purchased this after already owning an original Boostaroo. All I can say is that this device works exactly as designed. After using both units for some time now, I prefer the original Boostaroo to this version.The original version uses the more common AA batteries and contains an ON-OFF switch; both features that I like.If I were ever in the market for another Boostaroo, I would purchase another original model, not this one; not because there is anything wrong with this model.... I just pref...

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer review by GB Amazon can be read at Amazon.Com
 
GB Amazon
 Rated It 
3.0 out of 5.0   
         
 
Review Date: 12/23/2008
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Review From: User Review
 
75% (3 of 4) Users Found This Review Helpful
 
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I recently bought these and as soon as I recieved it I plugged it into my laptop (comes with AAAA batts.) with a pair of those top model V-Moda earphones (I recommend 'em for good quality and price). Yes, There is a hiss. Why? Because these V-Modas have an Impendance of about 16ohms I believe. This amp works best with ear/headphones with an Impendance between 20-200 ohms. So if your getting a hiss that's likely the case. But the volume of the music does drown that out & reveals details previousl...

Upbeat Audio EZ-67022-E-R234W Boostaroo R234 Revolution Headphone Amplifier & Sound Enhancer review by A. rivera can be read at Amazon.Com
 
A. rivera
 Rated It 
4.0 out of 5.0   
         
 
Review Date: 12/28/2009
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Review From: User Review
 
100% (2 of 2) Users Found This Review Helpful
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