Become a member
Become a member

or
Continue with Google
Log in
Log in

or
Log in using a Google account
Add this product to
  • Mon ancien matos
  • My current gear
  • My wishlist
Alesis RA-150
Images
1/88

Alesis RA-150

Monitor/Speaker Amplifier from Alesis .

15 reviews
Price engine
Classified Ads
Forums

Annonces Alesis RA-150

Send me a notification via email whenever there is a new ad on this product

Images

Reviews

Average Score:
( 2.7/5 based on 15 reviews )
3 reviews
20 %
2 reviews
13 %
3 reviews
20 %
2 reviews
13 %
5 reviews
33 %
Write a user review
Value For Money :
ovni612ovni612

Good, but with a very short life span

Alesis RA-150Published on 12/02/14 at 00:02
The right channel gave up on me after only one year. Luckily for me, the reseller replaced it for me even though I had no warranty anymore... It had expired some days earlier!
But one year later the problems came back: Crackles and signal dropouts, both on the right and left channels. Very annoying for monitoring and listening.
It seems to be a well-known issue of this product, which the resellers tend to keep to themselves...
Despite its good audio quality, I advice you against it!
I would certainly not buy it again.
I would go for some active monitor speakers.
»
ericthegreatericthegreat

alot of power

Alesis RA-150Published on 12/12/11 at 00:26
I've had my Alesis RA 150 for about seven or eight years. It came into my hands in an unlikely fashion and I have been using it in a variety of ways since I got it. It is a compact dual channel power amplifier, good for power monitors that may be un powered, or for using it as an head for a bass or guitar cabinet. It has both XLR and 1/4 inch outputs to send to a cabinet or speakers and it also has connections for speaker wire. In the front of it there is a headphone jack and a power switch. It then has a volume knob for each channel with green and red LEDs to show output level and overloading. I have used this amplifier successfully in a few ways. Right now I am using it to power a pair......
Read more
I've had my Alesis RA 150 for about seven or eight years. It came into my hands in an unlikely fashion and I have been using it in a variety of ways since I got it. It is a compact dual channel power amplifier, good for power monitors that may be un powered, or for using it as an head for a bass or guitar cabinet. It has both XLR and 1/4 inch outputs to send to a cabinet or speakers and it also has connections for speaker wire. In the front of it there is a headphone jack and a power switch. It then has a volume knob for each channel with green and red LEDs to show output level and overloading. I have used this amplifier successfully in a few ways. Right now I am using it to power a pair of Yamaha NS-10M studio monitors and it works flawlessly for this. In the past I have used it as a bass and guitar head by plugging my instrument into it and sending the amp to a speaker cabinet. While I didn't get as much juice out of it in this application that I would have liked, it did the job. I used it for mostly bass guitar as this worked much better than guitar. However, this unit is probably really designed to power studio speakers, and works best in this application. The price won't make you dig too deep, and I'm not sure you can find too many of these around, but if you can find one and need a compact power amplifier for your monitors, I definitely recommend it! While not extremely versatile in its use by any means, what it does do, it does it well and has a pretty good amount of power for a single rack unit. I recommend the Alesis RA 150 to anyone on a budget looking for great quality.
See less
»
Le dLe d

Alesis RA-150Published on 03/18/07 at 11:07
Hi, I'm D.

I bought this amp to set up a decent home studio (almost 6 months ago). I invested on the RA150 and the Alesis monitor one mk2 after the guys at my local shop recommended it to me.
The result is really good!!!

Nothing to say about the brasses (jazz), classical music violins and layers, the kick and snare drums (hiphop) come through very nice, and don't even get me started with the basses!
They are almost noiseless and even if you ever hear some noise it's probably due do how that particular sound was recorded.

To be honest, this gear has really made me develop my chops, both in terms of songwriting and mixing.
So I really recommend this amp with the Alesis mk2!!!

EXCELLENT......
Read more
Hi, I'm D.

I bought this amp to set up a decent home studio (almost 6 months ago). I invested on the RA150 and the Alesis monitor one mk2 after the guys at my local shop recommended it to me.
The result is really good!!!

Nothing to say about the brasses (jazz), classical music violins and layers, the kick and snare drums (hiphop) come through very nice, and don't even get me started with the basses!
They are almost noiseless and even if you ever hear some noise it's probably due do how that particular sound was recorded.

To be honest, this gear has really made me develop my chops, both in terms of songwriting and mixing.
So I really recommend this amp with the Alesis mk2!!!

EXCELLENT value for money!!!
Would I buy it again? Yes, yes, yes!!!! (however, if I had more money I would look at more pricey options).

To conclude, they are awesome for computer music, songwriting, mixing, hip-hop and r&b recordings...and they allow you to get a good home-studio quality.

Edit from June 2010
After moving it with this heat, it won't power up.
Then, once I got it sounding again, sound was intermittent.
Sound just came on and off, in other words, impossible to use to make any music.
I hope it's only a false contact or the tube that needs to be replaced. I'll go tomorrow to the shop to see what's wrong.
It's a real pity because I was very satisfied with it.
It seems I'm not the only one with this issue, so its quality certainly leaves a lot to be desired.

I'll tell you more in a couple of days and revise my review, if necessary.
See less
»
No::SwingNo::Swing

Alesis RA-150Published on 04/08/07 at 12:18
This is the first time I write a review here, despite several purchases, because the manufacturing quality of a product rarely surprises me, considering its price.

I was (very) pleasantly surprised by this amp. I originally bought it for a small bar. Since I didn't need too much power, I opted for an entry-level studio amp, with the idea of having the best possible quality for the same price.

And well, it didn't disappoint me! I stumbled unto an extremely well-conceived product. The outputs with servo-adjustment guarantee a sound without any noise, regardless of the level. After opening up the amp, I was pleasantly surprised by the size of the power supply, which guarantees a realistic......
Read more
This is the first time I write a review here, despite several purchases, because the manufacturing quality of a product rarely surprises me, considering its price.

I was (very) pleasantly surprised by this amp. I originally bought it for a small bar. Since I didn't need too much power, I opted for an entry-level studio amp, with the idea of having the best possible quality for the same price.

And well, it didn't disappoint me! I stumbled unto an extremely well-conceived product. The outputs with servo-adjustment guarantee a sound without any noise, regardless of the level. After opening up the amp, I was pleasantly surprised by the size of the power supply, which guarantees a realistic performance (250 VA for a 2*75W amp is rare at this price point!), unlike many inexpensive amps (I had an unfortunate experience with a no-name amp that cost 100 euros and supposedly delivered 2*200w with a 75VA ... what a joke) .

I insist on this point because it's important from a reproduction point of view and even some renown monitors (like the new active Genelecs) feature undersized transformers. The amp has an extremely well-conceived discreet circuit, which you can tell from the sound! Compared to a basic, 80€ Hitachi hi-fi amp (everything I had at my disposal), it's like night and day, in terms of noise, precision and power, despite the Hitachi being rated at a higher output power.

In short, there's no trickery in terms of quality with this unit, which isn't the case with many products at this price point, even from renown manufacturers. It really makes you want to have passive monitors, even though you lose the advantages of bi-amplification, and there aren't many good passive monitors.

So, if you are looking for a quality amp, be it for studio or PA, and even for home use (if you don't need the embellishments of a hi-fi or home-cinema amp), go for it!
See less
»

Tech. sheet

  • Manufacturer: Alesis
  • Model: RA-150
  • Category: Monitor/Speaker Amplifiers
  • Added in our database on: 05/25/2002

We have no technical specifications for this product
but your help will be much welcomed

»

Manuals and other files

Other categories in Amps & Monitors

Other names: ra 150, ra150

cookies
We are using cookies!

Yes, Audiofanzine is using cookies. Since the last thing that we want is disturbing your diet with too much fat or too much sugar, you'll be glad to learn that we made them ourselves with fresh, organic and fair ingredients, and with a perfect nutritional balance. What this means is that the data we store in them is used to enhance your use of our website as well as improve your user experience on our pages (learn more). To configure your cookie preferences, click here.

We did not wait for a law to make us respect our members and visitors' privacy. The cookies that we use are only meant to improve your experience on our website.

Our cookies
Cookies not subject to consent
These are cookies that guarantee the proper functioning of Audiofanzine and allow its optimization. The website cannot function properly without these cookies.
Website preferences
We store your preferences so that you do not have to re-enter them every time your come back (forums options, dark or light theme, classifieds filter, standard or buzz news, newsletters popups...).
Log in
This one makes sure you don't have to re-enter your credentials every time you visit Audiofanzine.
Analytics
This data allows us to understand the use that our visitors make of our website in an attempt to improve it.
Advertising
This information allows us to show you personalized advertisements thanks to which Audiofanzine is financed. By unchecking this box you will still have advertisements but they may be less interesting :)

We did not wait for a law to make us respect our members and visitors' privacy. The cookies that we use are only meant to improve your experience on our website.

Our cookies
Cookies not subject to consent

These are cookies that guarantee the proper functioning of Audiofanzine and allow its optimization. The website cannot function properly without these cookies.

Website preferences

We store your preferences so that you do not have to re-enter them every time your come back (forums options, dark or light theme, classifieds filter, standard or buzz news, newsletters popups...).

Log in

This one makes sure you don't have to re-enter your credentials every time you visit Audiofanzine.

Analytics

This data allows us to understand the use that our visitors make of our website in an attempt to improve it.

Advertising

This information allows us to show you personalized advertisements thanks to which Audiofanzine is financed. By unchecking this box you will still have advertisements but they may be less interesting :)


You can find more details on data protection in our privacy policy.