Mackie SRM450 Active PA Speaker  

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The Mackie SRM450 is a great powered PA speaker that gives bands studio-quality sound onstage. It's a 2-way, biamplified, optimized active system that needs no external power amp. Powered by FR series... Click To Read More About This Product

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The Mackie SRM450 is a great powered PA speaker that gives bands studio-quality sound onstage. It's a 2-way, biamplified, optimized active system that needs no external power amp. Powered by FR series 300W (for lows) and 100W (for highs) amps; with a Linkwitz-Riley electronic crossover; a 300mm (12") long-throw, low-frequency transducer; precision titanium compression driver; and a maximum dispersion horn. Uses Mackie's Servo Feedback Controlled Woofer technology. 51 lbs.

  • 2-way bi-amplified, optimized active system
  • Built-in precision 24dB/oct. Linkwitz-Riley electronic crossover
  • High-output precision titanium compression driver
  • 300mm long-throw low frequency transducer
  • Studio-quality maximum dispersion horn design
  • High SPL Output/Low Distortion
  • Electronic Time Correction, Phase Alignment, & Equalization
  • Servo Feedback controlled woofer
  • Tough, impact-resistant, lightweight polypropylene enclosure
  • Frequency Range (”10 dB): 45 Hz ” 20 kHz
    Frequency Response (”3 dB): 55 Hz ” 18 kHz
    Maximum SPL Long-term @ 1m: 124 dB
    Crossover: Linkwitz-Riley electronic crossover
    Input Protection: RFI and Level protected
    Design: Asymmetrical Trapezoidal
    Material: Polypropylene
    Finish: Grey textured
    Handles: One on each side, one top
    Grille: Perforated metal with weather-resistant coating
    Dimensions (H x W x D): 26" x 15.4" x 14.8"
    Weight: 51 lbs.
  • Customer Reviews

Review Snapshot

by PowerReviews

(based on 79 reviews)

Ratings Distribution

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  • 1 Stars



Most Liked Positive Review



All of the previous reviews are absolutely true! Try them out at your nearest music store. I first heard these speakers at a gas station along a very noisy/busy highway. With my...Read complete review

All of the previous reviews are absolutely true! Try them out at your nearest music store. I first heard these speakers at a gas station along a very noisy/busy highway. With my window rolled down, the DJ was cranking them at a nominal level to a point where I could hear the highs, mids, & and almost ?feel? the bass projected all the way out to the highway from inside my car! So I turned around, pulled into the gas station, & asked the DJ, "Where's the sub?". Surprisingly, he was only using a pair of SRM450's on tripod stands raised to 6 feet high ? dat?s it! I?ve been using these speakers + an SWA1801 sub as a drum monitor (electronic & acoustic), keyboard monitor, FOH mains, home stereo replacement speakers in conjunction with a Mackie1202 mixer. It?s the last speaker you?ll ever need. With all the built in electronics, you?ve a built-in soundman in the speakers, Plug?n?Play and worry free! Sell your old speakers and BUY SRM450?s NOW!!


Most Liked Negative Review


Not built for the road!

We have been using these mackies for our blues band for over 5 years.The original Mackie dealers have sold to a bigger company and maybe they will figure out how to make their self powered...Read complete review

We have been using these mackies for our blues band for over 5 years.The original Mackie dealers have sold to a bigger company and maybe they will figure out how to make their self powered speaker design last through a couple of years of one night gigs in bars where the cabs have to be moved in and out and then stored. I noticed all of the comments on this product were from musicians who have the system in their church where it never gets moved. But my band plays alot of one nighters and the mackie cabs have not been able to hang in there.We have had quite a few problems with getting them repaired as well as having to use our monitors as mains, and having no monitor for ourselves at a show when several of these incidents have occurred.The Mackie system costs too much to keep a spare on hand for when this happens.Great sound quality but they have a way to go before I would suggest that a working musician rely on it.

Reviewed by 79 customers

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(1 of 2 customers found this review helpful)


best bang for the buck

By Anonymous

from Undisclosed

I have been DJing for several years and have worked with various PA/DJ sounds systems. After hearing the SRM450s during various events I already knew the quality and performance. Crisp highs, tight lows, and sophisticated looks of the SRM450. I own a pair and they are pushed hard on a regular basis,but never fail. Just wish Mackie made these in 15" otherwise you will need a sub for larger venues of 300+ people or for added bass for specific genres.


pro quality at low cost

By audiopro

from Vancouver, WA

I've been in the audio field (musician, audio engineer, audio contractor & consultant) for over 35 years, and have used more than a few different brands of PAs in my time. NOTHING in this price range can match the Mackie SRM450s, either in quality or power! They're light weight, and easy to set up quickly. (They offer a few control options, for those who know how to use them, but they can also be used "plug & play".) The closest match, in sound quality and power (in my opinion) are EAWs (entry-level cost about $2,000/speaker). We played a gig once, in a venue that holds about 350 people. It was a rock-style show, with matching volume, and we only had 2 SRM450s, but they didn't have any problems keeping up. (The band included 2 keyboardists, 3 guitarists - one using a Marshall 1/2 stack, bass, drums, and 6 vocalists. We were running about 90-100dB, on an open stage, using 4 monitor mixes. Basically, pretty loud!) The interesting thing about that gig is we didn't use any extra EQing, just the channel EQs (3-band, with single mid-sweeps)! In non-tech terms, I mean that these speakers will work like a champ for ANYONE, whether you know how to operate a sound system or not! That's the proof that the technology behind them was created by the best speaker builders in the world - RCF. I haven't tried the Version2 speakers yet, but I may get the chance to install them into the next church system I up-grade. Lookin' forward to checking 'em out!

(2 of 2 customers found this review helpful)


An Army Musician

By Hollywood-KoDjD

from North Carolina

I have been using these speakers for 6 years, I have used them in shows all around the world. They are tough enough to handle 2 deployments to Iraq and Afghanistan, transported in armored humvees around the rough terrain and every time I set them up they work perfectly and put out enough sound to entertain hundreds of troops at a time. The sound is superb, clean crisp and great top and bottem end.



By NepRock

from Denver, CO

I did an 800 audience show with 4 of these baby's as front of the house speakers and it did an awsome job. Didn't even use sub woofers coz' I was on the budget... who needs a subwoofer unless you're doing hip/hop right??? I just rent one for that purpose. They are a little expensive but are worth every penny. I had a mistake during practice and had a big feed back or pop type of sound and the speakers went out. I was like aaahhhhhh!!!... Then I turned it off and turned it back on and it was fine... The compresser driver thing or what ever it is really works to protect the speakers.BUY THIS UNLESS YOU ARE LIKE A REALLY BIG SHOP PRO OR SOMETHING then your record lable will pay for big stuff anyways.



By Purrfectdj

from South Bend, Indiana

I've been a mobile DJ for 27 years, and have always believed that the Crown Amplifier and EV Speakers were the tops! I test drove a set of Mackie's for a Saturday Wedding, on Sunday I purchased two SRM450's and a matching powered Mackie Subwoofer. That was two years ago. I won't perform with anything else! Clean, crisp, lots of ooompf, even for the weddings of 400 people. Mackie = The Best!

(1 of 1 customers found this review helpful)


These are ok, v2 is better


from Miami, FL

I just bought the newer v2 generation of the SRM450 but have heard and played through these a lot in the past! I could not believe how much clearer the new v2's sound when I play EVERY style of music through them (no matter what volume). I was hesitant to buy them because of the blue color and the price but honestly I needed to stop carrying my amp rack and heavy passive speakers. The dark blue can only be noticed in daylight but they look great, at night they blend in and look like black speakers. The new v2's sound a lot clearer than the original SRM450 and are noticeably lighter (big plus). I pushed them hard for over 4 hours when I first got them in and there was barely any heat coming from the amp on the back (room temperature was about 78 degrees). I have not seen the peak light turn on no matter how loud I put them and the sound is AMAZING! If you want to receive compliments from your audience and lighten your carrying load when traveling, the v2's are the perfect speakers for you! I recommend a subwoofer to fill in the bass but even alone they hit hard as low as 55hz. I am very satisfied with my purchase and will most likely buy another pair in the future. If you have any thoughts or questions about the new Mackie SRM450v2, just ask me!

(1 of 1 customers found this review helpful)


Product Good, Service Sucks

By frytlon

from Bethel, ME

Sound quality is excellent. Both highs and lows are crystal clear. However, I had an issue with one after about a year of use. It happens. However,Mackie does not repair your unit, they send you a "refurbished" unit from their inventory. The speaker I had was pristine. I hung it in the lounge on the day it arrived, and it had not been moved since. I use it only for piano and vocals in a small lounge. Not a scratch, and the speakers were never driven past half volumn. The unit I received had obviously spent a great deal of it's life in the back of a van. Scratches, gouges, dents in the speaker cover. Overall, it looks pretty rough. After talking to customer service, they promised to get back to me on a resolution. I am still waiting.



By J-Pit

from WI

We have ran these speakers up-to 72hours straight, never had a problem. The sound is incredible. I have no need to ever look at or use a different speaker.


i made a good choise

By Ray-1MJZ8

from Aruba

Hi my name is Ray Im a singer and I have my own band. I perform almost every day and I m using the mackie peakers for my sound and I have to tell you, for me this is one of the best in the world. It delivers loud and clear sound on all kind of songs that I play. Thank you mackie.


Very impressed

By Great-bLDNJ

from california

Our band played in scotland this summer, and the PA's we played through the first couple of shows were insufficient. We decided on impulse to buy a pair of these while at a small music shop in scotland. Amazing cut and clarity, these sliced right through a mesa dual rectifier, swr full stack, and a mapex saturn drumset. They just have a nice crisp sound with great transient response and full open vocals. I've always been a JBL or Peavey man, but I was amazed by the volume and clarity of these. We donated them to a local church at the end of the trip. We were sad to part with them.

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