M-Theory Music

Great establishment for albums both new and used. As a huge jazz lover; happy to see a jazz section. Although they have a somewhat limited jazz section found a couple of great albums and Michael welcomed me as family. This may not mean much to some folks, however having the albums inserted in plastic albums covers was definitely a plus, for most establishments won’t take the time to do this! Will definitely be back on my next visit through San Diego!!!

Cool little shop. A little pricey. Picked up a Jawbreaker album (bay area punk). Would come again.

This place has changed management and is now worse off for it. The prices are often times high, especially on used vinyl, even compared with vinyl sites like discogs. They have a good selection compared with other record stores in San Diego in terms of indie music, but there are better stores in town for other genres including jazz, world music, blues, r+b, rock, etc.

A very cute and chill music store. They have places where you sit and listen to albums for free and hundreds of records and CD’s which I found cool. The worker on duty was very laid back and kind. I would recommend this to anyone trying to find records or just decent music in general.

Great selection of all types of music on vinyl and very well organized. Surprisingly I found exactly what I was looking for and was in/​out in 5 minutes. The staff was friendly and helpful.

First time visiting M Theory. LOVED IT!!! Great vibe, long haired older dude behind counter was VERY nice and very helpful!!! Felt totally welcomed. They had a great selection of local, popular and classic vinyls.
Most prices were awesome, others were reasonably priced over by MAYBE a dollar which in my book is great!!! A true loal gem.
We bought a couple vinyls and saw some guys setting up some instruments so we hu g out to see what was going in. Apparently a live set!!! It was some band called James Supercave. They rocked. Bought their vinyl. They were really nice too and gabbed with customers and signed merch. Very fun time.

This place is fantastic, great selection and the staff has turned me on too so much great music over the years

HUGE selection of Cassettes, CDs and Vinyls! They have everything from Jazz to Electronica to Hip-​Hop to Death Metal. I went there for the first time last night and I will definitely make more trips in the future. The salesman there was very friendly and helpful.
They even have listening towers!
Highly recommend this music store!

Picked up some gems today! Expect to go back soon. Thanks for some great service and amazing music as I browsed through all the selections

Arrived in SD little over a year ago and this was my first record store visit. Shop has a little bit of everything that you want in a record store: great new vinyl arrivals and large selection of quality used records that you can listen to at their phono listening station. They have some awesome rare records (recently saw Sun Kill Moon’s Benji and Black Crowes first album) that are more than fair when compared to online prices. They also keep a large selection of new and used cd’s, with a huge row of listening stations complete with stools that face out to Washington st. All their merch is priced well and the best part: the staff. Easy going, friendly, knowledgeable– they don’t ignore you or treat you like you’re interrupting their day. Oh yeah, btw, they have very cool instores from time to time!

M-​Theory is my go-​to record store. They have tons of used vinyl in great condition and are always up-​to-​date on new releases. You can pre-​order new releases, as well.
They do in-​store performances, which is a lot of fun to attend, and the staff are always friendly and knowledgable.
Great selection of punk, hardcore, indie rock, hiphop, pop, and miscellaneous stuff. They have some collectors items up on the walls as well.

Really nice local shop.
Despite the tiny size of the place, M-​Theory really manages to pack a wide variety of excellent music in its walls– and at a reasonable price.
The people who work here are friendly — when I’ve been in I haven’t been ignored and was served with a smile when I made my purchases!
Everything is organized wonderfully. Although on my last visit I didn’t find what I came in for, it didn’t take a long time of rifling through stuff to figure that out and I appreciated that.
I found the prices to be reasonable for the area. I didn’t spot any steals but the cost of my purchases were comparable what I would have found at nearby stores.
And again, the selection is great. M-​theory offers a lot of better known titles to sink your fangs into but if it is GG Allin you’re looking for… They have that too. I can’t complain.
Metered parking is on the street and not too difficult to find and make sure to carve out some time for this place… You’ll be surprised how long you spend here!

With in a few minutes I knew this place felt right. Exactly what a record store should be, friendly atmosphere, listening stations for vinyl and cd broad selection of new and used LPs, 45s and CDs. Surprised by the selection of jazz, used indie (never seen that on vinyl outside of ameba) rarities, bootlegs, lots of classic reissues. Really appropriate prices. Used vinyl 8 – 10 collectibles 20 – 50 new indie and reissues floating around 20. things are in good condition and priced to use. Notes on tags describing honest quality and special notes. Plastic covers on everything. Small selection of turntable supplies. Reminded me of the vibe I would get at off the record and Lou’s pre 2006. Not that those are not still great establishments this place just had there golden days vibe.

I recently was driving to get food in San Diego and noticed this record shop nearby. Finding a parking spot was a little difficult but I didn’t let that stop me from checking them out.
The store itself isn’t too big and the photos I saw on Unilocal made it look bigger. With that being said, this place was awesome! I found some recent vinyls that were more affordable here than at any other place I’ve seen them. I picked up a few things and the clerk behind the counter was really polite and professional.
I will definitely be adding this place to my list of places to stop by periodically for vinyls.
Their CD section was a bit small, so just a heads up if that’s what you’re looking for. Otherwise, check this place out!

This shop excels in the service (as well as the rotating inventory). Joe and Michael are top-​notch associates, and are always helpful explaining genres outside of my known comfort zone. Though reasonably stocked with mainstream rock and such, I would call this store ‘edgier’ than your average brick and mortar.

After hitting a few record stores, my last stop was here. I walked in and it was a bit smaller than I hoped, but ended up leaving with an arm full of records. I loved the selection and found record I had spent weeks looking for. I will definitely be back!

Wow. I never leave here empty handed. They got it all. Who needs amoeba when the chillest record store is right here in San Diego.

This is a review of the del Mar location
Excellent addition to the dried up vacuum of musical culture in the north county. Very helpful staff (Rick) and excellent music selection. Great used records with good quality. Records on wall with decent prices. Can sample records before buying. They’ll seek out releases for you. Support your local record store!!!

I really liked that they had the sound stations where you coils preview albums before purchasing if you’re looking for new tunes.
Small music election but it was a cute shop.
A lot more of current popular music was seen on the shelves (vinyl and CDs) rather than a span over generations. But I’d expect that from a small music store.

M-​Theory, one of the last remaining record stores in all of San Diego.
PROS:
–Fantastic used selection of CDs and LPs
–They seem to always have new releases. I think they backfill every time they make a sale
–If they don’t have something in stock, they can have it ordered for you
–The employees are always friendly and helpful
–Their new website is finally up
–Jimmy Lavalle (the album leaf) was a guest cashier back on 2009’s record store day
CONS:
–A bit cramped, not meant for more than 3 – 4 customers at a time
–Parking f**king sucks! Not their fault but still a negative
This place would’ve gotten a 4.5÷5 if Unilocal allowed for half-​stars. I still love this place and hope you guys support your local record stores