BMR speakers

Jump to Latest
S

Stallion63

Member
Joined 2019
#1
Hi all! Has anyone here tried using the Tectonic full range BMR speakers? I know they're cheap.Just asking for opinion.

I bought a pair of the 3-1/2" TEBM65C20F-8 a couple of years ago and briefly tested them before putting them in storage.
Connecting them directly to my 2 way tower speakers' binding posts without any crossovers,they seemed rather good with male voices but I don't think they can go up to the 20Khz they are rated at. Any thoughts on them?
 
#7
Cambridge Audio also uses similar BMRs in their Minx and Aeromax range of speakers. I read somewhere that Cambridge Audio also uses the BMR drivers from the same manufacturer.
Has anyone contacted PE regarding the dips in the response graph and if the frequency range is accurate on these BMRs?
 
Last edited:
#8
DickHertz said:
Dennis Murphy of Philharmonic Audio appears to have used it in his BMR monitor. It's gotten universally excellent reviews.

Philharmonic Audio BMR Philharmonitor Bookshelf Speaker Review | Audioholics
Click to expand...


The used one is the smaller TEBM46.


IMHO the BMR65 is fun and really good for small satellites in hometheater.
If you can spend some space a tml with two of those drivers works well.
Biggest issue are the lows especially if you don't use them as desktopspeakers.
If you can get your hand on tiny sealed boxes, they are happy plaing in 1l.
A friend of mine tried to improve the sound and used them as midrange speakers and extended the tops with cheap tiny Dayton AMTs.
Biggest problem, you need a 18db or 24db crossover.


Biggest Pro: no beaming issues
 
#10
I have the smaller ones. They still exhibit the bad dip, and there's nothing you can do about that.

They also do not like playing low. Below 300Hz, distortion rises very quickly.

Also, their limited sensitivity is kinda..... Limiting!

Maybe they would make great headphone drivers? 😀
 
#12
perceval said:
I have the smaller ones. They still exhibit the bad dip, and there's nothing you can do about that.

They also do not like playing low. Below 300Hz, distortion rises very quickly.

Also, their limited sensitivity is kinda..... Limiting!

Maybe they would make great headphone drivers?
😀
Click to expand...

I wasn't looking for the LF response from these little buggers when I bought them. Being "BMRs", I just bought them to test their wide,off axis response.From my experience,they seem to be more suited for midrange applications in a 3 way. But others have had good results in building desktop and small full range speakers.
 
#13
I like the TEBM65's, made a few different things with them. Cant say i like the TEBM35's, they didnt live up my expecation at all.

3rutu5 Bookshelf (or monitor/PC speakers?) -

Techtalk Speaker Building, Audio, Video Discussion Forum

3rutu5 Boombox -

Techtalk Speaker Building, Audio, Video Discussion Forum

both were tuned to either F0 of 58hz and 60hz. In the right size enclosure, i cannot get them to distort, but only using a DTA-2 tri path amp in one and a KAB230 in the boombox. THey got plenty loud enough for me and i like them. I had some help putting a BSC in both and i think that made the difference.

but each to their own.
 
#14
That's some pretty awesome build there. The enclosure is over built imo!🙂
I just got pvc end caps at the back to test and they were quite impressive right out of the box. Later I wired them directly without crossovers to the binding post of my 2 way towers to test the claimed full range ability. They did well for dialogue and male voices while watching movies. But the higher frequencies were lacking while playing 2 channel music. No where near the claimed 20Khz.
How did yours workout?
 
#15
Karl71 said:
Its flaws are quite disappointing. I can deal with response peaks, but deep dips, especially in the midrange, are unacceptable for a single-driver.
Click to expand...

I'm not sure how accurate the graph on P.E. is,but there's a review and build of the 3 1/2" tebm65 on youtube by JoeNtell. According to his test results,the frequency response graph looks different with no peaks and dips all the way to abt 20KHz.
 
Last edited:
#17
Stallion63 said:
That's some pretty awesome build there. The enclosure is over built imo!🙂
I just got pvc end caps at the back to test and they were quite impressive right out of the box. Later I wired them directly without crossovers to the binding post of my 2 way towers to test the claimed full range ability. They did well for dialogue and male voices while watching movies. But the higher frequencies were lacking while playing 2 channel music. No where near the claimed 20Khz.
How did yours workout?
Click to expand...

i like them, but no audophile 🙂

for me i was getting stuck into woodworking more than speaker building and was enjoying kerfing (bending timber). The PC build is my daily driver and maybe if i was to rebuild them, put in a tweeter but hey i wanted a logitech replacement and replace them they did lol, really comparing apples and oranges.
 
#20
yeah you are probably right, i just bought pine that was 19mm thick as it was the width i needed and quite cheap at my local hardware joint.

You may have noticed the divider on the boombox was 30mm and was a piece of scrap ply i had laying around haha.
 
You must log in or register to reply here.
Top Bottom