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Vintage Jamo Power 120B: My Impressions

post #1 of 11
Thread Starter 

The following is a review/article about these little known speakers that I personally refurbished.

 

Jamo Power 120B - Made in Denmark

 

I got these for free because the woofer foam surrounds were TOTALLY rotten and gone. 
As I didn't spend any money on them I decided to research if fixing them up would be worth the money - a quick internet trawl put these at a value of around 50-100 euros depending on the condition, so I decided buying foam surrounds would make a fun project and that these speakers would be worthy of it. Although it was a slight gamble as there is very little information on the interwebs about these 'budget' hifi speakers.

 

_DSC36322.jpg

 

My other findings are that these were in production between 1980 1983, so these are somewhat vintage.

I don't have a lot of reference points as I listen mostly to headphones but overall I'm impressed with the sound.

My best comparison would be to Audioengine A5 although I refunded them when they went faulty, but I had them for over a year. I actually prefer these (although they are about twice the size) - so putting aside comparisons of scale and dynamics (which I believe are naturally superior due to the size), I very much prefer the smooth sound of the paper cone and the FRONT ported design. The bass is actually controlled, present, fast and musical, which is basically impossible to achieve with the older Audioengines that blast uncontrolled bass from the rear port. 

The tweeters are interesting as I didn't expect a horn design to produce such an exciting but accurate/natural sound. The low bass extension and super high range extension both seem to roll off quite early but not too dramatically, but this doesn't stop them being super fun. The only thing lacking is the warmth in the mids I'm used to from my Grado RS2is and AKG k141s - the mids are however very natural, present and smooth but just a little colder/thinner then I'm used to.

 

I compared them in an A/B test with my Eltax Concept 200 floor standing speakers (which are coincidently also Danish but a lot more modern although super-budget) and the Jamos are superior in every way. The only thing that I might miss are the super deep rumbles of sub bass that large rear ported floor standing speakers produce for some 'epic' movie scenes and explosions.

 

If anyone else has any experience with these speakers I would be interested to hear your opinions. 

post #2 of 11

Have the same speakers. I got them from my dad because he didn't use them anymore. The foam vas rotten so i replaced it (used duct tape a little while :P ). I think they sound amazing (i went from logitech x540). The hi's and mid's are pretty good , the bass is a litte weak but it's pretty good if you add some subs . I have one 12' and one 15'' running along with them. And they goes pretty loud even whit just 40 watts on them (jamos only). They are stupidly lightweight  and don't look that stupid. 

post #3 of 11
Thread Starter 
I just use them with a 12-band EQ, and with a little tweaking I get all the bass I need, but my living room is tiny so it's easy to fill and I don't listen to much EDM.
I hope you're not using duct tape any more biggrin.gif
post #4 of 11
Quote:
Originally Posted by GREQ View Post
 

Quite sadly when i used the duct tape, the cone got a little bit destroyed. It was still better than the sound and the strange noise the voice coil made when the was notting around the cone. i think my amplifier is kinda weak because i think it has 4x40 watts , and i don't take the risk of bridging it (could i destroy it if i do?). instead i want another pair :) . What amp do you use?


Edited by ShMaX - 7/7/13 at 3:55pm
post #5 of 11

Btw: It kinda confusing , because on the front of my speakers (on the metal think where the frequensy are and number) It says Jamo Power 120 , but on the back it says Jamo Power 120b so im not shure if it is 120 or 120b :P . My dust cap is also the same color as the cone (brown) , while your's is black.  

 

The surround on my speakers ar mutch thinner than yours. I bougth the foam rings from http://www.ebay.com/itm/2-x-Foam-ring-for-Jamo-Power-120-130B-150-and-155-/270558643004?hash=item3efe8d433c


Edited by ShMaX - 7/7/13 at 3:55pm
post #6 of 11
Thread Starter 

They're probably the same speakers but different production runs. 

Yours might have been an earlier or later run. No way of knowing really. 

 

I use a vintage Fisher CA-863, which is a 70W amp and easily gets the job done. 

No idea about bridging - wouldn't that also halve the load? That could be bad for the amp. 

 

I probably bought exactly the same foam redface.gif - still works perfectly over a year on. 

 

As a side note, it's actually REALLY bad to play speakers without foam - when the voice coil just rattles around, that can do irreparable damage to the voice coil. 

Sounds like your speakers have had a rough time. frown.gif

post #7 of 11

actually , i may have played on them about a 2 years with very low bass (or not even using them). I may have use them with the duct tape for half to 1 year. The duct tape did not destroy the voice coil (more like the cone)

 

So i will say , they may got a rough time , i don't know how they where treated before i got them.

post #8 of 11

Have you played the speakers any loud? Since you seem to got twice as much output power on your amp. I'we had max power output on my amp , and it's so loud i barely cant stay in the room.

post #9 of 11
Thread Starter 
Quote:
Originally Posted by ShMaX View Post

Have you played the speakers any loud? Since you seem to got twice as much output power on your amp. I'we had max power output on my amp , and it's so loud i barely cant stay in the room.

I've never cranked it up because I live in a flat and dont' want to disturb the elderly couple upstairs.frown.gifwink.gif

post #10 of 11

Hi, Could you tell me what size the bass drivers on these are?
I'm looking at repairing a pair of Jamo Power 180Ts and i'm struggling to find a suspension that will work with them.

Thanks,
Road.

post #11 of 11
Thread Starter 

Heya,

The outside diameter of the foam surrounds is about 7 inches or 18cm.

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