4500 watts of good clean fun.
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JBL 705P / 708P
- Thread starter watchnerd
- Start date
4500 watts of good clean fun.
Like the lcd/oled TV lotto, some die a crib death, while others last for decades.
Maybe before laying down the cash for that new expensive toy,
a short stop at the church of your choice might be prudent. LOL
I'm so unlucky. It's only used for a year, and the frequency of use is very low. And more, there's no warranty by now, I need to pay for repairs.
Thank you!
Thanks!
I saw a SN "P2036-xxxx" on its back. I heard from friends that the product with similar SN seem to have quality problems.
frankzhang
New Member
- Joined
- Sep 21, 2023
- Messages
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I bought a pair of 705p 2 years ago with similar SN with yours. Resently, one of it suddently have big HF noise, yet the LED still green.
Is this true? the product with P2036-xxxx have QC issue?
Rahan
Member
I seek a centre channel with the 2409h. tp match the 708s in front and the 705s in back.
Except for the C211 (which is overkill for me) i can't find a decent one with a decent price.
Am I the only who is confused in the JBL range?
- Synthesis why so expensive ? (compare the SCL-4 with the C211 prices do not make sens to me).
Except for the C211 (which is overkill for me) i can't find a decent one with a decent price.
Am I the only who is confused in the JBL range?
- Synthesis why so expensive ? (compare the SCL-4 with the C211 prices do not make sens to me).
I had all 3 of my 708Ps fail (amp modules died) and one of them failed again after warranty replacement. Luckily, they were under warranty so I got all the amp modules replaced for no charge (I did have to drive back and forth to the service center multiple times).
Even after all this, if I use the power switch at the back of the speakers to turn the speakers off, they come back on with error and don't work. I leave those switches on and only turn off/on the APC power conditioners they are connected to. These speakers sound great though, when they work.
Even after all this, if I use the power switch at the back of the speakers to turn the speakers off, they come back on with error and don't work. I leave those switches on and only turn off/on the APC power conditioners they are connected to. These speakers sound great though, when they work.
Why not a 708p or 705p for center channel?
Rahan
Member
Too bad for amp module reliability problems. Are they well ventilated? A shame there is no way to turn the screen off... reliability was one reason that lead my to the passive version. This and the crazy deal I had on a used pair of 708i and 705i. Ideally I look for something cheaper than a 708. I don't expect to find another deal like the one I had. More important, I have to put the Center speaker on top of my 4245c (it is right under the area of projection) so, if I put a 708 there it will be to hight. I love this speaker but not enough to see it instead of my movies. (It would make no sense to pour it on the side In this type of using.) I would like something thinner.
Some people have had issues. I got mine as refurbs, so there may have been issues before, but they've worked just peachy for several years now, most of that time being on. I don't use them constantly, though.
In my case, if I had to take an educated guess, it’s the amplifier, which is annoying for sure… but it is what it is at this point. I reckon active powered loudspeakers are simply more prone to failure than passive loudspeakers.
5 years of abuse isn’t too bad though and I’m certain the drivers are in excellent condition.
You and I both. I’d imagine they are passive?
I do wish JBL opted for a better amplifier in the 705/708Ps. Hypex comes to mind. Raise the price, I don’t care lol.
HypeX is high performance but not necessarily more reliable. @restorer-john can tell you.
Meyer Sound has been doing active for a long time but the build quality is on a whole new level (and unfortunately like Accuphase, so is the price).
Looking at various images, I am struck by how spaced out everything is on the PCB, the use of big resistors instead of surface mounted ones, and the seemingly disproportionately large heatsinks.
I don’t know what their Class D designs look like.
These photos from a Japanese auction for one of the UPA line of speakers.
Meyer Sound HD1, looking inside
Hello, this is my first post here. Last year I’ve purchased a pair of Meyer Sound HD1 in partially working condition. One LF driver wasn’t working and the amplifier of the other unit was producing some noise time to time, because of a bad joint on one of the rectifiers. I’ve fixed all the...
Rahan
Member
I'm thinking of building a centre channel based en 705/708 compression driver and two boomers from 705 with active crossover. I made a really quick photoshop of the idea. Off course I would put the horn horizontally. What do you think?
Just buy a 705p or 708p and place it normally. Perfect center channel speaker as it.
Agreed. Your better off with a stock 70x placed vertically than the side placed MTM design and it's comb filtering
off axis. JMHO
Tom C
Major Contributor
A 705P is small enough to fit under a screen or monitor in most living room type situations.
