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Bohlender Graebener Neo8-PDR Planar Transducer

Brand:| Model: Neo8-PDR
The Neo8PDR features a push-pull symmetric magnet system that has been designed with the help of Finite Element Analysis software to achieve optimum efficiency/cost performance.

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Product Details

Bohlender Graebener Neo8-PDR Planar Transducer

The Neo8PDR features a push-pull symmetric magnet system that has been designed with the help of Finite Element Analysis software to achieve optimum efficiency/cost performance. It uses the newest grades of neodymium - the "super" magnet material with the highest magnetic energy. The extremely light Kaladex® diaphragm with an etched planar aluminum conductor is suspended in a magnetic field and is uniformly driven by the electromagnetic force providing accurate and immediate reproduction of the input signal. The Neo8PDR does not have heavy voice coils, spiders, glue joints, paper cones and surrounds so there is virtually nothing between the electrical signal and the sound - just an almost weightless diaphragm. Hence these planar transducers do not have cone break-up resonance with associated distortion, phase incoherency or signal smearing that is common for conventional drivers. This allows the Neo8PDR to deliver clean, airy, transparent sound that is inherently natural and musically pleasing.

Product Specifications
  • Tweeter TypePlanar
  • Impedance4 ohms
  • Power Handling (RMS)40 Watts
  • Frequency Response700 to 20,000 Hz
  • Sensitivity92.5 dB 1W/1m
Thiele-Small Parameters
  • DC Resistance (Re)3.60 ohms
Mounting Information
  • Overall Outside Diameter7.88"
  • Cutout Diameter3.50"
  • Depth0.50"
Bohlender Graebener Neo8-PDR Planar Transducer
  • BrandBohlender Graebener
  • ModelNeo8-PDR
  • Part Number264-713
  • UPC844632053023
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (8 Reviews)
  • Weight1 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Bohlender Graebener Neo8-PDR Planar Transducer
Bohlender Graebener Neo8-PDR Planar Transducer is rated 4.625 out of 5 by 8.
Rated 4 out of 5 by from A different kind of clearI've had a pair of these for a great number of years, and I keep dragging them along and incorporating them into new speakers that I build. They have such a broad sound stage. You have to work with the speaker's attributes though, which means you need them positioned pretty close to your ear level. They have a very wide horizontal dispersion, but not vertically. The clarity is what gets me, and that's the reason I still enjoy listening to them many years later. When I listen to other speakers (bought or built), I still compare the sound to what these can produce...and not much matches them for the price. I've used them in enclosed cabinets and as a dipole setup, and they always sound good to my ear. My only real gripe is mounting them, it's always a process of "get the cutout close, and then fiddle with it for 30 minutes" before they actually fit correctly. So I highly recommend these Neo8's, they were a game changer for me as far clarity, detail and accuracy.
Date published: 2015-02-08
Rated 5 out of 5 by from Upgrade MFB SpeakersI used them to replace tweeter and mids in old Philips 22RH544 MFB speakers. Needed to recap the units, then separate a small volume behind the Neo-8 PDR and to remove the passive xover, all fairly easy work. In this framework the Neo-8 plays from about 650 or 700 Hz up and the sound is great. Now i put the Philips speakers flat on their sides to get the proper directivity of the Neo-8. Soundstage is better than most other speakers i heard before, we like to turn it loud. Most people won't be missing an additional tweeter.Only prob with these Neo-8 is: They don't mount from outside of box, so we need an extra mounting panel (removable) or mount will most likely be "permanent", as in my case.
Date published: 2013-12-07
Rated 5 out of 5 by from POWER AND CLARITYbuilt a MTM with 2 hivi M8N's and these tweeters. Crossover was around 2000 HZ. Good solid pair of cabinets. B&G's are definately worth the money. I always use Tapered pipe technology as I love non-resonant Bass. This combo really performs well. Good SPL, bass response is better than expected with HiVi drivers. Cost is up there a little, but well worth it... Thanks PE
Date published: 2011-11-10
Rated 4 out of 5 by from Phenomenal SoundThis is my second application of these transducers and they continue to blow me away with their sound quality. I'd have to run through all my great sound adjectives except thunderous to describe them. They are reasonably efficient and play very loud but will blow if you get greedy. The solution for that would be to set up multiples or just drop the bucks on the big boys that B & G makes. But I am also talking about pretty absurd volume levels.
Date published: 2009-07-24
Rated 5 out of 5 by from Crisp Clear Sound at an Amazing PriceBeing the philistine I am, I ended up using a pair of these as my center channel and another pair as my surround left and right on a five-channel home theater system. I don't even have them crossed over. I'm using them as dual midrange-tweeters and they provide remarkably clear sound that makes it easier to understand the dialogue and enjoy the audio details while watching a DVD.Because they're dipolar, there's as much sound coming out of the back as there is coming out of the front (good ribbon tweeters are dipolar; lousy ones are not). For that reason, flush-mounting them is like putting the Mona Lisa in a closet. I built simple enclosures from leftover wood, giving them a couple of inches to breathe, then covered my schlocky DIYers with transparent grill cloth and mounted them on either side of my sofa. Doing so has greatly unmuddied the dialogue on my favorite movies and allows me to enjoy a movie while my wife is sleeping (because I've got the Maxwell Smart cone of privacy running).If you go to B&G's website, you'll see B&G's line of finished speakers which, when competitively priced, are not cheap. The Z-7, for example, was named Affordable Loudspeaker of 2004 by The Absolute Sound, but it sells for $800 a pair - and it uses the Neo3 (which is less than half the speaker of the Neo8). To get Neo8s, you have to move up to the really expensive stuff. To think that you could purchase a pair for about $125 - and put them into whatever you want - is awesome. The Neo8 PDR is slightly different from the basic Neo8 in that it controls vertical dispersion, to avoid standing waves from ceilings and floors. That means they should be mounted at hearing level to get the full effect. I did, and I'm very pleased, though I'd also caution that these are not as loud as dome tweeters, which is one reason I've avoided coupling them with domes, which shout them down.
Date published: 2008-07-22
Rated 4 out of 5 by from Good niche productAdvantages: excellent data available from manufacturer's website; resistive load allows simple, predictable crossover design; excellent cumulative spectral delay (waterfall) measurements for upper mid and lower treble (comparable to Morel MDM-55); excellent symmetry front-rear for dipole use; can be used 350-20K with EQ at low volume (computer monitors, for example); better horizontal dispersion characteristics than the non-PDR version; very narrow vertical dispersion eliminates floor and ceiling reflections.Disadvantages: very narrow vertical dispersion requires aiming at specific listening height; sensitivity peak in top octave; odd mounting flange requires special attention to baffle design (Meniscus sells a faceplate to allow flushmounting); lower sensitivity than the non-PDR version; I had to add a dome tweeter to widen horizontal dispersion at high frequencies for a home theater center channel.
Date published: 2008-01-31
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Product Q&A

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Bohlender Graebener Neo8-PDR Planar Transducer

I'm trying to build the perfect speaker. Thinking of running these high passed at 10 Khz in conjunction with a silk dome tweeter high passed at 3,000 khz / low passed at 10 khz, mounted in a circular enclosure angled down from a high position, good idea?

Asked by: Shane U
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-01-20 I asked how I should crossover these tweeters if I were using them with other separate full range speakers and the answer I recieved was 10 - 12 Khz, what about these?

Asked by: Shane U
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-01-20

I want to run these directly from my power amp which is being controlled by an active crossover, can these be run in this manner or do they require some electronics between the amp and planar?

Asked by: Oxbox
These are no different than any other speaker in that regard. It is always good practice to have some sort of passive high pass filter in place in case the electronic crossover fails.
Answered by: MattP
Date published: 2014-04-08

Automotive Use for A-Pillar location

I am thinking of putting these in the A-Pillar along with a neo-3pdrI notice most responses saying that these need to be run open backed or in at least 100cu inches. Would mounting them in a custom a-pillar stuffed with fiber be enough to eliminate the issue with the back wave or would this kill the performance of the driver? There is obviously not room in this location for air space but if I can effectively absorb the back wave would that be sufficient to allow me to cross over around 500-800 hz?
Asked by: Musgofasa
Hello - The neo3pdr has a back cup and is easily placed in an automotive environment. If you want to use the neo8's, you must have the enclosure space. Otherwise you won't get any real response below 1500 - 2000 hz. Hence, all you would need is the neo3. Creating audiophile sound in a car is much different than just "loud". Woofers are easy due to their non-directional difficulties. Replacing the high end with planars gets trickier due to phase and size... the neo3 is really the best single planar for your application. You would be best to mate that to a very fast mid-bass driver and add a subwoofer... Building the 8's into an auto is doable - but the amount of work to get it right may not justify the result.
Answered by: MarkAJH
Date published: 2012-06-08

I am trying to find the neo8pdr back cup

Asked by: joeq
Unfortunately, we do not carry the cup as a separate item.
Answered by: RussR
Date published: 2011-06-27

what's the difference between this and the neo 8

Asked by: jalng63
In the Neo transducers from B&G, the PDR version is an updated version of the original model. The PDR versions have a better off-axis response, lower sensitivity, and slightly higher resonant frequency. The original versions have a tighter dispersion pattern (at the cost of off-axis accuracy), slightly higher sensitivity, and not quite as low a resonant frequency. In this case, the original Neo8 will handle slightly more power as well, however barely enough to mention.
Answered by: RussR
Date published: 2012-10-27
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