Bohlender Graebener Neo3-PDRW Planar Tweeter w/Back Cup

Bohlender Graebener Neo3-PDRW Planar Tweeter w/Back Cup

Brand:| Model: Neo3-PDRW
Overview
The Neo3-PDR uses the progressive drive and radiation technology to improve upon the horizontal dispersion of the Neo3. The overall presentation of the Neo3-PDR is extremely clear and refined, and is reminiscent of the sound of electrostatic speakers.
Part # 
264-735
Weight: 0.32 lbs.  
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Product Details

Bohlender Graebener Neo3-PDRW Planar Tweeter w/Back Cup

The Neo3-PDR uses the progressive drive and radiation technology to improve upon the horizontal dispersion of the Neo3. The overall presentation of the Neo3-PDR is extremely clear and refined, and is reminiscent of the sound of electrostatic speakers. With an off-axis response to match most 1" dome tweeters, the Neo3-PDR is a very capable tweeter that will outperform most domes in the <$100 price range. Comes with an attached damped rear chamber, which may be removed for dipole use. Use with either faceplate kit for easy cabinet installation.

The Bohlender Graebener Neo Series of planar transducers feature push-pull neodymium magnets, extremely light Kaladex(R) diaphragms, and an etched planar aluminum conductor. There are no heavy voice coils, glue joints, or surrounds to inhibit the reproduction of the signal, hence there is no cone break-up resonance, phase incoherence, or signal smearing that is common in conventional drivers. The Neo Series drivers deliver clean, airy, transparent sound that is inherently natural and musically pleasing. Plus, the purely resistive impedance of the Neo Series makes an easy load for your power amplifier and greatly facilitates crossover design. Completely shielded for safe implementation in multimedia and A/V systems.

The standard Neo Series drivers use a uniform magnet system and radiate throughout the surface of the driver. The result is a transducer with a higher sensitivity and higher maximum output capabilities. However, since the radiating area is much wider, horizontal off-axis response is not as good as with the PDR version. This produces a very narrow "listening window" that has rapidly decreasing high-frequency output outside of this window. When highest efficiency or tightly controlled directivity are the goals, the standard version is still the unit of choice.



Product Specifications
  • Tweeter TypePlanar
  • Impedance4 ohms
  • Power Handling (RMS)20 Watts
  • Frequency Response2,000 to 28,000 Hz
  • Sensitivity90.5 dB 1W/1m
Mounting Information
  • Overall Outside Diameter3.50"
  • Cutout Diameter2.62"
  • Depth0.50"
Bohlender Graebener Neo3-PDRW Planar Tweeter w/Back Cup
  • BrandBohlender Graebener
  • ModelNeo3-PDRW
  • Part Number264-735
  • UPC844632053054
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (25 Reviews)
  • Weight0.32 lbs.
  • California Prop 65

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

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Reviews

Bohlender Graebener Neo3-PDRW Planar Tweeter w/Back Cup
Bohlender Graebener Neo3-PDRW Planar Tweeter w/Back Cup is rated 4.56 out of 5 by 25.
Rated 4 out of 5 by from small, flat, efficientIn addition to use with a center channel, I also have tried these with Magnaplanar speakers (flat planed, requires significant power) to enhance the high frequencies. The addition brings more clarity and distinction to whatever you are listening to; high frequencies become more apparent and the sound becomes more present. The thinness of the tweeter, less than 3/4 inches to the mounting lip, allows for creative yet functional options for mounting. (Full thickness < 1 inch.) This includes use in custom automotive applications, where speaker depth becomes much more important, since speaker locations are far and few between. Crossover frequency has to be experimented with, depending on the sound you want; these tweeters are efficient.
Date published: 2010-11-15
Rated 5 out of 5 by from The Best Tweeter I have dealt with yetafter trying out a few dayton soft dome tweeters and a couple Vifa tweeters i just wasnt satisfied how my project was turning out... it was missing the "airie" (sp) sound i am use to from my Definitive BP7001's. well after finding this tweeter is was the missing link... it brightened everything up but not at all harsh on the ear. I currently have it xover @ 3K but will be trying out different points. TAKE A CHANCE ON THIS TWEETER... YOU WILL NOT BE DISAPPOINTED
Date published: 2013-01-25
Rated 4 out of 5 by from Not for the faint of heart - but a true champion indeed!I've been building speakers for quite some time now, and the Neo3 PDR is one of my favorite tweeters out there. Its sound quality is something that needs to be listened to to understand. Yet - it requires very careful crossover design. The frequency response rises as frequency goes up, and it's pretty ragged. When this is accounted for in the design, you are rewarded with pure, silky, great highs.
Date published: 2012-04-03
Rated 5 out of 5 by from Excellent TweeterI've been building project speakers for 20 years. The B&G Neo 3, 8 and new 10 are excellent products. I've used ribbon tweeters of much higher price. The nice thing about the neo's is their transformerless design. They are reminiscent of a smooth electrostatic with a bit better dynamic attack. In dipolar with an 8 or 10, you have a seamless transition - especially with a 6db/oct X-0ver. Use with a good woofer like the Morel MW164 and you've got an excellent combo. Are there better tweeters? Yes. Pure ribbons - at a much higher cost, and the RAAL dipolar ribbon - a staggering achievement in design. But the Neo 3 is simply an extraordinary product. Your designs will prove it out.
Date published: 2008-04-19
Rated 5 out of 5 by from A Work of ArtWow, this is like hearing the Mona Lisa. I hooked these up to my computer to test them with my Tang Band W5-704D's and a couple crossovers I found in my closet, and already I can't believe what I'm hearing. These are my first flat tweeters, but I'll be buying more. I've got a 300W amp (more like 40-50W) to power them, and I can't wait to hear them in my Beamer. Any suggestions for which crossover I should use? I've got 2 12" subs tuned to 39 Hz in the trunk with a 1000W amp (yeah right) and 6 Polk silk dome tweeters up front, so I've got a lot of crossover work to do - any suggestions from the experts would be greatly appreciated. THANKS, and thanks also to Parts Express, you're the best!
Date published: 2007-09-03
Rated 5 out of 5 by from Nice highsGreat tweeter, very accurate and fun to listen to. And the best part, they're not harsh. I can listen to my speakers for hours without getting burned out.
Date published: 2007-07-24

Product Q&A

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Bohlender Graebener Neo3-PDRW Planar Tweeter w/Back Cup

Dispersion Follow-up... Retrofit to KEF 104/2

Many thanks for the answers on my dispersion question. I'm considering options to replace my dried ferro-fluid KEF T33 tweeters, hence the space constraint (it's an MTM + woofer arrangement). Ideally, I'd like to not butcher the existing cabinet, as the midrange drivers are permanently mounted to the cabinet assembly. It appears that it will fit (barely) upright between the two 5" midrange drivers. The T33 was a 4 Ohm 92dB unit so I would plan to pad down the Neo3 with a resistor and the 12khz notch filter shown in the BG data.So the question - if the unit is mounted with the back cup flush to the baffle (assuming the connectors are centered and would line up with with the present 1" dome tweeter cutout - any dimensions available for these connections?), could blu-tak or some other putty be used to "stick" the flange of the driver to the existing front baffle? Although it would look kludgy, would this be a reasonable solution sonically (at least until I developed enough confidence to tear into my beloved 104/2s !)There is a Morel MDT29-4 that folks claim is a close replacement, but since the tweeter of these speakers was often cited as it's weakest link, it would be nice to do better!
Asked by: TedL
ted,let me start by saying the 104/2's were an awesome product,the physical proximities of the acoustic centers of the drivers with the associated polar responses were integral to the complex filter network design,because of my respect for KEF's achievment with this speaker i wouldnt make any recommendation without extensive substitution modeling,i wouldnt recommend a planar because of the vastly different radiation characteristics(regardless of the differing electrical charachteristics#.if t33 or equivalent#relatively)isnt available i would recommend first matching the electrical characteristics(to negate filter deviances)and duplicating radiation pattern which should be relatively easy with same diaphragm of same composition.faceplate geometry is probably the widest variable you will encounter because of the ease of injection molding re-tooling.let me do a little research and i will repost.or maybe some other PE customers will weigh in,regardless,ive been collecting data since late 70's,i may have something on t33's.
Answered by: unk1
Date published: 2014-02-11

How different is horizontal from vertical dispersion?

In other words, can I mount the unit in either orientation without compromise?
Asked by: TedL
wider in the horizontal plane as pictured
Answered by: unk1
Date published: 2014-04-22

is the back cup removable?

I'm looking to play around with a set of these in a dipolar configuration. Is the "Back Cup" a part of the assembly that is easily removable or do I need to find a different version of this driver?
Asked by: BackMask
Yes the back cap is removable. You need to pry it off after scoring around the edges. Patience and being careful get the job done.
Answered by: MarkAJH
Date published: 2014-02-11

Minimum crossover freq

I would like to use these in a two-way setup in my car. Can I cross these at 2K? What is the lowest x-over point?
Asked by: eouble
The lower you cross it at the more important you have steeper filter skirts that is, use a 12db/oct or 18db/oct crossover on at least the tweet. Else you're working the driver pretty hard and feeding it stuff that will cause distortion.Active crossover and EQ even better.And with THIS little guy you want it aiming right at the listener, if at all possible.. I would be VERY tempted to CAREFULLY remove the back cup from a Neo3 if mounted somewhat in free air -- the cup would be great for in a speaker ENCLOSURE. Watch out for Side pillar air-bags, don't implant the Neo3 in your head, hah.If you can afford a pair of Neo8 to go with these, I'd low-pass the Neo8 below the 12Khz response-peak and let the Neo3 pick up from there. Maybe 8khz? Up in that range you can use 6db crossover topologies Neo8 to Neo3. I don't know what you listen to but for something like solo vocals, OMG...or violins... you will hear things you never did before.
Answered by: Armadillo
Date published: 2014-04-22

is the the newer (improved) version of the 3w

Asked by: jalng63
In the Neo transducers from B&G, the PDR version is an updated version of the original W models. The PDR versions have a better off-axis response, lower sensitivity, and slightly higher frequency range. The original W versions have a tighter dispersion pattern (at the cost of off-axis accuracy), higher sensitivity, and not quite as high a useable frequency range.
Answered by: RussR
Date published: 2012-11-02

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