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Your cart is empty.The Dayton Audio ND91-8 3-1/2" Neo-Balanced driver balances low distortion, extended range, and surprising bass impact. Its sophisticated motor design provides the underhung 1" voice coil with extended linear travel within the magnetic field. Highlights * Low distortion, full-range 65 Hz to 17 kHz performance * Rubber-edged black anodized aluminum alloy cone * Large excursion capability?5.1 mm Xmax, 25 mm peak * Self-shielded Neo-Balanced motor structure with copper alloy shorting ring * 1" 4-layer underhung voice coil with polyimide former * 30 watts RMS power handling * Great for line arrays and micro monitors Product details Dayton Audio ND91-8 3-1/2" Aluminum Cone Full-Range Driver 8 Ohm Dayton Audio's ND91 aluminum cone full-range drivers are the latest addition to the acclaimed ND Series high output/low distortion neodymium transducers. By increasing the original ND90's voice coil diameter from 3/4" to 1" and adding a copper alloy shorting ring, the ND91-8 features even lower distortion and delivers better bass impact and dynamic range?with peak Xmax up to 25 mm! This high-BL version further exploits the low distortion characteristics of the Neo-Balanced motor's optimized magnetic field, making the ND91 drivers an excellent choice for full-range point-source speaker enclosures, as well as extremely accurate, high resolution line arrays.
Tomas T
Reviewed in the United Kingdom on July 2, 2022
Very impressive performance for it's size. Does require rather sizeable enclosure or use of pasive radiators which increases cost. Still 5 Stars though
Nicolò Moioli 🥇
Reviewed in Italy on August 25, 2020
📦 COME SI PRESENTARealizzato con cura, dall'aspetto tutt'altro che economico👍🏻 ASPETTI POSITIVI- Piccolo- Buona estensione in basso👎🏻 ASPETTI NEGATIVI- bassa sensibilità- poco raffinato✒️ LA MIA OPINIONE:Ottimo prodotto, all'altezza delle aspettative (avevo già acquistato la versione da 4" che non aveva deluso).Si presenta con una buona realizzazione e buoni materiali. La sospensione è morbida e decisamente grossa, a vantaggio dell'escursione del cono.L'ho comprato per fare degli esperimenti in linea di trasmissione e devo dire che il risultato è sbalorditivo: le prime prove con una TL da 110 cm hanno dato dei risultati sorprendenti! I bassi sono davvero profondi come non ci si aspetterebbe da un altoparlante di queste dimensioni.Certo ha dei punti negativi: la sensibilità obbliga ad alzare il volume introducendo un po' di distorsione. I bassi in TL sono importanti ma, anche qui, poco definiti.Lavorando sulla finitura interna della TL si riescono a domare le tonalità medie e a renderle gradevoli.Gli alti sono un po' impastati: è molto probabile si renda necessario aggiungere un tweeter.In definitiva, per quello che costa, è un ottimo altoparlante. Funziona bene anche da solo in TL senza che si abbiano, però, pretese di Hi-Fi.👇🏻 Spero che la mia recensione ti sia stata UTILE!
Sergiu-Florin Munteanu
Reviewed in the United Kingdom on January 11, 2018
5***** from my brother!!! He was pleased of themFast delivery!! (2 days)
P. R. Carter
Reviewed in the United States on May 30, 2016
Using these in some desktop enclosures (0.57 liter, walnut baffle with plywood box filled with blocks to adjust volume) and a triode 6L6 amplifier. The bass slam is absurd for a small driver, plus they are addictively musical. I've been on a jag building full-range desktop speakers for the past eight months; have tried six different drivers in optimized acoustic suspension boxes - these are special in near-field use, pick of the litter so far.
Beau Scott
Reviewed in the United States on January 13, 2016
I was really hoping for some better low range performance. Don't get me wrong, the speaker is loud and crisp, it's just not great with depth.
Flashjet
Reviewed in the United States on May 9, 2013
For a 3.5 inch full-range driver, this is one of the best. I was testing it as a possible selection for a Line-array project using 25 of these drivers in each main speaker enclosure. Mid-range, Mid-bass, and bass were very well represented. For use in the Line-array though, it lacked high end sparkle. I am afraid that a Line-array with only these drivers would leave me wanting in the higher frequencies. My search will continue. I may need to combine different full-range drivers as I just have not found one that handles the full-range well. This is one of the very few that handles the lower range well. Most do well with the upper range and lack the bass. Maybe a combination of different full-range drivers will be the solution. This way no crossover network is needed.As a single driver in an enclosure, it does very well for voice. Accurate and natural sounding. Falls off on both ends as might be expected for a full-range driver of this size.
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