NMF SERIES

Near and Mid Field applications tailored High End Transducers by BEYMA.

The tweeters have been developed to fulfill the needs of the professional industry. Challenging design goals were originally established to align expectations with our most demanding customers.

High Consistency

High Consistency

The knowledge that Beyma has been gathering over the last decades of manufacturing compression drivers has been used in these tweeters: tight tolerances, close control of the parts, meticulous manufacturing processes, precise assembly etc. The result is not only a couple of excellent performing tweeters but also highly consistent.

Solid

The revolutionary design means the tweeter can be mechanically coupled to the cabinet. Stiff aluminium die cast back chamber is directly braced to the cast aluminium front plate, holding together the entire assembly firmly as a whole.

Solid
Low Distortion Low Distortion

Low Distortion

The magnet system has been optimized with the latest FEA software to squeeze the ceramic magnet to the limit. T-shaped pole piece covered with a copper cap gives extremely symmetric force factor figures. The copper reduces harmonic distortion figures to the minimum and keeps the inductance down. Vented pole piece, flared on the top helps to get the steel saturated, while avoiding resonances together with damping material. Back radiation gets absorbed with three different carefully-selected damping materials behind the dome.

Controlled directivity

Optimized waveguide for premium off-axis response giving supreme figures helping the system designer to achieve a good spinorama chart.

Controlled directivity

Two different approaches are available:
reinforced metal dome and silk dome.

Accuracy:

The T25M is a carefully designed aluminum-magnesium alloy reinforced dome for enhancing linearity in frequency response. The membrane moves as a piston much above the audible range pushing the break-up close to 38kHz, reducing listening fatigue and ensuring crystal clear sound and brilliant performance in the traditional working range.

Accuracy

Overengineered surround:

Its wide surround allows larger excursion and it is made out of a specific formulation polymer film. The shape has been optimized with finite element analysis software to ensure compliance symmetry exceeding the regular working range of a regular tweeter while giving outstanding on and off-axis figures.

Overengineered surround

Lightweight

The T25S is a lightweight pre-coated silk membrane resulting in a high sensitivity tweeter with excellent linearity in frequency response. Together with the copper-clad aluminium wire voice coil ends up being quite lightweight moving mass design reaching close to 92dB along the working frequency range.

Lightweight
T25M

T25M

Voice coil diameter25.4mm (1″) CCAW

Black Anodized Aluminum dome

Power handling20 W AES

Copper shorting cap

Die cast aluminum rear cover & different damping materials rear chamber

Low resonance frequency

Wide surround and flexible lead wires for large excursions

Die cast aluminum front plate with wide dispersion pattern

Tech sheet

T25S

T25S

Voice coil diameter25.4mm (1″) CCAW

Coated fabric dome

Power handling15 W AES

Copper shorting cap

Die cast aluminum rear cover & different damping materials rear chamber

Low resonance frequency

Wide surround and flexible lead wires for large excursions

Die cast aluminum front plate with wide dispersion pattern

Tech sheet