1Pieces （1 speake）Origin Hivi DMA-A DMB-A DMN-A DM-7500 Dome Midrange Impedance 5 Ohm Pmax 150W Metal Speaker

In the professional audio industry, there are different opinions as to which dome or cone speaker unit has a better effect on reproducing midrange. People who like the vertebral midrange unit think that the vertebral midrange unit can choose a lower crossover point, such as 200Hz-250Hz, and the lowest crossover point of the dome-type midrange unit is about 3 4 times. However, when making speaker systems and human frequency devices, various factors must be considered comprehensively and correctly, and a 50mm dome midrange unit will not be used to match a 12-inch woofer. Usually you can use the dome-type midrange unit to achieve a larger radiation space than the general cone-type midrange unit, and get a clearer and transparent sound.

Because we believe in the above-mentioned views on the dome midrange unit and are convinced of its value for Hi-end sound, we will introduce the DMN-A soft dome midrange speaker unit along this line of thought. DMN-A uses an original hand-made German woven dome diaphragm and rotationally symmetrical vibration components, voice coil and high-power 50mm aluminum frame, double-layer rectangular cross-section wire winding, and soft leads are led out symmetrically at 180 degrees. The entire vibrating part is extremely light, stable and durable, even at high power levels. The magnetic circuit of DMN-A also adopts a "motor" structure, and a double neodymium iron boron magnet "sandwich" design, which provides linear driving force and effective heat dissipation for the suspended voice coil. Such a structure can obtain low harmonic distortion and great power tolerance. After the prototype design of DMN-A, the magnetic circuit has openings, which is conducive to the heat dissipation of the "motor" structure. And adopt a streamlined non-resonant shell. The resonant guided phase rear cavity design can reduce the low frequency distortion, and the ultra-small size and weight are convenient to use. The high heat dissipation open frame further strengthens the power capacity of the unit.

DMN-A's frequency response curve is very smooth, from 800-8000Hz unevenness to negative 1.5dB. When it is 30 degrees off the axis, it drops 3dB at 5.5kHz, but the curve is very close to the axial frequency response. The average sound pressure sensitivity of DMN is 91 dB. This unit can provide 108.8 dBSPL pulse sound pressure output. This is more than enough for home environment playback, even in professional control monitoring systems.

Because the frequency response of this unit is unexpectedly smooth, DMN-A is easily matched with almost any unit, such as: Hivi R1 ribbon tweeter, SD1.1 dome tweeter, and its useful working frequency range is 800Hz-8khz. It is worth mentioning that you can use this type of unit without a back shell, but it needs to be installed in a confined space of not less than 1.50L. You can design this as a flat-shaped speaker system for wall installation, which can also emit high Quality sound. This kind of very light and small midrange unit can be placed very close to other complementary speaker units. The design of the named speaker system is more convenient and allows more complex and exquisite design.

DMA-A

DMB-A

DMN-A

Rated impedance: 5Ω

Resonance frequency: 800Hz

Rated power: 60W

Maximum power: 120W

Sensitivity (2.83v/1m): 93dB

Weight: 0.8kg

Voice coil diameter: 50mm

DC resistance: 4.3Ω

Voice coil wire: high temperature resistant copper clad aluminum wire

Voice coil frame: High temperature resistant Aluminum

Magnetic circuit type: external magnetic magnetic circuit

Magnet material: high performance neodymium iron boron

Recommended crossover point: >800Hz, <9000Hz