Concertina styled ribbon tweeter with folded diaphragm in order to radiate even at little movement. Air movement is, therefore, accelerated considerably. As a result the driver shows an excellent pulse response with plenty dynamic reserves. Frequency range is 750 Hz to 32 kHz (-6dB), should, however, be employed only from 1.7 kHz onwards. Efficiency is 98 dB/2.83 V (1m, 4kHz) or 95 dB at 1 Watt. Resonance frequency is at 550 Hz, effective piston radiating area Sd is 42 cm2 and DC resistance is 3.2 Ohm. A paper about this driver can be found in Hobby HiFi 5/2002.

This small AMT by the US manufacturer ESS, shows a remarkable sensitivity of 95 dB in conjunction with wide frequency range from 2.5 kHz to 30 kHz. Resonance frequency is at 1.4 kHz, DC resistance is 4.1 Ohm, effective piston radiating area Sd is 40 cm2. Dimensions: 90 x115 mm, required cut-out: 73 x 86 mm.

Concertina styled ribbon tweeter with folded diaphragm in order to radiate even at little movement. Air movement is, therefore, accelerated considerably. As a result the driver shows an excellent pulse response with plenty dynamic reserves. This driver may be employed from 1.5 kHz, has a resonance frequency of 450 Hz, an impedance of 6 Ohm and 92 dB SPL.

Magnetostat from 1.5 kHz, on principle superior to dome tweeters. SPL is 91 dB, impedance 8 Ohm, resonance frequency -, rated power handling 150 Watt with 12 dB crossover from 3 kHz. The casing is square (111 x 111 mm) with slanted corners requiring a circular cut-out of 94 mm diameter.

Circular ribbon tweeter by Fountek with a frequency range up to 40 kHz. Equipped with strong Neodym magnet; efficiency 95 dB (1W/1m); recommended from 2.5 kHz with 12 dB/octave crossover; dimensions: 110 mm for a circular cut-out of 86 mm; front plate gauge: 4.5 mm.

This ribbon is solidly built. Selected pairs are supplied when 2 unit are ordered. PDF data sheet

Like Fountek Neo JP 3.0, however, with even lighter 0.009 mm thin aluminium ribbon for extremely airy sound. Frequency range up to 40 kHz; efficiency 95 dB (1W/1m); recommended from 2.5 kHz with 18 dB/octave crossover; dimensions: 110 mm for a circular cut-out of 86 mm; front plate gauge: 4.5 mm.

This ribbon is solidly built. Selected pairs are supplied when 2 unit are ordered. PDF data sheet

Rectangular ribbon tweeter by Fountek extremely sturdy ribbon tweeter with remarkable efficiency of 98 dB. Impedance is 6 Ohm, front plate made of 4.5 mm aluminium, almost flat frequency response from 1.7-25 kHz, outer dimensions 185 x 85 mm for a cut-out of 146 x 61 mm, countersunk depth: 4,5 mm.

This ribbon is solidly built. Selected pairs are supplied when 2 unit are ordered. PDF data sheet

Like Fountek Neo JP 2.0, but with a very light 0,009 mm ribbon for a sophisticated sound. frequency response from 1.7 to 40 kHz; with remarkable efficiency of 98 dB (1W/1m); should be employed from 2 kHz onwards with 18 dB crossover. Outside dimensions 185 x 85 mm for a cut-out of 146 x 61 mm. countersunk depth: 4,5 mm.

This ribbon is solidly built. Selected pairs are supplied when 2 unit are ordered. PDF data sheet

Rectangular ribbon tweeter by Fountek extremely sturdy ribbon tweeter with remarkable efficiency of 102 dB. Impedance is 6 Ohm, front plate made of 6.5 mm aluminium, frequency response from 850 Hz-40 kHz, outer dimensions 190 x 115 mm for a cut-out of 166 x 91 mm, countersunk depth: 6.5 mm.

This ribbon is solidly built. Selected pairs are supplied when 2 unit are ordered. PDF data sheet

Circular ribbon tweeter by ATD in Italy, showing an excellent frequency response between 4.5 and 20 kHz. Efficiency is 90 dB, DC resistance 3.9 Ohm and should be employed from 4.8 kHz onwards. Required cut-out: 67 mm diameter.

Ribbon tweeter reviewed by Klang+Ton 8-9/200. Frequency range 3 to 22 kHz, impedance is 6 Ohm, efficiency 91.5 dB (1W/1m); outside diameter 122 mm, required cut-out: 90 x 75 mm (HxW) diameter.

Kapton polyamide film in neodymium / barium magnets. The frequency response in the range from 1.7-21 kHz is perfectly flat. The ribbon shows an ideal excursion. Impedance is 8 Ohm, efficiency 93 dB (1W/1m), outside dimension 179 mm diameter for a cut-out of 158 x 66 mm (HxW).

Ribbon tweeter with linear frequency response in the range from 1.6 kHz to 40 kHz, useable from 1.6 kHz, efficiency 93 dB, DC resistance 6.4 Ohm, outside dimensions (HxW) 105 x 176 mm, required cut-out 66 x 158 mm, countersunk depth: 4 mm

Ribbon tweeter with linear frequency response in the range from 4 kHz to 40 kHz, useable from 4.7 kHz, efficiency 93 dB, DC resistance 6 Ohm, outside dimensions (HxW) 130 x 102 mm, required cut-out 75 x 90 mm, countersunk depth: 3 mm

Ribbon tweeter with linear frequency response in the range from 3 kHz to 40 kHz, useable from 3.8 kHz, efficiency 94 dB, DC resistance 4.7 Ohm, outside dimensions (HxW) 107 x 150 mm, countersunk depth: 3.5 mm

Ribbon tweeter with linear frequency response in the range from 3 kHz to 40 kHz, useable from 3.8 kHz, efficiency 94 dB, DC resistance 5.8 Ohm, outside dimensions (HxW) 100 x 130 mm, required cut-out 74 x 89 mm, countersunk depth: 6 mm

Ribbon tweeter with linear frequency response in the range from 2 kHz to 40 kHz, useable from 1.8 kHz, efficiency 100 dB, DC resistance 6.77 Ohm, outside dimensions (HxW) 167 x 221 mm, required cut-out 175 x 65 mm, countersunk depth: 5 mm

Aluminium ribbon tweeter, revised version of HRA-532, with somewhat higher efficiency, outside dimensions: 118 mm circular, required cut-out: 86 x 96 mm (HxW)

Neodymium ribbon tweeter with efficiency of 90 dB (1W/1m), outside dimensions 118 mm circular, required cut-out: 86 x 96 mm (HxW)

appearance
similar to RT 8P

appearance
similar to RT 8P