There's definitely not much to say about this tweeter - the fantastic sonic performance thrills both the press and end-users for many years. Despite the decent appearance, this driver is a "giant" with respect to sound quality.  Like its predecessor, it easily outperforms competitor products and defines the standard in its class. Precision, resolution and tonality have a short and simple name - P 1T.

1" / 25 mm tweeter with high efficient neodymium magnet and hand-coated silk dome for balanced, natural sound reproduction and lowest compression effects

Including installation and mounting equipment

Lowest possible production tolerances and solely use of best materials

Power RMS / max. P 100 / 200 Watts

(highpass > 3,000 Hz at 12 dB/Oct.)

Impedance Z 4 Ω

DC resistance Re 3.4 Ω

Frequency response 2,500 Hz - 25,000 Hz

Resonance frequency Fs 1,500 Hz

Efficiency 1 W / 1 m SPL 91 dB

Voice coil diameter ø 25 mm

Cone area Sd 4.9 cm²

Moving mass Mms 0.3 g

Cone material Silk dome

Outer diameter ø 58 mm / 2.28"

Installation diameter ø 49.3 mm / 1.95"

Installation depth 15 mm / 0.60"

   

Recommended crossover frequencies for the highpass  

Slope Minimum crossover frequency

6 dB/Octave 4,000 Hz

12 dB/Octave  > 3,000 Hz

24 dB/Octave > 2,500 Hz

Delivery Contetnts

2 x Tweeter HELIX P 1T incl. flush mount

2 x Surface mount

2 x Fitting spring

1 x Mounting material

We take great care packaging every item to ensure safe shipment to you. Our postage and courier charges not only cover the shipping cost, but also the time to pack your order, plus packaging supplies etc. Please note - some items may incur extra shipping charges that have to be sent by courier and are too large/expensive to be sent by Royal Mail (for example headlamps, head units, speakers, lowering springs etc) to the following postcode areas, Channel Islands, BT, most IV, HS, KA-27-28, Any KW, AB30-56, FK17-99, G83, KW1-14, PA21-40, PH18-26, PH30-41, PH49-50, all ZE, IM, and any other non-mainland postcodes.