The IPL Acoustics S2tlK CD3 Ribbon is a compact transmission line with a large scale sound. This speaker uses  the superb   IPL/6/K  bass unit with its ultra light but stiff  kevlar cone (a composite of paper and carbon fibre). The bass unit has a smooth response, sturdy cast chassis, and large shielded magnet assembly. The  Ribbon tweeter, Fountek Neo CD3.0 ribbon which is a very high quality unit with high strength  NEODYMIUM magnets, ensuring a  fast and transparent sound and used in Monitor Audio flagship speaker PL300 £6500. The unit has a very low resonant frequency of 400 Hz allowing a low crossover point of around 3khz.. The advantage of the ribbon is a 10 x better mass to magnetic flux ratio over most dome tweeters. This tweeter is used in the very best of commercial speakers costing up to £8500!   All drivers are matched for response and sensitivity.  The S2tlK Ribbon is a remarkable  speaker with a large bandwidth, giving a natural open sound quality A natural light and detailed midrange and a very extended but controlled bass. This  speaker should be placed at least 12" from the rear wall and 16" from side wall, and used in medium to large rooms. (at least 14ft by 12ft - better firing the length of the room).  For smaller rooms or more awkward positioning, it is better to use the S2TLP Ribbon or the S2TLM Ribbon.  The treble has an ambience and sense of realism which is seldom heard with conventional tweeters.  All this is obtained without harshness ensuring that this is a speaker you can listen to all day without fatigue. The frequency response is extremely smooth and extended giving a well balanced and natural sound .

The bi-wired crossover is 2nd order at 3.2 kHz, and incorporates high quality IPL and MKP Polypropylene capacitors in both the bass and treble leg, Top quality  Super Power IPL Steel Laminate bass inductors, and air cored treble inductors, and high power resistors. Line damping is with IPL"s profiled acoustic foam, and  Long Haired wool. for fine tuning. Now with magnetic grill covers for a cleaner look.