DRIVE UNITS BY MANUFACTURER:
RBT-35SR
Categories: Monacor Tweeters Ribbon Tweeters
The RBT-35SR is a high output horn loaded true ribbon tweeter featuring an 9 x 60mm diaphragm, a high power neodymium magnet and an aluminium alloy front horn. The ribbon material is an ultra light (10mg) aluminium film with a cross section of 0.015mm (approx 0.6 thou). Sensitivity is high at 96 dB and the transient response / spectral decay characteristic is superb.
We recommend a minimum crossover frequency of 3kHz / 12db octave.
Priced as matched pairs.
Frequency range | 1.2-40kHz | Nominal impedance (Zn) | 7Ω |
Ribbon dimensions | 60x9mm |
DC resistance (Ribbon) | 0.02 Ω |
Effective area (squared) | 540mm |
RMS power handling | 12 W |
Crossover frequency |
3kHz / 12db |
Peak power | 25W |
Sensitivity (2.83V/1m) | 96dB | Faceplate | 110x98mm |
Friendly technical support
40+ years in the trade
UK family run business
Excellent customer service
Quick dispatch
Been looking for a supplier of replacement drivers for some years.
Willy's HiFi had just the parts at a good price and they arrived in a couple of days.
Excellent service. Even a personal thank you hand written on the invoice.
A quick delivery and the tweeters are perfect on my mission 753 freedom speakers. Easy to fit . Highly recommend.
I’m no expert when it comes to speakers, but after some research (and a strong recommendation from ChatGPT), I went with the SB Acoustics SB65WBAC25-4 as a reference full-range speaker in this size range.
Having now tested them, I can confidently say they’re probably the best speakers I’ve ever owned. The clarity is outstanding—every detail comes through with incredible precision. The bass is surprisingly full and punchy for a speaker this size, and they handle power impressively well. For anyone looking for a high-performance compact full-range driver, these are hard to beat.
Item as described and arrived quickly - and did the job. However, I suggested that anyone replacing speaker foam makes sure they have a very large pair of sharp dressmaking scissors as it was not easy cutting to size without producing a ragged edge (which I managed to hide short of a close inspection)!