SB Acoustics RIMA Kit - Crossover Only - PAIR

SB Acoustics RIMA Kit - Crossover Only - PAIR

Crossovers Only- does not include Speaker Drivers or Cabinets

This is for a pair of RIMA crossovers assembled on circuit boards. The crossover will use CSA capacitors in series with the drivers on the tweeter and midrange.

Rima User Manual

Rima Cabinet Drawing

Here is a link to the RIMA kit on the SB Acoustics site: RIMA KIT

Rima is the more compact sibling to the Gema — a 3‑way loudspeaker that carries the same 1970’s design cues and acoustic philosophy in a smaller, more versatile enclosure. Classic hi‑fi of that era celebrated generous proportions and large bass drivers, and while Rima embraces that heritage, it delivers the same musical charm in a footprint suited to modern living spaces.

Bass duties are handled by the 10 inch SB29NRX75-8, a driver chosen for its excellent linearity, low distortion and ability to produce a surprisingly deep, controlled and tuneful low end, providing the familiar warmth and weight of vintage loudspeakers, just scaled to a more compact form.

The midrange is covered from 500 Hz up to 3 kHz by the 4 inch SB12NRX25-8, a paper‑cone unit known for its smooth response, low moving mass and natural tonal character. This driver brings clarity and openness to vocals and instruments, maintaining the articulate midband performance that defines the family.

To match the midrange’s clean presentation, the top end is handed over to the SB26STAC-C000‑4 soft dome tweeter. With its die‑cast aluminium faceplate, optimised rear chamber and full copper cap, it delivers a refined, extended treble that integrates seamlessly with the midrange for a cohesive, balanced sound.

RIMA Loudspeakers:

1" soft dome tweeter: SB26STAC-C000-4

4" paper cone midrange: SB12NRX25-8

10" paper cone woofer: SB29NRX75-8

We have selected crossover parts that will be a good match to this system.

Tweeter section parts:

25R2.7

CSA-6.8

0.27mH air core

Midrange section parts:

25R2.7

CSA-22

1.5mH air core

XPP-6.8-400V

SL3.3-18AWG

Woofer section parts:

SL4.7-15AWG

15R1

MDL-56

The parts will be assembled on several circuit boards. Internal wiring will need to be soldered to the boards and a hookup sheet will be provided.

This crossover is specifically designed for the speakers in the kit. It is not recommended to use this crossover with any other speakers. This custom made product is not returnable.