Tel: 02 9427 6755

Sunfire - SFHRS12B


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The guiding principles behind Sunfire subwoofers are (i) compactness, (ii) to go as low as possible, and (iii) play loud! To achieve these goals in the HRS range, they have utilised every angle available, starting with heavy 20mm MDF enclosures, which are sealed and not ported, to get tighter bass, without the 'boom'. The drivers have to be light but rigid in cone structure and heavy in the magnet, with very long travel. To exert the force and subtle control over the cone's excursions, there must be high power, but this must be guided by smart technologies which maintain clean performance even when the system is working hard.

The largest of the HRS series is the HRS12, but still at a relatively compact size of around 343mm cubed. You ccould say that this is where the high performance subs really start, as a lower limit of 18Hz is not usually truly achieved in a subwoofer at this price. You get a powerhouse rated at 1000w from a cool-running Class D amplifier module. Cool running, because class D gives off very little waste energy in the form of heat - they are very efficient. That's important when you put a powerful amplifier into a box, as breakdowns happen more often when heat is allowed to build up in an amp module. And why waste energy anyway? It's needed to deliver the maximum punch possible from the woofer.  The HRS12 frequency response of 18Hz - 100Hz with sound pressure levels up to 108dB makes this one a heavy hitter in rooms up to 120 square metres.

As you'd expect, there are adjustments for volume, crossover frequency and Phase (0-180 Degrees). Power can be On, Off or or Auto On/Off (signal sensing). There are inputs of both line level (gold plated RCA) and speaker level to use as required. There are also two other models in this series, the HRS10 and the HRS8 - see separate pages for those ones in this section of the website.

The Sunfire HRS series deliver a level of performance, construction and technology beyond anything else at this price level or even substantially higher, and are highly recommended.  


Contact Len Wallis Audio

Address: 64 Burns Bay Road,
Lane Cove NSW 2066,
Telephone: (02) 9427 6755