RAAL-requisite SR1a Earfield Headphone
RAAL-requisite SR1a Earfield Headphone
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Product Description
New from RAAL-requisite, the SR1a Earfield headphone is the first monitor to employ the company’s trademarked “Earfield” technology. Driving this technology are highly specialized ribbon drivers that reproduce 30Hz to 30kHz bandwidth, eliminating the need for sealed chambered bass and allowing for open air baffles Read More
  • RAAL-requisite 
  • Earfield open baffle design
  • Floating near ear, does not enclose ears
  • Impedance: 0.2 ohms (with cabling and ribbon/amplifier interface)
  • Ribbon/amplifier interface impedance: 6 Ohms 
  • Amplifier power rating: 100W
  • Sensitivity: 91dB/1W
  • Max SPL: 111 dB
  • Frequency range: 33Hz-30kHz
  • Weight: 15 oz (425 g)
  • Ribbon/amp interface and cables
  • 7 ft (2.1 m) headphone Y cable
  • Custom SR1a hard case

All orders will be shipped by Drop.

Estimated ship date is Jan 2, 2020 PT.

After this product run ends, payment will be collected and orders will be submitted to the vendor up front, making all orders final. Check the discussion for updates on your order.

Recent Activity
Thanks for the inquiry. I have had the Jotunheim R for a month now and it is a great combination with the RAAL. Bypassing the interface box and driving the ribbon drivers directly yields increases in detail and dynamic "pop." The tonal balance is also slightly fuller in the bass, so the active step baffle compensation circuit in the Jotunheim R may be yielding slightly different frequency response than the passive inductor/resistor network in the interface box. For those that are worried that the Jotunheim R will have the same colorations as the original Jotunheim, I can assure you that it does not (I own both). The R version does not have the slight dynamic compression, lower treble brightness, and soft upper treble signatures of the original circuit. Instead, you get wide open dynamics (plenty of volume to spare) and treble air and detail for days. The only drawback of the combo is a slight foreshortening of front-to-back depth (soundstage width is still world-class). I think it takes a pricey ($6k plus) power amp driving the interface box to beat the RAAL-Jotunheim R combo (the upcoming Requisite direct drive amp may be the next step up at $3.5k). I should emphasize how much detail this combo can reveal. It is relatively easy to hear differences in DAC filter settings, or comparing 352 kHz/24 bit vs DSD 256 versions of the same recording. Cable difference naysayers may be shocked to compare interconnects with this combo. Combined with the Jotunheim R, I do not hesitate rating the SR1a's five stars.