Phone: 02-9797-9866 Fax: 02-9716-6015 28 • Vented pole piece for reduced compression Impedance 4Ω (Re 3.1Ω) 8Ω (Re 5.9Ω) Power 50Wrms 50Wrms Sens 895dB 865dB Fs 345Hz 365Hz Qms 358 348 Qes 03 037 Qts 028 034 Vas 205L 20L Code SB15NRX2C30-4 SB15NRX2C30-8 Impedance 8Ω (Re 5.7Ω) Fs 38Hz Sens 88dB Power 50Wrms Qms 48 Qes 035 Qts 033 Vas 207L Materials Uncoated Code SB15NRXC30-8-UC Impedance 8Ω (Re 5.7Ω) Fs 38Hz Sens 88dB Power 50Wrms Qms 48 Qes 035 Qts 033 Vas 207L Materials Coated Code SB15NRXC30-8 Proprietary cone material with natural fibres made in-house with an optional thin polyurethane protection coating. Low damping SBR rubber surround with high exertion and resilience Open structure cast frame for reduced reflections and compression. Aluminium alloy for light weight, non-magnetic and extra rigidity. Shorting Copper cap on pole piece. Non-inductive CCAW fibre glass 30mm coil former. Silver lead wires. Vented pole piece. Ø138.0±0.10 Ø8.5 (x4) Ø4.3 (x4) Ø 123.9 78.9 Ø100.0 6.5 Ø150.0 68.3 (IEC baffle, mic. distance 31.6 cm, SPL shown for 2.83 V / 1 m) Rev.2 (26.02.2019) Response Curve : (Blue) : on axis (Green) : 30° off-axis ( Red ) : 60° off-axis ------ ------ ------ 100 95 90 85 80 75 70 65 60 55 50 45 40 20 50 100 200 500 1k 2k 5k 10k 20kHz 160 147 133 120 107 93 80 67 53 40 27 13 0 Ohm dB SB ACOUSTICS 5" MID-WOOFER - NRX2 • Vented cast aluminium chassis for optimum strength and low compression • Norex® proprietary cone material with natural fibres made in-house • Soft low damping rubber surround for improved transient response • Non-conducting fibre glass voice coil former for minimum damping • Extended copper sleeve on pole piece for low inductance and low distortion • CCAW voice coil for reduced moving mass • Long life silver lead wires Impedance 8Ω (Re 5.7Ω) Fs 39Hz Sens 87dB Power 50Wrms Qms 44 Qes 04 Qts 037 Vas 177L Code SB15MFC30-8 Ø138.0 4-Ø8.50 4-Ø4.30 Ø 150.0±0.4 6.5 Ø 100.0 Ø 123.9 79.0 68.4 (IEC baffle, mic. distance 31.6 cm, SPL shown for 2.83 V / 1 m) Response Curve : (Blue) : on axis (Green) : 30° off-axis ( Red ) : ------ ------ ------ 60° off-axis 100 95 90 85 80 75 70 65 60 55 50 45 40 20 50 100 200 500 1k 2k 5k 10k 20kHz 160 147 133 120 107 93 80 67 53 40 27 13 0 dB Ohm SB ACOUSTICS 5" MID-WOOFER - MFC ALUMINIUM CHASSIS - POLYPROPYLENE CONE Vented cast aluminium chassis for optimum strength and low compression. Unique mineral filled polypropylene cone material, made in-house Soft low damping rubber surround for improved transient response. Non-conducting fibre glass CCAW voice coil former and extended copper sleeve on pole piece for low inductance and low distortion Long life silver lead wires Vented pole piece for reduced compression Impedance 4Ω (Re 3.1Ω) Fs 355Hz Sens 90dB Power 50Wrms Qms 526 Qes 03 Qts 028 Vas 194L Code SB15MFC30-4 NRX2 represents the latest iteration of the NRX Series of speaker drivers The NRX line features proprietary paper cone drivers known as "Norex," developed by SB Acoustics During the evolution of newer generation drivers utilizing various cone materials such as carbon fiber, polypropylene, aluminum, and ceramic, significant enhancements were also made to the suspension system, damping, voice coil, and coil former Each new generation has introduced a range of subtle refinements that have accumulated over the years The NRX2 leverages insights gained from this extensive development, presenting a new yet familiar driver series. It offers improved detail, openness, dynamics, and reduced distortion In most instances, NRX and NRX2 can be interchanged without requiring any modifications to the crossover. 30mm Voice coil, Norex paper cone Low damping SBR rubber surround with high exertion and resilience. Open structure cast frame for reduced reflections and compression. Aluminium alloy for light weight, non-magnetic and extra rigidity Shorting Copper cap on pole piece. Non-inductive CCAW fibre glass 30mm coil former. Silver lead wires. Vented pole piece. Available in 4 or 8Ω version. ALUMINIUM CHASSIS - PAPYRUS CONE COATED SB ACOUSTICS 5" MID-WOOFER - NRXC Ø138.0±0.10 4-Ø8.50 4-Ø4.30 Ø 150.0±0.4 6.5 Ø 100.0 Ø 123.9 78.9 68.3 100 95 90 85 80 75 70 65 60 55 50 45 40 20 30 50 100 200 300 500 1k 2k 3k 5k 10k 20kHz (IEC ba e, mic. distance 31.6cm, SPL shown for 2.83V/1m) dB 80.0 73.3 66.7 60.0 53.3 46.7 40.0 33.3 26.7 20.0 13.3 6.7 40 ohm Response Curve: (Blue) : on axis (Green) : 30° o -axis (Red) : 60° o -axis OR UNCOATED
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