GRS PRT-8 Replacement Phenolic Ring Tweeter 8 ohm

At last, a faithful reproduction of the classic "phenolic ring" tweeter developed by CTS and used by Marantz, Altec, Martin, Acoustic Research and many others!

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Product highlights:

• Modern reproduction of the famous CTS design used by Marantz, Altec, and many others
• High efficiency and smooth response
• Restore your classic speaker system from the Seventies!

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Product details

GRS PRT-8 Phenolic Ring Tweeter Replacement for AR-4X CTS Marantz and More 8 Ohm

At last, a faithful reproduction of the classic "phenolic ring" tweeter developed by CTS and used by Marantz, Altec, and many others! High efficiency and smooth, extended response. Extremely versatile; great for repairing older systems or for new custom projects. Low-mass paper cone and dust cap, 3/4" voice coil, and stamped steel faceplate. 8 ohm nominal impedance. This is a drop in replacement for the Marantz Imperial Series cabinet speakers models Marantz Imperial 4, 5, 6, 6G, 7, 8, and 9 with common part numbers 137-7348N, 137-7350, 137-7816, and 841-1022 and HLM312A. Also used in Radio Shack Nova series cabinets Nova 7b as well as the Altec Lansing Santana 891 speakers, RSL Rogersound Labs, Acoustic Research AR 4x, Martin Speakers, and Rectilinear XI Cabinets from the 70's.

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Technical Specifications:

• Article number PRT-8 T
• weeter Type Paper Cone
• Cone / Dome Diameter 51 mm | 2
• Power Handling (RMS) 30 Watts
• Impedance (Z) 8 Ω
• Sensitivity (SPL at 1m / 2.83V) 90.3 dB
• Frequency Response 2,000-15,000 Hz
• Resonant Frequency (Fs) 1084 Hz
• DC Resistance (Re) 6.90 ohms
• Overall Outside Diameter 4.25"
• Cutout Diameter 3.19"
• Depth 1.25"