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The Summit Makalu, a floorstanding loudspeaker built for the discerning music enthusiast. It features a newly designed complement of drivers starting with JBL’s D2830K 3-inch (75mm) dual-diaphragm, dual-motor compression driver mated to a large format Sonoglass High-Definition Imaging (HDI) horn. Anchoring the sound foundation of Summit Makalu are an 8-inch (200mm) cast-frame mid-bass driver and a 12-inch (300mm) cast-frame woofer. Both drivers utilize a triple-layer Hybrid Carbon Cellulose Composite Cone (HC4), a design made from a proprietary formula of carbon-fiber and pure-pulp front and rear surfaces, sandwiched with an internal core of closed-cell foam. This hybrid cone design provides the proper stiffness, overall mass, and structure to deliver high-output, low distortion, and high-power handling.
Controlling how the signal is distributed to each of the drivers in Summit Makalu is a MultiCap crossover network with single-wire and bi-amp/bi-wire connectivity. By replacing traditional large capacitors with an increased number of smaller capacitors, this design results in lower ESR (Electro-Static Resistance) and less energy lost in mechanical movement. All of which results in greater signal throughput to the drivers, increased power handling, enhanced dynamics, ultra-low distortion, and exceptional clarity. All drivers and crossover components are housed in a beautifully engineered cabinet featuring internally offset multi-braced and damped curved-wall construction to minimize internal cabinet standing waves. Enclosures are offered in a choice of a high-gloss painted black finish with Summit platinum accents or high-gloss ebony wood veneer finish with Summit gold accents.
| Model | JBL Summit Makalu |
|---|---|
| Description | 3-Way, 12-inch (300mm) Floorstanding Reference Loudspeaker |
| High Frequency Control | High-Definition Imaging (HDI) Sonoglass Acoustic Horn |
| High Frequency Transducer | D2830K; Dual 3-inch (75mm) Annular Ring Teonex Diaphragms, Dual-motor D2 Compression Driver Mated to the Summit Makalu High-Definition Imaging (HDI) Horn |
| Mid-Bass Transducer | JMW200SG; 8-inch (200mm), Triple-layer Hybrid Carbon Cellulose Composite Cone (HC4) with Dual-Inverted Spiders, a 2.5-inch Voice Coil, Underhung Neodymium Motor, Cast Aluminum Frame, and Treated-Cloth Accordion-Edge Surround |
| Low Frequency Transducer | JW300SC; 12-inch (300mm), Triple-layer Hybrid Carbon Cellulose Composite Cone (HC4) with Dual Inverted Spiders, 3-inch Voice Coil, Ferrite Motor, Cast Aluminum Frame, Half-Forward-Roll Surround |
| Sensitivity (2.83V @ 1m) | 88 dB |
| Recommended Power | 25 – 300 Watts RMS |
| Maximum SPL | 113 dB |
| Frequency Response | 20Hz – 34kHz (-10dB on-axis) 23Hz – 33kHz (-6dB on-axis) |
| Impedance | 4 Ohms (Nominal) 3.5 Ohms (Minimum @ 79Hz) |
| Crossover | 285Hz / 1100Hz / Series MultiCap / Acoustically Symmetric 3rd and 4th Order 3-way |
| Internal Wiring | Ohno-Continuous-Cast (OCC) Long-Crystal Oxygen-Free Silver-Plated Copper Wire |
| Controls | Bi-amp / Bi-wire Capable with 2-Pairs of Binding Posts |
| Input Type | Rhodium-Plated, Silver-Coated, Oxygen-Free, Pure Copper Core Binding Posts with a Chrome-Plated Brass Carbon-Fiber Wrapped Shell and Nylon / Glass-fiber Insulators (2 pairs) |
| Enclosure Type | Internally Offset Multi-Braced & Dampened Curved-Wall Made from Sustainably-Sourced Engineered Wood with Multi-Component Lining |
| Enclosure Tuning | Dual Rear-Flared Bass Ports |
| Enclosure Finish Options | Black High Gloss (BG) Ebony Veneer with High Gloss (EG) |
| Net Dimensions with grille (H x W x D) | 43.4" x 18.3" x 15.5" (1102.3mm x 464.3mm x 393.0mm) |
| Weight | 152.6 lbs (69.2kg) |
| Shipping Dimensions | 51.1" x 27.4" x 25.0" (1298.0mm x 695.0mm x 636.0mm) |
| Shipping Weight | 177.3 lbs (80.4kg) |
