JBL Completes Summit Series With Everest And K2 Speakers
All Image Credit: JBL
JBL has announced two new flagship loudspeakers; the Summit Everest and Summit K2. They complete the Summit Series that also includes; the Summit Makalu, Summit Pumori and Summit Ama. Both loudspeakers are available in high-gloss black with platinum accents or Macassar Ebony veneer with gold detailing.
Summit Everest
Weighing in at 523lbs (237.2Kg), this 3.5 way floorstanding Everest is the largest in the range with dimensions of: 56.8″ x 39.1″ x 27.3″. Its high-frequency system combines three D2820 2″ dual-diaphragm, dual-motor compression drivers with a 3-into-1 expansion manifold, feeding a large-format Sonoglass HDI horn.
3 in 1 HF Expansion Manifold
Mid-bass is handled by a pair of 10″ cast-frame Differential Drive drivers with LF reproduction handled by dual 15″ cast-frame Differential Drive drivers that use JBL’s triple-layer Hybrid Carbon Cellulose Composite Cone (HC4).
Bandwidth is specified at 20 Hz to beyond 23 kHz. Sensitivity is rated at 96dB (2.83V/1m). Recommended amplifier power is 25 – 1200W into a nominal 4-ohm load; minimum impedance drops to 2.7 ohms at 86.8Hz, which will have implications for amplifier choices. This is not a small loudspeaker – dimensions (H x W x D) are 56.8″ x 39.1″ x 27.3″, nor is it a light one – weighing in at a whopping 523 lbs (237.2kg) per speaker.
Summit K2
The K2 is a 3-way floorstanding loudspeaker that uses a single 15″ cast-frame Differential Drive woofer and a 10″ cast-frame Differential Drive mid-bass driver, again both using HC4 cones. The high-frequency system uses three D2815 1.5″ dual-diaphragm, dual-motor compression drivers with a 3-into-1 expansion manifold and the same large-format Sonoglass HDI horn format as the Everest.
This slightly smaller cabinet has dimensions (H x W x D) of 50.4″ x 25.0″ x 18.1″, and weighs in at 239 lbs (108.4Kg) per speaker. Bandwidth is quoted to be 25 Hz to 23.5 kHz, sensitivity is rated at 92dB (2.83V/1m) with a nominal 4-ohm load that drops to 3.27 ohms at 86.8Hz.
Both designs use cabinets that are said to be internally offset, multi-braced and damped, with pressed curved walls intended to suppress internal standing waves. IsoAcoustic isolation feet are fitted as standard.
Completing the design of each model their crossovers use an advanced MultiCap network that replaces conventional large capacitors with multiple smaller ones, JBL says that this approach reduces electrostatic resistance and energy loss. Internal wiring is Ohno-Continuous-Cast long-crystal oxygen-free silver-plated copper.
Their rear panels supporting single-wire, bi-amp/bi-wire and tri-amp/tri-wire configurations with binding posts made from a rhodium and silver coated, oxygen-free pure copper core.
Features At A Glance:
- Everest:
- 3x patented D2820 2-inch (50mm) Dual-diaphragm, Dual-motor High-frequency Compression Drivers
- Patent-pending Constant Expansion Rate / Phase Coherent 3-into-1 manifold
- Patented custom High-Definition Imaging (HDI™) Sonoglass High-frequency Horn
- Dual 10-inch (250mm) Cast-frame, Differential Drive, Triple-layer Hybrid Carbon Cellulose Composite Cone (HC4) Mid-basses
- Dual 15-inch (380mm) Cast-frame, Differential Drive, Triple-layer Hybrid Carbon Cellulose Composite Cone (HC4) Woofers
- Advanced MultiCap Crossover Network with Single-wire, Bi-amp/Bi-wire, and Tri-amp/Tri-wire Connectivity
- JBL | IsoAcoustics custom designed isolation feet
- Finely Crafted and Beautifully Detailed Enclosure with Carbon Fiber Baffle Trim
- Soft-curved Pre-stressed Pressed Cabinet Walls with Heavily Braced and Dampened Construction
- JBL | IsoAcoustics Adjustable Acoustic Isolation Feet
- Luxurious High Gloss Finishes with Summit Platinum or Summit Gold detailing
- K2:
- 3x patented D2815 1.5-inch (38mm) Dual-diaphragm, Dual-motor High-frequency Compression Drivers
- Patent-pending Constant Expansion Rate / Phase Coherent 3-into-1 manifold
- Patented custom High-Definition Imaging (HDI™) Sonoglass High-frequency Horn
- 10-inch (250mm) Cast-frame, Differential Drive, Triple-layer Hybrid Carbon Cellulose Composite Cone (HC4) Mid-bass
- 15-inch (380mm) Cast-frame, Differential Drive, Triple-layer Hybrid Carbon Cellulose Composite Cone (HC4) Woofer
- MultiCap Crossover Network with Single-wire, Bi-amp/Bi-wire, and Tri-amp/Tri-wire Connectivity
- Finely Crafted and Beautifully Detailed Enclosure with Carbon Fiber Baffle Trim
- Soft-curved Cabinet Walls with Heavily Braced and Dampened Construction
- JBL | IsoAcoustics Adjustable Acoustic Isolation Feet
- Luxurious High Gloss Finishes with Summit Platinum or Summit Gold detailing
Specifications:
- Everest:
- Description: 3.5-Way, Dual 15-inch (380mm) Floor-standing Reference Loudspeaker
- High Frequency Control: High-definition imaging (HDI™) Sonoglass® acoustic horn
- Mid-Bass Frequency Transducer: Dual JMW250SC 10-inch (250mm), Triple-layer Hybrid Carbon Cellulose Composite Cone (HC4) with dual-inverted spiders, a 3-inch differential drive, dual voice coil motor, cast aluminum frame, and treated-cloth reverse progressive accordion-edge surround
- Low Frequency Transducer: Dual JW380SC 15-inch (380mm), Triple-layer Hybrid Carbon Cellulose Composite Cone (HC4) with dual inverted spiders fore and aft of the motor, a 4-inch differential drive, dual voice coil motor, cast aluminum frame, and half-forward-roll surround
- Recommended Amplifier Power (RMS): 25-1200 Watts RMS
- Frequency Response (-6dB on-axis, anechoic): 20 Hz – 23 kHz
- Frequency Response (-10dB on-axis, anechoic): 18 Hz – 23.25 kHz
- Sensitivity (2.83V@1m): 96 dB
- Maximum SPL: 126 dB (calculated)
- Acoustic Center Height (centered, from floor): 42″ (1067mm)
- Impedance (Nominal / Minimum): 4 Ohms / 2.7 Ohms
- Crossover Frequency(s) / Type / Slope: 270Hz, 550, 850 Hz / Full MultiCap / Acoustically symmetric 3rd and 4th order, 3.5-way crossover
- Internal Wiring: Ohno-Continuous-Cast (OCC) Long-crystal Oxygen-free Silver-plated Copper Wire
- Controls: Tri-amp / Tri-wire capable with 3-pairs of binding posts Left / Right assignment selection
- 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 (3 pairs)
- Enclosure Tuning: Dual rear flared bass ports
- Enclosure Finish Options: Black High Gloss (BG), Macassar Ebony Wood Veneer with High Gloss (EG)
- Net Dimensions with grille (HxWxD): 56.8″ x 39.1″ x 27.3″, (1443.0mm x 992.0mm x 694.5mm)
- Net Weight (Speaker + Grille): 523.0 lbs. (237.2kg)
- K2
- Description: 3-Way, 15-inch (380mm) Floor-standing Reference Loudspeaker
- High Frequency Contro: lHigh-definition imaging (HDI™) Sonoglass® acoustic horn
- High Frequency Transducer: Triple, D2815; Dual 1.5-inch (38mm) annular ring Teonex® diaphragms, Dual-motor D2 compression drivers mounted to a 3-into-1 manifold mated to the High-Definition Imaging (HDI) horn
- Mid-Bass Frequency Transducer: JMW250SC 10-inch (250mm), Triple-layer Hybrid Carbon Cellulose Composite Cone (HC4) with dual-inverted spiders, a 3-inch differential drive, dual voice coil motor, cast aluminum frame, and treated-cloth reverse progressive accordion-edge surround
- Low Frequency Transducer: JW380SC 15-inch (380mm), Triple-layer Hybrid Carbon Cellulose Composite Cone (HC4) with dual inverted spiders fore and aft of the motor, a 4-inch differential drive, dual voice coil motor, cast aluminum frame, and half-forward-roll surround
- Recommended Amplifier Power (RMS): 25-600 Watts RMS
- Frequency Response (-6dB on-axis, anechoic): 24.6 Hz – 23.5 kHz
- Frequency Response (-10dB on-axis, anechoic): 18.2 Hz – 26.5 kHz
- Sensitivity (2.83V@1m): 92 dB
- Maximum SPL: 118.8 dB (calculated)
- Acoustic Center Height (centered, from floor): 39.56″ (1005mm)
- Impedance (Nominal / Minimum): 4 Ohms / 3.27 Ohms (@86.8 Hz)
- Crossover Frequency(s) / Type / Slope: 270Hz, 1080 Hz/Full MultiCap/Acoustically symmetric 3rd and 4th order, 3-way crossover
- Internal Wiring: Ohno-Continuous-Cast (OCC) Long-crystal Oxygen-free Silver-plated Copper Wire
- Controls: Tri-amp / Tri-wire capable with 3-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 (3 pairs)
- Enclosure Type: Internally offset multi-braced & damped pre-stressed pressed curved-walls made from sustainably-sourced engineered wood with multi-component lining
- Enclosure Tuning: Dual rear flared bass ports
- Enclosure Finish Options: Black High Gloss (BG), Macassar Ebony Wood Veneer with High Gloss (EG)
- Net Dimensions with grille (HxWxD): 50.4″ x 25.0″ x 18.1″, (1280.2mm x 635.3mm x 458.7mm)
- Net Weight (Speaker + Grille): 239.0 lbs. (108.4kg)
Pricing (Everest/K2 – pair):
- UK: £139,998/£71,998
- US: $159,900/$99,990
- EU: €159,998/€84,998
For more information visit the JBL web site.
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- For more JBL product posts click here.
