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Concerto Grosso

Floor-standing speaker, 4-way base reflex configuration with additional passive radiator

Breaking new ground, setting new standards, redefining the boundaries of what is feasible – premium components, huge investment in development and masterly workmanship make the Heco Concerto Grosso truly outstanding among speakers.

Floor-standing speaker, 4-way base reflex configuration with additional passive radiator

The greatest concert master ever – only the best components are good enough for the top-of-the-range model in the Heco speaker portfolio, now available to mark Heco´s anniversary. High-gloss paintwork and an MDG housing with multiple bracing to ensure a highly stable design ensure even the highest demands for sound quality will be satisfied.
This can also be seen in the chassis features of the impressive box over 1.30 meters in size: A 300 mm woofer, installed as side driver, and a 300 mm bass radiator are supplemented by a 200 mm woofer/midrange driver, a 170 mm midrange driver and a 30 mm dome tweeter. With a frequency response beginning at a sensational 16 Hz and only ending at 52 kHz, the Concerto Grosso guarantees perfect reproduction of any signal source – including high-resolution audio files, like those highly sought after by discerning music lovers.

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Technical specifications


Principle
  • 4 way bass reflex
Sensitivity (2.8V/1m)
  • 92 dB
Equipment
  • 170 mm midrange
  • 30 mm tweeter
  • 12“ woofer - sidefire
  • 12" passive radiator - sidefire
  • 8” woofer-midrange
Impedance
  • 4 – 8 Ohms
Crossover frequencies
  • 110 Hz, 580 Hz, 3.100 Hz
Power Handling (RMS/Max)
  • 325 / 550 watts
Frequency response
  • 16 - 52.000 Hz
Recommended Amplifier Output
  • 30 - 550 Watts
Dimensions (WxHxD)
  • 324 x 1352 x 617 mm
Weight
  • 63.1 kg

Highlights


Principle
  • 4 way bass reflex
Features
  • Woofer, woofer-midrange and midrange with solid aluminium
    die-cast basket and Klippel®-linearized magnet system for
    very low distortion
Cabinet
  • Open, compression free midrange chamber with complex,
    aperiodic damping
  • High-end sidefire bass radiator construction for an extended
    bass range totally free of disruptive flow noise
  • Adjustable metal spikes with metal washers or rubber spikes
    for sensitive floors
  • Noble high-gloss lacquering
Equipment
  • 170 mm midrange
  • 30 mm tweeter
  • 12“ woofer - sidefire
  • 12" passive radiator - sidefire
  • 8” woofer-midrange
Dimensions (WxHxD)
  • 324 x 1352 x 617 mm
Woofer-midrange
  • Front woofer-midrange optimized for its reproduction range
    with reinforced kraft paper cone, inverse kraft paper dust cap
    for additional stabilisation, low-loss rubber surround and 32
    mm high-performance voice-coil
Woofer
  • Side-firing long-throw high-power woofer optimized for the
    very low bass with extremely sturdy kraft paper cone, inverse
    kraft paper dust cap for additional stabilisation, long-throw
    rubber surround and 50 mm high-performance voice-coil
Midrange
  • Elaborately designed midrange with AlNiCo magnet system, light paper/wool cone, coated fabric surround with extremely low losses and 25 mm voice coil
Tweeter
  • Selected High Energy Tweeter with 30 mm Polyfiber Compound dome (PFC dome), aluminium front plate with Wave Control Horn and double magnet system
Crossover
  • High-quality all-metal connector terminal with stable,gold-plated high-end screw terminals
  • Tweeter level adjustment ‚linear‘ / ‚2dB‘ and midrangeadjustment ‚2dB‘ / ‚linear‘ for optimum adaptation to individualroom acoustics and as well as to personal taste
Connections
  • High-quality terminal with solid gold-plated screw connectors
    on a solid aluminium plate
  • Several connecting options (bi-wiring / -bi-amping / tri-wiring
    / tri-amping) with the supplied cable bridge
Surface
  • Piano Black