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Green cylindrical in-ground speaker with slotted top grille, 22.59L x 20.39W x 18.79H inches, 23.54 pounds

Harman

Harman JBL Professional CONTROL 88M Outdoor In-ground Speaker

SKU CH-62FX-GFKTJ

A 2-way in-ground outdoor speaker with an 8-inch woofer and 1-inch tweeter handles 120W pink noise and includes a 60W 70V/100V transformer

  • Designed for outdoor use with a tough polyethylene weather-resistant enclosure
  • 8 Ohm impedance extracts maximum power for higher output from the speaker
  • 120 W pink noise power handling and 240 W program capacity for strong performance
  • Built-in 60 W multi-tap transformer supports 70 V and 100 V distributed audio systems
  • Two-way design with 8-inch polypropylene woofer and 1-inch soft-dome tweeter for full-range sound

Outdoor in-ground speaker

The Harman JBL Professional CONTROL 88M is a two-way outdoor speaker designed for permanent in-ground installation. Its green polyethylene enclosure resists weather exposure while housing an 8-inch polypropylene woofer and a 1-inch soft-dome tweeter. This unit suits landscape audio systems requiring discreet, durable sound coverage across gardens, patios or commercial grounds.

Impedance and transformer options

The speaker presents an 8-ohm nominal impedance for direct connection to compatible amplifiers. A built-in multi-tap transformer provides 60-watt taps at 70V and 100V for distributed-line installations, allowing flexible wiring across larger zones. This dual-mode design lets installers choose low-impedance or constant-voltage topology without extra hardware.

Power handling under load

The driver assembly handles 120 watts of pink noise continuously and 240 watts on program material in direct 8-ohm mode. The transformer taps are rated for 60 watts on 70V or 100V lines. These ratings reflect sustained thermal limits rather than momentary peaks, so the speaker maintains output during extended playback sessions in outdoor conditions.

How it compares

Measured against everything we stock in Home Speakers & Subwoofers, at today’s prices. Recalculated every night.

Price $446.99
Pricier than about 85% of the 1,147 comparable items (median $133.99).

Specifications

No published specifications for this item yet.

Questions about this item

How much continuous pink-noise power can the CONTROL 88M handle before thermal compression becomes the limiting factor?

The speaker is rated for 120 W pink noise power handling in direct 8 Ω mode, which represents the sustained thermal limit under continuous programme material.

What is the long-term heat dissipation like when the speaker runs at high output all day?

The 120 W pink-noise rating defines the steady-state thermal capacity; the sealed polyethylene enclosure relies on passive conduction to the surrounding soil for heat rejection.

What amplifier impedance and voltage tap must the installer match for the built-in transformer to work correctly?

The integrated multi-tap transformer provides 60 W at 70 V or 100 V lines, while the low-impedance input presents an 8 Ω load for direct-drive amplifiers.

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