MartinLogan - Helos 20- High Performance In-Ceiling Speaker The Helos 20 dual-tweeter in-ceiling speaker delivers legendary MartinLogan quality and performance for home theater or distributed audio. Regular Price: $399.00 Our Price: $199.50 Related Searches: Martin Logan | Helos 20 | Ceiling Speakers MartinLogan - Helos 100-High Performance In-Celiing Speaker The MartinLogan Helos 100 in-ceiling speaker with 8" high-resolution state-of-the-art woofer is ideal for any room requiring ultimate in-ceiling audio performance. Our Price: $499.00 Related Searches: Martin Logan | In Ceiling Speakers | Ceiling Speakers MartinLogan - Helos 10-High Performance In-Ceiling Speaker The Helos 10 delivers legendary MartinLogan quality and performance in a compact, high-resolution in-ceiling loudspeaker. Our Price: $299.00 Related Searches: Martin Logan | Ceiling Speakers | Martin Logan Speakers MartinLogan - Helos Rough-In Brackets These are pre-construction brackets for MartinLogan Helos speakers designed for use in new construction, to be attached to studs before drywall is installed. Our Price: $81.00 Related Searches: Martinlogan Speakers | Martin Logan Helos | Helos 20