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Key Specs
Speaker Type: Floorstanding
General
Product Name: Theos 8" Floor Speaker (Each)
Brand: MartinLogan
Model Number: THEGBLD
Audio
Speaker Type: Floorstanding
Peak Power Handling: 400 watts (The maximum amount of power an electronic device, like a speaker, can handle without damage. This refers to short bursts of power, while root mean square (RMS) power handling indicates the amount of continuous power a device can sustain. Higher levels of distortion can also occur at peak power levels when the device is powered beyond its recommended usage.)
Impedance: 4 ohms (Describes the resistance of an electric signal throughout the system. Devices with low impedance require less power to deliver optimal signals but are more at risk for damage from overloading. Higher impedance requires more power but is more protected from overload damage.)
Maximum Frequency Response: 23 kilohertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The maximum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
Sensitivity: 90 decibels
Tweeter Size: 44 inches
Woofer Size: 8 inches
Dimensions
Product Width: 10.7 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
Product Depth: 18.8 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
Product Weight: 43 pounds (The out of box weight of the item.)
This floor speaker features an 8" high-excursion aluminum woofer cone and an ultralow-turbulance down-firing bass port for powerful bass. The 44" Xstat Curvilinear Line Source (CLS) electrostatic transducer delivers brilliant audio.
Handles up to 400W peak power: For robust and controlled audio that is crisp and clear.
8" high-excursion aluminum woofer cone: Features an extended throw driver assembly and an asymmetrical chamber format to deliver amazing lows.
44" Xstat Curvilinear Line Source (CLS) electrostatic transducer: For brilliant audio.
2-way speaker system: Sounds like 1 source rather than several separate sources. Precision-built Vojtko filter provides smooth audio.
Bi-wire 5-way binding posts: For an easy connection.
43Hz - 23kHz frequency response: For faithful sound reproduction.
90dB sensitivity: For powerful sound.
4 ohms impedance: Conducts power through the speakers. Compatible with 4-, 6- and 8-ohm rated amplifiers.
Whats Included
Power cord
ETC spikes, rubber feet
Owner's manual
MartinLogan Theos 8" Floor Speaker (1 speaker)
Customers are saying
Customers are enthusiastic about the Theos 8" Floor Speaker's exceptional sound quality. Many praise its transparency, crispness, and accurate reproduction of sound across the frequency range, particularly highlighting the natural transition between the speaker's components. Reviewers consistently describe the audio as vivid, airy, and articulate. The speakers' impressive low-frequency response is also frequently mentioned.
This summary was generated by AI based on customer reviews.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Rated 5 out of 5 stars
Electrostatic Speakers are amazing!
I can imagine that most people don't even bother to listen to these because they look so different from the average floor standing speaker. But I highly recommend taking a moment to audition a pair. The sound is very transparent. The speakers produce a huge soundstage due to the direct and reflected sound from the electrostatic panels. I have a 5.1 setup with these at the front channels and I couldn't be happier with them.
Posted by SHKnapp
Rated 5 out of 5 stars
Excellent- pure- crisp
You're not buying an expensive set of speakers if you don't have the right equipment. Lower cost or lower powered amplifiers and processors should not apply here. The smaller martin Logans will do OK with a good receiver, but these wont. The point is, this is an articulate, open speaker with very natural sound. They require plenty of power, and rest assured, if you don't, you will hear it.
Within the store, the demo scenario was less than optimal, so know that before you listen. The small square room does not allow the ML's to breath the way they need to. Like a speedboat in a swimming pool. If you have a small room, buy the smaller versions.
I find them to be sublime- I listen to all types of music and I like it loud. They will consume an inordinate amount of power, so please overdo what you think you need. I am running a 400W McIntosh amplifier on them and they take it perfectly. When running solely off my Denon 4310 they sounded thin and crispy, but with real horsepower, they need no sub woofer. The low frequency response is fantastic, even on video. The transition between the panel and the woofer is very natural, and seldom do I notice it.
Given the right installation, I highly recommend them.
Posted by SpaltmanIT
Rated 5 out of 5 stars
Great speakers! Great buying experience
People who consider buying Martin Logan Speakers know what makes them great. Vivid natural airy sound. I had considered buying the ESLs but found a great deal on the floor model Theos. More expensive, but I tend to keep speakers for a long time (last set for 17 years), so I think it was money well spent. The folks at Best Buy/Magnolia were super. Very helpful.