These sit in different size classes, so this is not a straight ranking comparison. The Atlantic Technology 8600eC ranks #106 of 131 center channel speakers by sound quality at $1,400; the Atlantic Technology 8600eLR ranks #203 of 226 floorstanding speakers by sound quality at $5,700.
The Atlantic Technology 8600eC is the more accurate, deeper-bass option. A large sealed three-way center with four 6.5” woofers and two 5.25” midranges around a 1” silk dome tweeter, on a tilting base to aim it at the seats. Its measured preference score, a predictor of how neutral it sounds, is 3.46 against 2.65 for the Atlantic Technology 8600eLR. Its bass reaches about 60.1Hz before falling 3dB, against 68.8Hz for the Atlantic Technology 8600eLR. The tradeoff: On-axis deviation (0.66) and a 3.2dB listening window spread from 300Hz to 5kHz keep its preference score at 3.46 without a subwoofer.
The case for the Atlantic Technology 8600eLR: A sealed high-output flagship tower with four 8-inch woofers, dual 5.25-inch midranges, 91dB sensitivity and boundary/HF adjustment controls. Watch for: The raw preference score is only 2.65, making a subwoofer and correction essential despite the massive cabinet.
One note: the Atlantic Technology 8600eC is no longer in production and isn’t widely stocked new anymore. The Atlantic Technology 8600eC’s replacement, the Atlantic Technology 8600iC, is rated 3.4/5 at $2,000.
Buy the Atlantic Technology 8600eC ($1,400) for a center channel speaker; the Atlantic Technology 8600eLR ($5,700) suits a floorstanding speaker instead.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Atlantic Technology 8600eC | Atlantic Technology 8600eLR | |
|---|---|---|
| Price | $1,400 each Discontinued | $5,700 per pair Discontinued |
| Ranked | #106 of 131 in Center Channel Speakers | #203 of 226 in Large Size Floorstanding Speakers |
| Drivers | 1” silk dome tweeter, 2x 5.25” glass fiber midranges, 4x 6.5” glass fiber woofers | 1-inch aluminum-magnesium tweeter, dual 5.25-inch midranges, four 8-inch woofers |
| Frequency Response | 45Hz-25kHz ±3dB (manufacturer specified) | 50Hz-25kHz +/-2dB |
| Sensitivity | 93dB (manufacturer specified) | 91dB |
| Impedance | 6 ohms nominal (manufacturer specified) | 6 ohms |
| Woofer Cabinet | sealed | - |
| Dimensions | 13.7”H x 37.6”W x 14.5”D (347 x 955 x 369 mm) | 51.7H x 10.9W x 11.4D in |
| Weight | 91.5 lbs (41.5 kg) | 93.3 lbs (42.3 kg) each |
| Bass Extension (-3dB) | 60.1Hz (measured, Erin’s Audio Corner) | 68.8Hz (measured, Erin’s Audio Corner via spinorama.org) |
| Bass Extension (-10dB) | about 43.4Hz (measured, Erin’s Audio Corner) | about 47.6Hz (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 3.46 | 2.65 |
| Spinorama Preference Score with Perfect Sub | 5.88 | 5.26 |
| DIY Kit | No | No |
| Enclosure | - | Sealed 3-way floorstander |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared.
Measurement data: Atlantic Technology 8600eC (measured by Erin’s Audio Corner) and Atlantic Technology 8600eLR (measured by Erin’s Audio Corner), via spinorama.org.
Watch Them Compared
Videos and reviews that test both speakers side by side.
Related Speaker Comparisons
How Atlantic Technology 8600eC compares with other leading options:
- KEF R2 Meta vs Atlantic Technology 8600eC
- Atlantic Technology 8600eLR vs Klipsch Heresy IV
- Focal Aria Evo X N°2 vs Atlantic Technology 8600eLR
- Klipsch Forte IV vs Atlantic Technology 8600eLR
- Atlantic Technology 8600eLR vs DALI Rubikore 6
Prices on this page were last checked October 10, 2026 at 5:37 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Atlantic Technology 8600eC: $1,400 each Discontinued Atlantic Technology eBay
Newer model: the Atlantic Technology 8600iC, ranked higher, estimated 3.4/5, released Mar 2024. See every Atlantic Technology 8600 generation.
Same family: the Atlantic Technology 8600eLR (floorstanding, rated 3.1/5).
Pros: A large sealed three-way center with four 6.5” woofers and two 5.25” midranges around a 1” silk dome tweeter, on a tilting base to aim it at the seats. Erin’s Audio Corner measured bass to 60.1Hz (-3dB) and about 43Hz (-10dB) and wide horizontal coverage (about ±60 degrees), and the 93dB sensitivity means it plays loud on modest power. Measured bass extension of 60.1Hz (-3dB).
Cons: On-axis deviation (0.66) and a 3.2dB listening window spread from 300Hz to 5kHz keep its preference score at 3.46 without a subwoofer. It is 955mm wide and weighs 41.5kg. Discontinued.
Full Atlantic Technology 8600eC review and specifications →
| Released | 2020 (6 years ago) |
|---|---|
| Bass Extension (-10dB) | about 43.4Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 60.1Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 13.7”H x 37.6”W x 14.5”D (347 x 955 x 369 mm) |
| Drivers | 1” silk dome tweeter, 2x 5.25” glass fiber midranges, 4x 6.5” glass fiber woofers |
| Frequency Response | 45Hz-25kHz ±3dB (manufacturer specified) |
| Impedance | 6 ohms nominal (manufacturer specified) |
| Sensitivity | 93dB (manufacturer specified) |
| Spinorama Preference Score | 3.46 |
| Spinorama Preference Score with Perfect Sub | 5.88 |
| Weight | 91.5 lbs (41.5 kg) |
| Woofer Cabinet | sealed |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Atlantic Technology 8600eLR: $5,700 per pair Discontinued Atlantic Technology eBay
Newer model: the Atlantic Technology 8600iLR, ranked higher, estimated 3.2/5, released Mar 2024. See every Atlantic Technology 8600 generation.
Same family: the Atlantic Technology 8600eC (center, rated 3.3/5).
Pros: A sealed high-output flagship tower with four 8-inch woofers, dual 5.25-inch midranges, 91dB sensitivity and boundary/HF adjustment controls. The local snapshot measures 58Hz extension and scores 5.26 with a subwoofer. Measured bass extension of 68.8Hz (-3dB).
Cons: The raw preference score is only 2.65, making a subwoofer and correction essential despite the massive cabinet. Each tower weighs over 90 pounds, and value is weak if two-channel neutrality is the main goal. Discontinued.
Full Atlantic Technology 8600eLR review and specifications →
| Released | Apr 2021 (5 years ago) |
|---|---|
| Bass Extension (-10dB) | about 47.6Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 68.8Hz (measured, Erin’s Audio Corner via spinorama.org) |
| DIY Kit | No |
| Dimensions | 51.7H x 10.9W x 11.4D in |
| Drivers | 1-inch aluminum-magnesium tweeter, dual 5.25-inch midranges, four 8-inch woofers |
| Enclosure | Sealed 3-way floorstander |
| Frequency Response | 50Hz-25kHz +/-2dB |
| Impedance | 6 ohms |
| Sensitivity | 91dB |
| Spinorama Preference Score | 2.65 |
| Spinorama Preference Score with Perfect Sub | 5.26 |
| Weight | 93.3 lbs (42.3 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons