Quad ESL 63
The Quad ESL-63 is a full-range electrostatic loudspeaker introduced in 1981 as the successor to the earlier ESL-57. What makes it unique is its “concentric ring” stator architecture: the stator is split into eight rings, each fed with slight time delays so the panel behaves more like a point source, reducing the extreme directionality typical of electrostatic panels.
Designed for clarity, transparency, and tonal neutrality, the ESL-63 has no conventional woofers or crossover networks. Because it is a pure electrostatic design, bass extension is modest—but the tradeoff is extremely low distortion, instantaneous transient response, and a sense of open, airy musicality. It was often praised by listeners who valued articulation, spatial realism, and articulate midrange more than sheer output or heavy bass.
Review
Note: Local Pickup in Portland Only
Return Policy
Return Policy
We offer a 3-day return window on all purchases. Returns made to a credit or debit card will incur a 5 percent processing fee. Shipping costs, both to and from, are the responsibility of the customer if applicable.
After the 3-day window and up to 3 weeks from the date of purchase, items may still be returned, subject to a 20 percent restocking fee.
For shipped orders, customers must notify us within 3 days of receiving the item to initiate a return. Once the item is received back in the same condition it was sent, we will issue a refund minus all shipping charges and a 5 percent credit card processing fee.
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The Quad ESL-63 is a full-range electrostatic loudspeaker introduced in 1981 as the successor to the earlier ESL-57. What makes it unique is its “concentric ring” stator architecture: the stator is split into eight rings, each fed with slight time delays so the panel behaves more like a point source, reducing the extreme directionality typical of electrostatic panels.
Designed for clarity, transparency, and tonal neutrality, the ESL-63 has no conventional woofers or crossover networks. Because it is a pure electrostatic design, bass extension is modest—but the tradeoff is extremely low distortion, instantaneous transient response, and a sense of open, airy musicality. It was often praised by listeners who valued articulation, spatial realism, and articulate midrange more than sheer output or heavy bass.
Review
Note: Local Pickup in Portland Only