EAR Yoshino 509 Monoblock Pair
SKU: 31342317298

EAR Yoshino 509 Monoblock Pair

Sale price$10124.55 Regular price$11249.50
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

EAR Yoshino 509 Monoblock PairClassic Beauty The EAR 509 mono amplifier, designed by the acclaimed Tim de Paravicini, has been a staple in professional studios and homes alike for over 30 years. Known for its high fidelity and robust 100 watt output, this timeless piece is meticulously crafted with a polished chrome finish that complements its rectilinear form, achieving a sleek and elegant aesthetic. Its compact design is a testament to its refined engineering, packing immense

Classic Beauty

The EAR 509 mono amplifier, designed by the acclaimed Tim de Paravicini, has been a staple in professional studios and homes alike for over 30 years. Known for its high fidelity and robust 100-watt output, this timeless piece is meticulously crafted with a polished chrome finish that complements its rectilinear form, achieving a sleek and elegant aesthetic. Its compact design is a testament to its refined engineering, packing immense power without compromising on performance.

Limitless Possibilities

Built on a foundation of reliability, the EAR 509 benefits from three decades of expertise in servicing and design. Its intuitive self-biasing system simplifies valve adjustments with two sets of dials and four LEDs that ensure equal intensity, making it easy to maintain optimal performance.

Double the Output

The EAR 509s are engineered with industrial-grade components to withstand the rigours of professional audio environments. Optional balanced inputs cater to professional-grade applications, enhancing versatility. Each unit is uniquely matched with carefully selected valves to ensure the highest quality stereo output, reflecting our commitment to superior audio performance.

Bespoke from the Ground Up

At EAR Yoshino, we believe that exceptional audio starts with exceptional components. Tim de Paravicini has personally designed each output and power transformer with the finest musical experiences in mind. Locally hand-built and rigorously tested, these transformers ensure that the EAR 509s leverage their full 100-watt output capacity, delivering sound that resonates with clarity and depth.

Specifications

Valves:

  • Two PL509 (EL519)
  • Two ECC83 (12AX7)
  • One ECC85 (6AQ8)

Performance:

  • Frequency Response: 3Hz-30Khz (-1dB)
  • Signal-to-Noise Ratio: 96dB
  • Intermodulation Distortion (I.M.D.): 0.2%
  • Harmonic Distortion: 0.5% at 12Hz-60Kz (-3dB)

Connectivity:

  • Input: One Line (RCA) or Balanced (XLR)

Output:

  • Power Output: 100W into 4 and 8Ω (20-20KHz)

Dimensions and Weight:

  • Weight: 15.3kg
  • Dimensions: 300mm (L) x 254mm (W) x 150mm (H)

Power:

  • Consumption: 180 watts

With its unmatched craftsmanship and enduring performance, the EAR 509 mono amplifier continues to be a paragon of classic audio engineering, delivering limitless possibilities for audiophiles and professionals alike.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31342317298

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Twins9
Houston, US
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026
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swwkennyg
Houston, US
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
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Reviewed in the United States on April 14, 2026
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Monica Alzate
Cuba, US
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
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Reviewed in the United States on July 10, 2025
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Heather260
Waukegan, US
★★★★★ 5
The best no show socks
The only no show socks I have ever found that do not slide down. These are very comfortable and the extra tab on the back provides comfort by keeping shoes from rubbing the back of your foot. The top of the sock also comes up high enough to cushion the top of your foot all while still remaining hidden while wearing tennis shoes or even with my hey dudes.
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Reviewed in the United States on November 30, 2025
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Nick
San Leandro, US
★★★★★ 5
Great quality and fast shipping
Size: Medium, Color: (001) Black / Black / Castlerock
These socks are tight but after the first wash and dry , they fit perfect and NEVER slide off , ordered a second pack
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Reviewed in the United States on March 24, 2026

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