EAR Yoshino 509 Monoblock Pair
SKU: 31342317298

EAR Yoshino 509 Monoblock Pair

Sale price$10124.55 Regular price$11249.50
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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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Sarah W. Michels
Natrona Heights, US
★★★★★ 5
Long lasting
Size: Medium
My dogs love these and they last pretty long. I take them away when they get very small so I think they’re pretty safe.
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Reviewed in the United States on May 27, 2026
C
Verified Purchase
Corinne S
Charlottesville, US
★★★★★ 3
Meant for bigger dogs than mine
Size: Small
I bought this for my 10 month old pup who’s a VERY aggressive chewer. I’m going to say this is made for a large, older (than mine) dog. She tried to chew a couple times but eventually just walked away from it when I offered it to her and she had only made a few scratches in it. If you have that bigger dog that’s an aggressive chewer, it would be a good value for your money and will keep the engagement high for a long time with its heavy duty quality.
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Reviewed in the United States on April 3, 2026
D
Verified Purchase
DG
Charlottesville, US
★★★★★ 5
Finally… a dog chew that doesn’t become a homemade prison shank
Size: Medium
My dog has a real talent: turning every “tough chew” into a sharp, weaponized shard that could star in an episode of Locked Up: Canine Edition. But THIS chew? Absolute game changer. For the first time ever, I can relax—no splinters, no pointy edges, no fear he’s secretly crafting a shiv under the couch. Just happy, safe chewing that actually lasts longer than five minutes. It’s durable, it’s safe, it keeps him busy, and I no longer feel like I’m living with a furry little inmate planning an escape. Highly recommend if your dog chews like he’s got nothing but time.
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Reviewed in the United States on January 29, 2026
A
Verified Purchase
Axmceach
Waukegan, US
★★★★★ 4
Would buy again
Size: Small
Would have given 5 stars, but my dog was able to chew this down pretty quickly, so not the most durable. I do like that this is made with better material than other dog chews, so I would buy again.
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Reviewed in the United States on February 12, 2026
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charlie badger
New York, US
★★★★★ 5
Convenient Credit Card
This is an effortless and convenient way to purchase Amazon products. Unfortunately I am on it almost daily so the cash back feature is a plus.
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Reviewed in the United States on June 10, 2026

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