SKU: 6024820467

Oriolus BA300S New Version Portable Tube Headphone Amplifier

$166.05 $184.50
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

Oriolus BA300S New Version Portable Tube Headphone AmplifierParameters: Machine gain: +3dB 4. 4mm input and 4. 4mm output Output power: 350mW(32 load) S N: 110db THD+N: 0. 02% Playback time: 7H Frequency range: 10Hz 50KHz (+ 0. 5dB) Net weight: 165g Size: 120 x 57 x16. 5mm Weight: 0. 5kg Features: It adopts two micro tubes to amplify, current mode operational amplifier and diffused output, and 4. 4mm balanced input and output. Superior power management ensures the performance of the whole machine. The unit

Parameters:

Machine gain: +3dB
4.4mm input and 4.4mm output
Output power: 350mW(32Ω load)
S/N: 110db
THD+N:0.02%
Playback time:7H
Frequency range: 10Hz - 50KHz (+/-0.5dB)
Net weight: 165g
Size: 120 x 57 x16.5mm
Weight:0.5kg

Features:

It adopts two micro-tubes to amplify, current-mode operational amplifier and diffused output, and 4.4mm balanced input and output.

Superior power management ensures the performance of the whole machine.

The unit does not have volume control, and the whole machine gains +3dB, which improves the output amplitude of most front ends.

The signal is amplified by the bile duct, and the output is rich in bile, satisfying the different sound experience of the user.
Built-in lithium polymer rechargeable battery, charging for 3 hours, battery life for 7 hours.

 
 
 
 
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: 6024820467

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4.5 ★★★★★
Based on 27 reviews
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pstrcork
Lake Worth, US
★★★★★ 4
Great feel, great fit, great value! Not great if you need shoes that breathe well...
Size: 10, Color: Brown
What did I notice about these shoes as a Cole Haan junkie? I was looking for some "cheapies" that were somewhat close to Haan's comfort. Tried several and these are by far the closest thing! So comfortable! These shoes fit according to size- and it was sad when I had to take out the insoles that came with these for my arch support ones- the insoles that came with the Bruno's are amazing. They are stylish and seem well built but I've only been wearing them for a couple of weeks. They get 4 stars because of a few things but overall a GREAT value for money! "Downsides" include fact that they breathe as well as we do underwater- not well at all! If you struggle with foot sweat- I'd look elsewhere. Also- the soles are super comfy but I get rocks, debris, and other things stuck in the deep grooves almost every time I walk off sidewalk. Just something to be ready to pick out regularly. Overall though- strong recommendation! Hopefully they don't rip out on me in a month! Will update if they do! :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2025
H
Verified Purchase
Hector R.
Natrona Heights, US
★★★★★ 5
good buy
Size: 10, Color: All Black
best work shoes ever bought too bad they don’t sell them anymore
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Reviewed in the United States on March 9, 2026
D
Verified Purchase
Dan Che
San Leandro, US
★★★★★ 5
Perfect Blend of Comfort and Style
Size: 9, Color: Brown, Size: 9, Color: Brown
I recently purchased size 9 of these shoes, and they exceeded my expectations in every way! Here’s what I love about them: 1. Comfort: The moment I put them on, I noticed how soft and supportive they felt. The cushioning provides all-day comfort, making them perfect for long walks, workdays, or running errands. 2. Fit: The sizing is spot-on! I ordered my usual size, and they fit perfectly with no need to size up or down. There’s enough room for my toes to move without feeling too loose or tight. 3. Style: These shoes look even better in person. The design is sleek and versatile, making them easy to pair with both casual and semi-formal outfits. I’ve received several compliments already! 4. Durability: I put it on the day of purchase. After wearing them daily for a couple of days, they still look brand new. The stitching and material seem high-quality and built to last. 5. Value for Money: For the price, these shoes deliver exceptional value. You’re getting premium comfort and style without breaking the bank. Final Thoughts: If you’re looking for shoes that offer comfort, style, and durability, I highly recommend giving these a try. I’ll definitely be considering another pair in a different color soon! To conclude, I’m very happy for this purchase. Will definitely buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2025
R
Verified Purchase
Roderick
Dallas, US
★★★★★ 5
Great Purchase
Size: 12, Color: Black
These shoes are great. They look great and extremely comfortable.
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Reviewed in the United States on May 10, 2026
I
Verified Purchase
Isaiah O
Omaha, US
★★★★★ 5
Comfortable, Easy to Clean, and Held Up at Coachella
Size: 12, Color: White, Size: 12, Color: White
I’m really happy with this purchase. The shoes are very comfortable, and the product description is accurate. I followed the sizing recommendation based on my foot type and went one size up—they fit perfectly. I bought these for Coachella, and they definitely held up. I was on my feet all day, and they stayed comfortable the entire time. What impressed me most is how easy they were to keep clean. At the end of each day, I was able to wipe them down and maintain their whiteness without much effort. Once I got home, I gave them a deeper clean, and they honestly looked as good as new. Even the laces cleaned up easily. Now I’ve transitioned them into my regular work shoes, and they still look great. Overall, I’m very satisfied with this purchase and would definitely recommend them.
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Reviewed in the United States on May 4, 2026

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