OPTIMUS BY KOSS Ultra Stereo Headphones PRO-155

( Brand: Optimus By Koss ), ( Model: PRO-155 ), ( Part Type: Headphone )

Review OPTIMUS BY KOSS Ultra Rare Vintage Stereo Headphones Exc

The Pro-155 Ultra Optimus Koss Stereo Headphones EXC is a high-quality audio solution that promises an immersive listening experience. These over-ear headphones are crafted with a durable yet lightweight frame, ensuring comfort during extended use. The cushioned ear cups are generously sized, providing a snug fit that blocks out ambient noise, allowing you to fully enjoy your music.

The Pro-155 Ultra Optimus Koss Stereo Headphones EXC boast a dynamic, high-fidelity sound that is sure to impress even the most discerning audiophiles. The 50mm drivers deliver rich, detailed bass, clear mid-range, and crisp, sparkling highs. This balanced sound stage allows for a natural, lifelike audio reproduction, making every note, every word, and every instrumental detail shine through.

The headphones feature a closed-back design, which not only helps to isolate sound but also enhances the bass response. This makes them ideal for genres like hip-hop, electronic music, and rock, where a strong, punchy bass is essential. However, the Pro-155 Ultra Optimus Koss Stereo Headphones EXC is versatile enough to handle a wide range of music genres, from classical to jazz to pop.

The Pro-155 Ultra Optimus Koss Stereo Headphones EXC is equipped with a detachable coiled cord with a 3.5mm plug, ensuring compatibility with a wide range of devices. The cord is 1.2 meters long, providing ample slack for comfortable use. The headphones also come with a 6.3mm adapter, allowing you to connect to devices with larger plugs, such as professional audio equipment.

The Pro-155 Ultra Optimus Koss Stereo Headphones EXC is more than just a high-performance audio device; it's a statement of style. The sleek, matte black finish is both elegant and understated, making these headphones a perfect accessory for any outfit or setting. The headphones also feature a foldable design, making them easy to transport and store.

In conclusion, the Pro-155 Ultra Optimus Koss Stereo Headphones EXC is a must-have for anyone who values high-quality sound and comfortable, long-lasting listening experiences. With its powerful sound, comfortable fit, and stylish design, these headphones are sure to become your go-to audio companion for all your listening needs.

1. Affordable Price: The Pro-155 Ultra Optimus Koss headphones are reasonably priced, making them an accessible option for those who are looking for high-quality audio without breaking the bank.

2. Durable Design: Koss headphones are known for their durable construction, and the Pro-155 Ultra Optimus model is no exception. These headphones are built to last, with adjustable headbands and comfortable ear cups.

3. Excellent Sound Quality: The Pro-155 Ultra Optimus Koss headphones offer excellent sound quality, with clear and balanced audio that is suitable for a wide range of music genres.

4. Portable and Lightweight: The compact and lightweight design of the Pro-155 Ultra Optimus Koss headphones makes them easy to carry around, making them a great option for commuters and travelers.

1. No Active Noise Cancellation: The Pro-155 Ultra Optimus Koss headphones do not have active noise cancellation features, which means that they may not be as effective in blocking out ambient noise as some other headphones on the market.

2. Limited Bass Response: While the Pro-155 Ultra Optimus Koss headphones offer excellent sound quality, they may not have as much bass response as some other headphones, which may be a drawback for fans of bass-heavy music genres.

3. Not Suitable for Gaming: The Pro-155 Ultra Optimus Koss headphones may not be the best option for gamers, as they lack the surround sound capabilities and microphone features that are often required for gaming.

Overall, the Pro-155 Ultra Optimus Koss stereo headphones are a great option for those who are looking for high-quality audio at an affordable price. They offer excellent sound quality, durability, and portability, making them a great option for music lovers who are always on the go. However, the lack of active noise cancellation and limited bass response may be a drawback for some users. If you are looking for a budget-friendly option for listening to music, the Pro-155 Ultra Optimus Koss headphones are definitely worth considering.

I would recommend the Pro-155 Ultra Optimus Koss stereo headphones to music lovers who are looking for a high-quality audio experience without breaking the bank. These headphones are durable, portable, and offer excellent sound quality, making them a great option for commuters, travelers, and anyone who loves listening to music. However, if you require active noise cancellation or surround sound capabilities, you may want to consider other options that are better suited to your needs.

Details:

These have a very similar build to the Koss esp-950 electrostatic headphones so those ear pads and parts may work on as well. The cable is in perfect condition and very straight doesn kink up at all. The headband is in perfect condition with no damage. The ear pads and foam are a bit deteriorated but not too bad.

Overall these are very comfortable and sound incredible they fully functional. They are still very comfortable and fit completely over the ear with ease. They have some light scratching and marks but are not broken or damaged.

As stated, these have exceptional clarity in the sound. These are extremely rare headphones that don't come up for sale on the market very often. These are phenoms headphones with exceptional clarity and balanced sound.

These are in excellent condition with minimal signs of wear.

part #: pro155 price

• $49.49

specifications vintaelec:

• brand: Optimus By Koss
• model: Pro-155
• part type: Headphone

Ratings:

1. Bedankt voor een snelle, prettige transactie. Uitstekende koper. 05-22-18
2. Look great, work great, and super quick delivery. Thank you. 05-11-18
3. PAID FAST 05-21-18
4. Thank you for an easy, pleasant transaction. Excellent buyer.. 05-15-18
5. Great price, quick ship and really nice leather high tops. 05-14-18

Offer vintaelec:

• bids: 0
• Started: May 24, 2018, 7:18 pm
• Sold: 0
• quantity: 1
• best offer: true

General vintaelec:

• vintage electronics > equipment
• in stock: Yes

Seller vintaelec:

• city: Foresthill, California
• zipcode: 95631

Payments vintaelec:

• PayPal

Returns vintaelec:

• policy: no returns

Shipping vintaelec:

• handling: 2 days
• cost: $5.5
• type: Calculated

Optimus By Koss PRO-155 Is Similar To:

• Pro-25 Radioshack Vintage Radio Shack Optimus Headphones Titanium Layered Diaphram (41.1% similar) Volume control portable light weight...(January 5th, 2019)
• Radio Shack 14-654 Vintage Optimus Sct-86 Stereo Cassette Deck Dolby Nr Tested Read (28.6% similar) If it records. What has been tested not - mic in ports...(November 7th, 2025)