OTARI Reel Player Recorder MX5050B0-III

( Brand: Otari ), ( Manufacturer Part Number: B0-III ), ( Model: OTARI MX5050 B0-III ), ( Type: Tape Recorder ), ( Country Of Origin: Japan )

Review OTARI B0-iii Reel To Player Recorder

The **Otari B-0-III MX5050B-0-III** is a legendary, high-end reel-to-reel tape recorder that embodies the pinnacle of analog audio engineering from the golden era of tape recording. Designed in the late 1970s and early 1980s by the Japanese manufacturer Otari, this model represents a refined evolution of their acclaimed B-series tape machines, blending precision craftsmanship with cutting-edge technology of its time. The B-0-III MX5050B-0-III is a dual-capstan, dual-rotor machine, meaning it features two independent capstans and two separate motor-driven rotors for each reel, ensuring flawless tape transport and minimal wow and flutter critical for professional recording and playback. Its robust construction, featuring a heavy-duty aluminum chassis and precision-machined components, guarantees durability and stability, making it a favorite among audio engineers, musicians, and audiophiles who demand the highest fidelity.

At the heart of the B-0-III MX5050B-0-III lies its **MX5050B-0-III tape transport system**, a sophisticated mechanism that delivers near-perfect tape speed consistency and smooth operation. The machine is equipped with **dual 12V DC motors** for each reel, allowing for independent control of tape speed, which is essential for balancing the tension between the two reels during recording and playback. This dual-motor design also enables the machine to handle a wide range of tape types, from standard 1/4" and 1/2" tapes to specialized formats, without compromising performance. The capstans are driven by **precision ball bearings**, ensuring smooth and silent operation, while the **dual-rotor design** minimizes tape flutter, a common issue in older reel-to-reel machines.

The B-0-III MX5050B-0-III is a **fully analog** machine, devoid of digital interference, which appeals to purists who value the organic warmth and depth of analog recording. Its **high-quality tape heads**, including a separate erase head, record head, and playback head, are designed to capture and reproduce sound with exceptional clarity and dynamic range. The machine features **variable speed control**, allowing users to adjust playback speeds from 7.5 ips (inches per second) up to 38 ips, catering to both standard and high-speed recording applications. This versatility makes it suitable for everything from multi-track recording sessions to high-fidelity mastering work. Additionally, the B-0-III MX5050B-0-III includes a **built-in dolby noise reduction system**, which helps to reduce background hiss and improve the signal-to-noise ratio, making it ideal for capturing quiet passages or preserving the integrity of recorded audio over time.

The control panel of the B-0-III MX5050B-0-III is a masterpiece of ergonomic design, featuring a **combination of rotary knobs, switches, and LED indicators** that provide intuitive access to all essential functions. The **transport controls**, including play, record, rewind, and fast-forward, are clearly labeled and positioned for easy use, while the **tape speed selector** allows for precise adjustments to accommodate different tape formats. The machine also includes a **head cleaning system**, ensuring that the tape heads remain free of dust and debris for optimal performance. The **metering system** is another standout feature, with **VU meters** that provide real-time feedback on signal levels, helping users maintain proper recording levels to avoid distortion or clipping. The B-0-III MX5050B-0-III also supports **multi-track recording** via its **auxiliary inputs and outputs**, making it a versatile tool for both mono and stereo applications.

Beyond its technical specifications, the Otari B-0-III MX5050B-0-III carries a rich legacy as a symbol of analog excellence. Otari, a company known for its innovation in tape technology, engineered this machine to meet the demands of professional studios while remaining accessible to enthusiasts. The B-0-III MX5050B-0-III is not just a tape recorder; it is a piece of audio history, embodying the craftsmanship and attention to detail that defined the era of analog recording. Whether used for archival purposes, educational demonstrations, or modern analog revival projects, this machine offers a tangible connection to the past while delivering performance that remains unmatched in the world of reel-to-reel technology. For those who appreciate the art of analog audio, the B-0-III MX5050B-0-III stands as a timeless testament to the enduring appeal of tape recording.

### **Pros and Cons of buying a Otari B0-III MX5050B0-III Reel-to-Reel Tape Recorder**

#### **Pros**

1. **Exceptional Sound Quality**

The B0-III is renowned for its high-fidelity audio reproduction, thanks to its high-quality tape heads, motor, and circuitry. It is capable of capturing and playing back sound with minimal distortion, making it ideal for professional audio work, music recording, and archival purposes.

2. **Durable and Reliable Construction**

Otari is a brand with a long history in professional audio equipment, and the B0-III is built to last. Its robust metal chassis, precision-engineered components, and solid-state electronics ensure long-term reliability, even with frequent use.

3. **Versatile Recording Capabilities**

The B0-III supports a wide range of tape speeds (from 7.5 IPS to 38 IPS) and formats, including standard reel-to-reel tapes (e.g., 1/4" and 1/2" tapes). This flexibility makes it suitable for both analog recording and playback of vintage or modern tapes.

4. **Professional-Grade Features**

It includes features such as a high-quality preamp, balanced inputs/outputs, and adjustable EQ settings, which are essential for studio and field recording applications. The machine also offers multiple tracking options (mono, stereo, and multi-track) for complex recording setups.

5. **Vintage Aesthetic with Modern Functionality**

The B0-III retains the classic look of analog reel-to-reel recorders while incorporating modern reliability. Its design is both functional and visually appealing, making it a desirable piece for audiophiles and collectors.

6. **Low Noise and High Signal-to-Noise Ratio**

The B0-III is designed to minimize background noise, ensuring that the recorded audio remains clean and clear. This is particularly important for capturing delicate sounds or preserving archival recordings.

7. **Compatibility with Modern Equipment**

While primarily an analog device, the B0-III can be integrated with modern audio interfaces or mixers via its XLR inputs/outputs, allowing for hybrid recording setups.

8. **Resale and Collectible Value**

Due to its reputation and scarcity, the B0-III holds significant value in the used market. It is often sought after by collectors, musicians, and audio engineers, which can make it a wise long-term investment.

---

#### **Cons**

1. **High Initial Cost**

The B0-III is an expensive piece of equipment, especially when purchased new or in excellent condition. The price can be prohibitive for hobbyists or casual users who may not need its full capabilities.

2. **Maintenance Requirements**

Like all reel-to-reel recorders, the B0-III requires regular maintenance, including head cleaning, motor lubrication, and tape handling. Neglecting maintenance can lead to degraded sound quality or mechanical failure.

3. **Learning Curve**

Operating a reel-to-reel recorder, especially one as advanced as the B0-III, requires familiarity with analog audio principles. Users must understand tape speeds, tracking, and signal routing, which can be intimidating for beginners.

4. **Limited Portability**

The B0-III is a large, heavy machine designed for studio use. Its size and weight make it impractical for field recording or on-the-go sessions, unlike digital recorders or portable tape machines.

5. **Tape Dependency**

The machine relies on physical tape media, which can degrade over time, stretch, or become damaged. Unlike digital recordings, there is no easy way to "fix" a damaged tape, and replacements can be costly.

6. **No Built-in Effects or Digital Features**

The B0-III lacks modern digital features such as USB connectivity, built-in effects, or software integration. Users must rely on external devices for additional functionality.

7. **Power Requirements**

The B0-III typically requires a dedicated power source (e.g., a transformer or battery pack), which adds to the setup complexity and cost.

8. **Market Availability and Pricing**

While the B0-III is highly regarded, finding one in good condition can be challenging, and prices for used units can fluctuate widely. Scams or counterfeit units may also be a risk when purchasing from third-party sellers.

---

### **Conclusion**

The Otari B0-III MX5050B0-III is a superior reel-to-reel tape recorder that excels in sound quality, durability, and professional-grade features. It is an ideal choice for audiophiles, musicians, archivists, and audio engineers who prioritize analog recording and appreciate the craftsmanship of high-end equipment. However, its high cost, maintenance demands, and complexity make it less suitable for casual users or those seeking convenience and portability.

If you are passionate about analog audio, have the budget and technical knowledge to maintain the machine, and value the warmth and fidelity of tape recordings, the B0-III is an outstanding investment. For most other users, a more affordable or digital alternative may be a better fit.

### **Recommendation**

- You are a professional audio engineer, musician, or archivist working with analog media.

- You have experience with reel-to-reel recorders or are willing to learn.

- You prioritize sound quality and are prepared for the maintenance and cost.

- You appreciate the vintage aesthetic and collectible value of the machine.

- You are a beginner or prefer digital recording solutions.

- You need portability or on-the-go recording capabilities.

- You cannot afford the upfront cost or ongoing maintenance expenses.

- You are primarily interested in modern features like USB connectivity or digital effects.

For those on a tighter budget, consider exploring other Otari models (e.g., the B0-III MX5050B0-II) or used units from reputable sellers. Alternatively, digital multi-track recorders or hybrid systems may offer a balance between convenience and analog warmth.

Details:

OTARI MX5050B0-III Reel to Player Recorder .I tried it, it rewinds, fast forwards, plays but the sound doesn right way, maybe needs some tuneup. No further test has been done.Because of the Problem that I have mentioned, am selling it as: For Parts Only.

part #: mx5050 prices

• $1400.00-$4500.00

specifications reeltapevintagego:

• brand: Otari
• mpn: B0-iii
• model: Otari Mx5050 B0-iii
• type: Tape Recorder
• country of origin: Japan

shipping reeltapevintagego:

returns reeltapevintagego:

• policy: Returns Accepted
• paid by: Buyer
• method: Money back
• time: 14 Days

offer reeltapevintagego:

• quantity: 1
• sold: 0
• options: Seller-arranged-local-pickup
• started: May 9, 2026
• availability: In Stock

seller reeltapevintagego:

• # reviews: 5167
• city: Dacula, Georgia
• rating: 100.0%

payments reeltapevintagego:

• credit card: Visa
• wallet: Apple-pay
• other

general reeltapevintagego:

• condition: For parts or not working
• Vintage Electronics > Vintage Audio Video > Reel-to-Reel Tape Recorders

Otari MX5050 Is Similar To:

• Qxhd Track System Mx 5050 Otari ...4 Reel (24.2% similar) These Otari decks are known to hold up very well. This is a nice deck. Thx for your consideration. This item may be disassembled for shipping purposes. The laminate console has some light scratches...(February 12th, 2015)
• Qxhd Track Mx Reel ...4 Otari 5050 (33.3% similar) Numb 3991, AC117V 60 Hz 120W. The box is 16X19X8, silver Gary, broadcast automation ctr...(February 18th, 2015)
• Otari Reel 5050b (33.8% similar) ...(January 8th, 2015)
• 5050mkiii Reference Pass Studio Analog The Dont Reel Otari Return (32.8% similar) Price does vary by much depending on foreign destinations. Check my 500 positive rating on and do buy in confidence cheers and give a fantastic treat to your ears happy audiophile buying. 2 enjoy a free shipping within the continental states. Otari 5050 mark 3 actual reference studio reel to reel ...(January 17th, 2015)
• X-330 Akai Cross Field Reel To Tape Recorder Otari (50.5% similar) It looks to have damage to the wood in two different areas, so please view the photos i've posted to see the condition aka x 330 reel to reel tape recorder for parts or repairs. The two plastic mounts that hold the reels in place have some damage to them. Feel free to ask any questions. The is ...(July 21st, 2016)
• Ars100dc Otari Vintage Reel To Player Players Metal Cabinet Parts Omaha (41.7% similar) ...(April 13th, 2018)
• Biii-2 Reel--reel Rolling Stand Mx5050 Recorder Otari (39.2% similar) Originally used in production studio. height recorder 21 in length 17 in width 9 unrolling stand adds 25 in to height weight 62 lbs. Excluding pedestal missing hub adapters and take up reel. Has not been used for recording or playback in sometime. Some small chips on body, and some scratches...(February 16th, 2015)
• Cdr-18 Otari Cd Recorder Crd-18 (37.5% similar) Excellent condition. Selling my CD recorder. Comes with manual and power chord...(October 14th, 2017)
• Cr-705 Otari Remote Control For Reel To (34.1% similar) It spent most ifs life in a high school choir room closet. Some light oxidation is visible on the connector, but easily cleanable with contact cleaner. Otari CR-705 remote control unit is in great shape for its age...(February 25th, 2019)
• Control Cr-705a Mx-5050 Remote Recorder Reel Otari (50.5% similar) Otari Cr 705A remote control. Works with MX5050, MTR10 and MTR12 model's in good working condition, just missing one screw, see pictures for cosmetic details...(January 10th, 2015)
• Copy Om Channel Otari Read Dp-4050 Reel Maker 4 Recorder Player Machine (46.7% similar) Thanks much. Included is the main unit, cords, and manual only. Due to lack of equipment, no further testing could be performed. Powers up nicely. All lights dials turn on and rotate as they should. Overall physical condition is good clean, showing some minor signs of previous use wear please see ...(February 27th, 2015)