ONKYO 199394 Quartz Clock Synthesized Tuner Amplifier Remote R-21 RC-257S

( Brand: Onkyo ), ( Manufacturer Part Number: 199394 ), ( Model: R-21 ), ( Type: Tuner )

Review ONKYO 1993 94 Quartz Clock Synthesized Tuner Amplifier Remote Bundle

The **Onkyo 199394 R-21 Quartz Clock Synthesized Tuner Amplifier** paired with the **RC-257S Remote Control** is a refined and versatile audio system designed to elevate your listening experience with precision, convenience, and timeless elegance. This model represents Onkyo s commitment to blending cutting-edge technology with classic audio engineering, making it an ideal choice for audiophiles and casual listeners alike. At its core, the **R-21** is a high-performance tuner-amplifier that combines a **quartz clock synthesized tuner** with a **built-in amplifier**, delivering crystal-clear sound across a wide range of frequencies. The synthesized tuning system ensures ultra-stable frequency accuracy, minimizing drift and ensuring that your favorite stations remain perfectly locked in, whether you re tuning into AM, FM, or even the less common LW (Long Wave) bands. The tuner s **signal-to-noise ratio** is optimized for clarity, while its **selectable tuning speeds** from rapid station hopping to precise manual tuning offer flexibility for every listening scenario.

The **integrated amplifier** section of the R-21 is equally impressive, featuring a **power output of 20 watts per channel (RMS, 8 )** at a clean and distortion-free level, making it well-suited for driving mid-sized speakers or even small home theater systems. Its **balanced design** ensures minimal interference, while the **low-distortion output** delivers rich, dynamic sound with extended highs and deep, resonant lows. The amplifier s **classical architecture** with its smooth, analog-inspired response provides a warm, natural sound signature that enhances both music and speech, whether you re enjoying a vinyl record, a CD, or a radio broadcast. For those who appreciate analog warmth, the R-21 also includes a **phono input**, allowing you to connect a turntable directly for a seamless analog listening experience.

Complementing the R-21 is the **RC-257S Remote Control**, a sleek, ergonomically designed unit that extends the system s functionality with ease. The remote features a **large, backlit display** for clear visibility of station information, time, and settings, even in low-light conditions. Its **one-touch preset buttons** (up to 20 programmable presets) allow for instant access to your favorite stations, while the **tuning dial** provides tactile feedback for precise manual tuning. Additional controls include **volume adjustment, input selection, and clock functions**, all of which are intuitively arranged for effortless operation. The remote s **durable construction** and **ergonomic layout** ensure comfortable use over extended listening sessions, making it a practical addition to any audio setup.

Beyond its technical prowess, the **Onkyo 199394 R-21** exudes a sense of sophistication with its **minimalist yet functional design**. The unit s **metallic chassis** and **clean, uncluttered front panel** reflect Onkyo s emphasis on both form and function, blending seamlessly into modern or traditional audio environments. The **clock display** not only keeps time but also adds a touch of practicality, ensuring you never miss an appointment or event. Whether used as a standalone tuner-amplifier or integrated into a larger audio system, the R-21 delivers **reliable performance, exceptional sound quality, and user-friendly operation**, making it a timeless investment for anyone seeking a high-quality, all-in-one audio solution.

**Pros and Cons of buying a Onkyo 199394 R-21 Quartz Clock Synthesized Tuner Amplifier with Remote (RC-257S)**

### **Pros**

1. **Versatility in Functionality** This unit combines a tuner, clock, and amplifier in one, making it ideal for those who want a compact, all-in-one audio solution. The tuner supports AM/FM radio, and the clock provides timekeeping with a digital display and chimes.

2. **Decent Audio Performance** As an integrated amplifier, it offers a reasonable power output (likely around 20 30 watts per channel, depending on the configuration) for small to medium-sized rooms. The synthesized tuner provides clear radio reception, which is useful for background music or news.

3. **Compact and Space-Efficient Design** The compact form factor is beneficial for smaller setups where space is limited. It can fit neatly on a shelf or desk without taking up much room.

4. **Remote Control Convenience** The included remote (RC-257S) allows for easy operation of the tuner, clock, and amplifier functions without needing to touch the unit. This is particularly useful for adjusting volume, selecting stations, or setting the clock.

5. **Budget-Friendly** Compared to dedicated tuners or amplifiers, this unit offers multiple functions at a relatively affordable price, making it a cost-effective choice for basic audio needs.

6. **Clock Features** The built-in quartz clock with chimes and a digital display adds practicality for those who want a functional timepiece in their audio setup. It can also serve as a backup time source.

7. **Compatibility with Speakers** While not a high-end audio component, it can drive a decent pair of bookshelf or small speakers, providing adequate sound quality for casual listening, background music, or office use.

---

### **Cons**

1. **Limited Audio Power** The power output is likely modest (e.g., 20W RMS per channel), which may not be sufficient for larger rooms or high-quality speakers. It may struggle with bass-heavy music or fill larger spaces adequately.

2. **Outdated Technology** The unit appears to be an older model (based on the name and features), which means it lacks modern connectivity options like Bluetooth, USB, or digital inputs. This limits its compatibility with contemporary audio sources (e.g., smartphones, streaming devices).

3. **Basic Tuner Performance** While the synthesized tuner works well for AM/FM, it lacks features like RDS (Radio Data System), which provides station information and traffic updates. The reception quality may also be inconsistent in areas with poor signal strength.

4. **No Preamp Outputs** The lack of preamp outputs means you cannot connect it to a receiver or other audio systems without losing signal strength. This limits its flexibility for more complex setups.

5. **Potential for Wear and Tear** As an older model, the unit may have mechanical components (e.g., clock mechanisms, tuner dials) that could wear out over time, requiring maintenance or replacement parts.

6. **Limited Brand Support** Onkyo has shifted focus away from consumer audio products in recent years, so finding replacement parts, firmware updates, or customer support may be difficult.

7. **Design and Build Quality** The unit may not have the premium build quality of modern audio equipment, with potential issues like plastic components or less robust construction.

8. **No Digital or Streaming Features** Without Bluetooth, USB, or internet connectivity, it cannot stream music from services like Spotify, Apple Music, or Pandora, limiting its modern usability.

---

### **Conclusion**

The Onkyo 199394 R-21 is a functional, all-in-one audio and clock unit that excels in simplicity and space efficiency. It is well-suited for basic audio needs such as background music, radio listening, or as a secondary timepiece in an office or small living space. However, its limitations such as outdated technology, modest power output, and lack of modern connectivity make it less ideal for audiophiles, larger rooms, or users who rely on digital streaming.

If you need a reliable, no-frills tuner and amplifier with a clock for casual use and don t require advanced features, this unit could be a practical purchase. However, if you prioritize modern connectivity, higher audio quality, or scalability for future upgrades, investing in a newer model with Bluetooth, digital inputs, or better power handling would be a more future-proof choice.

---

### **Recommendation**

- You need a simple, compact tuner and amplifier for basic audio use (e.g., background music, radio).

- You want a functional clock with chimes in your setup.

- You are on a tight budget and don t require advanced features.

- You already have a compatible speaker system that matches the unit s power output.

- You need Bluetooth, USB, or digital inputs for modern audio sources.

- You plan to use it in a large room or with high-quality speakers.

- You want a long-term investment with modern features and support.

- You prioritize high-fidelity audio or plan to expand your audio system in the future.

For a more modern alternative, consider a dedicated Bluetooth tuner (like the Sony STR-DN1080) or a compact amplifier with Bluetooth (like the Yamaha A-S301) if you want better connectivity and audio performance.

Details:

The Onkyo R-21 Quartz Clock Synthesized Tuner Amplifier from 1993 94 is a high-quality audio device that offers synthesized tuning capabilities. With the trusted Onkyo brand reputation and advanced technology, this tuner amplifier is a reliable choice for those looking to enhance their home audio experience. This amplifier, along with the remote RC-257S, allows users to easily adjust and control their audio settings precision.

part #: 199394 prices

• $31.44-$100.00

specifications theatereceiv:

• brand: Onkyo
• mpn: 199394
• model: R-21
• type: Tuner

offer theatereceiv:

• options: Ship-to-home
• quantity: 1
• started: May 11, 2026
• availability: In Stock
• best offers: True
• sold: 0

general theatereceiv:

• Home Audio > Receivers Amplifiers > Receivers
• condition: Used

seller theatereceiv:

• # reviews: 571
• city: Tullahoma, Tennessee
• rating: 100.0%

shipping theatereceiv:

• type: Fixed
• carrier: USPS
• cost: $35.00
• transit: 3-7 Days
• service: USPS Ground Advantage
• class: Standard

returns theatereceiv:

• paid by: Buyer
• method: Money back
• policy: Returns Accepted
• time: 30 Days

payments theatereceiv:

• credit card: Diners-club
• wallet: Apple-pay
• other

Onkyo 199394 Is Similar To:

• 0051398008307 Used Onkyo Channel Watt Receiver Instructions Bundle (34.4% similar) Comes as described. Item has been tested and works. See pictures for details other features. Comes with everything pictured. Used Onkyo TX channel 50 watt receiver instructions item is...(January 28th, 2019)
• 0751398007118 Onkyo Tx Channel Watt Receiver With Bundle Remote (36.5% similar) 1 channel 115 watt receiver with remote tested working great. Comes with remote, manual, and HDMI cable. Onkyo TX SR674...(March 9th, 2018)
• 0751398008313 Mint Onkyo Tx Channel Watt Receiver With Remote (37% similar) This Onkyo receiver is in perfect working condition with all lights and fully functional...(August 9th, 2018)
• 4961330017716 Onkyo Home Theater Av Receiver No Remote (36% similar) 1-CHANNEL home theater av receiver no remote. Onkyo TX-SR602 high-performance...(July 29th, 2018)
• 500101408 Onkyo Tuner Amplifier (36.2% similar) Safe in my closet but that's no fun - buy it and put to use. Old receiver in working order...(December 29th, 2018)
• A-8015 Onkyo Model Integra Integrated Stereo Amplifier Watts Per Ch (43.4% similar) 5MVMM , 150MV line signal to noise ratio: 67DB MC 80DB 84DB output: semiconductors: 5 x ICC, 37 transistors, 26 diodes dimensions: 435 122 392MM two tape rec play connections tuner inputted aux input mag. Phono input connections for 2 sets of 8 ohm SPEAKERS2 switched ac OUTLET'S1 un switched outlet ...(January 11th, 2019)
• A-8037 Onkyo Intergrated Stereo Amplifier (38.1% similar) When an item is purchased it retested prior to being packed for shipping. Specializing in stereo receivers, amplifiers, turntables, tape decks, CD, DVD laser disc players recorders. Speaker a b- a b controls this unit receiver our standard service and tune-up. The machine is then lubricated where ...(August 3rd, 2017)
• A-8048v Onkyou Onkyo Stereo Amplifier Receiver (38.2% similar) Matching Onkyo stereo system in great physical and working condition...(February 18th, 2017)
• A-809 Onkyo Integra Stereo Integrated Amplifier Excellent Condition (34.2% similar) Unit is fully functional and sounds great. Original owner selling off extensive collection of vintage audio equipment...(September 3rd, 2018)
• A-rv410 Onkyo Audio Video Control Amplifier (35.9% similar) The sound barley comes through on all speaker outputs same, has to be turned up way hear. Up for sale is an Onkyo A-RV410 audio video control amplifier. It has been tested and everything is working as should, inputs, outputs, channels, etc. This was working then sat in dry storage for a while and ...(May 30th, 2018)
• A-sv610pro Onkyo Audio Video Control Amplifier Remote Bundle Great Cond (47.4% similar) Great condition send any questions. Tested and working see photos...(June 30th, 2018)