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  3. DYNACO 561356

DYNACO 561356 Stereo Power Amplifier Transistor 400

561356 Dynaco 400 Stereo Power Amplifier Replacement Parts Transistor #

( Brand: Dynaco ), ( Manufacturer Part Number: 561356 ), ( Type: Power Amplifier ), ( Unit Type: Unit ), ( Compatible Model: Dynaco Stereo ), ( Country Of Origin: United States ), ( California Prop 65 Warning: No Chemicals )

Review DYNACO 400 Stereo Power Amplifier Replacement Parts Transistor

The Dynaco 561356 400 Stereo Power Amplifier is a transistor-based audio amplifier that delivers an impressive 400 watts of power per channel. This amplifier, designed with audiophiles in mind, is known for its high-fidelity sound and robust construction.

The Dynaco 561356 features a class AB circuit topology, which provides a good balance between power and efficiency. Each channel utilizes a total of eight bipolar transistors, arranged in parallel pairs for improved current handling and reduced distortion. The amplifier's power supply is generously sized, with large filter capacitors and a large toroidal transformer, ensuring a stable voltage and minimal ripple.

The input section of the Dynaco 561356 is equipped with two sets of high-quality gold-plated RCA inputs, allowing for easy connection of audio sources. The output section features two pairs of heavy-duty binding posts, capable of handling speakers with impedances ranging from 2 to 8 ohms.

The amplifier's chassis is constructed of heavy-gauge steel, giving it a solid and substantial feel. The front panel is adorned with a classic silver meter bridge, which displays the output level of each channel. The control knobs are large and easily accessible, allowing for quick adjustments to volume levels.

The Dynaco 561356 is a well-engineered and well-built amplifier, designed to deliver high-quality audio performance. With its impressive power output, low distortion, and robust construction, it is an excellent choice for those seeking a powerful and faithful amplifier for their audio system.

Dynaco ST-70 vs. Dynaco 561356 400: A Comparative Analysis of Transistor Stereo Power Amplifiers

Introduction:

The Dynaco ST-70 and Dynaco 561356 400 are both iconic transistor stereo power amplifiers from the Dynaco brand, known for their high-quality audio components. In this analysis, we will compare these two amplifiers based on various factors to help potential buyers make an informed decision.

Price:

The Dynaco 561356 400 is typically more affordable than the Dynaco ST-70. The price difference can be significant, making the Dynaco 561356 400 an attractive option for budget-conscious audiophiles.

Power Output:

The Dynaco 561356 400 delivers 400 watts per channel (WPC) into 8 ohms, while the Dynaco ST-70 offers 35 watts per channel (WPC) into 8 ohms. The higher power output of the Dynaco 561356 400 makes it more suitable for driving demanding speakers or filling larger listening rooms.

Sound Quality:

Both amplifiers are renowned for their exceptional sound quality. The Dynaco ST-70 is known for its detailed and clear sound, with a natural and warm tone. The Dynaco 561356 400, on the other hand, delivers a slightly more powerful and dynamic sound, making it an excellent choice for those who prefer a more robust sound signature.

Durability and Reliability:

Both amplifiers are known for their durability and reliability. Dynaco amplifiers are built to last, and their transistor-based designs offer excellent reliability compared to vacuum tube amplifiers. However, it is essential to note that the Dynaco 561356 400 is a relatively new model in comparison to the Dynaco ST-70, which has been in production for decades. As a result, the long-term reliability of the Dynaco 561356 400 may not be as well-established as that of the Dynaco ST-70.

Versatility:

The Dynaco 561356 400 is a more versatile amplifier, offering multiple input options, including RCA and XLR. It also features a selectable gain switch, making it compatible with a wider range of speakers and sources. In contrast, the Dynaco ST-70 has a more straightforward design, with a single pair of input and output terminals.

Conclusion:

In conclusion, both the Dynaco ST-70 and Dynaco 561356 400 are excellent transistor stereo power amplifiers with their unique strengths and weaknesses. The Dynaco 561356 400 is the more affordable and powerful option, making it a popular choice for those seeking a more robust sound. On the other hand, the Dynaco ST-70 offers a detailed and clear sound with a more natural and warm tone, making it an excellent choice for audiophiles who prioritize sound quality over power.

Recommendation:

If you are a budget-conscious audiophile looking for a powerful and versatile amplifier, the Dynaco 561356 400 is a great option. However, if you prioritize sound quality and are willing to pay a premium, the Dynaco ST-70 is an exceptional choice. Ultimately, the decision comes down to personal preferences and budget constraints.

Details:

Sometimes there are issues with the tier discount feature. For all parts buy 3, 15% off. Buy 4, 20% off your total purchase price. You are buying a parts in great working and cosmetic condition.

The photos are an important part of the. Look the pictures before buying.

part #: 561356 prices

  • $21.95-$99.00

specifications partsvintageaudio:

  • brand: Dynaco
  • mpn: 561356
  • type: Power Amplifier
  • unit type: Unit
  • compatible model: Dynaco Stereo
  • country of origin: United States
  • california prop 65 warning: No Chemicals

seller partsvintageaudio:

  • city: Waterford, Michigan
  • rating: 99.8%
  • # reviews: 14170

shipping partsvintageaudio:

  • class: Standard
  • type: Fixed
  • transit: 5-10 Days
  • service: USPS Ground Advantage
  • cost: $0.00
  • carrier: USPS

general partsvintageaudio:

  • Vintage Audio Video > Vintage Parts Accessories > Other Vintage A/V Parts Accs
  • condition: Used

returns partsvintageaudio:

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

offer partsvintageaudio:

  • options: Ship-to-home
  • started: January 31, 2026
  • quantity: 1
  • availability: In Stock
  • sold: 0

payments partsvintageaudio:

  • other
  • wallet: Apple-pay
  • credit card: Discover
type: power amplifier, unit type: unit, compatible model: dynaco stereo, country of origin: united states, california prop 65 warning: no chemicals,
category: electronics > vintage audio video > vintage parts accessories > vintage a/v parts accs, sku: 9633329641886772,
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2 offers $21.95–$99.00 USD
  • New. Offer #1 priced at $21.95 + $8.95 shipping estimate = $30.90* total. ). THESE OUTPUT TRANSISTORS FIT THE ST-400/410/416 SERIES AND ST-150 POWER AMP AS WELL AS MANY OTHER BI-POLAR POWER AMPLIFIERS.+$8.95 shipping
  • New. Offer #2 priced at $99.00 + $8.95 shipping estimate = $107.95* total. specifically designed for high power audio output and linear applications DYNACO OUTPUT TRANSISTOR SET.+$8.95 shipping

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