
( Brand: Quad ), ( Type: Power Amplifier ), ( Country/region Of Manufacture: British Indian Ocean Territory )
The 405-2 Quad Power Amplifier, model number 405, is a vintage piece of audio equipment that has been expertly serviced to restore it to its original glory. This amplifier is a quad-channel device, capable of driving four separate speaker channels simultaneously, making it an ideal choice for those who prefer a multi-speaker audio setup.
The 405-2 Quad Power Amplifier is a class AB design, which means it offers a good balance between power and efficiency. Each channel can deliver up to 25 watts of continuous power, making it suitable for a wide range of applications, from home stereo systems to professional audio setups.
The amplifier features four independent channels, each with its own input and output connectors. The input connectors are of the RCA type, while the output connectors are speaker terminals. The amplifier also has a switch for selecting between balanced and unbalanced operation for each channel, giving you the flexibility to match it with a variety of sources.
The amplifier's chassis is made of heavy-gauge steel, which not only provides excellent mechanical stability but also acts as a shield against electromagnetic interference. The front panel is adorned with a row of large, illuminated VU meters, which provide real-time visual feedback on the output level of each channel.
The 405-2 Quad Power Amplifier has been serviced to ensure it operates at its best. This includes replacing any failed components, cleaning the circuit boards, and testing each channel to ensure they are working correctly. The amplifier is also thoroughly tested to ensure it meets or exceeds its original specifications.
In conclusion, the 405-2 Quad Power Amplifier is a vintage piece of audio equipment that has been expertly serviced to restore it to its original condition. It offers four independent channels, each capable of delivering up to 25 watts of continuous power, making it a versatile and powerful addition to any audio setup. Its heavy-gauge steel chassis and illuminated VU meters add to its aesthetic appeal, making it a fine example of vintage audio technology.
Pros of buying a 405-2 quad power amplifier (manually serviced 405):1. Historical Significance: The 405-2 is a classic and highly respected amplifier, beloved by audiophiles for its sound quality. It's a piece of audio history and can add a touch of vintage charm to any home audio setup.
2. Powerful Sound: With its four independent channels, each capable of delivering 25 watts, the 405-2 has the power to drive a wide range of speakers. This can be particularly beneficial in a multi-speaker setup.
3. Warm and Rich Sound: The 405-2 is known for its warm, rich sound. It can deliver a full, balanced sound that many modern amplifiers struggle to achieve.
4. Value for Money: Given its historical significance and the quality of its sound, the 405-2 can often be a good value for money. Manually serviced models can help ensure that the amplifier is in good working order.
Cons of buying a 405-2 quad power amplifier (manually serviced 405):1. Maintenance and Repair Costs: Older amplifiers like the 405-2 can be more prone to faults and require more maintenance and repair work than newer models. This can add to the overall cost of ownership.
2. Compatibility Issues: The 405-2 may not be compatible with all modern audio equipment. It may require specialized cables or adapters to work with newer devices.
3. Limited Features: Compared to modern amplifiers, the 405-2 has a limited set of features. It may not have features like Bluetooth connectivity, automatic gain control, or digital signal processing.
4. Power Consumption: Older amplifiers like the 405-2 can consume more power than modern, more efficient models. This can lead to higher energy bills and may not be eco-friendly.
Conclusion:Buying a 405-2 quad power amplifier (manually serviced 405) can be a great choice for those who value vintage audio equipment and want to experience the warm, rich sound that these classic amplifiers are known for. However, it's important to consider the maintenance and repair costs, compatibility issues, limited features, and power consumption before making a purchase. If you're willing to put in the effort to maintain the amplifier and are happy with its classic sound, a 405-2 can be a rewarding addition to your audio setup.
Recommendation:If you're interested in buying a 405-2 quad power amplifier, I would recommend doing your research and finding a reliable source for a manually serviced model. Make sure to test the amplifier thoroughly before making a purchase and be prepared for any potential maintenance and repair costs. If you're unsure, it may be worth consulting with an audio expert or doing some research to determine if the 405-2 is the right amplifier for your needs.
05 input sensitivity. The Quad electrostatic loudspeaker can be used safely with power limiter in. Specifications power output: 100 watts per channel into 8 stereo frequency response: 20hz to 20 khz total harmonic distortion. A combination of mouldings and extrusions is used to produce unit which strong pleasing both the eye touch.
Not all loudspeakers can safely accept the full output power of Quad 405, and amplifier is provided with a limiter which fitted internally for use in such cases. The amplifier can be used with 33 control unit or similar high quality pre-amplifier.
The external design continues Quad tradition of practical simplicity which has won prizes and worldwide acclaim on previous model's. 5 signal to noise ratio: 96 db speaker load impedance: 4 16 dimensions: 115 x 340.