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  5. RS-SD450.4D
Reiss Audio RS-SD450.4D 4-Channel Amplifier
SKU:  RS-SD450.4D
675 Watt

RS-SD450.4D

SKU:  RS-SD450.4D

Technical Highlights

  • Power: 675 W at 2 Ohm, 450 W at 4 Ohm, 1350 W bridged.
  • Impedance: 2 Ohm and 4 Ohm, THD <0.3 %, S/N ratio >90 dB.
  • Frequency: 20 Hz – 20 kHz, Gain 0.2 – 10 V, Bass boost up to 18 dB.
  • More technical details
€359,00
€359,00 €359,00
5% discount with credit card
inkl. VAT , possibly plus shipping
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Jun 9, - Jun 14,
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RS-SD450.4D by Reiss Audio

The RS-SD450.4D from Reiss Audio is a 4-Channel Amplifier with a Full Range Class-D topology. The RMS power is 675 watts per channel at 2 ohms and 450 watts per channel at 4 ohms. In bridged mode at 4 ohms, a power of 1350 watts is achieved across two channels. The device has a total harmonic distortion of less than 0.3 percent and a signal-to-noise ratio of over 90 dB. The frequency range extends from 20 Hz to 20 kHz. For individual adjustment, a gain range of 0.2 to 10 V and a bass boost of 0 to 18 dB are available.

Features
  • 4-Channel Amplifier
  • Full Range Class-D topology
  • RMS power at 2 ohms: 675 watts per channel
  • RMS power at 4 ohms: 450 watts per channel
  • Bridged power at 4 ohms: 1350 watts
  • Bass boost: 0 – 18 dB
  • Gain range: 0.2 – 10 V
Technical Specifications
  • Frequency range: 20 Hz – 20 kHz
  • Total harmonic distortion (THD): <0.3 %
  • S/N ratio: >90 dB
  • Cross-over slope (Octaveslope): 12 dB

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Reiss Audio RS-SD450.4D Datasheet

Open datasheet

Frequently Asked Questions about RS-SD450.4D

What is the RMS power of the RS-SD450.4D at 2 Ohms?

The RS-SD450.4D from Reiss Audio delivers an RMS power of 675 Watts per channel at 2 Ohms. This high power output allows for the effective operation of even power-hungry speaker systems without compromising audio quality. Ideal for installations that rely on power and precision. By utilizing Class-D topology, the unit remains efficient, generates less heat, and takes up less space. Especially if you enjoy listening to music loudly or operate a high-end audio system, the power efficiency at 2 Ohms of the RS-SD450.4D is crucial.

What is the RMS power of the RS-SD450.4D at 4 Ohms?

At an impedance of 4 Ohms, the RS-SD450.4D delivers an RMS power of 450 Watts per channel. This is perfect for common speaker systems that are typically operated at 4 Ohms. This setting provides a good balance between power and efficiency. The Class-D topology of the amplifier ensures that audio distortion remains low, which is further confirmed by a THD of under 0.3%. If you want to set up your car with clear and precise audio performance at 4 Ohms, this amplifier is particularly well-suited.

What does the bridged power of the RS-SD450.4D at 4 Ohms mean?

The RS-SD450.4D offers an impressive bridged power of 1350 Watts at 4 Ohms. This is ideal if you want to combine two channels to provide additional power for a Subwoofer or a powerful speaker system. Bridging the channels effectively doubles the power, leading to a more penetrating and fuller audio experience. Keep in mind the electrical load due to the high power to ensure the long-term stability and efficiency of the amplifier as well as your other components.

What is the S/N ratio of the RS-SD450.4D?

The S/N ratio of the RS-SD450.4D is over 90 dB, referenced to 1 watt at 4 ohms. A higher signal-to-noise ratio means that the signal is louder and clearer compared to the noise, providing an almost noise-free experience during playback. Especially with high-quality audio recordings that exhibit fine details, a high S/N ratio plays a central role in fully exploiting the acoustic potential. This metric illustrates the precision and purity of the audio signal that can be achieved by this Amplifier.

What frequencies can the RS-SD450.4D process?

The frequency range of the RS-SD450.4D extends from 20 Hz to 20 kHz. This wide range allows for covering low bass to high tones. The Amplifier is thus capable of accurately reproducing the entire human hearing spectrum, which is particularly important for music fans who want to enjoy all the nuanced aspects of a piece of music. Whether it's booming bass or clear highs, the RS-SD450.4D offers high-quality audio playback through its wide-range frequency coverage, making it suitable for any genre of music.

What role does the gain range play in the RS-SD450.4D?

The gain range of the RS-SD450.4D is between 0.2 and 10 volts, allowing for flexible input control. With this setting, you can adjust the sensitivity of the Amplifier to the output voltage of your audio source to achieve optimal audio quality. This range is crucial, especially for different input signals, such as when using various audio sources or formats. A correctly set gain helps reduce distortion and utilize the optimal dynamic range of the audio system.

What advantages does the 12 dB Octaveslope of the RS-SD450.4D offer?

The 12 dB Octaveslope in the RS-SD450.4D means that the frequencies above or below the set crossover point roll off gently. This ensures a harmonious transition function between the different frequency ranges of your speakers. This is particularly important in multi-way systems to avoid frequency overlaps and phase issues. As a result, a clean sound process is achieved, creating a balanced listening experience where all frequency ranges can be heard clearly and distinctly. This feature significantly optimizes audio integration.

How does the bass boost affect the audio output of the RS-SD450.4D?

The RS-SD450.4D offers a bass boost from 0 to 18 dB, allowing you to adjust the low-frequency sounds to your personal preferences. Especially for music genres that benefit from strong bass tones, the adjustable boost provides the opportunity to highlight these frequency ranges. This is useful for integrating Subwoofers more effectively or adding more depth to the overall sound, particularly in vehicle-specific environments where bass often gets lost. With this flexibility, you can customize the listening experience to match your taste.

Can I install the RS-SD450.4D in any car?

The dimensions of the RS-SD450.4D are not specified, but due to its power-to-weight ratio and Class-D topology, the amplifier can typically be installed in most vehicles. However, care should be taken during installation to ensure adequate ventilation to avoid overheating. Installation locations may vary, but the amplifier is most commonly found in the trunk or under the seats. It is important to securely mount and wire the amplifier to avoid both interference and mechanical damage.

How low is the total harmonic distortion (THD) of the RS-SD450.4D?

The total harmonic distortion (THD) of the RS-SD450.4D is below 0.3%. A low THD value indicates that the amplifier reproduces the audio signal almost unchanged and thus very cleanly, which is essential for precise music playback. The low distortion means that even at higher volumes, there is no dominance of false tones or interference, ensuring realistic sound reproduction. This feature is particularly valuable for music enthusiasts who appreciate sound purity and prioritize the highest audio quality.

Manufacturer information / responsible person

Elofssons Försäljnings AB
Björn Elofsson
Gruvgatan 31A
421 30 Västra Frölunda / Göteborg
Schweden

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