3. Amplifier for beginners
  5. SA500

SA500

SA500

Technical Highlights

  • 500 Watts RMS power at 1 Ω, damping factor 100, THD 1.0%.
  • Frequency response 30–20,000 Hz, subsonic filter 20–80 Hz, bass boost 12 dB.
  • Max. current draw 50 A, dimensions 121 × 81 × 43 mm.
  • More technical details
€139.00
€139.00 €139.00
2% discount with credit card

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ProductSA500

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DD Audio-SA500-1-Kanal Verstärker-masori-kaufen
€139.00
€139.00 €139.00

The DD Audio SA500 is a 1-Channel Amplifier that stands out due to its compact design and powerful 500 Watts RMS at 1 Ω, making it ideal for use in modern vehicles with limited installation space. The amplifier is excellent for Subwoofers in everyday or SQ-oriented setups and offers variable subsonic and low-pass filters as well as integrated high-level inputs for seamless integration into existing audio systems. With its dimensions of 121 mm x 81 mm x 43 mm, it fits optimally even in minimal space, while the high-quality construction ensures reliable and strong bass.

Features

  • Compact design for easy installation under seats or in side panels
  • 500 Watts RMS power at 1 Ω for powerful bass
  • Variable subsonic and low-pass filters for optimal tuning
  • Integrated high-level inputs for easy connection to factory radios
  • With bass remote for flexible volume adjustment from the driver's seat

Technical Specifications

  • Channels 1
  • Operating voltage 9–16 V
  • RMS power @ 4 Ω 200 W
  • RMS power @ 2 Ω 325 W
  • RMS power @ 1 Ω 500 W
  • Max. current draw 50 A
  • Damping factor 100
  • THD 1.0 %
  • Frequency response 30–20,000 Hz
  • Subsonic filter 20–80 Hz
  • Low-pass filter 40–20,000 Hz
  • Bass boost 12 dB
  • Power connection up to 10 mm²
  • Speaker connection up to 10 mm²
  • Dimensions (mm) 121 × 81 × 43
  • High-level to RCA adapter included
  • Remote control cable bass controller included

Frequently Asked Questions about SA500

What RMS power does the DD Audio SA500 offer at different impedances?

This compact mono amplifier delivers a stable output power of 200 watts RMS at 4 Ω, which provides a solid foundation for targeted bass in many car audio systems. Once the speaker impedance drops to 2 Ω, the potential increases to 325 watts RMS, giving subwoofers significantly more push. At a load of 1 Ω, a full 500 watts RMS is available, which is ideal for powerful low-frequency reproduction in relatively small enclosures. The operating voltage range of 9 to 16 volts allows for flexible applications, and thanks to the integrated bass boost of up to 12 dB, further sound optimizations are possible. This enables both moderate and demanding bass configurations. The compact design also facilitates discreet integration without compromising power output.

How does the variable subsonic filter work, and what influence does the low-pass control have on the bass range?

In the DD Audio SA500, the freely adjustable subsonic filter serves to limit unwanted deep bass components below 20 Hz to 80 Hz, protecting the subwoofer and avoiding unnecessary cone excursions. With a lower set value, the deep frequencies are more precisely focused on the audible range, which is effective for level-intensive music styles. At the same time, the low-pass control from 40 Hz to 20 kHz allows the frequency response in the low-frequency range to be adapted to different speaker configurations. These adjustment options allow for precise fine-tuning in everyday or SQ audio applications. Especially with subwoofer-heavy tracks, every necessary bass range can be clearly defined. Fine adjustment prevents resonance-related imprecise reproduction.

Does the DD Audio SA500 have high-level inputs, and how does this facilitate connection to factory radios?

This 1-channel Amplifier features integrated high-level inputs to allow for easy connection to existing factory radios in the vehicle without adding extra adapters. By directly integrating the high-level signals, the audio signal can be processed with minimal loss, ensuring precise bass reproduction across various signal sources. The internal signal processing handles voltages up to a certain limit, so neither sound nor dynamics are compromised. Additionally, installing separate converters prevents cable clutter and offers more flexibility in routing power and signal cables. This makes the Amplifier suitable for a wide range of car Hi-Fi setups and even allows for upgrading modern vehicles with factory infotainment systems without complicated modifications. This also enables stable output power without quality loss in the low-frequency range.

What advantages does the compact design of a 1-channel Amplifier offer for installation under the seat, and how does it affect heat development?

The DD Audio SA500, with its dimensions of only 121 mm x 81 mm x 43 mm, has an extremely space-saving form, allowing the housing to be discreetly mounted under a car seat. This reduced volume optimally utilizes the available storage space without sacrificing powerful bass. The integrated cooling structure ensures sufficient air circulation in typical installation positions, so even at 500 watts RMS, thermal issues are minimal. This design is particularly convincing in tight vehicle cabins where larger amplifiers do not fit. Additionally, the compact design allows for easier wiring with up to 10 mm² cross-section for power and speaker cables.

How can the bass boost function and the included remote control cable bass controller be used with the DD Audio SA500?

The bass boost allows for a targeted increase of up to 12 dB, which precisely affects low frequencies to give the Subwoofer more sound volume. This function is particularly useful when the acoustic setup needs a bit more presence in the deep bass range without simultaneously raising the entire frequency spectrum uncontrollably. For this purpose, the included remote control is connected to the Amplifier via the remote control cable. This allows the driver to adjust the intensity of the bass boost from the driver's position, which proves to be extremely convenient in everyday use. Especially with changing music styles, one can precisely regulate the pressure in the lower frequency segment as needed.

What special features does the power supply offer in the range of 9 to 16 volts, and how does the Amplifier stabilize itself with fluctuating onboard voltage?

The DD Audio SA500 is designed for a wide input voltage window, allowing it to deliver consistent power from 9 to 16 volts. Especially in vehicles with start-stop systems or older alternators, short voltage drops are common, which can lead to power losses in some amplifiers. Here, an internal Power Supply stabilizes the supply to maintain a consistent output level and avoid distortion in the low-frequency range. The maximum current draw of 50 A under full load also allows for the use of an adequate power supply without long-term power losses. Thanks to the internal regulation concept, the Mono Amp can reliably deliver power in various configurations and remains responsive during operation.

How well does the DD Audio SA500 harmonize with Subwoofers in SQ-oriented setups, and what role does the damping factor play in this?

The integrated damping factor of 100 significantly contributes to precisely controlling the Subwoofer, especially when aiming for a precise, musical bass tone. A high damping factor acts as a strong restoring force on the diaphragm movements and ensures defined impulse fidelity. In SQ-oriented systems, where fine sound details are to be highlighted, clear deep bass can be crucial. Thanks to the adjustable low-pass and subsonic filters, the frequency ranges can be optimally matched to the respective speakers, achieving a homogeneous sound image in conjunction with other channels. With the sensible design of the filters, the Subwoofer gains precision without dominating the entire frequency range. This results in clean bass reproduction.

How should the wiring (power and speaker connection) be done, and what cross-sections are recommended?

When connecting the DD Audio SA500, up to 10 mm² is supported for power and speaker cables, ensuring sufficient conductor cross-section for constant voltage and signal transmission. This is particularly essential at higher currents to avoid power losses and excessive heat development in the cables. During installation, the amplifier should be connected directly to the vehicle battery via a suitable Fuse to ensure safe operation. For the ground wire, a as short as possible path to the chassis is recommended to minimize unnecessary resistance. Additionally, it is important to ensure that all contact points are cleanly connected so that the full power of the amp can be unleashed.

How can the DD Audio SA500 be used in a daily system with limited installation space, and what role does the Remote Control play in this?

Due to its compact dimensions of 121 mm x 81 mm x 43 mm, this mono amplifier can be easily used in small vehicles or tight installation spaces. Whether under the seat or in the trunk corner, the compact format offers versatile mounting options without restricting the interior space. The included cable remote allows for immediate volume adjustment from the driver's perspective, enabling you to choose more bass energy or a subtler playback depending on the music style. This keeps the system practical for everyday use, as both quiet drives and energetic bass sessions can be comfortably controlled. Additionally, the variable subsonic filter ensures that the frequency range can be adjusted to personal preferences or subwoofer specifications. Reliable operation is thus achievable with any music genre.

Can this 1-channel amplifier also be used at higher frequency ranges, and what should be considered regarding the frequency response from 30 to 20,000 Hz?

The DD Audio SA500 covers a frequency range of 30 to 20,000 Hz, including mid-range tones, but is primarily used in the low-frequency segment. Thanks to the variable low-pass filter, the upper crossover frequency can be flexibly adjusted to set the transition to midrange drivers or full-range speakers. If you still want to utilize higher frequency ranges, it is advisable to precisely tune the filter settings, as full bandwidth will also amplify mid and high signals. The amplifier maintains a performance design optimized for bass applications, which is why the lower frequency range particularly benefits from the RMS power. Those needing flexible crossovers can achieve a customized tuning. Thus, a balanced sound image is always preserved in the high-frequency range.

Manufacturer information/responsible person

Audio Import Group
Pekka Kinnunen
Palkkitie 10
84100 Ylivieska
Finland

Contact: info@audioimport.fi

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