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Rebec A75II 24v 4-Channel Amplifier
130 Watt

A75II 24v

Technical Highlights

  • Power at 2 Ohm 4x130W, 4 Ohm 4x75W, bridged 240W.
  • Input impedance 22kOhm, input sensitivity 0.9-4.5V.
  • Frequency range 20-20,000Hz, damping factor >170, 2x25A fuses.
  • More technical details
€459,00
€459,00 €459,00
5% discount with prepayment
inkl. VAT , possibly plus shipping
Delivery
Apr 23, - Apr 28,
x Piece
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A75II 24v by Rebec

The A75II 24v is a 4-Channel Amplifier from Rebec in Class AB design. The RMS power is 4 x 75 W at 4 Ohm and 4 x 130 W at 2 Ohm, bridged at 4 Ohm (Ch 3+4) at 240 W. The operating voltage is 20–32 V, the input sensitivity is 0.9–4.5 V, and the input impedance is 22 kOhm. The frequency range extends from 20–20,000 Hz, with a high-pass filter from 40–350 Hz and a low-pass filter from 35–550 Hz available. A bass boost of 0 dB to +6 dB is integrated. The damping factor is >170, and the signal-to-noise ratio is >95 dB. There are 4 high-level inputs. The dimensions are 323 x 170 x 50 mm, and the weight is 2.43 kg, protected by 2 x 25 A fuses.

Features
  • 4-Channel Amplifier
  • Amplifier Class AB
  • Operating Voltage 20–32 V
  • High-Level Inputs 4 pieces
  • Bass Boost 0 dB to +6 dB
  • High-Pass Filter 40–350 Hz
  • Low-Pass Filter 35–550 Hz
  • Fuses 2 x 25 A
  • Dimensions 323 x 170 x 50 mm
  • Weight 2.43 kg
Technical Specifications
  • Power at 4 Ohm RMS: 4 x 75 W
  • Power at 2 Ohm RMS: 4 x 130 W
  • Bridged Power at 4 Ohm RMS (Ch 3+4): 240 W
  • Frequency Range: 20–20,000 Hz
  • Input Sensitivity: 0.9–4.5 V
  • Input Impedance: 22 kOhm
  • Signal-to-Noise Ratio: >95 dB
  • Damping Factor: >170

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Frequently Asked Questions about A75II 24v

What features define the Rebec A75II 24v Amplifier?

The Rebec A75II 24v is a compact 4-channel Amplifier with Class-AB technology, delivering 75W per channel and bridgeable to 240W. Its input sensitivity ranges from 0.9-4.5V and it operates with a supply voltage of 20-32V. A low signal-to-noise ratio of over 95dB enhances sound quality, while the device is protected from overvoltage by internal fuses. Frequency-wise, the A75II covers everything from 20Hz to 20KHz. Dimensions are 323x170x50mm, allowing for easy installation even in tight spaces.

What is the power output of the Rebec A75II 24v at different ohm values?

The Rebec A75II 24v offers different power ratings depending on impedance: At 2 ohms, it delivers 4x130W RMS, while at 4 ohms, it provides 4x75W RMS. In bridged mode, it outputs 240W RMS for channels 3 and 4 at 4 ohms. This flexibility supports both demanding and simple setups, making it ideal for versatile applications. The Amplifier's performance is complemented by a damping factor of over 170, which improves control over diaphragm movement.

What filtering options does the A75II 24v from Rebec offer?

The Rebec A75II 24v provides both high-pass and low-pass filters with finely adjustable frequencies. The high-pass filter operates in the range of 40-350Hz, while the low-pass filter spans from 35-550Hz. These adjustment options are crucial for optimizing sound to suit various speaker systems and environmental influences. Combined with a bass boost of 0 to +6dB, particularly precise sound reproduction is enabled, catering to individual listening preferences. This allows for optimal adjustment of bass, mids, and treble.

How does the signal-to-noise ratio affect sound quality in the A75II 24v?

The Rebec A75II 24v has a signal-to-noise ratio of over 95dB, ensuring excellent sound quality by effectively minimizing unwanted background noise. A high signal-to-noise ratio means that the ratio of useful signal to noise is favorable, making the amplifier particularly suitable for demanding audio applications. This difference is especially noticeable during loud playback or in environments with high noise levels, as the music playback remains clear and free of interference.

What operating voltage is required for the Rebec A75II 24v?

The Rebec A75II 24v is designed for an operating voltage of 20 to 32V. This voltage range allows for use in various vehicles with corresponding voltage requirements and promotes stable power delivery under different loads. The versatile voltage adjustment is particularly useful for users who want to integrate the amplifier into various applications or different types of vehicles. Thus, the amplifier is suitable not only for cars but also for mobile home applications or boats, for example.

What are the dimensions of the Rebec A75II 24v amplifier and how does that facilitate installation?

With dimensions of 323x170x50mm, the Rebec A75II 24v is extremely compact and can be easily installed in vehicles, even when space is limited. This size facilitates integration in console-adjacent areas or under the seat without obstructing cable management or air circulation. The installation also benefits from the lightweight design of the device, which, at just 2.43 kg, does not place high demands on mounting and securing mechanisms, simplifying the installation process.

What frequencies can the Rebec A75II 24v process?

The A75II 24v from Rebec supports a wide frequency range of 20 to 20,000 Hz, allowing it to cover the entire human hearing spectrum. This means that both deep bass and high tones are reproduced accurately. In conjunction with the adjustable high-pass and low-pass filters, the frequency bands can be precisely controlled, which is particularly useful when the amplifier needs to be tuned to specific speaker systems. This frequency adjustment further enhances the sound versatility.

What protection mechanisms are integrated into the A75II 24v from Rebec?

The Rebec A75II 24v features internal fuses that provide reliable overvoltage protection. This safety function ensures that the amplifier is effectively protected against voltage fluctuations and current overloads. With the 2x 25A fuses, it is ensured that the amplifier automatically shuts down when critical values are reached, which extends the lifespan of the device and prevents damage to connected systems. Such protection is especially important in mobile use.

How is the installation of the Rebec A75II 24v in the vehicle?

The installation of the Rebec A75II 24v is relatively straightforward even in tight vehicle environments due to its compact dimensions of 323x170x50mm. When mounting, the amplifier should be placed in a way that does not obstruct air circulation to avoid overheating. Thanks to the high-level inputs, the amplifier is easily compatible with existing factory speaker systems, simplifying integration. You should also ensure that the wiring is done according to the power specifications to avoid short circuits.

What input impedance does the Rebec A75II 24v offer and why is it relevant?

The Rebec A75II 24v amplifier comes with an input impedance of 22kOhm. This high input impedance is crucial for improving compatibility with different signal sources by minimizing the influence of the source on the signal. Especially with long cable runs or lower voltage sources, a high impedance positively affects sound quality. This allows for lossless signal transmission and reduces distortion during music playback, which audiophile users appreciate.

Manufacturer information / responsible person

Elofssons Försäljnings AB
Björn Elofsson
Gruvgatan 31A
421 30 Västra Frölunda / Gothenburg
Sweden

Contact: support@dbakuten.se

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