MB Quart MBQ-RA1-300.1 | 300 watt Reference Amplifier

Introduction

The Soundstream REF2.370 300W Reference Series 2-Channel Power Amplifier is a high-performance audio component designed to deliver exceptional sound quality and power to speakers and subs. As part of Soundstream’s new line of Reference amplifiers, this model boasts a range of innovative features, including a RUBI topology power supply, STACT system, and proprietary bass equalization. With its ability to supply plenty of power and solve potential interference problems, this amplifier is ideal for cars rich in electronics. In this article, we will delve into the technical specifications, design, and build of the Soundstream REF2.370, as well as its installation and setup, and conclude with an overview of its impressive 300-watt performance.

Precision Audio Performance with MB Quart's 300W Amplifier

300 Watt RMS POWER @ 1 OHM

Specifications:

• Colour: Black

• Warranty: 2 Years

• Compatible Vehicles: Universal

• Amp Class: Class Q1 Mono (Class D)

• Amp Total Channels: 1

• Amp Max Power (watts): 300

• Amp Power @ 1 Ohm (ch x watts): –

• Amp Power @ 2 Ohm (ch x watts): 1 x 325

• Amp Power @ 4 Ohm (ch x watts): 1 x 175

• Amp Mono Bridged @ 4 Ohms (ch x watts): –

• Amp Crossover: Electronic

• Amp Variable High Pass Crossover 12dB per Octave: Variable 50Hz-250Hz

• Amp Speaker Terminal Wire Gauge: 12 AWG

• Amp Fusing: 40A External

• Low Noise Preamplifier Circuit: Q-Stasis Pre Amplifier Stage: Custom-designed electrolytic capacitors have been developed to enhance performance by allowing the maximum low voltage signal from the source unit to come into the amplifier circuit with minimal distortion.

• RCA Inputs: Nickel-Plated: High temperature impact resistant with hex screw terminals that allow for secure connections and is erosion resistant.

• High Level Inputs: See Auto-Sense Feature.

• Operation Mode: Mono only

• Crossover Type: Variable electronic crossovers allow for complete control of the sound.

• Electronic Equalizer: Control of amplifier output with on-board electronic crossover to tailor specific frequencies to speakers and subwoofers. Check specifications for specific frequencies for this amplifier.

• Class / Topology: Class Q1 Mono (Class D): MB Quart’s Class Q1 offers the efficiency of today’s D-Class with increased engineering to focus on sound quality from the power supply through the output devices, the FLUID-FETS.

• Output Device Technology: FLUID-FETS: MB Quart output devices, FLUID-FETS are painstakingly selected for their ability to efficiently produce power and mimic the sound quality of the highest end home amplifiers.

• Heat Sink: Aluminum: Quickly dissipates heat to allow the amplifier to run lower impedance for longer duration.

• Power Supply: Rugged MOSFET Pulse Width Modulation power supply: Allows amplifier to produce efficient power without taxing the vehicle electrical system.

• Output Connections: Heavy duty connections allow for secure electrical signal to pass into wiring and resist erosion which will add longevity to the amplifier.

• Connection Type; Secure connection for all power, ground and speaker connections.

• LED System Protection Circuitry Diagnostics: –

• Bass Remote Included: Included: Wired Bass Remote allows adjustments to bass frequencies to be made from the control mounted anywhere in the vehicle.

• Auto Turn-On: DC SIGNAL SENSE: The DC SIGNAL SENSE switch will allow the amp to turn on when a signal is received on the RCA inputs, so an amplifier remote turn on wire is not needed to turn on the amplifier. This feature can also be turned off.

• Weight: 5.5 lbs

SKU: MBQ-RA1.300.1

Technical Specifications

The Soundstream REF2.370 features a range of impressive technical specifications, including a declared power of 300 watts per channel at 4 ohms, with a total harmonic distortion of less than 0.03% THD at rated power. The amplifier’s frequency response is 20Hz to 20kHz ±0.5dB, with a damping factor of 100. The input impedance is 47k ohms, and the gain is 32dB for RCA inputs and 38dB for balanced inputs. The amplifier’s power supply is capable of delivering rapid power delivery, with a switchable output stage that allows for flexible configuration. The Soundstream REF2.370 also features a proprietary Hawkins Bass Control bass correction circuit, which provides a distinctive feature for bass boost and equalization. With its high-quality components and proprietary Soundstream technologies, this amplifier is designed to provide high-quality sound and solve potential interference problems.

Design and Build

The Soundstream REF2.370 is designed with a focus on extreme heat dissipation, featuring a robust build and high-quality components. The amplifier’s chassis is constructed with a durable material, and the internal components are carefully selected to ensure complete noise immunity and a balanced signal. The RUBI topology power supply and STACT system work together to reduce the load on the power supply by 50%, allowing for efficient and reliable operation. The amplifier’s output stage is designed to deliver impressive power and sound quality, with a triple Darlington audio output configuration that provides a high current output and low distortion. The Soundstream REF2.370 also features a range of innovative technologies, including a bias input protection circuit and a wide tuning range for the built-in HPF/LPF/FINCH crossover.

Installation and Setup

Installing and setting up the Soundstream REF2.370 is a straightforward process, thanks to its intuitive design and clear documentation. The amplifier features a range of input options, including balanced inputs and RCA inputs, allowing for flexible configuration and connection to a variety of audio sources. The amplifier’s output stage can be configured to drive a range of speaker loads, from 2 ohms to 8 ohms, making it suitable for a wide range of applications. The Soundstream REF2.370 also features a range of innovative technologies, including a remote control and a bass remote control, allowing for convenient adjustment of the amplifier’s settings and parameters.