PW Audio Quickstep Balanced Amplifier for Headphone
Product Overview
The PW Audio Quickstep Balanced Amplifier is designed specifically for a high-quality audio experience. It operates within a power supply voltage range of 6V to 15V DC, with a static current consumption of approximately 30 mA, ensuring stable performance. The amplifier features a discrete volume control with 1.5 dB steps, offering 31 gain settings, allowing users to quickly adjust to their desired volume.
In terms of gain options, the Quickstep provides a variety of choices, including low gain, high gain, and high-resolution analog mode, catering to different headphone requirements, with a maximum gain of +12 dB. Its frequency range is also extensive, covering a wide array of audio characteristics to ensure clear and pleasing playback.
Design and Features
The amplifier is equipped with fully balanced inputs and outputs, along with multiple input impedance options to accommodate various headphones; its output impedance is less than 1 Ω, further enhancing sound quality. For power supply, the Quickstep supports the use of a 9V battery or an external regulated power source, and it includes an automatic voltage doubling feature to boost driving capability, along with a built-in LC filter to eliminate noise.
Internally, the amplifier boasts a buffering capacity of 4500 µF, effectively reducing battery impedance and improving audio performance. In terms of amplification design, it utilizes four single OPA209 amplifiers to achieve optimal sound quality, focusing on the integrity of the audio signal path with SMD metal resistors and high-quality COG/NPO capacitors.
The exterior is made entirely of aluminum, offering both durability and a sleek appearance.
The Story of the PW Audio Quickstep Balanced Amplifier
About ten years ago, in the world of portable audio enthusiasts, the iMod defined the era, and headphone amplifiers became essential devices for audiophiles. At that time, enthusiasts were divided into different camps, including iMod, Kenwood, and iPod, with fans eager to enhance sound quality through amplification. Among them, Meier Audio's CORDA QUICKSTEP captivated countless headphone lovers with its silky-smooth vocal performance and powerful dynamic range.
As time progressed, we entered the era of the 4.4mm balanced connection. PWAudio founder Peter Wong, a devoted audiophile, was determined to bring back the classic sound of the past by seeking to translate the excellent features of the CORDA QUICKSTEP into a balanced version. With the support of Meier Audio's Dr. Jan Meier, PWAudio began this innovative development journey and secured production authorization.
In designing the new version, PWAudio took into account the diverse needs of modern headphones, adding four gain settings to enhance audio flexibility and adaptability. After a lengthy process of design and testing, PWAudio proudly launched this balanced amplifier in the fourth quarter of 2024.
Specifications
Power Supply Voltage
6 (9)..15 Volts DC
Static Current
30 mA
Volume Control
Discrete, typical step of 1.5 dB (31 steps)
Maximum Gain
Low Gain: -8.2 dB / High Gain: +2.9 dB / Hi-Res Mode: +4.4 dB / Headphone Mode: +12 dB
Single 9V battery or external regulated power supply (up to 15V)
Noisefiltering
LC filter for noise elimination
Total Buffer Capacity
4500 µF
Amplifier Design
Four individual OPA209 amplifiers (no dual or quad operational amplifiers)
Internal Components
SMD metal resistors and high-quality COG/NPO capacitors
Enclosure Material
Aluminum
This product is 100% brand NEW and sealed with the original manufacturer's packaging. It comes with a full warranty provided by the authorized dealer and distributor. For return / refund policy, pls refer to return / refund page.
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