PW Audio Hi-Res Quickstep Balanced Amplifier Support 4.4mm Plug 9V Battery for Headphone
PW Audio Hi-Res Quickstep Balanced Amplifier Support 4.4mm Plug 9V Battery for Headphone
Brand: PW Audio
Couldn't load pickup availability
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 |
| Frequency Range | Low Gain: DC..41 kHz / High Gain: 39 kHz / Hi-Res Mode: 128 kHz / Headphone Mode: 56 kHz |
| Fully Balanced Input/Output | Yes |
| Input Impedance | Low Gain: 27 kOhm / High Gain: 57 kOhm / Hi-Res Mode: 26 kOhm / Headphone Mode: 33 kOhm |
| Output Impedance | <10 Ohm |
| Power Supply Method | 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 |
FAQs
Frequently Asked Questions
(1) Do you offer FREE shipping worldwide?
Yes! We offer FREE shipping via Airmail Service to major countries including the US, UK, Canada, EU, Australia, New Zealand, Asia, Hong Kong, and Russia. All parcels are dispatched from Hong Kong. Please note that due to the impact of COVID-19, some countries may not be eligible for normal delivery. We are actively monitoring the logistics situation and will expand our delivery destinations as conditions improve.
(2) How long does it take to ship to me?
Once we receive your order and payment confirmation, we will ship your items within the next 48 working hours. Our warehouse in Hong Kong is efficient in processing orders. Here are our estimated delivery times for different regions:
- US / UK: 5 to 9 working days
- EU / Australia / Canada: 7 to 14 working days
- Japan / South Korea: 5 to 9 working days
- South East Asia: 7 to 14 working days
- Hong Kong / Taiwan / Macau: 3 to 5 working days
- Rest of the world (including Russia): 14 to 21 working days
Please note that during the Christmas season, delays may occur due to increased mail volume. For any further questions, please Contact Us.
(3) Which logistic service provider will you use?
We utilize the fastest and most reliable logistic service providers to deliver your parcels, including Hong Kong Post, USPS, DHL, FedEx, UPS, and Aramex.
(4) Do you provide tracking codes for my package?
Yes, our standard shipping method includes a tracking number. You will receive an automatic email with your tracking code after your shipment is dispatched. This code is essential for locating your package through your local post office.
(5) Can I pay in my local currency using PayPal or a credit card?
All our products are priced in US dollars. However, if you use a credit card (VISA, MasterCard, AE, Apple Pay, Google Pay) through Shopify Payments, you can choose to pay in Australian Dollars, British Pounds, Canadian Dollars, Euros, or Hong Kong Dollars as displayed on the product page.
If you opt to pay via PayPal, you can select from a list of common currencies, including Australian, Canadian, Euros, Japanese Yen, and British Pounds. Please note that PayPal's exchange rate may be approximately 2.5% higher than the normal rate. You can also choose to pay in US dollars and let your credit card convert the amount to your local currency at the current rate.
(6) What should I do if PayPal refuses my payment?
PayPal has a high-security standard, and any discrepancies with your billing address may prevent the transaction from going through. Please ensure that your address details are accurate when using PayPal. If you encounter any payment difficulties, please Contact Us for assistance.
(7) What should I do if Shopify Payments does not accept my payment?
Many customers experience issues with the Verified by Visa authentication, which is crucial for bank verification. If you have any payment difficulties, please Contact Us for support.
(8) Do I have to pay sales tax?
No, you do not have to pay any sales tax. Hong Kong does not impose any tax on sales purchases.
(9) Will I have to pay customs duty?
While we cannot be responsible for customs duties imposed by your country, we will do our best to help minimize the risk. However, there is still a possibility that customs duties may apply. Based on our 15 years of experience shipping worldwide, customers in the US, Australia, and New Zealand typically do not face customs tax issues.
(10) Do I have a warranty on the products?
All products we sell are 100% brand new, genuine, and authentic, shipped in their original packaging. Unless otherwise stated, warranties are usually effective only in Hong Kong. To utilize the warranty, you will need to send the product back to us, and we will facilitate repairs through authorized professionals. Please retain the original packaging for warranty purposes, as many distributors require the warranty sticker on the box to honor warranty claims.
(11) What do the voltage ratings (100V, 110V, 240V) mean for me?
Most electronic products today are designed with universal voltages (100V-240V) and can operate in any country. However, some products may have a limited voltage range. Please check the voltage specifications on the product page. Generally, 100V-110V is suitable for the US, Canada, and Japan, while 220V-240V works in Europe, the UK, Australia, New Zealand, and more.
(12) Will the plug work with my country's sockets?
We provide a complimentary travel plug adapter for your country. However, we currently offer only four types of adapters:
- UK type
- US type
- European type
- Australian type
If we cannot identify the appropriate type for your country, we may not be able to provide a suitable plug adapter. Please Contact Us to let us know your requirements.
(13) The price seems very low; are the products genuine?
Rest assured, we only sell new and genuine products in their original packaging at AccessoryJack. We maintain competitive pricing through efficient cost structures and streamlined operations, not by compromising on quality. Customer satisfaction is our top priority.
For further questions, please contact us at Service@AccessoryJack.com.