Cadence 1500 Watts RMS 1-Ohm Class A/B Monoblock Amplifier QRS1.1500GH

• HIGH POWER BASS OUTPUT: Delivers 1500 watts RMS at 1 ohm for powerful, clean, and controlled low-frequency performance in serious car audio systems
• CLASS A/B MONOBLOCK DESIGN: Engineered for warm sound quality and strong subwoofer control with dedicated single-channel amplification
• FULL AUDIO TUNING CONTROL: Features adjustable low-pass, high-pass, subsonic filter, bass boost, and phase control for precise system tuning
• BUILT FOR RELIABILITY: Equipped with thermal, overload, short circuit, and DC fault protection alongside advanced microprocessor-controlled cooling
• PREMIUM INSTALLATION READY: Includes remote bass level control, RCA inputs, and a brushed aluminum heatsink for clean integration and efficient heat dissipation

Cadence 1500 Watts RMS 1-Ohm Class A/B Monoblock Amplifier QRS1.1500GH

This Listing Includes:

• (1) Cadence Amplifier QRS1.1500GH

Bring serious low-end authority to your system with the Cadence Quartz Core QRS1.1500GH. This Class A/B monoblock amplifier delivers up to 1500 watts RMS at 1 ohm, giving your subwoofer setup the power it needs for deep, controlled bass.

Built with a black brushed aluminum alloy heatsink, advanced heat dissipation, and microprocessor-controlled protection, this amp is made for strong daily performance and clean installation. With adjustable LPF, HPF, subsonic filter, bass boost, phase control, and RCA inputs, the QRS1.1500GH gives installers the tuning control needed to dial in serious bass response.

Features

• 1500W RMS @ 1 Ohm


• Class A/B Monoblock Design


• Variable LPF / HPF / Subsonic Filters


• Adjustable Bass Boost & Phase Control


• Remote Bass Knob Included


• RCA Low-Level Inputs


• Thermal & Short Circuit Protection


• Brushed Aluminum Heatsink


• Microprocessor Controlled Cooling


• Built for High-Power Subwoofer Systems

Specifications:

• Amplifier Type: Class A/B


• Channel Configuration: Monoblock


• RMS Power @ 4 Ohms: 660 W x 1


• RMS Power @ 2 Ohms: 1000 W x 1


• RMS Power @ 1 Ohm: 1500 W x 1


• Frequency Response: 10 Hz - 250 Hz


• Input Sensitivity: 100 mV - 6 V


• Total Harmonic Distortion (T.H.D): < 0.05 %


• Signal-to-Noise Ratio: > 86 dB


• High-Pass Filter (HPF): 50 Hz - 250 Hz


• Low-Pass Filter (LPF): 50 Hz - 250 Hz


• Subsonic Filter: 10 Hz - 50 Hz


• Bass Boost: 0 - 15 dB (40 Hz – 100 Hz)


• Phase Control: 0 - 180


• Input Type: RCA


• Fuse Rating: External Fuse


• Remote Level Control: Included


• Protection: Thermal, Short Circuit, Overload, DC Fault


• Construction: Black brushed aluminum alloy heatsink


• Cooling System: Advanced heat dissipation with microprocessor control


• Weight: 16 lbs

Dimensions:

• Length: 21.06 in (535 mm)


• Width: 7.56 in (192 mm)


• Height: 2.32 in (59 mm)

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
• Mastercard
• American Express
• Discover
• Diners Club

Digital Wallets

• Amazon Pay
• Apple Pay
• Meta Pay (formerly Facebook Pay)
• Google Pay
• Shop Pay
• PayPal

International Payment Methods

• Bancontact
• iDEAL

Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
• Affirm
• Sezzle
• Snap
• Acima
• Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

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• Make sure you’ve received the shipping confirmation email with the tracking number.
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• If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.