Cadence 900 Watt 2-Channel 2-Ohm Class A/B Car Audio Amplifier QRS2.300GH

• High-Power Dual Channel Output – Delivers up to 450 watts RMS per channel at 2 ohms or 900 watts bridged, giving your speakers or subwoofers serious clean power.
• G/H-Class Efficiency – Combines the warmth and clarity of Class A/B sound with the efficiency of modern G/H-Class power supply design
• Precision Audio Control – Adjustable HPF and LPF (50–250Hz), plus Bass Boost up to +15dB at 45Hz for a customized sound experience.
• Elegant, Durable Design – Black brushed aluminum chassis with nickel-plated terminals offers both refined aesthetics and long-lasting reliability.
• Advanced Protection System – Built-in microprocessor monitoring defends against thermal overload, short circuit, DC faults, and overcurrent for safe operation.

Cadence 900 Watt 2-Channel 2-Ohm Class A/B Car Audio Amplifier QRS2.300GH

This Listing Includes:

• (1) Quartz Core QRS2.300GH 2-Channel Class A/B Car Amplifier

The Quartz Resonance Supreme QRS2.300GH delivers a perfect balance of elegance, control, and raw power. Built with G/H-Class Power Supply technology, this amplifier merges the warmth of Class A/B sound with modern efficiency. With up to 900 watts RMS in bridged mode, it’s designed for true audiophiles seeking precision, depth, and musicality in every note. Its black brushed aluminum chassis exudes sophistication, while advanced protection circuitry ensures stability under any condition. From delicate highs to thunderous lows, the QRS2.300GH turns every song into a detailed, emotional performance worthy of its Supreme name.

Specifications:

• Amplifier Type: Class A/B with G/H-Class Power Supply


• Channel Configuration: 2 Channels


• RMS Power @ 4 Ohms: 300 W x 2


• RMS Power @ 2 Ohms: 450 W x 2


• Bridged RMS Power @ 4 Ohms: 900 W x 1


• Frequency Response: 20 Hz - 30 kHz


• Input Sensitivity: 200 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


• Bass Boost: 0 - 15 dB @ 45 Hz


• Fuse Rating: 35 A x 2


• Input Type: RCA


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


• Operation Modes: Stereo, Bridge, or Tri-Mode Compatible


• Construction: Black brushed aluminum heatsink with nickel-plated terminals


• Cooling System: Advanced heat dissipation design

Dimensions:

• Length: 16.93 in (430 mm)


• Width: 7.56 in (192 mm)


• Height: 2.32 in (59 mm)


• Weight: 12 lbs


• Shipping Dimensions: 21 Ã 12 Ã 5 in

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.

Why Can’t I Track My Order?

If you're having trouble tracking your order:

• Make sure you’ve received the shipping confirmation email with the tracking number.
• Log into your account on our website and use the “Check Your Order Status” button.
• If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.