ADCOM GIA-275 Series II
Best compact integrated amplifier for modern audiophiles seeking versatile connectivity.
Experience remarkable sound quality with the ADCOM GIA-275 Series II Integrated Amplifier. This compact, all-in-one system combines amplifier and pre-amp functions, delivering powerful audio from a small package. It supports a wide range of inputs, including analog, digital coaxial, digital optical, USB, and Bluetooth V4.0 with aptX for CD-quality wireless streaming. Play high-resolution audio from your computer or connect legacy analog devices. The GIA-275 is designed for music lovers seeking superior sound and modern connectivity.
$556.50
Owner Satisfaction
4.6
/ 5
Category Rank
852
/ 1719
#852 in Power Amplifiers
Price vs Category Average
-93%
Below average
Output Power
80812042020
/ watts per channel at ohms, watts per channel at ohms (Hz-kHz)
Who it's for
- Purists seeking a clean, neutral, and dynamic sound profile
- Audiophiles driving power-hungry or low-impedance speakers
- Listeners wanting direct digital connectivity for modern sources
Who should skip it
- Design-conscious buyers preferring sleek, contemporary aesthetics
- Users with limited shelf space or compact media consoles
- Consumers expecting built-in network streaming and smart features
Performance breakdown
Audio Fidelity
The Wolfson DAC delivers crisp, high-resolution sound for discerning listeners.
Connectivity Versatility
Seamlessly bridges the gap between legacy analog gear and modern digital sources.
Power Efficiency
Robust output handles demanding speakers with impressive authority and headroom.
Wireless Performance
AptX support ensures reliable, high-quality streaming from your mobile devices.
Form Factor
Compact footprint fits perfectly into tight spaces without sacrificing sonic performance.
Future Proofing
Software upgradeability provides a helpful path for long-term system enhancements.
Key Specs
Output Power
80 watts per channel at 8 ohms, 120 watts per channel at 4 ohms (20Hz-20kHz)
Total Harmonic Distortion
< 0.7% (THD + noise at 80 watts into 8 ohms)
Frequency Response
10Hz-20kHz = +0. -0.55dB @ 1 watt into 8 ohms
Weight
6 lbs (2.7kg)
Dimensions
11.8” x 13.7” x 7.8” (30cm x 35cm x 20cm)
DAC
Wolfson WM8740
Power Supply
120VAC & 230VAC / 50-60Hz
Bluetooth Receiver
V4.0 with aptX
Features
- All-in-one integrated stereo amplifier with pre-amp
- Versatile analog and digital input options
- CD-quality wireless streaming via Bluetooth V4.0 with aptX
- High-resolution audio support up to 24-bit/192kHz
- Compact and lightweight design for easy placement
- External antenna for enhanced Bluetooth reception
- Software upgradeable for future enhancements
What customers say
The ADCOM GIA-275 Series II is celebrated as a high value powerhouse, primarily for its exceptional sound quality and robust power delivery. Users consistently report an authoritative, clean, and highly musical signature that effortlessly drives difficult speakers. This neutrality ensures excellent synergy across various audio setups. A major theme is the outstanding value; many feel this integrated amplifier competes with much pricier models, establishing it as a performance leader for its cost. Build quality is also highly regarded, suggesting long term durability. While the digital input section receives adequate feedback, the core audio performance solidifies the GIA-275 Series II as a highly recommended component for serious listeners seeking clarity and power.
Know before you buy
Yes. The amplifier features a built-in Wolfson WM8740 DAC that supports high-resolution audio up to 24-bit/192kHz, allowing you to play high-fidelity files directly from your computer via USB.
The GIA-275 uses Bluetooth V4.0 with aptX technology, which is designed to deliver CD-quality wireless audio. While it provides excellent convenience and clarity, a wired connection remains the best choice for critical listening if you want to avoid any potential compression.
With 80 watts per channel at 8 ohms and 120 watts at 4 ohms, this unit has sufficient power to drive most bookshelf and many floor-standing speakers effectively. Its Class A design ensures a clean, high-quality signal for your audio setup.
Yes, it includes analog RCA inputs that allow you to connect legacy devices. Please note that if you are using a turntable, you will likely need an external phono pre-amp unless your turntable has one built-in.
The software upgradeable design allows the amplifier to receive future firmware enhancements. This ensures your device can stay current with potential performance improvements or compatibility updates as technology evolves.
The external antenna is included to provide a more stable and reliable wireless connection. We recommend keeping it attached to ensure the best possible range and to minimize signal dropouts when streaming from your mobile devices.
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