Elevate your audio journey with the Audio Research LS28SE Line-Stage Preamplifier, a pinnacle of sonic excellence crafted for discerning listeners. Part of Audio Research’s acclaimed Foundation Series, this preamplifier blends decades of innovation with cutting-edge design, delivering breathtaking sound quality. With four 6H30 vacuum tubes and versatile connectivity, the Audio Research LS28SE Line-Stage Preamplifier is the perfect companion for any high-end stereo system or home theatre setup. Visit Len Wallis Audio to experience its transformative power firsthand.

Why Choose the Audio Research LS28SE Line-Stage Preamplifier?

The Audio Research LS28SE Line-Stage Preamplifier sets a new standard in preamplification with its advanced features. Four 6H30 vacuum tubes drive its warm, transparent sound, enhanced by proprietary gold coupling caps borrowed from the Reference series. Offering four balanced and four single-ended inputs, plus dual outputs, it integrates seamlessly into any audio setup. Its intuitive menu system—complete with input naming, tube hours tracking, and home theatre passthrough—makes it as user-friendly as it is powerful, delivering unmatched clarity and spatial detail for audiophiles.

The Audio Research LS28SE Line-Stage Preamplifier transforms your listening experience, bringing music and movies to life with stunning precision. Its rich sound enhances your home sound system, offering clarity and transient snap that make every note sing. Whether you’re curating a hi-fi stereo setup or upgrading your home cinema, its flexible inputs and outputs simplify integration. The ergonomic controls and remote functionality ensure effortless operation, while its durable design promises years of enjoyment. This preamplifier doesn’t just amplify—it redefines your connection to sound.

Technical Specifications

• Frequency Response: +0-3 dB, 0.4 Hz–200 kHz (balanced, 200k ohms load)
• THD+Noise: <0.007% at 2V RMS balanced output
• Dynamic Range: 122 dB (AES17)
• Gain: 18.5 dB (balanced), 12.5 dB (single-ended)
• Input Impedance: 100k ohms (balanced), 50k ohms (single-ended)
• Output Impedance: 600 ohms (balanced), 300 ohms (single-ended)
• Dimensions: 480 mm (W) x 137 mm (H) x 348 mm (D)
• Weight: 7.2 kg (net), 10.9 kg (shipping)
• Tube Complement: 4 x 6H30P dual triode
• Power Requirements: 105–125VAC 60Hz, 130 watts max

Len Wallis Audio Excellence Promise

Since 1978, Len Wallis Audio has been a beacon of hi-fi excellence, curating top-tier audio solutions. From our Lane Cove showroom in Sydney, we’ve spent over four decades selecting only the finest products for our collection.

We take pride in showcasing the best in audio innovation, ensuring every piece reflects our commitment to quality. We’re not just a store—we’re your partners in crafting a home stereo system tailored to your needs.

With personalised service and a passion for exceptional sound, we’re here to make your audio dreams a reality.

Ready to elevate your audio experience?

Call (02) 9427 6755
Email Sales@lenwallisaudio.com.au
Or visit us at 64 Burns Bay Road, Lane Cove, NSW, 2066