Audio Research LS28SE Pre Amplifier

Translation missing: en.products.product.price.regular_price $20,995.00
Translation missing: en.products.product.price.sale_price $20,995.00 Translation missing: en.products.product.price.regular_price
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The LS28 has been a favourite pre-amp of mine for a number of years trumped only by Audio Research's Ref 6SE. But that Ref 6SE stays put (generally) in our reference system. It's the LS28 that gets moved around, played and loved in a whole lot of combinations. It was sad to see our demo unit go but it's gone to a good home where it'll be appreciated.

The new LS28SE has the same musicality and relaxed engagement but even more clarity, focus and quickness. It's taking the expensive gold coupling caps from the REF 6SE and the same wiring and parts upgrades that the REF6SE went through.

Shipping cost is based on weight. Just add products to our quote request form and we will get back to you with a shipping quote and a link to securely checkout online!
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Audio Research LS28SE Pre Amplifier

Audio Research LS28SE Pre Amplifier

Translation missing: en.products.product.price.regular_price $20,995.00
Translation missing: en.products.product.price.sale_price $20,995.00 Translation missing: en.products.product.price.regular_price
Translation missing: en.products.product.price.unit_price
Product description
Shipping & Returns

LS28SE SPECIFICATIONS

  • FREQUENCY RESPONSE: +0-3dB, 0.4Hz to 200kHz at rated output (Balanced, 200k ohms load)
  • THD + NOISE: Less than .007% at 2V RMS BAL output
  • DYNAMIC RANGE: >122 dB (AES17)
  • GAIN:

o   MAIN OUTPUT: 18.5dB Balanced output, 12.5dB SE output

o   RECORD OUT: 0dB (Processor input: 0dB BAL output)

  • INPUT IMPEDANCE: 100K ohms Balanced, 50K ohms SE

o   INPUTS: 4 balanced, 4 single-ended. Assignable home theater processor passthrough

  • OUTPUT IMPEDANCE: 600 ohms Balanced, 300 ohms SE Main (2). Outputs (3): 2 main, 1 record out (XLR and RCA connectors).
  • MAXIMUM INPUT: 16V RMS BAL, 8V RMS SE
  • RATED OUTPUTS: 2V RMS (1V RMS SE) into 200K ohm balanced load (maximum balanced output capability is 17V RMS at less than 0.5% THD at 1kHz).
  • CONTROLS:

o   ROTARY ENCODERS: Volume (103 steps), Select Input

o   PUSH BUTTONS: Power, Menu, Enter, Mono, Invert, Mute

  • POWER SUPPLIES: Electronically regulated low and high voltage supplies. Automatic 45 sec. warm-up/ brown-out mute. Line regulation better than .01%
  • NOISE: Less than -100 dBv at maximum volume (103)
  • TUBE COMPLEMENT: (4)-6H30P dual triodes
  • POWER REQUIREMENTS: 100-125VAC 60Hz (200-250VAC 50/60Hz) 130 watts. Standby: 2 watts.
  • DIMENSIONS: Width 19” (48 cm) Height 6.5” (13.7 cm) Depth 13.7” (34.8 cm), plus handles

WEIGHT: 16.0 lbs. (7.2 kg) Net; 24 lbs. (10.9 kg) Shipping.

Shipping cost is based on weight. Just add products to our quote request form and we will get back to you with a shipping quote and a link to securely checkout online!

We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.

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