McIntosh XR1051
The XR1051 is a floor-standing loudspeaker from McIntosh, and the record on it is thinner than most of the company's catalog. No production years, original price, or market positioning have turned up in any source. What is documented comes largely from a single spec database and scattered owner reports.
The known specs describe a 2-way bass-reflex design with a 1-inch dome tweeter and dual 10-inch woofers. It is rated at 4 ohms with 92dB sensitivity and a frequency response of 30Hz - 20kHz (±2dB). Dimensions are 378mm × 960mm × 330mm, and each cabinet weighs 22.5kg. One quirk: the source lists two crossover points, 700Hz and 2500Hz. That is unusual for a true 2-way and suggests the "dual woofers" may not operate identically, but no source clarifies the arrangement. The ambiguity stays as-is rather than getting a guess.
What little reception exists is positive. An AudioKarma owner reported running a pair with an MC2205 amplifier and called them "fantastic," while another noted they held up well in low-frequency output even after being replaced. The same forum is where Audio (August 1987, p.104) surfaces indirectly. An ad in that issue touted improvements in frequency-response smoothness and imaging from acoustic treatment behind speakers.
Parts are the main practical problem. McIntosh-branded drive units for these are reportedly hard to source. One Reverb listing was observed at $1,299, but no price trend data exists. There are no documented common faults, no service manuals recovered, and no official McIntosh promotional material in the record.
- Type: 2-way bass reflex, floor-standing
- Drivers: 1" dome tweeter, dual 10" woofers
- Frequency response: 30Hz–20kHz (±2dB)
- Impedance: 4 ohms
- Sensitivity: 92dB
- Crossover: 700Hz and 2500Hz
- Dimensions: 378 × 960 × 330mm (W×H×D)
- Weight: 22.5kg each
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