I’m selling an amazing subwoofer – the awesome Mackie HRS120 THX studio subwoofer. Grab it for just $1395. UPDATE – SOLD!

The Mackie HRS120 is a monster, weighing in at nearly 50kg. It’s able to deliver 400 watts continuously, via a high-power linear amplifier and power supply. All this power feeds into a downward-firing 12-inch Italian RCF bass driver.

This HRS120 sub is an awesome performer for home audio. Used mostly in studios, to master THX soundtracks, the HRS120 is a serious contender. The sub was part of the Mackie high-resolution or ‘HR’ product lineup.

This example is in excellent condition, just missing the fabric from the cover. This is easy to fix, but honestly it looks better without the grille on.

If you want a really good sub, this is an excellent option. It can be yours for just $1395. Contact me for more details.

Specs:

Applications:

• Professional Recording Studios
• Film (THX) & Post Production Studios
• Home Theater Installations

Key Features & Benefits:

• Active Technology Benefit: Precise phase alignment Benefit: Extremely low distortion Benefit: Minimal chance of speaker damage due to overdriving
• Servo Loop Woofer Technology Benefit: Output is as true to incoming signal as possible Benefit: Extraordinarily high damping factors
• Built-In, Front-Firing, Mass-Loaded Passive Radiator Benefit: Clear, detailed low frequency enhancement
• User-Adjustable Controls Benefit: Flexibility to adjust to wide range of user needs

HRS120 Features:

• Extended high-resolution output down to 19 Hz
• Adjustable high pass output for use with full range monitors
• Adjustable 60 to 110 Hz crossover point
• 110 Hz elliptical filter for Dolby AC-3
• 0 dB/+10 dB Output Level switch for AC-3 and THX Dot1 recording
• Crossover Defeat switch for THX
• 0(0)/180(0) Polarity switch
• Balanced XLR/unbalanced RCA inputs and outputs

Acoustic Performance

• Free field frequency response: 21Hz – 150Hz +/-1.5dB
• LF cut-off frequency: -3dB at 19Hz
• Sound Pressure Level @1 meter, 7.5dBu into balanced input: 100dB SPL@1m

Transducers:

• Low frequency: 12-inch (305mm) RCF Precision, extended LF transducer with 4-inch voice coil and cast aluminum frame
• Passive radiator: 12″(305mm)

Amplifier:

• Power: 400 watts, 8 Ohm load (500 watts peak)
• Slew rate: >35V/s
• Signal-to-noise ratio: >107db
• Distortion THD/SMPTE/IMD/DIM100: <0.02%
• Type: FR Series Class AB

Construction:

• Enclosure: 3/4″ (19mm) MDF with 1.25″ (32mm) MDF top panel, internal bracing
• Damping: Adiabatic foam

Controls:

• Subsonic Filter: flat/15Hz, 18dB/octave filter
• Filter bypass: In/full range (THX)
• Filter Select: Variable/110Hz elliptical
• Polarity: 0/180
• Variable crossover: 55Hz to 110Hz, 24dB/octave Linkwitz-Riley filter

Product weight & dimensions (without packaging):

• Height: 21″ (533mm)
• Width: 18″ (457mm)
• Depth: 21.3″ (541mm)
• Weight: 94 lbs (42.6 kg)

Some Pics…