Sunfire True Subwoofer MKII 10"

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General:

Clean and perfectly working vintage subwoofer which revolutionized the sub world in the early 2000's and is still relevant by today's standards.

A great value and a terrific performer. 

Recommended Cables:

Kimber Kable - Subwoofer Interconnect

Testing Process:

Our subwoofer evaluation process starts with a visual inspection of all drivers. We are looking for damaged or deteriorating woofer surrounds, cone damage, or rubbing voice coils. We also inspect the input connections for damage.

After the initial visual inspection, we connect the sub at our bench and perform a sine wave sweep from about 200Hz down to around 10Hz. During this sweep we are listening for excessive rattle or other signs of improper function. If the sweep passes, we then increase the input level to evaluate how the woofer performs at high output levels. If the woofer has built in crossover features or multiple connection options these features are tested at this time.

We complete the subwoofer evaluation by feeding the unit with an audio signal in conjunction with our house music system to see how it responds to low frequency content in real world conditions while paired with a full range system.

Specs:
• 2700-watt amp featuring patented Tracking Down converter power supply.
• Input coupling is optical: accepts standard and high-level inputs.
• Bore 8 inches - stroke 2.35 inches.
• Total air volume displacement is over 235 cubic inches.
• Crossover points: variable from 35 Hz to 100 Hz.
• Crossover slope: 36 dB/octave.
• Input level (volume) control
• Phase continuously adjustable 0 to 180 degrees.
• Frequency response: 18 Hz to 100 Hz (plus 0-3 dB).
• Passive 70 Hz 6 dB per octave hi-pass line level output for Satellite loudspeakers
• Dimensions: 11" × 11" × 11"
• Weight: 48 lbs.