Cello Audio Stradivari Grand Master Loudspeakers

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General:
Super rare and spectacular speakers from Cello.

The Stradivari Grand Master Speakers consist of a line array design, capable of projecting into the largest of listening areas with even and full sound throughout.

Built with no less than 8 tweeters, 8 midrange drivers, and dual 12" woofers per speaker!

They feature two sets of completely separate crossovers with tri-wire capabilities, hence the use of two mono amps per side.

This allows the Grand Masters to produce SPL upwards of 127db!

The 12" Woofers just came back from the consummate professionals at Millersound, where they received fresh surrounds and a clean bill of health.

These require jumpers or 6 pairs of speaker wire per side.  We can supply original Cello speaker cables if needed, just inquire for details. 

More From Cello:
Like the concert grand piano, the Grand Master is the largest model.

Elegant in dimension, each Grand Master is a towering cabinet with eight tweeters, eight midranges, and two 12" woofers.

These drivers allow for a great quantity of air to be moved quickly, achieving not only very low distortion but a staggering 127-dB SPL peak capability.

Since no single driver is required to overwork, a completely effortless reproduction is evident on even the most demanding musical passages.

SkyFi Cosmetic Notes:
Some light scratches on the glossy black cabinet, mostly visible on the sides. The speakers present well overall.

Ownership:
Single Owner

Connections:
Speaker Binding Post

General Sound:
Smooth, uncolored, undistorted natural and clean

Cosmetic Condition:
8/10 = Very Good. Excellent front faceplate, one minor flaw on chassis side or top. See our detailed rating description here.

Working Condition:
Working perfectly and tested in our lab and listening room.

Included:
Just the speakers

Packing:

These can be custom crated and shipped anywhere in the world for an additional fee. Please inquire for details.

Specs:
Tweeters:
3/4" (x8)

Midranges:
2" (x8)

Woofers:
12" (x2)

Design:
Acoustic Suspension

Minimum Power Requirement:
200 watts per channel

Impedance:
2 ohms (nominal)
1 ohm (minimal)

Crossover Frequencies:
500 Hz, 5000 Hz

SPL:
127 dB

Efficiency:
96 dB

Dimensions - Each Speaker:
17"w / 86.5"h / 18"d

Weight:
1000 lbs.

Link to Manual:
Click Here

Recommended Cables:
Cello OEM wires available. Please inquire for details.

Testing Process:
Our speaker evaluation process starts with a visual inspection of all drivers. We are looking for damaged or deteriorating woofer surrounds, dented tweeter domes, and cone damage. We also inspect the speaker connection points for loose or broken connectors.

After the initial visual inspection we connect the speakers to a reference amplifier with our preferred test tracks. With the speakers placed with proper distance we listen to each driver to make sure that they are producing the intended frequencies with no signs of distortion or rattle.

During listening tests with test tracks we check for proper stereo imaging and bass response at various listening levels. If there are any audible signs of issues, the speakers are taken to the bench where we perform a frequency sweep to isolate the issue so that it can be resolved by component repair or replacement.

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 200 Hz down to around 10 Hz. 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 adjustments 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.