Cirrus

Monacor Cirrus, in Klang+Ton 1/2009

Technical data:
- impedance: 8 Ohm
- rated SPL (2.83V/1m): 83 dB
- size (HxWxD): 73 x 22 x 23 cm
- frequency range (-8dB): 30 - > 22000 Hz
- crossover frequency: 3700 Hz
- speaker type: bass reflex

The Cirrus is a slim floorstanding loudspeaker with Monacor magnetostat RBT-95 and Monacor SPH-165 KEP bass driver with a Kevlar fibre cone. The name Cirrus is more than appropriate since the magnetostat delivers an extremely airy sound.

With a height of 73 centimetres the Cirrus is quite slim for a floor standing loudspeaker; but still, the bass is astonishing. And visually the SPH-165 KEP bass driver is quite pleasing with its yellow diaphragm surrounding the phase plug.

In all, the Cirrus is quite a pleasing loudspeaker and we can only congratulate Monacor to this accomplishment.

Excerpt from the Klang+Ton listening test

"...Placed within a compact stereo triangle the Cirrus quickly shows a remarkable talent: completely effortless sound reproduction detached from the physical speakers and enormous depth, a well balanced tonality and - very much in demand - an exceptional ability to excel at lower levels. The massive bass and the slightly bass-heavy configuration in conjunction with the airy tops reveal plenty of details even at a moderate volume. The Magnetostat and the Kevlar classic form a harmonic duo exposing no gap at all, despite the high cut-off frequency. The Cirrus produces a sweet, almost embellishing sound, relaxing and exciting at the same time. Especially the tweeter stands out, rendering delicate and adorned, but always feathery tops. Inevitably, the name "Cirrus" enters my mind. It's the perfect choice and characterises the performance of the speaker just right. Despite the attention to detail our contender doesn't show a hint of edginess even when listening to critical music, turning songs with a mediocre recording quality - often the order of the day - into digestible food for our ears. The Cirrus is, therefore, not critical at all regarding what music style is being reproduced. Besides, the frequency range is of no importance since the bass is phenomenal. A subwoofer would be entirely pointless; this speaker meets even the most demanding low bass requirements."

Our kit consists of:

- Monacor RBT-95 SQ Magnetostat
- Monacor SPH-165 KEP bass driver
- Loudspeaker damping material MDM-2
- Monacor MBR-45 bass reflex tube
- screws
- 4x16mm MZF-8614 Allen wood screws
- Loudspeaker cable 2 x 2.5 mm2 transparent
- Terminal ST-960 GM or T105 Au

- Building instruction:
Monacor Loudspeaker DIY magazine 2008

- the crossover components*) to be mounted on wood:
- Mundorf air core coil L140, 0.56 mH /0.20 Ohm
- Mundorf air core coil L140, 0.68 mH /0.26 Ohm
- Jantzen Cross Cap MKP 1.5 uF / 400V
- Jantzen Cross Cap MKP 3.3 uF / 400V
- Jantzen Cross Cap MKP 8.2 uF / 400V
- Jantzen Cross Cap MKP 33 uF / 400V
- MOX10 resistor 1.5 Ohm/10Watt (brown-green-gold)
- MOX10 resistor 3.3 Ohm/10Watt (orange-orange-gold)
- MOX10 resistor 10 Ohm/10Watt (brown-black-black)
- Resistor 8.2 Ohm/20 Watt
- Resistor 10 Ohm/20 Watt

Please note: *) apart from Monacor crossover components we also supply components by Jantzen, Mundorf and Intertechnik, offering a wider choice. The coils in series to the bass driver are 1.4 mm instead of 1.2 mm reducing the crossover heat, resulting in slightly tighter bass. Besides, we supply MKP capacitors throughout, instead of lossy MKT capacitors.

The price remains the same! Upon request we also supply original Monacor components.

Cirrus Kit without cabinet
Price per unit EUR 177,00

if you prefer to fit the components yourself on PCB:
PCB RA160, Order No. I-2766, Price EUR 5,10

Cirrus with high-end crossover

All coils are Mundorf copper foil; all capacitors are audiophile Mundorf MCAP/400V.

- Mundorf cfc16 copper foil coil, 0.56 mH
- Mundorf cfc16 copper foil coil, 0.68 mH
- Mundorf MCAP 1.5 uF / 400V
- Mundorf MCAP 3.3 uF / 400V
- Mundorf MCAP 8.2 uF / 400V
- Mundorf MCAP 33 uF / 400V

- MOX10 resistor 1.5 Ohm/10Watt (brown-green-gold)
- MOX10 resistor 3.3 Ohm/10Watt (orange-orange-gold)
- MOX10 resistor 10 Ohm/10Watt (brown-black-black)
- Resistor 8.2 Ohm/20 Watt
- Resistor 10 Ohm/20 Watt

Cirrus Kit with high-end crossover without cabinet
Price per unit EUR 202,00

if you prefer to fit the components yourself on PCB:
PCB RA160, Order No. I-2766, Price EUR 5,10

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