Dali Callisto 6 C Floor Standing Speakers

✓ 5 Year Warranty included
✓ Authorised UK Dealer
✓ FREE Next Working Day Courier Service to mainland UK
When truly deep bass performance and room filling sound-pressure is needed, the floor standing CALLISTO 6 C is the perfect choice.
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INTRODUCTION

The CALLISTO 6 C represents the virtues of traditional Hi-Fi wrapped in a convenient wireless audio solution.

We have developed everything from the CALLISTO 6 C drivers to the amplifier in-house, which is why we can optimise every single component to match each other perfectly. This enables us to design the woofers to be more linear than would be possible in a similar traditional passive speaker system.

We are pushing the woofer design to new limits of performance, which is possible as we are in total control of the signal path. Leveraging this potential, we elevated the audio performance to levels that surpass almost any speaker amplifier combinations in this price bracket.

The CALLISTO 6 C connects wirelessly to the DALI Sound Hub through an extremely stable digital connection - made on either the 2.4 GHz or the 5.8 GHz band depending on location and quality of the connection. With latency below 25 ms, sync between video and audio from a movie or TV source is obtained well within conventionally acceptable limits.

 

CALLISTO SPEAKERS

The CALLISTO speaker series presents a unique opportunity for DALI to deliver the best of both worlds. Controlling the development of everything from the drivers to the amplifer, we can optimise every single component to match each other perfectly. This enables us to design the woofers to be more linear than would ever be possible in a similar priced traditional passive speaker system. Pushing the woofer design to new limits of performance is possible because we are in total control of the signal path, and can therefore ensure the control needed so not to overextend the drivers. Leveraging this potential, we elevated the audio performance to levels that surpass almost any speaker amplifer combinations in this price bracket. 

 

CALLISTO 6 C

When truly deep bass performance and room filling sound-pressure is needed, the floor standing CALLISTO 6 C is the perfect choice. Gaining extra width and depth from the added woofer and internal cabinet volume, the CALLISTO 6 C can deliver a complete and highly detailed three-dimensional sound stage into even large rooms.

Both speaker models have an RCA input for volume controlled line level input. This enables you to connect an audio device directly to the speakers if desired, although we recommend using the DALI Sound Hub to obtain the full convenience of the CALLISTO speakers, including wireless audio transfer.

 

CABINET

At our large woodworking facility in Denmark, we precision-cut the CALLISTO 6 C MDF cabinets ourselves to maintain the high quality, followed by applying the vinyl. 

The cabinets for the CALLISTO 6 C are constructed from 25mm solid MDF, which employ a very rigid construction with robust bracings across the inside of the cabinet for extra reinforcement. This contributes to a stiffness and density that practically eliminates resonance within the cabinet. At the same time great care is taken not to reduce the internal volume of the cabinet unnecessarily. 

The mounting of the drivers and the final tests and approvals on each and every speaker is also handled directly at our own assembly lines in our Danish factory. 

Through strict in-house control of every aspect of production, CALLISTO achieves a level of fit and finish typically found only in products well beyond its price point. 

 

WOOFER

The CALLISTO 6 C features two 6½" unique woofers which take low loss and linearity to a whole new level. By controlling the entire signal path from source to driver, the DALI acoustics team were able to elevate audio performance beyond conventional speakers. 

Every element of the CALLISTO woofer is optimised to work in perfect balance with the built-in amplifier, and because of this, the sound stage created is detail-rich, time-coherent and effortlessly immersive. The result is music reproduced exactly as the artist intended. 

We used our experience from developing the OPTICON and RUBICON woofers - combined with a whole lot of listening hours - to optimise the magnet motor to deliver its ultimate. With that knowledge we were able obtain a very linear and perfectly symmetrical suspension within the working area of the voice coil and membrane, only taking control and slowing down the membrane movement at the outermost excursion points. 

The extra linearity obtained both around the voice-coil and in the spider manifests itself in reduction in mechanical distortion and less strain on the amplifier, which leads to more detailing and a better defined sound stage. 

 

TWEETER

The DALI trademark hybrid tweeter module was optimised specifically for the CALLISTO 6 C. It combines the dome tweeter with a ribbon tweeter for an amazing rendering of the high frequencies, and a dispersion of high frequency audio that outperforms all other tweeter technologies. 

The dome membrane is very soft and ultra-lightweight, and actually so thin that a coating has to be applied to hold the material together and be uniform in construction. We have optimised the magnet system to maximize flux saturation right at the voice coil area. This optimisation combined with the use of an ultra-thin magnetic fluid for cooling results in better control, power handling and greatly limits distortion. 

The ribbon part of the hybrid module is a magneto-static type tweeter. Four bands of conductive material make up the active diaphragm that is controlled by a strong magnetic field formed around it. The ribbon tweeter is the master of wide dispersion, and combining it with the soft dome, we get a tweeter module that can be utilised as low as 2.0 KHz and continues to perform well above 30 KHz. This extreme bandwidth combined with the ultra wide dispersion is an important part of the DALI sonic definition

 

AMPLIFIER

Designing a ‘best in class’ active speaker system is the sum of many parts. One truly important part is the amplifier, or more correctly the amplifier module. Any quality amplifier module consists of three equally important parts that need to be designed to work together in perfect harmony: the amplifier itself, the PSU and the signal processing. The delivery from the signal processing and the PSU to the amplifier circuitry must adhere precisely to the amplifiers needs and demands. Only in this way can you achieve an undistorted, uncoloured and coherent amplification. 

The CALLISTO 6 C Class D amplifier is based on patented state-of-the-art technology with a global feedback and self-oscillating design chosen for its very musical properties. Being able to deliver 250 Watts for up to 5 seconds, there is plenty of power to ensure more than enough sound pressure even in complex musical passages or massive explosions in movies.

More Information
Features
Frequency Range (+/-3 dB) [Hz] 37 - 30,000
Maximum SPL [dB] 110
Crossover Frequency [Hz] 2,600
Crossover Principle Hybrid Full Active 24 bit DSP and Passive All Analogue
Hybrid tweeter module, Super high freq. driver, Quantity 1 x 17 x 45 mm
Hybrid tweeter module, Super high freq. driver, Diaphragm type Ribbon 
Hybrid tweeter module, High frequency driver, Quantity 1 x 29 mm
Hybrid tweeter module, High frequency driver Diaphragm type Soft Textile Dome 
Low frequency driver, Quantity 2 X 6½"
Low frequency driver, Diaphragm type Wood Fibre Cone 
Enclosure type Bass Reflex 
Bass Reflex Tuning Frequency [Hz] 40.0
Max. Amplifier Power Output [RMS watt] 250
Amplifier Type Discrete Class D (Closed Loop, Self Oscillating)
Onboard DAC Burr Brown PCM1796 (Balanced output)
Input Impedance [ohms] 5,000
Connection Input ADC-in (RCA) 
Wireless Input(s) Full 24 Bit / 96 kHz (No bit-loss attenuated)
Max. Digital Resolution [bits/KHz] 24 / 96
Recommended Placement Floor 
Recommended Distance From Wall [cm] 25 - 100
Max. Power Consumption [W] 325
Standby Power Consumption [W] 1.2
Dimensions With Base (HxWxD) [mm] 1004 x 200 x 346
Weight [kg] 22.6
Accessories Included Manual 
Rubber Feet 
Front Grille 
Input Sensitivity [mV] 1,850
Input Mains Voltage [Volts] 100 - 240 (Universal mains)


How will you send my item?

We ship to addresses within the UK using Royal Mail and DPD couriers.

How much does delivery cost?

Standard 2-3 working day delivery is FREE on all orders to mainland UK. Next working day courier service is available on all orders for a small fee of £4.99. On some items this is provided for FREE. 

For orders to UK Non-mainland and International destinations, there will be an additional charge at checkout. Please see below for more information.

How long does delivery take?

Depending on the delivery service you choose, delivery usually takes between 1-3 working days to mainland UK from the moment we despatch your order. Orders to UK non-mainland and international destinations can take longer.

When will you despatch my order?

Orders placed before 3pm are processed and despatched the same day (excluding bank holidays and weekends). Orders placed on weekends will be processed and despatched the following working day.

*Please note that international orders may require extra checks before we are able to despatch your order so timescales may vary.

Can I track my delivery?

Yes - Order tracking is offered as standard on all items, whether they are shipped via DPD or Royal Mail. You will receive your tracking information via email once we have despatched your order. 

UK Non-mainland and International destinations.

Due to the UK leaving the EU, some of our delivery partners have changed the way we ship to international and offshore destinations. This means that for the time being we are unable to ship items to these locations.

We are still accepting orders to these destinations however delivery times and prices are not final. We will confirm via email once we know more from our delivery partner.

Shipping for all items to UK Non-Mainland and International destinations will incur a charge at checkout. This charge is not final and we may need to charge for additional postage if required.

Shipping to international destinations may require further security checks and I.D. may need to be provided by the cardholder. We reserve the right to cancel any orders where you are do not pass our security checks or do not pay for appropriate postage.

Please note that we are unable to ship some items outside the UK. To avoid any disapointment please contact us before making your order.

What do you class as UK Non-mainland?

Rep. Ireland, N. Ireland, Channel Islands, Jersey, Guernsey, Isle of Wight, Isle of Man and Scottish Highlands. If you are unsure whether your address is classed as UK Non-mainland please feel free to contact us and an advisor will be happy to help.

For any further enquiries with regards to your delivery please contact us on 020 8813 7666 and one of our adviser's will be happy to help.


If you're not happy with your item or you've changed your mind.

Even though we're sure you'll be happy with your purchase, it's important that you are aware of how we deal with returns in the event that you need to send something back.

We understand how inconvenient it can be when you buy a product and aren't 100% satisfied with it. For this reason we have designed our returns policy to prevent any further inconvenience to you in these instances.

Under 14 days

  • You can return your goods for a full refund or exchange as long as you inform us of your intention to return the goods within 14 days of receipt, starting from the day after you receive your goods (Exclusions apply, see below.)

  • All return costs are down to the buyer and it is recommended that you return your items using a trackable method with appropriate insurance (if required).

  • Once we have confirmed your return, please ensure that you return the item within 14 days.

  • If a returns number is provided then please ensure that the parcel has this clearly marked.

  • Items need to be returned in "as new" condition in their original packaging. We don't mind if you open the product to check it, however any used or damaged products will be subject to a 25% handling fee so please take care when opening your items. 

After 14 days

  • We will not offer a refund after 14 days of you receiving your delivery unless your product is faulty. 

Exclusions from our returns policy

As we're sure you'll understand, there are some products that we can't offer returns on due to their nature. These include:

  • Special order items and cables cut from a reel (priced per metre). These items will be clearly identifiable.

  • In-Ear headphones due to health and hygiene reasons.

  • Products that include software which require activation.

 Please note that these exclusions do not apply to items that become faulty.

If your product becomes faulty

We endeavour to get your items to you in fully working order, however in the event that your items do become faulty, please read below on what you should do next.

In a lot of cases with some products, faults can be fixed by performing some basic troubleshooting, so to prevent any further inconvenience to you we advise that you contact our Customer Service team who can guide you through some basic troubleshooting before sending items back.

Under 28 days

  • If your items become faulty within 28 days of delivery you are entitled to a full refund or exchange. Please contact our customer service centre who will provide necessary returns details.

  • Please send the items back with a cover note including a description of the fault and your original order number.

  • Once we have fully tested the item and confirmed the fault, we will process the refund or exchange including cost of carriage back to us (within reason).

  • If during our testing we cannot find a fault, no refund will be given and you will be charged for delivery of the item back to you.

After 28 days

  • After 28 days you will still be able to get your faulty items repaired or replaced within the manufacturers warranty and we will be happy to assist you with this. Please contact our customer service team to find out the best way to get your items repaired or replaced. Please be aware that after 28 days we will not cover you for any carriage costs.