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XM Radio

xm radio tuner

The MD 609T XM Radio
xm radio tuners of Magnum Dynalab

XM Radios for satellite radio

larger view of the MD609T XM Radio   

XM Radio

From our legacy in pure audio reproduction, we are proud to present another significant introduction to the Magnum Dynalab collection of source audio products.

Introducing the MD 609T XM Radio Tuner. Featuring sonic imaging, soundstaging and a window into the world of entertainment never before realized in any satellite xm radio device.

With our pioneering Digital Interface Board, an analog audio stage producing unbridled sonic clarity and finesse, and an XM radio module providing listeners with a stirring assortment of stations available almost anywhere in North America, this is truly a product worthy of inclusion in our line-up of high-performance source audio products.

xm radio tuner

Given the current rate of evolution among source audio products, we have observed many high-performance audio manufacturers spend the bulk of their R&D working towards the capturing, rendering and control of various digital media. While critically important to any high-performance, digitally-driven audio product, many manufacturers do not use the same rigor when designing the analog essentials. Our purist philosophy and the fastidious attention to detail to the analog signal path following the conversion from its digital source is what distinguishes a Magnum Dynalab product. The MD 609T XM Radio is a product for music lovers, providing a sound entertainment experience that will change your view of XM radio.

xm radio tuner

xm radio tuner

With 20 XM radio presets, the ability to browse by both station and genre, and a 4.2" blue LCD display featuring all relevant metadata including channel, category, artist and track, the MD 609T XM Radio is as functional at it is melodic. The product's stately symmetry is characteristic of many Magnum Dynalab products, with a large machined button used for power on/off, plus similarly tactile buttons for menu, select, station up/down and category up/down. All functions are also controlled by way of a handsome IR remote.

The MD 609T XM Radio is also equipped with a RS232 port that allows control of the Tuner from a variety of devices including Whole-House A/V Distribution and Home Automation Systems, or just about any hard-wired device capable of outputting RS232 commands. All relevant protocols are available in our MD 609T/MD 606T Installation Guide.

xm radio

With delicate and fastidious detail, our purist philosophy has established a truly unique design that realizes zero influence on the original signal. Our major design differentiator is not insignificant ... to our knowledge, we are the world's only audio manufacturer to eliminate capacitors after the gain stage of the tubes.

The inclusion of capacitors in any audio stage results in a variable impedance across the frequency range. That is, output impedances can vary anywhere between 10 and 20 times from high to low frequencies, putting additional stress on interconnects, and altering the tonal subtleties of the sound stage across the spectrum. In the 609T XM Radio, direct current from the MD Reference Cryovalve 6922 tubes is delivered without the altering impact of output capacitors, resulting in incredibly low impedance (200 ohms) that is flat across the frequency range (0.2Hz to 200KHz). This flat impedance also eliminates the influence of the interconnects, resulting in a signal that is virtually identical to that which was originally recorded in the studio.

This unique design forms the backbone of our Triode Reference Audio Control Center (TRACC) technology, which is quite simply the most accomplished analog audio stage we have ever developed. In addition to its low impedance, it boasts a host of other impressive specifications:

  1. Signal to noise ratio > than 110 dB, the micro information from the original signal is maintained.

  2. Zero phase shift from 0.2 Hz to 200KHz

  3. Zero distortion variance from 0.2 Hz to 200KHz

The demanding level of signal movement requires a solid foundation, necessitating double sided 0.093 thick printed circuit boards, providing the base to minimize potentially damaging vibration. With isolation insured, individual components can perform as planned without unbridled influence from neighboring elements and activity. To maximize conductivity and insure that all micro-information is maintained, ceramic tube sockets and all circuit board contacts are generously gold plated. Special feet have been designed using Vibrapod Isolators to insure that the performance is not comprised from external vibration.

Without compromise, the MD 609T XM Radio includes a collection of components supplied by world leaders Mundorf, WBT, Wima, Dale-Vishayand and Burr Brown. For example, in the critical areas of the audio board before the tube stage, we use the Mundorf Supreme/Silver/oil polypropylene dielectric capacitors and as the name indicates, high purity silver is used for the capacitor coating. The winding is impregnated with a special oil, and these features contribute to an even fuller and smoother tonal richness and diversity. Along with their collective ability to move sound while maintaining the purity of the original signal, these components are highly regarded for extensive unwavering performance over the long haul.

The 6922 tubes employed are unique in the true sense of the word. Each MD Reference Cryovalve tube undergoes a cryogenic freezing process, whereby the stresses interior to the materials of the tube are substantially and permanently relaxed. The process also involves the cleaning and polishing of all pins, improving contact quality and ultimately resulting in substantial sonic improvement. To minimize the stress on the tube during normal operation and also to ensure long

xm radio
tube life a special turn-on circuit is incorporated that has a very slow rise time slope. This brings the tube up to the optimum operating current at a very controlled and safe rate.

The high quality demands of our TRACC technology necessitated a Digital Interface Board that provided the same high level of performance. Developed in-house, this unique circuit board uses two industry leading core components for the receiving and rendering of the digital signal, with the front end of the board driven by the CS8416 192kHz Digital Audio Receiver from CIRRUS Logic; capable of extremely high-performance audio standards. And when combined with the Burr Brown PCM1794, 200kHz current output Delta-Signma over-sampling DAC for audio rendering, and the OPA627 integrated circuit, the result is a perfectly clocked, incredibly accurate signal that is virtually jitter-free.

We have also taken special care to design the digital front-end of the device (the section that receives and renders the satellite radio signal) of the MD 609T XM Radio to be replaceable if necessary. That is, should there be changes to the source feed of Satellite radio, we at Magnum Dynalab are committed to providing those upgrade options to all customers.

xm radio

The importance of this stage cannot be understated. The creation of a clean, continuous source of DC power that is free of ripple at all frequencies ensures that associated downstream components can perform at their highest level, notwithstanding the unpredictable demands placed on it by the dynamics of the music. Throughout the history of high-fidelity innovation, power supply purity and management have proven to be one of the greatest challenges for designers. A solution without capitulating to compromise was needed.

xm radio

To deliver on this challenge, our Director of Audio Design Zdenko Zivkovic concentrated much of his efforts on the ground plane. A unique loop that connects all components in the device, including the power supply, tube output stage and digital interface board is designed to eliminate the inherent ripple resulting from grounding circuits looping back into the chassis. The result is that all sources of impurities that originate with the ground plane are eliminated, once again leaving only the purity of the original signal. This eliminates any transients and mysterious high frequency noises, resulting in a level of purity that is as close to a direct battery supply as imaginable. In addition, to insure that the audio signal is isolated, all inputs and outputs are isolated from the chassis with a special insulator.

Finally, a custom designed Toroidal transformer is employed to provide pure power to the distinct sections of the device, with secondary windings matched perfectly for the specific voltage requirements of the unit.

xm radio

With access to over 170 channels in the USA, and up to 100 channels in Canada, XM Radio provides a wealth of listening options. Broadcasted in the S band using the frequencies ranging from 2332.5 to 2345.0 MHz, XM radio employs 3 satellites hovering in geostationary orbit plus a network of ground-based repeaters. Coverage includes all of continental US, the southern tip of Alaska, all of Southern Canada, plus many of the Caribbean Islands and most of Mexico.

To activate XM Radio in USA:
On-line: www.xmradio.com
Phone: 1-800-XM-RADIO, 1-800-967-2346

To activate XM Radio in Canada:
On-line: www.xmradio.ca
Phone: 1-877-GET-XMSR (1-877-438-9677)

how to order an XM Radio from Magnum Dynalab

Find a Magnum Dyanalab dealer near you
or call us Toll Free in North America: 1-800-551-4130

more questions about XM Radio?

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XM Radio FAQ

What is Satellite Radio?

Think of Satellite radio as you would think of Satellite television. Satellite Radio providers have looked at the success of Satellite TV, and developed programming based on the hope that the same individuals attracted to Satellite TV because of its quality, depth of programming and relatively low cost will also be willing to pay monthly for access to satellite audio. Satellite Radio providers have helped differentiate themselves from terrestrial FM through the inclusion of a huge assortment of stations, all distributed 100% commercial free.

Who Provides Satellite Radio in North America?

In North America, the two Satellite Radio providers are XM Radio and Sirius Radio. They have both developed content that would satisfy just about any audio listener, both casual and audiophiles. Likewise, they both have relatively low monthly costs. XM Radio and Sirius Radio also have a distinct advantage other digitally distributed audio, using technology that encodes as a much higher resolution than many Digital or HD Radio stations, and a much broader assortment of stations.

Why did Magnum Dynalab choose to produce an XM Satellite Radio Tuner versus a Sirius Satellite Radio Tuner?

Despite some subtle differences in the decoding process, our decision to support the XM Radio technology is based entirely on content. Quite simply, we feel that XM Radio has a far greater selection of music stations, including various classical, jazz, blues and rock stations. Our customers are music lovers, and we feel that XM Radio provides the content that Magnum Dynalab customers will like best.

Why did Magnum Dynalab choose to produce an XM Satellite Radio Tuner versus an HD Radio Tuner?

What is most important to mention first is the fact that the term 'HD Radio' does NOT stand for 'High-Definition Radio'. 'HD' is merely a trademark developed by iBiquity Digital Corporation, the developer of HD Radio, with no direct reference to a higher decoding rate of the digital signal. Rather, 'HD' more appropriately stands for Hybrid Digital, which describes the process of HD Radio locking onto a station - first locking onto the analog signal in mono, then stereo, then trying to find a digital signal. If digital signal reception is lost, the radio will revert to analog, the same way a car radio will go into mono operation from stereo when signal strength is insufficient for stereo. Much of the success of this system property relies on proper synchronization of the analog and digital audio signals by broadcast engineers at the transmitter. In part due to this variability in broadcast quality (versus the consistent quality of the XM signal), we have not elected to proceed with an HD Radio device. To put an exclamation point on our decision, extensive listening tests with prototypes we have created in our lab have not resulted in sound quality that is consistently satisfactory for us to adopt this technology.

What will I hear on XM Radio?

XM Radio offers a huge variety of stations you'll never hear on commercial radio. Many of the music channels are commercial free, and most are unique and original to the XM Radio frequency. Virtually every musical style is represented in depth and variety, including a healthy assortment of classical, blues, jazz and rock 'n roll. An entire listing of the XM Radio channels can be found at www.xmradio.com in the USA or at www.xmradio.ca in Canada.

How will the merger of XM Radio and Sirius Radio affect my Magnum Dynalab XM Satellite Tuner?

Our customers can rest assured that when the merger of XM Radio and Sirius Radio happens, their Magnum Dynalab tuner will continue to remain completely functional.

Firstly, XM Radio has clearly stated that all XM Radio devices currently in market will receive a mix of programming from both services following a merger (http://www.xmradio.com/merger/promise.xmc).

Secondly, and most importantly, we at Magnum Dynalab have a history of perpetual product upgrades. If XM Radio fails to deliver on their promise, we assert that we will provide the product upgrade necessary to ensure that your Magnum Dynalab device will accommodate any changes to the Satellite Radio technology.

Where is XM service available?

XM Radio is available in the continental U.S., its territories and adjacent waters, as well as in Canada. In Canada, the XM Radio service is made available through XM's exclusive licensee, Canadian Satellite Radio Inc. (www.xmradio.ca). XM provides excellent coast-to-coast signal coverage to the densely populated regions of Canada through its satellites and a robust ground repeater network installed in major metropolitan areas. Currently, XM's service is not sold in Mexico.

Does XM Radio offer customer support?

XM Radio's Listener Care Center provides efficient and reliable support services to XM Radio subscribers through a dedicated toll-free telephone number, 1-800-XM-RADIO (1-800-967-2346). Listener Care Representatives provide amazing care in dealing with activations, general inquires, trouble shooting and billing care services.

XM Radio Customer Support's hours are:

Mon - Sat: 6AM - 2AM ET
Sun: 8AM - 8PM ET

How much does XM Radio cost?

If you are a consumer, you will pay a $14.99 activation fee plus monthly service fee of $12.95 for over 170 channels in the US, and over 100 channels in Canada. If you activate on XM's E-care website http://activation.xmradio.com, you will only need to pay $9.99 for your activation fee plus the monthly service fee of $12.95.

If you are a business, you must be set up as a commercial account. Commercial accounts are $27.95 with a one-time activation fee of $14.99. At this time, you cannot activate or manage a commercial account on the web. Please call XM Radio at 888-689-2300 in the USA or visit www.xmradio.ca in Canada for your commercial activation.

Do I have to sign a contact for XM Radio Service?

There is no contract, and the service can be cancelled at any time.

How does XM Satellite Radio work?

XM Radio provides digital programming directly from three high-powered satellites in geostationary orbit above the equator. XM-1 ("Roll") and XM-2 ("Rock") are co-located at 115 west longitude and XM-3 ("Rhythm") is located 85 west longitude in addition to a network of ground-based repeaters. The combination of the three satellites and a series of ground-based repeaters ensure uninterrupted coverage throughout all of continental North America.

A song at XM Radio starts its broadcast life by being recorded into a specific format on a storage medium. It is encoded at a high bit rate (approximately 384kb/s) so as to preserve quality, and cataloged and organized in a similar way that we use ID3 tags for all digital files. The DJ at each XM station then selects the track or album of tracks to play for the next 15 to 30 minutes, previews the music, and allows the control system to encode the original source music using the aacPlus Codec.

Each XM channel is handled by an encoder. Each encoder transmits the necessary digital files for each particular station to a multiplexer, where they are combined with the files from all additional XM channels. Once all of XM's channels are sent to the multiplexer, the massive digital stream is modulated onto an RF carrier, and transmitted on XM's section of the S-Band frequency (2332.5 to 2345.0 MHz) to one of XM's three satellites.

From one of the three satellites, the encoded signals are sent back to earth, and the antenna connected to your XM receiver picks up the frequency. Since your receiver will be the only thing decoding this signal, you can rest assured that compared to the many digital transmissions that re-broadcast, re-store and re-encode the signal, the XM signal will never be sliced again.

Where do I need to place my XM Antenna?

The most consistent performance will be realized if the antenna has a 'bird's eye' view of the sky, and isn't generally affected by the directional orientation (North, South, East, West). The XM signal will penetrate some objects (i.e. wooden roof), so experiment with a placement that is both convenient and maximizes performance. Overall, you should expect your XM signal to remain extraordinarily consistent, unaffected by the various stray signals that often effects terrestrial FM.

Be sure to check out our new Internet Radio tuners

XM Radio Tuners of Magnum Dynalab     

  MD 609T XM Radio Tuner


XM Radio Tuner - 609T

Access to over 170 XM radio channels in the USA, and up to 100 channels in Canada, all 100% commercial free.



20 XM radio station presets, with bright 4.2" blue LED screen showcasing all relevant music metadata.



4 tube audio stage featuring our proprietary MD 6922 Reference Cryovalve tubes.



RS232 port and supporting protocols enabling control of the MD 609T from just about any hard-wired device capable of outputting RS232 commands.



Toroidal transformer employed to provide a pure, consistent power supply to all components.



Striking 19" faceplate (also available in 17" faceplate) featuring 2 large tuning knobs, with machined buttons with responsive sensitivity.



External IR remote with complete functionality



Future upgrade possibilities: The digital satellite receiver has been designed in such a way to be replaceable according to any changes to the way in which satellite radio technology evolves over time.



Future upgrade possibilities: The digital satellite receiver has been designed in such a way to be replaceable according to any changes to the way in which satellite radio technology evolves over time.

Internet Radio Tuners

We are mystified by the potential that Internet radio offers, and we are excited about our new line of Internet Radio tuners.

XM Radios

MD-609T XM Radios      

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