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Now that I have my Mac Mini set up to deliver my whole iTunes library to my listening room through Airtunes with Sony PSP remote control, I needed to rewire my hi-fi components. The goal: de

According to USFDA, a combination product is one composed of any combination of a drug and device; biological product and device; drug and biological product

liver the digital Airtunes signal through the best DAC in the path and passing the analog signal cleanly through to my loudspeakers. I have no budget, so I must only use components I already

; or drug, device, and biological product and fixed dose combination would include two or more combinations of drug.

Examples of combination products may in

own.

I also wanted to test how much I could combat the compressed audio feed’s nasties in the analog realm. My weapons: Taddeo Digital Antidote II and Rogue Audio Magnum 99 Preamp. One of t

lude drug-coated devices, drugs packaged with delivery devices in medical kits, and drugs and devices packaged separately but intended to be used together.

ese components won the battle and the other almost lost the whole war.

Airport Express DAC: Stereophile has taught us that the Airport Express’s internal DAC is to be avoided in a hi-fi set

here is enormous increase in the number of combination products entering the market in the recent years. Combination products have proven advantages but fixe

up. To successfully use an Airport Express in your signal path you must use its digital optical output feeding an external DAC. The Airport Express outputs a digital signal through the same

d dose combinations are still in the process of convincing regulatory authority on their advantages over the single ingredient formulations.

Combination pro

ini jack port as analog. I just needed this mini-jack to optical adapter from Parts Express.

Digital Optical cable: My optical cable collection is the most neglected cable category in my ho

ucts have become life saving products for the pharmaceutical companies who doesn’t have many innovative molecules in their product pipeline and have been inc

e theater set up. I’ve read many articles and books (like Audio/Video Cable Installer’s Pocket Guide) lauding the optical cable. Digital coax is universally considered a superior connection—

easingly used in the product life cycle management. Even the companies having product patents are trying to extend their product life cycle through the combi

jitter reduction (or least amount of addition), and more stable connectors. So the best optical cable I have is not from a !33t boutique manufacturer but from Best Buy’s favorite: Monster Ca

nation products and maximize the revenues. But the companies involved in this practice are overlooking that they are burdening the patients both economically

le. I’m sure its price surpassed its quality.

With the mini jack adapter clicked in place I insert it into the Airport Express and then snake it across to my Onkyo’s Digital Optical Input 3

and physically. They need to rightly judge the benefits of the combination products and they have to even look at the risks involved when combining the produ

(formerly home to Dish HD STB audio output, soon to be sent back to Dish/AT&T for personal budget cuts).

Onkyo DAC and analog passthrough/output: It took me a couple tries to figure out the

ts. Some of the combination products were well accepted by physicians while others suffered. Companies involved in development of combination products are fi

analog output from my Onkyo AV receiver the Airport Express feeds. My initial attempts pass the digital signal out through an analog out failed. I had to reference the manual to find out tha

ding difficulty in defining their combination products and facing various challenges from selecting a combination to marketing it.

Following aspects would a

you could not pass a digital only signal to either the analog record out or to Zone 2. I split the Onkyo’s preamp out to deliver the Onkyo DAC signal to my Rogue preamp. One pair of interco

dd to the challenges in developing combination products:

Which markets to tap where the combination products can do fairly well?
Which combination prod

nects plugged into the Tape Input while the other remained in the AUX input (with the Rogue’s home theater bypass the AUX input is wired to bypass (duh) the Rogue’s tube gain and output stag

cts are meaningful and rational?
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin

s). (I hope the Monster Turbine Y Adapters I use to split the preamp out are as transparent as advertised, a small bit of metal and teflon shouldn’t make too much difference, right?)

Proble

tions increase the patient compliance?
What would be the developing cost?
How to tackle the risks encountered during combination product developmen

ms with Taddeo Digital Antidote 2: I love my TDA 2 for CD playback. I thought for sure they could make compressed digital audio just as sweet as CD. I was wrong. Airtunes through the TDA 2 s

t?

As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel

unded compressed, congested, boomy, splashy, muted and just super awful. Since this was the way I first wired the rig I was quick to blame the Airport Express and compressed audio delivery.

ping new procedures for reviewing their safety, efficacy and quality.

Professional from academic institutions, pharmaceutical industries, health care indust

almost gave up. Always suspicious that I’m doing something idiotic that I think is genius I took the TDA 2 out of the path. Someone just removed the thick veil covering the music.

Gain and

y and representatives from various regulatory agencies are working out to design the regulatory requirements for manufacture and sale of combination products

Volume Control: When you attenuate digital signals you lose bits along with decibels. I wanted the cleanest signal out of the Onkyo while using the Rogue’s normal volume range. To achieve th

.

As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de

s I raised the Onkyo’s volume to its reference, 0 db. I kept the Rogue’s gain at the middle setting. This combo gave me manageable volume control on the Rogue with a minimal loss of bit reso

elopment. They need to be wiser in analyzing the market trends and the regulatory requirements.

Companies that provide selfless information through particip

ution.

With all my wiring (and non-wiring) in place I was finally ready to sit in my listening chair and enjoy any song in my iTunes catalog.

Next: Listening tests and family dance parties

tion in industry events and feedback to regulatory authorities would be able to face the challenges and will be successful in developing combination products

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Ring tones are audio files that can be downloaded and played on mobile phone handsets to signify an incoming call. A simple concept that is implemented in all the handsets for ensuring their functionality!

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