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Pictured alongside the Naim two and three-channel amplifiers (that are not included in this listing), the av2 is the component at the bottom of the stack.
A great sounding, powerfully configurable preamp capable of processing and decoding popular Dolby and DTS digital 5.1 surround sound formats (scroll down in this listing for full details from Naim on the supported formats).
This preamp has balanced XLR inputs and outputs that you'd be hard pressed to find anywhere else in this price range.
Working perfectly, and fully tested in our lab.
Includes the preamp, a power cable and the original Naim narcom av remote.
From the Owner's Manual concerning connectivity:
"The av2 has a total of ten audio inputs: six stereo analog and four digital.
The analog inputs are connected through a combination of DIN and phono sockets while two digital inputs are connected through optical “TosLink” sockets and two through coaxial phono sockets.
Analog input sockets ONE and TWO are “versatile” sockets that can be combined to enable the connection of source components that already offer multi-channel outputs - DVD Audio and Super Audio CD for example. When operating in combined mode, eight or six input channels (available on the two DIN sockets) are routed internally direct to the output volume control, bypassing the internal signal decoding. Eight or six channel combined mode is selected during the Input Setup routine described in Section 9.
The input THREE socket also carries a stereo audio output signal. If the av2 is to be integrated into a conventional stereo audio system this input/output socket should be connected either to the system’s “tape monitor circuit” or in the case of a Naim system to the appropriate preamplifier, power supply or power amplifier input socket."
Inputs:. Six stereo analog, two coaxial digital, two optical digital.
Outputs:. Main left and right, surround left and right, centre, extra rear left and right, sub-woofer. Two coaxial digital, one optical digital.
Decode Modes:. Mono, Stereo, Dolby Pro Logic II, Dolby Digital, Dolby Digital Surround EX, DTS Surround and Neo:6.
Mains supply:. 100V. 115V. 230V - 50/60Hz.
Case size (H x W x D):. 2.76" x 17" x 11.85" (70 x 432 x 301mm).
Surround encoding background and technology:
Feature films have carried the multi-channel sound tracks necessary for “surround sound” in some cases since the 1950s. But only since the mid 80’s have the benefits of surround sound been available to domestic “home theatre” consumers. The technology that first enabled four channels of audio to be decoded from the stereo soundtrack of consumer media such as video cassette is Dolby Surround Pro Logic. Since Dolby Surround Pro Logic, and especially following the introduction of digital audio-visual products such as DVD, enhanced encode and decode technologies have been introduced that enable a greater number of higher quality channels of audio to be encoded. With digital encoding techniques such as Dolby Digital and DTS Surround, appropriately encoded feature films, music and even computer games can be reproduced in full- bandwidth surround sound with up to seven audio channels (left, right, centre, surround left, surround right, surround extra, low-frequency effects).
The following few paragraphs provide a short description and explanation of each decode technology and mode available on the av2. Further technical information can be found at www.dolby.com and www.dtsonline.com.
Dolby Surround Pro Logic
Dolby Surround Pro Logic is a matrix decoding process that generates four output signals (left, right, centre, surround) from a Dolby Surround encoded analog stereo input signal. It is built into virtually every home theatre audio system. The nature of Pro Logic decoding constrains the single surround channel to relatively narrow bandwidth.
Dolby Surround Pro Logic II
Dolby Surround Pro Logic II is an improved analog matrix decoding technology that provides improved surround performance on Dolby Surround encoded program material. While earlier surround programme material is fully compatible with Pro Logic II, appropriately encoded soundtracks can take full advantage of its enhancements - which include separate full bandwidth left and right surround channels. Pro Logic II also features two distinct decoding options for “music” and “movie” programme material.
Dolby Digital is a fully digital decoding technology that provides three full bandwidth front channels, two full bandwidth surround channels, and one low-frequency effects channel - a channel scheme known generically as “3/2.1” (or “5.1”). The encoding technique for Dolby Digital, known as Dolby AC-3, has since 1995 been used on many Video Laser Discs and more recently on DVD. Dolby AC-3 encoding can also be found on digital television services. In addition to encoding audio for six channel replay, Dolby AC- 3 incorporates compression techniques that ease audio data storage and transmission demands and can enable, for example, a single DVD to carry a complete movie.
Dolby Digital 2/0
A variation of Dolby Digital 3/2.1 is Dolby Digital 2/0. Dolby Digital 2/0 takes advantage of Dolby AC-3 data compression in order to reduce the data storage demands of stereo programme material. The “2/0” denotes the use of just two main audio channels with no low frequency effects channel. Programme material encoded for a “2.1” (two main channels with one sub-woofer channel) channel scheme is also available and can be handled within Dolby 2/0 decoding.
Dolby Digital Surround EX
The Dolby Digital Surround EX theatre system was co-developed by Dolby Laboratories and Lucasfilm THX, and was first used theatrically for the movie Star Wars: Episode I: The Phantom Menace in 1999. The system uses 5.1-channel Dolby Digital encoding but delivers an additional surround channel by mixing its signal into the left surround and right surround channels using matrix encoding. This additional channel is matrix decoded upon playback and routed to one or more centre rear speaker. Listeners with regular 5.1 channel Dolby Digital systems do not lose the extra surround channel information; it is simply reproduced by the left surround and right surround channels.
DTS Surround is an alternative digital audio encoding format that has become popular with feature film producers and can therefore be found on many DVDs. The first feature film to be DTS encoded was Jurassic Park in 1993. DTS Surround provides a similar 3/2.1 channel scheme to Dolby Digital with the encoding technology also providing data compression. The DTS data compression ratio is lower than that in AC-3 however and it is argued that DTS can provide better audio quality. The downside of any quality improvement over AC-3 is however higher data storage requirements.
DTS-ES (Extended Surround) Matrix is an enhancement of DTS Surround where a seventh channel is matrix encoded into the left and right surround channels (matrix encoding is the class of technology used in Dolby Surround Pro Logic). DTS-ES Matrix provides a 6.1 channel scheme with the extra channel used to reproduce effects located directly behind the listener.
DTS-ES Discrete 6.1
DTS-ES Discrete 6.1 differs from ES Matrix in providing a fully independent seventh audio channel rather than it being matrix encoded into two existing channels. This enhancement provides opportunities for producers and engineers to generate surround effects that would not be otherwise possible.
DTS Neo:6 provides a decoding technique that enables legacy analog or digital stereo programme material to take advantage of contemporary decoding technology and 6.1 channel schemes. Material matrix encoded for four surround channels, or even un- encoded stereo material can be processed by the DTS Neo:6 decoder to generate 3 main channels, 3 surround channels. The low-frequency channel is generated by down-stream filtering.
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PURCHASING FROM SKYFI
This item will be professionally packaged and insured for safe transit to your home.
Please click here for detailed specifics regarding our specialized packing process that separates us from the rest.
If we don’t have the original manufacture's packaging, we use heavy duty double ply corrugated boxes with Instapak expanding foam custom inserts. In many cases this has proven to be better than the original packaging. We also use high quality fiber reinforced tape to seal our packages. Lightweight items will be bubble wrapped and shipped in a high-quality box.
This item is available for pickup in Ridgewood, NJ or Union Square, NYC (with convenient parking in the building).
NJ Residents or anyone picking up without a resale certificate will need to pay NJ Sales Tax.
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WHO WE ARE
SkyFi Audio is a small startup business specializing in the purchase, reconditioning, and reselling of select high-end audio equipment. We only buy equipment the we admire and are passionate about. No mid-fi, no gimmicks, no junk.
Each piece of equipment is cosmetically restored and fully tested in our well-equipped lab by an engineer with 30+ years of experience in the HiFi world. If it does not meet or exceed the original manufactures specifications, it will not be sold. We are very selective about the equipment we purchase, focusing on mostly analog, high-build quality, American, and European built units.
Through our sister company, which is an authorized dealer for McIntosh, Audio Research, Sonus Faber, ClearAudio, Pro-Ject Audio Systems, and Sony ES, we have access to OEM parts, service, and support. If you are local and looking for new equipment from the above-mentioned manufacturers, please drop us a line as we can arrange both sales and professional installation in the tri-state area.
We do not accept or review any offers that do not go through the official Audiogon system. We have too many items for sale and it’s nearly impossible to keep track of offers outside of the official system. Please don’t message, email, or text any offers.
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TRADE IN POLICY
We accept trade-ins of equal or lesser value under certain conditions. Simply ask and let us know the exact model, condition, and the accessories that are included (such as the original box, remote, cables, manual, etc.). We will only consider high-end equipment from mainstream manufacturers such as McIntosh, Mark Levinson, Audio Research, Krell, etc. and will typically pass on displays, projectors, receivers, dated surround processors, and mid-fi equipment of any type. We will offer a fair value for your equipment, but keep in mind we are running a business and will need to be able to resell the equipment at a profit after investing a great deal of time and resources in testing, certifying, repairing, cleaning, and packaging the incoming equipment. If you are looking for top dollar we suggest attempting to sell it directly to an end user on your own.
SELL US YOUR GEAR (Working or Broken)
We will also purchase your used or broken gear and arrange pickup if you are in our local market. Just drop us a note for a quote but be sure to include the condition and what is included.
HOW TO VISIT US
We are currently operating from a residence in Ridgewood, NJ. You are welcome to make an appointment if there is a piece of equipment you would like to see in operation before or after purchase. We have a well-equipped, dedicated listening room with tons of equipment of all makes and models. We are not a store, so please don’t make an appointment if you are just curious as to how a speaker or piece of equipment sounds. In essence, no tire kickers please.
If you are in NYC and cannot make it out to Ridgewood, we can arrange pickup in Union Square (14th Street) after the purchase. You can call or text 646.852.2073 with any questions or to schedule an appointment. We can also arrange to install, calibrate, and tune the gear in your listening room if you are local to the area. This is super useful when purchasing large speakers or heavy amplifiers. It is also great for ensuring your new turntable is setup correctly in its final resting place.