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Until recenty my desktop computer has always shared a room with a Hi-Fi setup so there has never been a need for using decent speakers with the computer. When the desktop computer was moved into it's own room with no HiFi I quickly realized that good speakers were now required for decent quality music playback. I had been using some low cost Radio Shack speakers with an inexpensive Tripath based amplifier and I was really itching for an upgrade.

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The speakers would be used primarily for background music while working on the computer and also for watching videos, gaming and some recording. Over the past several years I have grown quite fond of the sound from the various Fostex fullrange speaker drivers. A fullrange driver can be quite appealing as it offers point source sound with no crossover to mess with the phase so you also get great imaging.

The lack of a crossover reduces the material costs and also greatly simplifies the design and construction of the speaker. The bass reflex loudspeaker enclosure has a volume of 6 Liters L and is tuned to 95 Hz. A bass reflex ported speaker enclosure improves the low frequency response of the loudspeaker system by transmitting the energy from the rear diaphragm of the driver and the rear baffle through a tuned port to the listener.

These phase-inverting type of loudspeaker enclosures are most commonly referred to as vented, ported or bass-reflex. The interior of the speaker boxes are typically lined with a thick damping material or stuffed with loose synthetic or wool fill. The fill is used to dampen the rear wave from the driver and minimize standing waves and reflections within the enclosure.

The bass reflex type of loudspeaker enclosure is among the most common type used as it lends itself well to small size and reasonable bass output.

The loudspeaker box details are from the Fostex FEEn datasheet and recommended enclosure plans and are shown below with some additional build notes.

Fostex Fe103-sol

The datasheet notes the enclosure volume as 6 L and tuned to 95 Hz. From the dimensions the gross volume is calculated to be 6. The frequency response simulation was completed using WinISD speaker designing software. The orange line on the plot shows the calculated frequency response using the Thiele-Small parameters from the datasheet. The blue line shows the calculated response using the actual measured parameters of the drivers.

fostex 103 sol

Despite the variation in the parameters, the net effect on the actual response is rather small. In the response plots there is a 2 dB hump around Hz.

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I tend to find that I prefer this slightly warmer bass response as the speakers sound more punchy and it also helps balance the forward mid-range. The loudspeaker cabinets were built using 15 mm thick Baltic birch multiplex plywood. Baltic birch plywood is dense and strong, made up from 11 ply sheets. Baltic birch plywood is often amongst the most sought-after wood for producing loudspeaker cabinets.

Part of the reason being that Birch has a natural resonance that peaks in the high and low frequencies, which are typically the most difficult for loudspeakers to reproduce. The speaker connection is a DB input cup located on the rear baffle. Be sure to use the supplied gasket and seal the speaker terminal input cup so there are no air leaks from the enclosure.

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For best results, it is important to properly dampen the speaker cabinet. Acousta-Stuf fiber fill is used inside the speaker cabinet to dampen the rear wave from the driver and to reduce standing waves and internal reflections.

Fluff up about to g 4 to 6 oz of Acousta-Stuf fiber and fill the speaker box. Try and keep the fill material away from the immediate rear of the speaker driver.Radio Shack Realistic A cult following believe these tiny speakers to have excellent reproduction capabilities. Their presence and clarity are unmatched even by expensive three-way systems.

So, why is this? I think it has to do with a physical characteristic called the sound envelope. One of the factors of sound reproduction speakers with multiple drivers is the accurate mixing of frequencies of sound.

Most speakers rely upon two or more drivers to extend the high and lows frequency range and the loud and softs dynamic range. Accurate reproduction then becomes an issue because each speaker producing the particular frequency range must be mixed with the other speaker ranges.

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This becomes a problem because of the limitations of the placement of the speakers. The sound sources emanating from two or more different points can cause a mismatch or cancellation of sounds. Though this is really not noticeable most of the time, the seasoned connoisseur listener can become irritated by this. The FE speaker produces all of the sound from one point thereby accurately reproducing the music.

Fostex FE103-Sol Owner's Manual

However, these tiny speakers lack considerable dynamic range including heart thumping bass that a lot of people seem to crave. Introduced inthe Bose speakers attempted to address the dynamic range issue by employing nine 4-inch full range speakers. To clarify the mid and high end, there was an additional 4 inch speaker facing forward. Why the FEs sounded so good at a low level listening was because the sound was directed towards the listener from one point and was accurately reproduced by the very low moving mass driver.

But again, these speakers lacked a lot of dynamic range, especially on the low end. Today with all the new materials, this has become less of an issue with single driver speakers than it was in the s when the paper cone FE was introduced. Never the less, the FE still does sound really good at low level near-field listening, especially in tiny limited-space dwellings. Fostex PE. The FE has garnered quite a following since they were released by Radio Shack in the s.

There have probably been millions of them that have been sold worldwide under a variety of manufacturing labels. These I use in the bedroom. Fostex FESol 50th Anniversary. Specifications: 10 cm cone shape full range speaker Impedance: 8 ohms Freq. My first experience was when I was 17 in when I purchased a pair of used Solos from Radio Shack. These I remember as sounding rather good. Considering their size, they had remarkable bass.

Rutcho's Audio Page dedicated to Hi-End Audio Systems Fullrange Speakers Tube Amplifiers

Foster 10T3 in later Solo s. Hoping to capture a bit of my youth, I did recently purchase a set of Realistic Solos on eBay, but they sounded rather bad. When I opened them up, I discovered why. Someone had goobed some stuff on the surround which dried up.Features include a unique Hyperbolic Paraboloid shell diaphragm, UDR tangential edge damping and ES cone manufactured from banana plant fiber.

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This all helps to produce a smooth and detailed sound. This horn produces bass response that is astonishing for such a small speaker. All other employees are on paid leave at this time. We are filling orders and shipping times a week. We will keep you updated on the status of your order and provide tracking information when your order ships.

Please contact us by email info madisound. Login Register. Interconnects Power Cables Speaker Wire. Click to enlarge. The selected item is out of stock, please select a different item or combination. E-mail to a friend Please complete this form.

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All fields are required. Your name. Your email address. Your friend's name. Your friend's email. Comment on Facebook. Product Reviews Login or Register to write a review. Amazing driver Using as a replacement for original Thiel CS3.

Fostex FE108EZ 4" Full Range Sigma Series

Just installed today, and even though they need some time to settle and break in, I am beyond pleased.First impressions are rather positive. The drivers are running without any notch filter correction, so directly coupled through Belden speaker cable with the amplifier. Sure they need some break-in time to develop and currently the upper midrange is a bit more pronounced but I expected they will settle down.

There is definitely more detail, wider and deeper soundstage, bass is fast and very well articulated. Hi Dimitar, first off all a big congratulation to your homepage, and especially to your report of the loudspeakers with Fostex Fe SOL.

I think we both have had the same idea. I am the proud owner of a pair of this speakers. Right now I am building the enclosure by my self with help from a frind who is carpenter. I can use his knowledge and gear. So many pieces of wood. It seems it will not ending. At the moment I am searching for the Belden cable. Where can I buy it?

I just need 5 meters. Hi Gerhard, thank you for the kind words and sorry for the delay! Yes Belden is hard to find here so I ordered it from Japan. It took some time until it reached the old Europe but hey, it was worth waiting.

I ordered it back in the days from amazon but now I see that on ebay there are also few offers. Some people claim that there is a difference between Belden produced in Japan and in USA, but I think soundwise could not be so different. I would also advise you to use threaded inserts for mounting the drivers and to tighten the screws moderately and even loose.

If you have screwdriver with torque control, set it to the lowest torque, screw the bolts and listen before applying more force. Good luck with the speakers project! Hi Dimitar, thank you for answering! I ordered the Belden today. I let you know when the Speakers are finnished. Best Gerhard. Your email address will not be published. The Sigma type has only 90 millimeters magnet.

I will let you know when the speakers are finished. Best Gerhard from southernGermany. Leave a Reply Cancel reply Your email address will not be published. Previous Previous post: Desert Wall Audio. Next Next post: Belden microphone cable interconnects a la Dominique.Your question may be answered by sellers, manufacturers, or customers who purchased this item, who are all part of the Amazon community.

Please make sure that you are posting in the form of a question. Please enter a question. FE series banana pulp cone 4" full range speaker. The speaker works well in a ported enclosure or a folded horn enclosure. The frequency response is 80Hz to 18,Hz.

Sensitivity is 89dB. Skip to main content. Currently unavailable. We don't know when or if this item will be back in stock. Have one to sell? Sell on Amazon. Image Unavailable Image not available for Color:. ES banana pulp paper cone Cloth surround stamped steel frame mm frame 8 ohm, 89dB.

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fostex 103 sol

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New cone paper is based on vigorously beaten kenaf fiber. Mixing long and short fibers of non-wood pulp maintains appropriate The acclaimed Fostex TH headphones have been given another stellar review, this time by renowned publication Hi-Fi Choice Fostex are aware that certain online sellers have been advertising Fostex products with extremely low prices. These prices bring you to their website but, when ordered, the products are not in stock.

Fostex products are sold through our appointed distributor in each country who ships to their authorized retailers with proper warranty and after-sales service and care. Welcome to Fostex International Product information and news from one of the world's premier audio manufacturing companies.

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fostex 103 sol

New FE-NV series. Beware Of Extremely Low Prices Fostex are aware that certain online sellers have been advertising Fostex products with extremely low prices. Read More. Unauthorized Online Retailers Fostex products are sold through our appointed distributor in each country who ships to their authorized retailers with proper warranty and after-sales service and care.

Fostex Worldwide Distributors. Latest News. In accordance with our policy of continuous development, we reserve the right to change specifications without notice.

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OK more info.Features include a unique Hyperbolic Paraboloid shell diaphragm, UDR tangential edge damping and ES cone manufactured from banana plant fiber. This all helps to produce a smooth and detailed sound. This horn produces bass response that is astonishing for such a small speaker. All other employees are on paid leave at this time. We are filling orders and shipping times a week. We will keep you updated on the status of your order and provide tracking information when your order ships.

Please contact us by email info madisound. Login Register. Interconnects Power Cables Speaker Wire. Click to enlarge. The selected item is out of stock, please select a different item or combination. E-mail to a friend Please complete this form. All fields are required.

Your name. Your email address. Your friend's name. Your friend's email.

fostex 103 sol

Comment on Facebook. Product Reviews Login or Register to write a review. Amazing driver Using as a replacement for original Thiel CS3. Just installed today, and even though they need some time to settle and break in, I am beyond pleased.