You are bidding on a pair of VINTAGE Allison Acoustics MINI-2P Powered Speakers in Good Working condition. These speakers feature a 4 long throw woofer and a 1 dome tweeter in a cast aluminum enclosure with a matte black enamel finish. The crossover is a full LC type operating at 2000 Hz. The built-in amplifier puts out 15 watts per channel with low-frequency equalization to extend its bass response. The controls & connections on the back of the amplifier speaker include: A & B Speaker Volume knobs, a High Filter / Bypass toggle Switch, (R) & (L) Input RCA jacks, remote speaker B Output connectors, Power ON/OFF switch and a 12 volt DC mini Jack receptacle. Note: The label on the back of speaker a states 220v AC 50 Hz but it is fitted with a US 110v Plug and work fine with 110v AC @ 60Hz. Condition (see pictures): These speakers are in good working condition. I connected them to my iPhone and they sounded very good. The grills are not original but they look good on the mini-2Ps. Look at the pictures and judge for yourself, these are in very nice shape. Features: Manufacturer- Allison AcousticsType- Amplified SpeakersModel- Allison Acoustic Mini-2PSerial Number- 1181Material- Cast Aluminum Cabinets, Aluminum mesh grills (not original)Color- Matte BlackWoofer- 4 Long ThrowTweeter- 1 DomeCrossover Type- LC, Quarter-SectionCrossover Frequency- 2,000 HzLow Frequency Performance- -3dB@72 HzEnclosure Type- Closed Box Acoustic SuspensionSensitivity- -10dbmEnclosure Dimensions- 7.3 x 4.6 x 4.4Power Output- 15 Watts per ChannelInput Impedance- 10 K ohmsPower Requirements- 120 volts AC or 12 volts DC, 38 watts

You are bidding on a pair of VINTAGE Allison Acoustics MINI-2P Powered Speakers in Good Working condition. These speakers feature a 4 long throw woofer and a 1 dome tweeter in a cast aluminum enclosure with a matte black enamel finish. The crossover is a full LC type operating at 2000 Hz. The built-in amplifier puts out 15 watts per channel with low-frequency equalization to extend its bass response. The controls & connections on the back of the amplifier speaker include: A & B Speaker Volume knobs, a High Filter / Bypass toggle Switch, (R) & (L) Input RCA jacks, remote speaker B Output connectors, Power ON/OFF switch and a 12 volt DC mini Jack receptacle. Note: The label on the back of speaker a states 220v AC 50 Hz but it is fitted with a US 110v Plug and work fine with 110v AC @ 60Hz. Condition (see pictures): These speakers are in good working condition. I connected them to my iPhone and they sounded very good. The grills are not original but they look good on the mini-2Ps. Look at the pictures and judge for yourself, these are in very nice shape. Features: Manufacturer- Allison AcousticsType- Amplified SpeakersModel- Allison Acoustic Mini-2PSerial Number- 1181Material- Cast Aluminum Cabinets, Aluminum mesh grills (not original)Color- Matte BlackWoofer- 4 Long ThrowTweeter- 1 DomeCrossover Type- LC, Quarter-SectionCrossover Frequency- 2,000 HzLow Frequency Performance- -3dB@72 HzEnclosure Type- Closed Box Acoustic SuspensionSensitivity- -10dbmEnclosure Dimensions- 7.3 x 4.6 x 4.4Power Output- 15 Watts per ChannelInput Impedance- 10 K ohmsPower Requirements- 120 volts AC or 12 volts DC, 38 watts

Selling my pair of used Allison CD 8 speakers. I dont know a lot about them, other than that a person I worked for gave them to me. They are not perfect. The wood has scratches, one of the front grills has a crack, and I believe one of the subwoofers needs to be refoamed (see photo). I recently got a new pair of speakers, so I would like someone else to be able to enjoy them. They sound really nice, but the broken sub does make a crackling sound. Would be perfect for a man cave set up. Willing to accept offers. Trying local pickup for now because they are quite large and heavy.

You are bidding on a pair of VINTAGE Allison Acoustics MINI-2P Powered Speakers in Good Working condition. These speakers feature a 4 long throw woofer and a 1 dome tweeter in a cast aluminum enclosure with a matte black enamel finish. The crossover is a full LC type operating at 2000 Hz. The built-in amplifier puts out 15 watts per channel with low-frequency equalization to extend its bass response. The controls & connections on the back of the amplifier speaker include: A & B Speaker Volume knobs, a High Filter / Bypass toggle Switch, (R) & (L) Input RCA jacks, remote speaker B Output connectors, Power ON/OFF switch and a 12 volt DC mini Jack receptacle. Note: The label on the back of speaker a states 220v AC 50 Hz but it is fitted with a US 110v Plug and work fine with 110v AC @ 60Hz. Condition (see pictures): These speakers are in good working condition. I connected them to my iPhone and they sounded very good. The grills are not original but they look good on the mini-2Ps. Look at the pictures and judge for yourself, these are in very nice shape. Features: Manufacturer- Allison AcousticsType- Amplified SpeakersModel- Allison Acoustic Mini-2PSerial Number- 1181Material- Cast Aluminum Cabinets, Aluminum mesh grills (not original)Color- Matte BlackWoofer- 4 Long ThrowTweeter- 1 DomeCrossover Type- LC, Quarter-SectionCrossover Frequency- 2,000 HzLow Frequency Performance- -3dB@72 HzEnclosure Type- Closed Box Acoustic SuspensionSensitivity- -10dbmEnclosure Dimensions- 7.3 x 4.6 x 4.4Power Output- 15 Watts per ChannelInput Impedance- 10 K ohmsPower Requirements- 120 volts AC or 12 volts DC, 38 watts

You are bidding on a pair of VINTAGE Allison Acoustics MINI-2P Powered Speakers in Good Working condition. These speakers feature a 4 long throw woofer and a 1 dome tweeter in a cast aluminum enclosure with a matte black enamel finish. The crossover is a full LC type operating at 2000 Hz. The built-in amplifier puts out 15 watts per channel with low-frequency equalization to extend its bass response. The controls & connections on the back of the amplifier speaker include: A & B Speaker Volume knobs, a High Filter / Bypass toggle Switch, (R) & (L) Input RCA jacks, remote speaker B Output connectors, Power ON/OFF switch and a 12 volt DC mini Jack receptacle. Note: The label on the back of speaker a states 220v AC 50 Hz but it is fitted with a US 110v Plug and work fine with 110v AC @ 60Hz. Condition (see pictures): These speakers are in good working condition. I connected them to my iPhone and they sounded very good. The grills are not original but they look good on the mini-2Ps. Look at the pictures and judge for yourself, these are in very nice shape. Features: Manufacturer- Allison AcousticsType- Amplified SpeakersModel- Allison Acoustic Mini-2PSerial Number- 1181Material- Cast Aluminum Cabinets, Aluminum mesh grills (not original)Color- Matte BlackWoofer- 4 Long ThrowTweeter- 1 DomeCrossover Type- LC, Quarter-SectionCrossover Frequency- 2,000 HzLow Frequency Performance- -3dB@72 HzEnclosure Type- Closed Box Acoustic SuspensionSensitivity- -10dbmEnclosure Dimensions- 7.3 x 4.6 x 4.4Power Output- 15 Watts per ChannelInput Impedance- 10 K ohmsPower Requirements- 120 volts AC or 12 volts DC, 38 watts

Allison acoustics filter and bass equalizer. The Electronic Subwoofer. This is used and may show minor wear. Has NOT been tested. The power cord is included as shown.

This has NOT BEEN TESTED and is being SOLD AS PARTS OR REPAIR. I am not sure if it will work or not. It has some scratches scuffs and marks. See pictures for better idea of condition. Please check out my other items, Thanks

This is a 220/240V unit. I tried using it with an external transformer and it blew a fuse in the amp and did some other damage. THIS IS A NON-WORKING UNIT FOR PARTS OR REPAIR ONLY.

This has NOT BEEN TESTED and is being SOLD AS PARTS OR REPAIR. I am not sure if it will work or not. It has some scratches scuffs and marks. See pictures for better idea of condition. Please check out my other items, Thanks

Allison acoustics filter and bass equalizer. The Electronic Subwoofer. This is used and may show minor wear. Has NOT been tested. The power cord is included as shown.

This product is an Allison Acoustics Nipple Dome tweeter with its original mesh coverThis was removed from a AL120 SpeakerThe diameter is just shy of 4 Fits various vintage Allison acoustics speakersBecause of the super fine wires used in Allison Speakers this couldbe repaired by someone more knowledgeable than meTHIS SPEAKER DOES NOT WORK AND IS IN NEED OF REPAIR I ship USPS Ground Advantage so you should get your tweeter as soon as possible This will be carefully packaged also

This product is an Allison Acoustics Nipple Dome tweeter with its original mesh coverThis was removed from a AL120 SpeakerThe diameter is just shy of 4 Fits various vintage Allison acoustics speakersBecause of the super fine wires used in Allison Speakers this couldbe repaired by someone more knowledgeable than meTHIS SPEAKER DOES NOT WORK AND IS IN NEED OF REPAIR I ship USPS Ground Advantage so you should get your tweeter as soon as possible This will be carefully packaged also

Just taken on trade. This is a rare device designed to be used with Allison speakers. It accentuates the bass to give the impression of deeper bass from his smaller speakers. He claimed it can be used w other brands as well. There are augmentation frequencies at 31, 41 and 45 hz. It has been thoroughly tested.

This product is an Allison Acoustics Nipple Dome tweeter with its original mesh coverThis was removed from a AL120 Speaker and was fully tested before removalThis auction is for only one tweeter (the one you see in the pictures)The diameter is just shy of 4 Fits various vintage Allison acoustics speakers.Measured the Ohm rating it measured 2.8 ohmsIt works Great! I ship USPS Ground Advantage so you should get your tweeter as soon as possible This will be carefully packaged also

Allison acoustics filter and bass equalizer. The Electronic Subwoofer. This is used and may show minor wear. Has NOT been tested. The power cord is included as shown.

220-240 Volt versionNOT suitable for North America I bought this, not knowing it was for 220/240 Volt systems. It has a standard North American type plug and 220-240V is in very small print. It did not work right in my system so I replaced all of the old capacitors. Still not right so I took it to a professional technician who discovered the fact that this is designed for 220-240 Volts. So if you are a an audiophile who lives in a country where the mains are 220-240Volts, 50-60Hz, this may be for you. Designed for Allison speakers but also appropriate for virtually any Acoustic Suspension speakers that could use a little bass boost. According to Allison, The equalization curves provided in the ESW are unlike those obtainable from conventional tone controls or general-purpose equalizers. Equalization is carried down to 20 Hz. . . . Only closed-box systems have response that falls off at 12dB per octave below resonance, and so only they are correctly equalized by the ESW. And only closed-box systems maintain control of the woofer at very low frequencies.

This product is an Allison Acoustics dome tweeter with its original mesh cover. The diameter is just shy of 4 Fits various vintage Allison acoustics speakers. Tinsel was repaired at one time however it works great. Reads 4ohms

Allison acoustics filter and bass equalizer. The Electronic Subwoofer. This is used and may show minor wear. Has NOT been tested. The power cord is included as shown.

Nice clean tweeter and has clear undistorted sound

Very rare Allison acoustics AL105 P Loudspeakers exceptional condition, beautiful Oak colour. Beautiful sounding speakers with very little use from the legendary Allison Acoustics factory in USA. Probably the best around on the market at this time. As part of a recent service /refurbishment ( Summer 2022 ) the following work was carried out to bring the speakers up to the highest Allison standards. Driver speakers suspension foam seals renewedNew spiders installed and voice coil magnet seats cleaned and reset to maintain the high standards set by Allison acoustics.New tweeter grills.New carbon steel screws fitted throughout. Just completed 100 hours of running in time, the longer I play them the better they sound. Will be sent by 24 hour fully insured delivery in a secure box with bubble wrap and foam. But before I tell you about Allison I need to explain a little about bass cancellation. A room can be pretty effectively treated for mid and high frequencies because their shorter wavelengths rarely cause unsolvable phase problems but the really big problems are below 500Hz where the bass is. Bass is omnidirectional; it travels in all directions. Not only towards the listener, but also towards rear and side-walls. When this bass bounces off the walls and is reflected back towards the listener, it has travelled a longer distance than the directly radiated bass. In the best case (when the speaker is so close to the wall that the reflected wave is still more or less in step with the original sound) this muffles the sound, destroys timing, makes bass pitch less clear or makes the bass overall just a bit woolly. More often (when the distance to the walls is great enough to delay the reflected sound so much that it is effectively arriving half a wavelength later) it causes cancellation at certain frequencies, which more often than not results in large dips in the mid bass. You can probably imagine what happens if this problem is doubled if both rear and side-walls cause the same problem. At the same time there is the real possibility that one wall causes cancelling while the other wall does the opposite, which is to amplify the bass at certain other frequencies. The end result is a long shot from the wishful thinking that is the flat frequency curve. The theoretically best place for a bass speaker is smack in the corner. This way, all bass, both direct and reflected, is traveling the same distance and is always in phase. This is why we place subwoofers in corners. The bass is amplified acoustically and couples best with the room. Of course you can’t just shove any speaker in the corners of your room because the acoustical amplification will not only keep the bass in phase; it will also hugely colour the sound higher up the frequency spectrum. It works with subwoofers because they are filtered to cut off all frequencies above, say, 100Hz. This is so low that it is mostly below the room resonance and the result will be powerful full bass. Normal speakers also have to portray the midrange and high frequencies. These two are hugely compromised when a speaker is placed near a wall.In come the Allison speakers. They have been designed from the get-go to be placed in corners. Their frequency curve has been tailored just so that they sound neutral when they are placed in the corners of a room. This is not an entirely new idea but these days, in the current loudspeaker assortment, it is unique. Have you ever noticed that the amount of bass differs enormously depending on where you stand in the room? The cool thing about the Allison speakers is that the bass sounds perfect just about anywhere in the room. OverviewThe AL 105 feature room matching, patented Stabilized Radiation Loading, and Convex Diaphragm Dispersion. An acoustically suspended 6.5 woofer keeps the bass lean and tight, while a 1 Mylar dome tweeter provides the crystal clear highs. Highlights6.5 paper cone woofer with foam surround1 Mylar dome tweeterFaux granite baffle finishSealed cabinet constructionThe AL 105 feature room matching, patented Stabilized Radiation Loading, and Convex Diaphragm Dispersion. An acoustically suspended 6.5 woofer keeps the bass lean and tight, while a 1 Mylar dome tweeter provides the crystal clear highs.Specifications:*Power handling: 150 watts max*Impedance: 6 ohms*Frequency response: 78-20,000 Hz*Sensitivity: 90 dB 2.83V/1m*Dimensions: Height 14 3/4 inches or 38cms Width 9 1/2 or 24cms Depth 7 1/2 or 19cms Above dimensions are approximations

Vintage Allison Acoustics The Electronic Subwoofer, audio bandpass filter and bass equalizer. For use with Allison speaker systems. Pre-owned, from a high-end audio studio / collectors estate.

RDL Acoustics F-1 Speakers. Lightly used speakers in excellent condition. Designed by late master builder Roy Allison. Includes original brochure & set up instructions

RDL Acoustics F-1 Speakers. Lightly used speakers in excellent condition. Designed by late master builder Roy Allison. Includes original brochure & set up instructions

RDL Acoustics F-1 Speakers. Lightly used speakers in excellent condition. Designed by late master builder Roy Allison. Includes original brochure & set up instructions