Up for sale is a piece of audio history. It passed audio prior to shipping, but stopped working after shipping. Selling AS IS for parts or repair. It is a preamp only, no amplifiers are included. I dont believe that it has been serviced, and it might need some cap upgrades or other components for best performance. It is in fairly good physical condition for its age, it has some scratches that are visible on the front.

Phase Linear 4000 Stereo Preamplifier Specifications: Type: Stereo Preamplifier Frequency Response: 20Hz to 20kHz Total Harmonic Distortion: 0.25% Gain: 65dB (MM), 15dB (line) Signal To Noise Ratio: 72dB (MM), 83dB (line) Dimensions: 19 Deep x 7 Tall x 10 Wide Weight: 18 lbs. Packaged with the utmost of care, insured and includes tracking number. No P.O. Boxes. Thank you. Listing and template services provided by inkFrog

Tested everything working. There are 2 broken rca jacks. One for tape deck completely broken off and more importantly one of the main output jacks is loose although still working. For that reason and that reson only I am selling AS IS or parts/repair. Also, speaker balance scratchy and needs some deoxit. Some oxidation on volume knob

Measures 20x12x8. Very good condition. Some stains in the interior

Measures 20x12x8. Great condition. small dark spot towards rear some scratching on bottom

Phase Linear Model 4000 PreAmplifier Owners Manual.

PHASE LINEAR MODEL 4000 SERIES 2 PRE-AMPLIFIER. This is an estate find. Powers on. I dont know how to check it out fully. Please feel free to ask questions. Please look at pictures for condition and thanks for looking.

Phase Linear 4000 Autocorrelation Preamplifier Working Condition Quiet operation Very nice overall condition Faceplate is in very nice condition All original controls RCA Input and output sections One RCA connector is broken (minor repair) Original wood chassis Minor surface tarnish / blems Single owner will cared for May require adjustments for improved performance Please review the photos for more detail The unit will be carefully packed to ensure safe shipping Estimated delivery time within the USA is 3 to 7 business days Standard shipping service is US Postal 1st class Shipping is combined when applicable Please feel free to contact us if you require any additional information

Phase Linear 4000 Autocorrelation Preamplifier Working Condition Quiet operation Very nice condition Faceplate is in very nice condition All original controls RCA Input and output sections One RCA connector is broken (minor repair) Original wood chassis Minor surface tarnish / blems Single owner will cared for May require adjustments for improved performance Please review the photos for more detail The unit will be carefully packed to ensure safe shipping Estimated delivery time within the USA is 3 to 7 business days Standard shipping service is US Postal 1st class Shipping is combined when applicable Please feel free to contact us if you require any additional information

Thank you for considering this item! Please Check out our Storehttps://www.ebay.com/str/designtonWe offer combined shipping and discounts for multiple orders. I will ship this item out via within 3 days with a tracking number for confirmationI ship items out EVERY DAY so EXPECT a QUICK delivery!We have a simple 30 day no questions asked return policy. Please feel free to ask any questions you may haveI answer most questions instantly!

The SOLID ALUMINUM 5 ½” HANDLE PAIR for Phase Linear 4000 series II preamplifier and Marantz 20B as pictured. It’s in good condition (NOS). This handle pair will fit many faceplates of Rotel, Pioneer, Nakamichi etc... as well. Be sure to double check its critical dimensions: End to end = 5 ½” (mounting hole to hole = 5”). Note: The Phase linear 4000 series II and Marantz 20B pictures is using as reference only and this selling is final (NO RETURN OR REFUND) Please buy or bid accordingly. Thanks for looking.

Technics SB 4000 Linear Phase Speakers Vintage.. Matched pair. In very good condition for age and only showing very light surface scratches and a very tiny hole in one of the removable fabric covers. please see pictures for condition. Very heavy Beautiful sounding set of very rare speakers, warm detailed analogue sound. Good working order. Please note that this is a UK only auction sorry but no international shipping. Thanks for looking. Can of beans not included, just used for scale.

Preamplificatore Phase Linear 4000. Grande realizzazione del mitico Bob Carver. Perfettamente restaurato e revisionato. Perfetto sotto ogni punto di vista. Doppio ingresso Phono

Vintage Technics SB-4000 Linear Phase Speakers / VGC: They were in very good condition with not much use over the years so I had them improved. Lovely sound quality. Rare and hard to find in this condition.FULLY WORKING ORDER.Each speaker box is covered with carbon-fibre effect 3M Vinyl wrap. The woofer and tweeter metal edges are painted matte black. The rear banana plugs have been replaced with more up-to-date ones for easy wire connection. 4 Brass feet spikes have been mounted to the base of each speaker (for carpet use). *The spikes unscrew leaving the mounting feet, and rubber pads are supplied in case you want the speakers on a desk (stick them to the mounting feet).Each speaker box has an over-power protection reset switch on the back. In case of overpowering them they will cut out until reset using the button. This is a built in safety feature.Both speaker boxes have been wrapped in industrial grade shrink wrap for protection during transport. Both will be packed securely for transport.UK postage included.Sold as-is. No returns, without exception. Speaker dimensions (with mounting feet but not the spikes):H: 57 CM W: 28 CM D: 22 CM Weight = 10KG (pair) Woofer: 20 CM corn type Tweeter: 6 CM corn type Output sound pressure level: 91 dB (@ 1 meter) Crossover frequency: 2,500 MHz Frequency range: 46 Hz - 20 kHz (-10dB) Power handling capacity: 75W Music / 50 W DIN Impedance: 8 ohms

Phase Linear Model 4000 120V Pre Amplifier, sold as seen for spares/repairs Phase Linear Model 4000 120V Pre Amplifier, sold as seen for spares/repairs We love it when things like this turn up! Yes Bob Carver designed products (Phase Linear/Carver/Sunfire) are not the most commercially valuable items and most of what we see on this side of the pond is US voltage, BUT they are always worth a look and listen. From ALIII Dipole Loudspeakers to the M-400t cube amplifiers, they are all interesting design ideas in interesting packages… This example has a few issues and as we are unable to source replacement phono sockets it is being sold as seen for spares or repairs. Phono sockets are not right, some are cracked but we cannot find suitable replacements. Sell as is It has a crackle on RH output we think caused by Q7/8 (HP508). Multiple marks. Manufacturer : Phase Linear Model : Model 4000 120V Serial Number : 6128 Packaging : N/A Accessories Included : N/A Price When New :  Shipping Shipping cost:Please contact us or check listing info. If you are outside the UK you will need a shipping quote BEFORE buying. Delivery time:48 hours Payment We accept the following payment methods: Paypal Credit/Debit Card BACS Please contact us if you have any questions. Service Established in 2003, 2ndhandhifi is the UKs largest stockist of used quality audio equipment. All items are checked before despatch and guaranteed for 30 days for ebay buyers to give you peace of mind that the item will arrive safely and work exactly as per ebay descriiptions. This means that all items described as used will be in good working order but may show minimal cosmetic marks resulting from everyday use. Any more significant cosmetic issues will be highlighted in the listing if present. We accept most payment methods but card payment to our shop is preferred. We use a reputable overnight courier service - items will be despatched next working day for delivery the next working day after that, but you are welcome to collect from our sister shop in Stockton on Tees if you prefer. Check our feedback if you have any doubts about the validity of this auction or us! We are a business so (although most times we do) we cannot always answer emails over the weekend so please try to ask Monday to Friday. Important 1. If there is no buy it now price stated, please dont ask - it is intended to be an auction which will run until its end time. 2. If you are outside the UK mainland please ask us for a shipping quote BEFORE placing a bid or clicking “Buy it Now”. If you dont ask, it means you will accept our quote. We do not cut corners on shipping, we only use reliable shipping companies, and we dont profit from the shipping prices we quote. 3. For any item where there is no original packaging the shipping costs include the cost to package the item to ensure safe delivery. Larger items may be shipped on a pallet - but this usually will be stated in the listing. 4. If you win the auction or buy the item, we expect you to pay and we will issue a non payment against you if you dont. Such auctions/listings cost us time (and therefore money). Requests to cancel will be rejected.

PHASE LINEAR 4000 - Preamplifier High Fidelity Control Console. Like new condition/ used. non smokers house with no kids. single man and an engineer. so you know it was well taken care of. The 4000 Autocorrelation Preamplifier was a collaboration design by Bob Carver and Bill Skinner. It was designed to expand or uncompressed the sonics of recorded material. In audio parlance, it is called dynamic headroom. In the midst of all the knobs and toggles was the four channel balance joystick. Product DescriptionVintage Phase Linear 4000 Autocorrelation PreamplifierNew lower price and no taxThe 4000 Autocorrelation Preamplifier was a collaboration design by Bob Carver and Bill Skinner. It was designed to expand or decompress the sonics of recorded material. In audio parlance, its called dynamic headroom and back in the day was capable of playing back SQ 4 channel encoded vinyls. In the midst of all the knobs and toggles was the four channel balance joystick. This item was designed and made in the USA.This 4000 has the capability of controlling up to six components: a tuner, two tape decks, two turntables and an auxiliary input (see connection diagram below). It also has three switched and three unswitched AC plugs. The Phase Linear 4000 was manufactured from 1973 to 1977 and its still highly sought after today.This item is in great condition and working perfectly. All of our electronics are functionally tested against the published specifications to the extent possible.SpecificationsFrequency response: 20Hz to 20kHzTotal harmonic distortion: 0.25%Gain: 65dB (MM), 15dB (line)Signal to noise ratio: 72dB (MM), 83dB (line)Semiconductors: 45 x transistors, 9 x IC, 57 x diodes, 2 x zener regulators, 2 x LEDDimensions: 19 x 7 x 10 inchesWeight: 18lbs