Stereophonic Control Amplifier SpecificationsPower output: 20 watts per channel into 8? (stereo)Frequency response: 10Hz to 80kHzTotal harmonic distortion: 0.3%Damping factor: 30Input sensitivity: 2.5mV (MM), 150mV (line)Dimensions: 330 x 275 x 134mmWeight: 6.2kgYear: 1977 Working condition

Very nice Vintage Harman Kardon Control Amplifier A-401. Works perfectly. Powerful little unit for its size. Heavy at 13lbs. Released to market in 1977. This little amplifier offers 20w of power at less than 0.5% THD, (total harmonic distortion), and is a great example of elegant, understated styling from the late 70s. Its not the most powerful amp, but fits nicely in a room and has that classic hi-fi sound you just cant get with anything new.Specifications. Power output: 20 watts per channel into 8? (stereo). Frequency response: 10Hz to 80kHz. Total harmonic distortion: 0.3%. Damping factor: 30. Input sensitivity: 2.5mV (MM), 150mV, (line).Packed to beat the handlers! (See feedback on my packing audio). Please see other listings for more vintage audio all up for bid starting at 9.99. Lets have some fun and see what this stuffs really worth. All items in great condition!

Harman Kardon A-401 Control Amplifier, with the following services performed:- Recapped- Replaced known unreliable transistors (one of them originally prevented the left channel from working)- Added turn-on muting circuit as per the service manual (without this, the unit would put a lot of DC onto the speakers on power-up)- Cleaned controls- Adjusted idling current

Up for sale is a used vintage Harman Kardon A-401 Control Amplifier The power comes on no further testing

Up for sale is a used vintage Harman Kardon A-401 Control Amplifier The power comes on no further testing

Up for sale is a used vintage Harman Kardon A-401 Control Amplifier For Parts or Repair. It was cleaned inside and out and all controls were cleaned with contact cleaner. It was tested and sound comes out of the right channel only, on both speaker systems 1&2. Also there is a humming noise on both left and right channels on both speaker systems 1&2. This amplifier is being sold for parts or repair only without any return or refund. Please contact me if you have any questions regarding this item. Sorry no international shipping.

Here is a vintage Harman/Kardon A-401 control amplifier. Brushed metal front panel. Powers up. This is as far as I have tested it. Due to its age, I offer no guarantees. Sold as-is. No returns. Shipping cost includes insurance. Condition: Estate find. Powers up (power light illuminates). This is as far as I have tested it. It may need some TLC, it may not. Due to its age, I offer no guarantees. Sold as-is. No returns.

Up for sale is a used vintage Harman Kardon A-401 Control Amplifier It was tested and sound comes out. Not future testing Ask if you have any question .

Harman Kardon A-401 Vintage Control Amplifier Clean Tested Works Great Item is used and does have wear/markings/scratches - please see photos

Harmon & Kardon Control Amplifier Tested Clean Works as it should Power fuse included No stereo fuses included, must provide your own Can be obtained from car parts stores. Volume label on front is half gone see photos Words VCR and Tape are lightly scratched into the right side near function turn knobs Hard to notice unless looking for it closely. Some paint on power cord Small spots of paint on top of Amplifier. See all photos!!! Any questions please ask.

i have a video of it working if you want me to send it to you testing done with pioneer cassette deck and bose speakers i did not open it but if you want to see the inside i can do that and i do have compressed air and can blow it out. the power switch does not light up i assume it is supposed too

For your consideration is a Harman Kardon A-401 Integrated Amplifier. Ive just finished cleaning and refurbishing this amplifier. I also performed one of two service bulletins (one had previously been completed) to eliminate a brief hum and/or transient noise upon powering up the amplifier. All electrolytic capacitors and all transistors on the tone control/pre- amp board and the volume/mode board were replaced. On the amp board I replaced all the electrolytic capacitors, both 2SC458 transistors, and the right channel differential transistors. I left the phono equalization board alone as it has very low noise and sounds great. The main power supply capacitors tested good and are original as well. The switches and pots were cleaned and lubricated with Deox-It. DC offset was checked after refurbish and is 0 +/- 3mv on both channels. Idle bias was set to 20mv, both channels. After cleaning and service was complete I tested all inputs, outputs, and functions. I then used it in my den for several days and it functions and sounds excellent. The Harman Kardon A-401 Integrated Amplifier delivers crisp, powerful stereo sound with good depth and sound stage. I have one of these amplifiers in my collection and it gets used frequently as both my wife and I really enjoy it. Cosmetically this Harman Kardon A-401 is in good condition. There are minor scuffs, scratches, and dings from normal use and handling. Lettering is in good condition except for the word Volume which shows some wear. Please view the pictures closely as they are of the item you will receive. Shipping will be via FedEx Ground or Home Delivery within 3 business days of cleared payment. Insurance is included and a tracking number will be provided. Any questions please send me an eBay message and Ill promptly respond. Thanks for looking!

Enhance your music experience with this Harman Kardon A-401 Integrated Stereo Amplifier. This vintage electronics piece is a rare find and will undoubtedly be a valuable addition to any collection. Designed with advanced features, this amplifier produces exceptional sound quality that is sure to impress both audiophiles and casual music enthusiasts. This model is a top-of-the-line Harman Kardon amplifier, with a sleek design that adds a touch of sophistication to any home audio setup. While we cannot disclose the specific condition, we can assure you that this amplifier has been well-maintained and will perform at its highest potential. Don't miss out on the opportunity to own this exceptional piece of vintage audio equipment. Power output: 20 watts per channel into 8? (stereo) Frequency response: 10Hz to 80kHz Total harmonic distortion: 0.3% Damping factor: 30 Input sensitivity: 2.5mV (MM), 150mV (line) Dimensions: 330 x 275 x 134mm Weight: 6.2kg Year: 1977 Up for sale is Harman Kardon A-401 vintage integrated amplifier. It's not a very common integrated, as far as I have seen. Very good quality sound, especially when matched with high sensitivity speakers, such as my Klipsch Chorus. This amplifier has connections for modern equipment (CD player, iPod, tuner) and for the turntable / record player. I conservatively rated it at 6/10 for the following reasons: two small, but visible scratches on the faceplate (visible from specific angles); I accidentally removed 'aux' sticker from the faceplate while cleaning; top cover has visible scratches. This amplifier is fully working. Specifications: * Power output: 20 watts per channel into 8? (stereo) * Frequency response: 10Hz to 80kHz * Total harmonic distortion: 0.3% * Damping factor: 30 * Input sensitivity: 2.5mV (MM), 150mV (line) * Dimensions: 330 x 275 x 134mm * Weight: 6.2kg * Year: 1977

Normal 0 false false false MicrosoftInternetExplorer4 Here is a good used H/K A-401 amplifier. It is tested and works/sounds great. It is in excellent used condition with minor wear from use. It comes complete in the original box. It still has the original manual, paperwork and packing inserts. Overall a very nice vintage amp. SHIPPING COSTS AND RULES SHIPPING FOR THIS ITEM IN THE CONTINENTAL USA: See shipping and payments tab. I do collect sales tax if you choose local pick up. I ship almost every day of the week, your item will be sent out ASAP. Any requests for how the item is packaged for shipping must be made before payment is sent. Local pick up from my location in Boise is available but you must contact me before payment is sent. Payment must be received within 7 days of the end of the auction, if you need more time please contact me in advance (I reserve the right to sell the item to another person if you do not pay on time). Winners of multiple items can combine shipping to save money. Ebay will send an automated message shortly after you win the auction with payment instructions. PAYMENT RULES AND RETURNS: USA I will only ship to the address that Ebay has on file (NO EXCEPTIONS). If you only have a PO box you can not choose UPS/Fedex for shipping (this rule is a requirement and voids the payment if not followed) . Contact me for PO box shipping if I only have UPS/Fedex shipping option. Shipping to a PO BOX, Alaska or Hawaii may be more (contact me for info). Credit cards are only accepted via Ebay payment. INTERNATIONAL Contact me for shipping cost. I will not put false information or values on customs forms. RETURNS Please contact me before initiating a return. I only accept returns if you contact me within 30 days of receiving the item.

Amplificateur Harman kardon A-401. En parfait état Fonctionne parfaitement Testé

See photos, untested estate unit. I use 90% recycled packaging material when I ship. Any difference in shipping cost will be refunded after I ship.Thanks for supporting my Canadian small business!

Amplificateur Harman kardon A-401. En parfait état Fonctionne parfaitement Testé