Description: *please ask all questions before bidding, The shipping estimate is for one unit, the bidder has to wait for my invoice to pay for both units shipping cost.* Legendary Krell KMA 100 Class A Vintage Mono x2 Amplifier in original BOX. This monaural power amplifier was developed based on the KSA-100 to further explore its potential. The basic circuit system is inherited almost as it is from the KSA-100, a stereo unit. Pure A-Class operation is adopted, which in principle does not cause switching distortion or crossover distortion. Pure complimentary service circuit with perfect symmetrical operation is adopted in the circuit structure. For example, not only the simple amount of harmonic distortion components, but also the appearance of the distortion mode, which has a large effect on audibility, is taken into consideration when selecting the circuit. In addition, NFB is limited to 15 dB or less, and dynamic characteristics are emphasized so that dynamic distortion does not occur. In the power block, heat radiation fins and quiet cooling fans are combined, and heat generation in pure A class operation is coped with and thermal distortion is suppressed by strict temperature control of 75 to 80 degrees Celsius. The power supply unit has a larger capacity than that of the KSA-100 in the space obtained by monaural conversion. It uses two separate power supply systems for the pre-driver stage and output stage. The power supply for the output stage is equipped with a 160,000 μ F capacitor, which is twice the size of the stereo KSA-100, and a 1.1 kW-class large toroidal transformer with excellent regulation. Equipped with a terminal for BTL connection, BTL drive using two KMA-100 units for one channel is possible. The KMA-100 can produce almost four times the output power, as calculated, while most amplifiers can produce only about three times the output power when connected to a BTL KMA-100 Introduced:1987 Category:Amplifiers & Receivers > Solid state Notes:100w mono pr, class A, 152 lbs Retail Price:$6,000.00 in 1987 Class-A Power: • 100 Watts at 8 Ohms • 200 Watts at 4 Ohms • 400 Watts at 2 Ohms • 800 Watts at 1 Ohm • 1200 Watts at 0.5 Ohm (!!) Tested and works as it should. Has couple minor nicks and a noticeable scratch on left side of top panel on one amp please see the pics for details, overall its in great condition. One of the power switch light is out.
Price: 4250 USD
Location: Ridgefield, New Jersey
End Time: 2024-02-10T00:56:37.000Z
Shipping Cost: 0 USD
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Item Specifics
All returns accepted: ReturnsNotAccepted
Brand: krell
Type: Power Amplifier
Custom Bundle: No
Model: KSA 100
Country/Region of Manufacture: United States
Modified Item: No
