Heathkit AP-1800

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The Heathkit AP-1800 is an audio preamplifier that was produced in the 1970s and 80s by Heathkit, a well-known maker of electronic kits and equipment. The AP-1800 is a high-quality preamplifier designed to provide exceptional sound performance for audiophiles and enthusiasts. Some features of the AP-1800 include:1. Discrete Component Transistor Circuitry: The AP-1800 utilizes discrete components, such as transistors and resistors, rather than integrated circuits (ICs). Discrete components offer greater accuracy and flexibility in circuit design, leading to improved audio performance.2. Phase Coherent Design: The AP-1800 is designed with phase coherent inputs, ensuring that all audio signals in a stereo system remain in phase with each other. This is particularly important in multi-channel audio systems, where phase issues can lead to reduced audio clarity.3. Dual Mono Construction: The AP-1800 is built as a dual mono preamplifier, which effectively separates the left and right audio channels into completely independent circuits. This construction helps to minimize interference and crosstalk between channels, leading to improved audio clarity and fidelity.4. Input and Output Connections: The AP-1800 provides a wide range of input and output connections, including RCA, XLR, and tape out and in connections. The preamplifier also includes speaker outputs with binding posts.Overall, the Heathkit AP-1800 is a high-quality audio preamplifier that offers exceptional sound performance and advanced features. While it is now a vintage product, many audiophiles and musicians continue to seek out and use the AP-1800 for its exceptional audio quality, craftsmanship, and durability.

Preamp Output: 1.5V
Frequency Response: 20Hz to 20kHz
Distortion: 0.02%
Gain:
Input Sensitivity: 2mV (mm), 0.2mV (mc), 200mV (line)
Signal to Noise Ratio: 75dB (mm), 70dB (mc), 95dB (line)
Line Output:
Dimensions: 19 x 5.22 x 11.25"
Weight:
Year:
Price: USD $399.95