Grimm Audio PA1 Monoblock Power Amplifier (pair)
type: Product
description: Grimm Audio PA1 Monoblock Power Amplifier Wide-bandwidth class-AB circuitry, 200 W into 4 ohms, and exceptionally low dynamic distortion The Grimm Audio PA1 is a compact monoblock power amplifier designed to minimize forms of dynamic distortion that conventional measurements can overlook. Its fully symmetrical class-AB circuit delivers more than 150 W into 8 ohms and more than 200 W into 4 ohms, with the current capability and low output impedance required to maintain control over demanding loudspeakers. The PA1’s output stage is an evolution of a circuit developed by the late Henk ten Pierick in 1985. Its name stands for “Pierick Amp.” The design uses 96 small, fast power transistors mounted on an aluminum circuit board that provides extremely close thermal coupling between the output devices and their driver circuit. This arrangement maintains a stable operating point as loudspeaker current and transistor temperature change, minimizing residual crossover distortion and other errors that vary with the music signal. Designed for Low Dynamic Distortion Dedicated circuit techniques, including feed-forward correction, reduce phase modulation throughout the PA1’s power and signal stages. Grimm Audio then applies a carefully designed second-order feedback loop to address the small amount of distortion that remains. The result is a measured total harmonic distortion of less than 0.0001% and a damping factor greater than 800 into 8 ohms. The input signal path contains no series coupling capacitors, while multilayer circuit boards keep critical signal paths short. The protection system is designed without placing relay contacts in series with the amplified output signal. A large Amplimo toroidal transformer and 90,000 µF of power-supply capacitance provide ample current, while separate local regulation isolates the driver and feedback circuitry from changes in loudspeaker demand. Flexible Gain and Automatic Operation The PA1 provides balanced XLR and unbalanced RCA inputs, …
brand: Grimm Audio
sku: GA-PA1
additional property: Title
  type: PropertyValue
  value: Default Title
offers: AggregateOffer
  low price: 26500.00
  high price: 26500.00
  price currency: USD
  offer count: 1
  offers: Offer
    price: 26500.00
    price currency: USD
    availability: https://schema.org/InStock
    item condition: https://schema.org/NewCondition
    shipping details: OfferShippingDetails
    sku: GA-PA1

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