Parasound HCA-2200

Data[edit]

General

   * Manufacturer: Parasound
   * Model: HCA2200
   * Year of manufacture: 1992
   * Made in: USA/Taiwan
   * Color: Black anodized
   * Type: Stereo bridgeable, Analog
   * Remote control: No
   * Power consumption: At nominal load approx. 1000W
   * Dimensions: 19" rack, 4 U
   * Weight: approx. 38kg
   * Original price approx.: 3850DM

Connections

   * Number of inputs:
   ** 100kOhm RCA, shorting jumper in XLR input PIN1-3 is required when used.
   200kOhm XLR balanced
   ** Signal ground hard grounded, no ground lift
   * Number of outputs:
   ** One output per channel via screw terminals

Technical Data

   * Continuous power 20Hz...20kHz, <0,05% Gesamtklirr
   ** 8 Ohm: 2x250W
   ** 4 Ohm: 2x385W
   ** 2 Ohm: 2x385W (thermische Grenze bei Sinus-Dauerton an 4 Ohm unter Laborbedingungen)
   ** Im Brückenbetrieb ensprechend höhere Leistung bei doppelter Impedanz.
   * Gesamtklirrfaktor: 0,05% bei Nennlast, 0,0009% bei typischen Pegeln
   * Dämpfungsfaktor: Werksangabe: >1000@20Hz. measured: 1300@20Hz, decreasing to 150 at 45kHz
   * Frequency response: 2Hz...95kHz +0/-1.5dB, 2Hz limited by DC servo.
   * Signal-to-noise ratio: >114dB IHF-A, inputs short-circuited
   * Stereo channel separation: 84dB@1kHz, 74dB@20kHz

Special Features

   * DC Servo, an integrating OP at the input controls the DC offset at the output to zero
   * 2x1,2kVA toroidal transformer
   * 4x 25.000µF filter capacitors Richey
   * Componentry 
   ** Input stage: AD712 for balancing
   ** Driver stage: 2SK405/2SJ115
   ** Output stage: 2SC3263/2SA1294, 7 pairs per channel!
   * Inrush current limiter by means of thermistor at mains input
   * Protection circuit against overheating, overcurrent as well as DC voltage at the output</0,05%>