Parasound
Parasound JCA100 Tribute Class A Monoblock Amplifiers
Parasound JCA100 Tribute Class A Monoblock Amplifiers
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Description
Parasound's JCA100 Tribute Amplifier is a limited-edition power amplifier built as a tribute to John Curl’s career. Only 100 pairs are hand‑assembled in the U.S., with a portion of proceeds supporting John Curl and scholarship seedings for future repair techs. Combining refined high-end performance with robust musicality, designed for listeners who demand clarity, warmth, and disciplined power in one elegant package. Each monoblock runs pure Class‑A to 100 W into 8 Ω (with 200 W into 4 Ω on tap), and offers both balanced XLR and RCA inputs. You also get a 29 dB / 23 dB gain switch, heavy binding posts, and Normal/Low bias options (Normal = full 100 W Class‑A). In short: serious artistry, serious power.
PRICED PER PAIR.
Features & Specifications
Power Output (Class A)*
100 watts @ 8 Ω
Power Output (Maximum)*
100 watts @ 8 Ω
200 watts @ 4 Ω
Slew Rate > 130 volts per microsecond
Frequency Response
2 Hz – 120 kHz, +0/-2 dB
20 Hz – 20 kHz, +0/-0.25 dB
Total Harmonic Distortion (THD)
< 0.15 % at full power
< 0.02 % at typical listening levels
IM Distortion < 0.03 %
TIM Unmeasurable
Input Impedance
Unbalanced: 50 kΩ
Balanced: 100 kΩ, (50 kΩ per leg)
S/N Ratio, inputs shorted
>120 dB, IHF A-weighted, bias set to Low
>118 dB, IHF A-weighted, bias set to High
>110 dB, Unweighted, bias set to Low
>109 dB, Unweighted, bias set to High
Total Gain
29 dB (Gain switch set to normal),
23 dB (Gain switch set to low)
Input Sensitivity**
Unbalanced: 1 V
Balanced: 1 V per leg
DC Trigger Requirements +9 Vdc to +12 Vdc, 5 mA
Audio Trigger Requirement 2.5 mV – 10 mV
XLR Pin Identification
1 = Ground
2 = Positive
3 = Negative
Dimensions
Width: 17.625″ (448 mm)
Height: 7.75″ (197 mm), without feet: 7.125″ (181 mm)
Depth: 20″ (508 mm), with cables: 21.5″ (546 mm)
Weight
Net: 83 lbs. (37.6 kg), Shipping: 100 lbs. (45.4 kg)
Power Requirements
Standby: <1 Watt
Idle (bias set to low): 205 Watts
Idle (bias set to high): 230 Watts
Maximum: 250 Watts
*Power measurements are with 120 VAC: 0.15% THD, RMS continuous power, full audio band (20 Hz – 20 kHz)
**28.28 V Output into 8Ω, gain switch set to normal
