Monoblock Details
The JD3000A built in a sturdy constructed chassis comes complete with power, punch, and delicacy. The 211 tube was selected as the main power output because of its long life and value price as an industrial heating tube (10,000 hours and $60) and sound quality since its alter ego is as a singe ended triode tube. The monoblocks provides so much weight in the bottom end that a powered subwoofer is irrelevant. The highs are extended and presence but they are not just there, they are harmonic. It can drive speakers that are 78dB so running out of power on inefficient speakers are a thing of the past. The unit has a digital protection circuit, which can handle any surge from the outlet or it a tube should fail. High quality parts throughout will contribute to years of pleasurable music.

Preamp Features:

Multiple outputs: Hi Low gain, fixed out at 1.8 volts, and a bypass output.

Multiple Inputs: Front mounted selector switch-CD, Tape Recorder, Tuner and Aux. (for TV, VCR or Computer

Custom Wound Audio Transformers with a core of German grain oriented silicon steel.

15th generation proprietary design.

State of the Art Components: ALPS audio potentiometer, gold plated RCA input jacks.

Preamp Technical Data:

Max Output voltage: 20 dB (Out 1), 10 dB (Out 2)

Voltage Gain: 30 V

Frequency Response: 5Hz to 110KHz, 10 V

Distortion THD: Less than .02%; 1 KHz, 10 V

SNR: Less than 100 dB

Input Impedance: 100Kohms

Output Impedance: 600 ohms

Fuse: 110/120 VAC 5 amp fast blo and for 220/240 VAC 2.5 amp Fast Blow

Weight: 23 pounds

Size: 17 inches W X 13 inches D X 4.5 inches H

Output Impedance: 600 ohms

Tube Complement: 2 pcs. 12AX7; 2 pcs. 12AT7

Monoblock Technical Data:

Rated Output Power: 200 W per channel at 8 ohms, 25Hz to 40KHz

Frequency Response: (at 1 watt into 8 ohms) 14Hz to 50KHz + 1dB

Distortion THD: Less than 1% at 150 W output, 21Hz to 28KHz

Circuit Type: Ultra Linear, Class AB

Input Impedance: 100Kohms

Input Sensitivity: 2.35mV at 1KHz and 8 ohms for 200 watt output Output Impedance: 4 ohms and 8 ohms

Tube Complement: 2 pcs. 211 power output; 2 pcs. El34 power drivers, 2 pcs.

12AT7 power drivers.

Power Requirements: 110V-120 VAC 60Hz 180 watts-standby, 850 watts maximum (220 VAC 50Hz option)

Weight: 52 pounds (23 Kg) net, approximately 60 pounds (25 Kg) packaged

Warranty: Two year limited parts and labor. One year or 1000 hours whichever comes first on Jolida Tubes.