Interesting Linear Power news

New Linear Power amps

The new amps will be better than the old amps and still built in the USA, same for the speakers.

 

I will post some pictures soon.

A few specs and features of the new amps are:

Smaller foot print than previous Linear Power amps of the same power rating. Higher efficiency power supply and output stages reduce heat dissapation and lower heat sink temperatures. ALL CLASS A/B operation, no Class D amplification, these are EXTREME SQ amplifiers.
Traditional style heatsinks still maintain the Linear Power look.
7 protection circuits make killing this amp a very hard job, reliability should be even higher than the old standards set by Linear Power for longivity.
Over voltage, Under voltage protection, Reverse polarity protection, Over current protection from low impedance loads, Short circuit protection from shorted wiring, Thermal protection, DC Offset protection.
Output and power supply stages are working at a fraction of their rated capabilities. (35 percent or less of capability at rated power)
Fan circuit with optional fan shroud for the LP2075 and LP2150, stock on the LP2250 and 5.1 Surround and 6 channel amps. Fan circuit activates low noise (34 dB noise floor) fan kit at 60 degrees C, thermal shut down of amp at 80 degrees C.
Only 33 amps of current draw at full power on the LP2150 (150 x 2 RMS @ 12 volts)
Idle current less than .9 amps
Operating voltage range 10.5 volts-15 volts DC
Turn on Audio delay 3 seconds, instant audio mute at turn off
Heavy 3 ounce copper traces reduce board losses and increase efficiency.
Independant grounding for each pre-amp channel, audio driver stage and output section maintaining the highest channel separation possible with the lowest noise floor and minimal channel cross talk.
Heavy board grounding in the audio stages to reduce radiated and induced noises, keeping the noise floor and distortion figures as low as possible.
Rail voltage filtering and storage caps directly at each half of each channel instead of relying on central storage and filtering caps. This reduces chances of noise entering the voltage paths after filtering at the power supply only and improves storage effectiveness by having storage directly at the output transistors.
Frequency bandwidth 6 Hz to 220kHz.
Damping factor rated at greater than 375 at lowest point in the circuit (speaker terminals) and at any frequency
"Floating" ground pre-amp and output stage (no connection to power supply ground, to reduce noise)
High quality SQ rated ON Semiconductor rated large cased (TO-3P) output devices
Independant op amps for each channel, for greater channel separation, no sharing of signals between devices.
Ultra quiet and high speed high frequency audio op amps in pre-amp.
Minimal electrolytic caps in audio chain.
By-pass caps on all audio electrolytics that are used in the audio chain.
High temp, low leakage low ESR caps used through out amp. (105 C)
1 percent mil spec metal film resistors used in all vital areas.

We will have more specs in the near future, these 5 prototypes were finished at midnight Monday Jan 3, bias was set and the amps boxed and shipped out for CES in Las Vegas Tuesday morning. They have not been tweaked out or fully tested yet.