Originally Posted by Rob.M
Recently, the 300w Pioneer Amplifier I have in the Z decided to die, not unexpected after 6 years of use driving my mids 4 mids and highs. I am looking to replace the amp, but not really interested in paying the $$ I paid for the Pioneer all those years ago. My question is this, it seems that "Pyramid" amps are readily available at very affordable prices, how is the quality? Obviously, you usualy get what you pay for but I am curious if anyone can offer an opinion/review of these.
Ive used a few ebay special Pyramid amps, you do get what you pay for... I wouldnt use one except in extreme case for a sub in your beater car, definitely not a dailey driver.
Min Frequency Response: (what's this?) 15 Hz
This is on the high end, amps should have a maximum of 5hz, this is not as important for mids.
Max Frequency Response: (what's this?) 30 KHz
This is the maximum frequency the amp will respond to. 30khz is acceptable.
Protection Circuitry: (what's this?) Overload, Short Circuit, Thermal
This is auto shut off protection in case during installation or subwoofer failure, the amp is exposed to beyond capacity current, temperature, or voltage. The amp will shut off until its fixed. In my experience, Pyramid amps DO NOT survive ground outs(shorting the output lead to ground) that makes me not like them much.
Power supply topology: (what's this?) MOSFET
MOSFET is standard amplifier technology. FETs are the circuts that increase the voltage of audio.
Signal to Noise Ratio: (what's this?) 85 dB
This is the 'sensitivity' to noise of this amp. the lower the number, the more static you will hear. The lower the number the more detail in your sound you will be lacking as well. 85db is rather low for any amplifier, especially mids.
Gold Plated Connectors: (what's this?) Yes
Gold plated connectors supposovedly reduces the resistance between connections. This is generally standard on amplifiers.
Remote Control: (what's this?) Yes
Could be a number of things, either a remote gain which lets you control the volume from up front, a remote power on which simply turns the amp on via a wire, or a remote control which would really be gay.
Peak Power Output (Watts x Channels): 75 x 4
Peak output should NEVER be the only power rating on an amp, since this is pyramid, I would assume the RMS rating is more like 20watts x 4 RMS
In summary, this is a below average amp which will give you unsatifactory sound. If you need an affordable amp look around on TR or PM me and I can get you a decent alpine 4 channel for wholesale.