Is the EP4000 still the best bang for buck?
I compared the EP4000 to my American DJ V3000 amp today at avsforum member carp's house and his EP4000 seemed to be generally about 4-6dB louder than my American DJ amp on his single JTR Captivator.
The difference was significant enough for me to be interested in purchasing an EP4000, but if there is something just a wee more powerful for the same basic dollar figure, then I'm interested in looking into that too.
I will soon take delivery on a pair of JTR Captivator PRO subwoofers and don't want to limit them too terribly by my amp.
The EP4000 uses Peak ratings for it's power listings, but from what I've read it's a rebadged EP2500 which used RMS ratings.
Thus the EP4000 RMS ratings are just the EP 2500 output power specs (1 kHz, 0.1% THD) per channel stereo:
500 watts RMS @ 8 ohms,
750 watts RMS @ 4 ohms,
1,200 watts @ 2 ohms.
Output power (1 kHz, 0.1% THD)
1,500 watts RMS @ 8 ohms,
2,400 watts RMS @ 4 ohms.
*Weight: 36.6 lbs. *Dimensions: 3.5" H x 19" W x 15.8" D.
I currently own a old American DJ V3000 amp which isn't too far off these marks. I found an old review where the big brother of my amp the V4000 was compared to a popular Crown amp at double the price (CROWN MACRO-TECH 2400) and not found lacking -- so that likely means that the v3000 amp does what it says it does. (Which admittedly isn't much) http://start.mobilebeat.com/archive/...php/t-154.html
It shows 1% THD instead of .1%THD
*Specifications: American DJ V3000 (1 kHz, 1.0% THD) per channel stereo:
400 watts RMS @ 8 ohms,
630 watts RMS @ 4 ohms,
800 watts RMW @ 2 ohms.
Output power (1 kHz, 1.0 % THD)
1,100 watts RMS @ 8 ohms,
1,500 watts RMS @ 4 ohms.
*Weight: 35 lbs. *Dimensions: 3.5" H x 19" W x 15.9" D.
I did notice besides the SPL difference that carp had his EP4000 bridged and gain knob for channel 1 completely maxed out. When I maxed out the gain knob on my V3000 amp the sound got distorted at the same AVR volume level. I had to knock the v3000 gain back to about 80% for it to clean up the sound. At that point my sub was measuring 4-6dB less at the listening position, but the audio was clean. Is that an artifact of the higher distortion level of 1% on my sub verses .1% on the EP4000?