BAZOOKA P250

Price & Contact: $249, 504-272-7135; www.bazooka.com
All measurements @ 14 volts unless otherwise specified.
Frequency Response (4-ohm IHF Load 20 Hz to 20 kHz, 1 kHz Ref.): +0.6 dB, -1.2 dB
L/R channel error (Max deviation 20 Hz to 20 kHz): 0.2 dB
Phase Response (4-ohm IHF Load 20 Hz to 20 kHz 1 kHz Ref.): +76 degrees, -36 degrees
Signal to Noise Ratio (Below Rated Output, “A” weighted): -102.2 dB
Distortion at Rated Output @ 1 kHz: .42% @ 160 watts
Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1% THD+N all channels driven into 4 ohms: 54 watts x 2 @ 14 volts; 54 watts x 2 @ 12.8 volts; 37 watts x 2 @ 10.5 volts
Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1% THD+N all channels driven into 2 ohms: 79 watts x 2 @ 14 volts; 75 watts x 2 @ 12.8 volts; 50 watts x 2 @ 10.5 volts
Output Power (4-ohm IHF Reactive Load @ 1% THD+N @ 60 Hz): 183 W
Crosstalk (Referenced to Rated Output, 20 Hz to 20 kHz): -66.4 dB
Damping Factor @ 100 Hz, 2 Ohms: 511
Voltage for Rated Output: 221 mV to 6 volts
Idle Current Draw: 0.6 amps
Current Draw @ 1/3 Maximum Power: 14.2 amps @ 57 watts
Efficiency @ 1/3 Maximum Power: 29%
Power-Up Noise: 38.8 dB SPL
Power-Down Noise: 26.8 dB SPL

		Bazooka P250 www.bazooka.com
		Installation flexibility is the key with Bazooka’s new two-channel P250.		Bazooka P250 Specs Price & Contact: $249, 504-272-7135; www.bazooka.com All measurements @ 14 volts unless otherwise specified. Frequency Response (4-ohm IHF Load 20 Hz to 20 kHz, 1 kHz Ref.): +0.6 dB, -1.2 dB L/R channel error (Max deviation 20 Hz to 20 kHz): 0.2 dB Phase Response (4-ohm IHF Load 20 Hz to 20 kHz 1 kHz Ref.): +76 degrees, -36 degrees Signal to Noise Ratio (Below Rated Output, “A” weighted): -102.2 dB Distortion at Rated Output @ 1 kHz: .42% @ 160 watts Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1% THD+N all channels driven into 4 ohms: 54 watts x 2 @ 14 volts; 54 watts x 2 @ 12.8 volts; 37 watts x 2 @ 10.5 volts Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1% THD+N all channels driven into 2 ohms: 79 watts x 2 @ 14 volts; 75 watts x 2 @ 12.8 volts; 50 watts x 2 @ 10.5 volts Output Power (4-ohm IHF Reactive Load @ 1% THD+N @ 60 Hz): 183 W Crosstalk (Referenced to Rated Output, 20 Hz to 20 kHz): -66.4 dB Damping Factor @ 100 Hz, 2 Ohms: 511 Voltage for Rated Output: 221 mV to 6 volts Idle Current Draw: 0.6 amps Current Draw @ 1/3 Maximum Power: 14.2 amps @ 57 watts Efficiency @ 1/3 Maximum Power: 29% Power-Up Noise: 38.8 dB SPL Power-Down Noise: 26.8 dB SPL
		by Brian Smith

		The P250 is a two-channel amp rated at 50 watts per channel or 160 watts bridged into 4 ohms. Features include internal crossovers with variable cutoff frequency, variable bass boost, a variable subsonic filter, and a wired remote control module. The P250 provides both RCA- and speaker-level inputs, line-level outputs, and options for stacking and liquid cooling multiple amplifiers. Performance Performance from the P250 never fell below its advertised specs. Resistive output into 4 ohms measured 54 watts x 2 @ 12.8 volts and 14 volts and 37 watts x2 @ 10.5 volts. The THD+N vs. Output chart represents the P250’s bridged output into a 4-ohm reactive load. This measurement shows 183 watts @ 1% THD+N and about 2% THD+N @ 1 watt. This 2% is a noise component — power supply hash that isn’t filtered from the amps output. This test is performed with a 22 kHz bandwidth-limiting filter in the test set-up. This filter usually eliminates this type of noise prior to the measurement, but the P250 seems to have just a bit of hash that slips into the audio bandwidth. I should point out that this is definitely bench-geek territory. About the only problem that this noise will cause will be less than stellar technical measurements. If 2% of a 1-Watt, 60 Hz signal output is noise around 20 kHz, it’s likely that only rodents and very small mammals would be capable of detecting it. Installation This is where this amp shines. To begin with, it’s quite small, measuring only 10 x 2.6 x 11 inches. This alone should allow a variety of installation options, but with the addition of the optional stacking and liquid cooling kits, things can only get wilder. While you could certainly liquid cool a single amp, common sense suggests that if you’re going to stack, this option becomes more of a necessity. Unfortunately, we didn’t receive a liquid cooling kit for this evaluation. Otherwise, the P250 appears to be a package that offers many installation options with a minimum of installation hassles. Connections & Adjustments Connections to the P250 include RCA line inputs and outputs, modular high level input plug, telephone-style remote connector and screw-type terminal strips for all power and speaker connections. Power and ground connections accept 3/8-inch spade plugs with the speaker outputs configured for slightly smaller 5/16-inch units. Adjustments to the P250 include input sensitivity, subsonic filter, bass boost, crossover cutoff frequency adjustments and crossover mode switch. With the exception of the mode select switch all controls are continuously variable within a specific range. The subsonic filter is variable from 20 Hz to 50 Hz, bass boost from 0 to +19 dB and input sensitivity from 0.22 volts to 6 volts. High pass cutoff frequency is variable from 80 Hz to 1.2 kHz and low pass cutoff frequency from 50 Hz to 150 Hz. The P250s input sensitivity and crossover adjustments are located on the remote control module. I’ll go ahead and warn you, this remote is located under the large Bazooka badge in the center of the heatsink. If you skim through the manual at about 100 mph, you’ll most likely miss this tidbit of info and begin to wonder why the remote wasn’t packed in the box. I certainly did, so I called Bazooka, and felt like a complete idiot too.