American Graffiti Sphere ZSP 2.10

Price & Contact: Call for pricing; 310-532-1770
All measurements @ 14V unless otherwise specified
Frequency Response (4-ohm IHF Load 20 Hz to 20 kHz 1 kHz Ref.): +.43 dB, –.49 dB
L/R channel error (max deviation 20 Hz to 20 kHz): .53 dB
Phase Response (4-ohm IHF Load 20 Hz to 20 kHz 1 kHz Ref.): +.7.2 degrees, –27.9 degrees
Signal-to-Noise Ratio (Below Rated Output, “A” weighted): –98.5 dB
Distortion at Rated Output @ 1 kHz: .03 % @ 320 W
Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1% THD+N (all channels driven into 4 ohms): 141.6 W x 2 @ 14 V; 115.8 W X 2 @ 12.8 V; 74.5 W x 2 @ 10.5 V
Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1% THD+N (all channels driven into 2 ohms): 203.1 W x 2 @ 14 V; 162.6 W x 2 @ 12.8 V; 104.6 W x 2 @ 10.5 V
Output Power (4-ohm IHF Reactive Load @ 1% THD+N @ 60 Hz bridged): 487.4 W x 1
Crosstalk @ rated output, 20 Hz to 20 kHz: –46.7 dB
Damping Factor @ 100 Hz: 174
Voltage for Full Output: 281 mV to 2.8 V
Idle Current Draw: 1.1 Amps
Current Draw @ 1/3 Maximum Power: 35 Amps @ 164 W
Efficiency @ 1/3 Maximum Power: 33%
Power Up Noise: 20.9 dB SPL
Power Down Noise: 46.5 dB SPL

		American Graffiti Sphere ZSP 2.10
		If you’re looking for an amplifier with both sonic and visual appeal, American Graffiti’s ZSP 2.10 could be it.		American Graffiti Sphere ZSP 2.10 Specs Price & Contact: Call for pricing; 310-532-1770 All measurements @ 14V unless otherwise specified Frequency Response (4-ohm IHF Load 20 Hz to 20 kHz 1 kHz Ref.): +.43 dB, –.49 dB L/R channel error (max deviation 20 Hz to 20 kHz): .53 dB Phase Response (4-ohm IHF Load 20 Hz to 20 kHz 1 kHz Ref.): +.7.2 degrees, –27.9 degrees Signal-to-Noise Ratio (Below Rated Output, “A” weighted): –98.5 dB Distortion at Rated Output @ 1 kHz: .03 % @ 320 W Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1% THD+N (all channels driven into 4 ohms): 141.6 W x 2 @ 14 V; 115.8 W X 2 @ 12.8 V; 74.5 W x 2 @ 10.5 V Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1% THD+N (all channels driven into 2 ohms): 203.1 W x 2 @ 14 V; 162.6 W x 2 @ 12.8 V; 104.6 W x 2 @ 10.5 V Output Power (4-ohm IHF Reactive Load @ 1% THD+N @ 60 Hz bridged): 487.4 W x 1 Crosstalk @ rated output, 20 Hz to 20 kHz: –46.7 dB Damping Factor @ 100 Hz: 174 Voltage for Full Output: 281 mV to 2.8 V Idle Current Draw: 1.1 Amps Current Draw @ 1/3 Maximum Power: 35 Amps @ 164 W Efficiency @ 1/3 Maximum Power: 33% Power Up Noise: 20.9 dB SPL Power Down Noise: 46.5 dB SPL
		by Brian Smith

		The ZSP 2.10 is a 2-channel amplifier rated at 100 W x 2 into 4 ohms. Features include gold-plated connections, switchable high- or low-pass crossovers with variable cutoff frequency, adjustable bass boost, and line outputs. The most unusual feature of this amp is it’s cylindrical heat sink. Stuffing the circuitry of a high-powered amplifier into a 4-inch aluminum pipe could be considered thermodynamically insane. However, extruded fins on the interior of the casing and an internal temperature-controlled fan should prevent any appearances of the magic smoke genie. The result is a screaming amp in a small space that is visually unlike anything on the market today. Performance Overall performance from the ZSP 2.10 was impressive. Turn on/off noises would be considered a bit high in competition circles, but on the strong side, this (tube?) amp produced almost 500 W bridged into a 4-ohm reactive load. Resistive power measurements revealed a bonus of about 40% over the manufacturer’s 4-ohm rating and relatively flat power response. The ZSP 2.10 was also happy at low supply voltages, which is always a plus for those who spend a lot of time playing their systems without the engine running. Signal-to-noise and crosstalk numbers were also quite good, measuring –98.5 dB and –46.7 dB, respectively. Good amp specs aren’t hard to come across, but if you want them in a cool 4-inch aluminum pipe, you’ll have to call the folks at American Graffiti. Installation The ZSP 2.10 is supplied with mounting brackets to secure the amp, and right-angle RCAs that will allow end cap clearance. Under-seat mounting won’t be possible due to the amp’s height, but the mounting brackets and the amp’s cylindrical shape should offer a wide variety of options to a clever installer. Connections & Adjustments Connections to the ZSP 2.10 consist of RCA line inputs, RCA line outputs, and captive style receptacles for all power and speaker connections. Adjustments include input sensitivity, crossover mode select, crossover cutoff frequency, and line output configuration.