Martin Mach M72i & M151i

2pc Martin Mach M72i & 2pc M151i

Amplifiers - Yamaha P3500S & Chevin Research A1000

MACH M151I:

Woofer 15" with 4" voice coil

Nominal impedance 8 ohms

Power rating AES: 400 watts

Power rating peak: 1600 watts

Sensitivity 1w/1m: 100 dB

Maximum SPL, calculated: 126 dB

Maximum SPL, peak: 132 dB

Frequency range +/-3dB: 48 Hz - 125 Hz

Recommended amplifier: 450 watts in 8 ohms

Mach M72i:

Power rating IEC268: 150 watts

Power rating peak: 600 watts

Sensitivity 1w/1m: 94 dB

Max SPL, calculated long term: 117 dB

Max SPL, peak: 123 dB

Frequency range +/-3dB: 80 Hz - 20 kHz

Nominal impedance: 8 ohms

Recommended amplifier: 200 watts in 8 ohms

Yamaha P3500S:

Output Power

1kHz, THD+N=1% 8 Ohms Stereo: 390W + 390W

1kHz, THD+N=1% 4 Ohms Stereo: 590W + 590W

1kHz, THD+N=1% 8 Ohms Bridge: 1180W

20Hz-20kHz, THD+N=1% 8 Ohms Stereo: 350W + 350W

20Hz-20kHz, THD+N=1% 4 Ohms Stereo: 450W + 450W

20Hz-20kHz, THD+N=1% 8 Ohms Bridge: 900W

1kHz, 20mS nonclip 2 Ohms Stereo: 1000W + 1000W

1kHz, 20mS non-clip 4 Ohms Bridge: 2000W

Chevin Research A1000

RMS Power Output

into 8Ω (per channel) : 350 W

into 4Ω (per channel) : 600 W

Number of Channels : 2

Power Bandwidth +0db, -3db : 2 Hz – 80 kHz

Slew Rate in Excess of : 75 V / µS

Gain : x 50

Total Harmonic Distortion

typical @ 1db below clip : 0.04%

20 kHz @ 1db below clip : 0.07%

Signal to Noise Ratio

Topical Reference Full Output, Unweighted : -125 dB

Worst Case 10 Hz – 30 kHz : -95 dB

Crosstalk Typical : -115 dB

Damping Factor: 400

Input Impedance Electronically Balanced : 10 kΩ

CMRR (typical) : -70 dB

Input Sensitivity Reference Full Output into 4 Ω : 1V RMS

Protection

Clipping, Load Below 2.4 Ω : soft, dynamic linear

Shorted Output, DC or RF at Output : immediate

Power Consumption

1/3 Power Typical Program : 660 W

50/60 Hz AC in Volts (internally selectable) : 220 – 240 V or 100 – 120 V