By: Mackie
Professional Audio / Video Products
Contact us for lowest price (800) 284-2288, (858) 565-1101,, or fax (858) 300-4193
150W Portable Powered Loudspeaker
The SRM-150 combines Mackie’s proven mixer and SRM Series Active loudspeaker technologies to create a powerful, great-sounding 3-channel PA system that is ultra-compact, versatile and expandable. The Mackie SRM 150 Compact Active PA System is ideal for a wide variety of applications ranging from boardroom A/V to live musical performance in coffee houses, piano bars, or rehearsals, just to name a few.

The built-in Mackie mixer provides two mic/line channels that accept XLR or ¼-inch connectors, with switchable 48V phantom power on the mic inputs. Channel 1 can also accept an instrument input directly from a guitar or bass with the press of a switch. A third stereo channel can be used for playing back MP3s, CDs, or tapes. A 3-band EQ is included to adjust the tone and minimize feedback, and a Thru connector provides a line-level output for connecting to a mixer or another powered loudspeaker.

The 5.25-inch full-range weather-resistant neodymium driver was specified by EAW to handle the 150 available watts delivered by the internal Class D amp. The SRM150 can deliver 120 dB SPL @ 1 meter, which is incredible for its size. The cabinet is constructed of high-pressure injected polypropylene. An insert is provided on the bottom of the cabinet for mounting on a mic stand, using the included mic stand adapter. In addition, a threaded insert is provided on the top of the cabinet for mounting a microphone, using the included mic boom extender.

1200W of ultra-efficient Class-D Fast Recovery™ amplification
600W RMS / 1200W peak power
131 dB SPL max output (peak @ 1m)
36 Hz - 145 Hz operating range
15" high-output woofer with 3" voice coil
Active electronics provide complete system optimization
Symmetrical Linkwitz-Riley crossover (100Hz, 24dB/octave)
Precision tuning filters for ultra-accurate bass reproduction
Phase alignment to perfectly complement Mackie full-range loudspeakers
Ported, direct-radiating design for maximum punch and low-frequency extension
Designed and tuned by Eastern Acoustic Works (EAW)
Dual XLR inputs, full-range and high-pass outputs for mono or stereo setups
Level control and polarity invert switch with LED indicator
Signal/limit and thermal LED indicators
Integrated protection and limiting circuitry
Rugged all-wood cabinet (15mm birch plywood)
Pole mount receptacle for mounting full-range speaker
Compact and lightweight

Acoustic Performance
Frequency Response (–10 dB) 36 Hz - 145 Hz
Frequency Response (–3 dB) 43 Hz - 92 Hz
Max peak SPL (calculated) * 131 dB
Max peak SPL (measured) ** 126 dB
Diameter 15.0 in / 381 mm
Voice Coil Diameter 3.0 in / 76 mm
Diaphragm Material Paper
Magnet Material Ferrite
Power Amplifier
Rated Power 600 watts rms; 1200 watts peak
Rated THD < 0.03%
Cooling Active, twin thermally controlled vari-speed fans
Design Class D
Input / Output
Input Type Female XLR Balanced differential (stereo left / right)
Input Impedance 20 kΩ balanced
Full Range Output Male XLR Balanced (parallel with input)
High Pass Output Male XLR Balanced
Output Impedance 300Ω
Level Control -6 dB to 6 dB
Electronic Crossover
Crossover Type 24 dB / oct. Symmetrical Linkwitz-Riley
Crossover Frequency 100 Hz
Protection Features
Over-excursion Protection 45 Hz 24 dB / oct. Butterworth High Pass Filter
Thermal Protection Amplifier mute, auto reset, twin thermally controlled vari-speed fans
Driver Protection Peak / RMS Limiter
Display LEDs Power Light ON, Polarity Invert, Thermal, Sig / Limit, Front Power ON
Operating Temperature 0˚ - 40˚ C (32˚ - 104˚ F)
AC Power Requirements
US 100 - 120 VAC, 50 - 60 Hz; 300 watts
EU, CN 220 - 240 VAC, 50 - 60 Hz; 300 watts
AC Connector 3-pin IEC 250 VAC; 15 A male
Construction Features
Basic Design Rectangular
Material 15 mm exterior grade premium birch plywood
Finish High durability black paint
Handles One on each side
Grille Powder-coated galvanized steel
Physical Properties (packaged product)
Height 21.7 in / 551 mm
Width 23.2 in / 589 mm
Depth 29.9 in / 759 mm
Shipping Weight 88.0 lb / 39.9 kg
Physical Properties (product)
Height 20.0 in / 508 mm
Width 18.25 in / 464 mm
Depth 25.0 in / 635 mm
Weight 80.0 lb / 36.4 kg
Mounting Methods Floor mount only. WARNING: The cabinet has no rigging points and is not suitable for rigging. NEVER attempt to suspend the HD1501 by its handles.

* Calculated from peak driver sensitivity and amplifier power, half space.
** Measured with swept sine at 1 W within operating range, scaled for max power, half space.

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Prices and specifications subject to change without notice.