custom linear-piston woofers > high durability with exceptional definition and precision

titanium tweeter > crisp, smooth, and transparent

DSP-tuned cabinets and crossovers > unparalleled accuracy

MTM architecture > wide sweet spot with reduced room reflections

24-bit/192kHz digital inputs > total digital studio connectivity

The M-Audio EX66 monitor is the culmination of years of research developing cutting-edge high-definition active reference monitor technology. Our midwoofer-tweeter-midwoofer (MTM) design yields a wide sweet spot while minimizing room reflections. The unique low-frequency drivers and custom titanium high-frequency driver deliver exceptional smoothness and transparency across the entire audio band, without resonant peaks—and the drivers are impervious to environmental conditions such as heat, humidity, and sunlight. Onboard DSP handles cabinet resonance tuning and crossover optimization to round out an incredibly accurate frequency response. Digital inputs compatible with up to 24-bit/192kHz signals and high-impedance balanced analog inputs insure that your signal path is entirely pristine. Both the specs and the sound are unrivaled at any price, let alone this value. Sold individually, the M-Audio EX66 represents a new high-resolution standard for both 2-channel and multichannel applications.

MTM configuration yields wide sweet spot with reduced room reflections

two 6” custom linear-piston woofers deliver high durability with exceptional definition and precision

1” titanium dome tweeter produces smooth transparency without high-frequency smearing

bi-amplified with 200 watts PWM power per channel

DSP-tuned cabinets and crossovers for extremely accurate frequency response with no resonant peaks

high-impedance analog inputs (XLR and ¼” TRS balanced)

S/PDIF and AES/EBU digital input up to 24-bit/192kHz for total digital studio connectivity

OptImage II high-frequency wave guide minimizes diffraction

Acoustic Space control optimizes low-frequency response based on room placement

soft limiter circuit to prevent clipping

calibrated volume control/input sensitivity control

high-frequency roll-off/boost switch

mid-range “presence” switch (low-Q dip or peak)

low-cutoff switch (37Hz, 80Hz, 100Hz)

custom-designed MDF cabinet

internal adiabatic foam absorbs standing waves and enhances low-frequency response and efficiency

dual flange rear-port design to minimize air turbulence and associated friction noise

magnetic shielding

Type:	MTM studio reference monitor
LF Driver:	two 6” custom linear-piston woofers
HF Driver:	1” titanium dome tweeter with wave guide
Frequency Response:	37Hz – 20kHz, (near-field acoustic response)
Crossover:	2.56kHz, 4th-order Linkwitz-Riley maximally flat alignment
LF Amplifier Power:	104 watts (IHF dynamic power into 4 Ω)
HF Amplifier Power:	104 watts (IHF dynamic power into 4 Ω)
THD+N:	< 0.1% (@ 50 watts into 4 Ω)
Maximum SPL @ 1 meter:	109dB (115dB for a stereo pair) peak
Analog Inputs:	XLR balanced (20k Ω), ¼” TRS balanced (20k Ω)
Digital Inputs:	S/PDIF – In and Thru (75 Ω), AES/EBU (110 Ω), built-in phase lock loop (PLL) with low jitter (<250 psec p-p); S/PDIF receiver can lock to an incoming clock of up to 216kHz
Controls:	Acoustic Space (full, half, quarter); Mid-Range Boost (flat, +2dB); Low Cutoff (37Hz, 80Hz, 100Hz); High Frequency Adjustment:
Polarity:	positive signal at + input produce outward LF cone displacement
Input Sensitivity:	-10dBV pink noise at input yields 90dB SLP (c-weighted) @ 1 meter; variable
Protection:	RF interference, output current limiting, over temperature, turn-on/off transient, subsonic filter, external mains fuse
Indicator:	power on/off indicator on front panel
Power Requirements:	user selectable for 100V ~50/60Hz, 115V ~50/60Hz, and 230V ~50/60Hz
Cabinet:	painted high acoustic efficiency MDF
Dimension:	482.6 mm (H) x 209.6 mm (W) x 241.3 mm(D); 19 inches (H) x 8.25 inches (W) x 9.5 inches (D)
Weight:	11.18 kg/monitor (without packing); 24.65 lbs/monitor (without packing)