Definitive Technology StudioMonitor 45 loudspeaker Specifications

Sidebar 3: Specifications

Description: Two-way, port-loaded, stand-mounted loudspeaker. Drive-units: 1" aluminum-dome tweeter, 5.25" woofer. Frequency range: 35Hz–30kHz. Nominal impedance: 8 ohms. Sensitivity: 90dB/W/m.
Dimensions: 11 11/16" (297mm) H by 6¾" (172mm) W by 11 11/16" (297mm) D. Weight: 12 lbs.
Serial number of review samples:MCDA0112-TA01281.
Price: $398/pair.
Manufacturer: Definitive Technology: 11433 Cronridge Drive, Suite K, Owings Mills, MD 21117-2294. Tel: (410) 363-7148. Fax: (410) 363-9998. Web:

Definitive Technology
11433 Cronridge Drive, Suite K
Owings Mills, MD 21117-2294
(410) 363-7148

sangel's picture

In a recent audio fest here in Athens, i had the chance to audition a pair of DefTech SM45 Speakers drove by an Advanced I65 integrate amplifier with excellent, for my taste, results.
Finaly I have ordered the speakers and looking for amplifier alternatives.
Although, i am very pleased with your cerain review regarding the above subject, i would be very gratefull if you can guide me to the following.

Is it worth it to use the next upgraded Nad model that is the C326BEE, shall i gain any benefits regarding audio results;
I am asking because, the above model other than the extra power handling i.e. 50WRMS/CH isteade of 40WRMS/CH has dual SUB outputs - useful for extra soundstage and lower octave - and separate pre/power in/out.

Your reply woulde be very much appreciated

Kind regards

Stelios Angelidis, MSEE, MBA