Diamond Audio Technology M3 M361, M371I, M351I, M341, M3 M351 User Manual

M3 SERIES

OWNER'S MANUAL

INTEGRATED SYSTEMS	COMPONENT SYSTEMS
M331i - M341i	M341
M351i - M361i	M351
M371I - M391i	M361

Dear Valued Customer,

Thank you for choosing Diamond M3 speakers. These speakers represent the latest advances in acoustic technology, and like all Diamond products are hand built and tested in our own factory, using the highest grade components and state of the art techniques. When installed properly they will provide many years of accurate sound reproduction.

Please keep in mind that prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This high performance speaker system can exceed that level, so please exercise restraint in it's operation in order to preserve your ability to enjoy it's fidelity in the future.

Because of their flexible installation possibilities, please consider having your new speakers professionally installed by an authorized Diamond Audio Dealer. This will assure a clean and efficient installation, and extend your one year warranty to three years.

At Diamond, we strive to bring honest value and excellent quality to all of the speakers we build. By your purchase of this product you have joined the growing family of discerning listeners who demand only the best. Welcome!!

Sincerely,

Rikki Farr

Chairman, CEO

Diamond Audio Technology, Inc.

To learn more about the Diamond family, please visit our web site,

www.diamondaudio.com

FEATURES

-TEXTURED, CO-POLYMER CONES - micro texture improves high frequency response.

-PROPRIETARY FRAMES - heavy gauge steel for increased stiffness, low resonance.

-BUTYL RUBBER SURROUNDS - impervious to environmental degradation.

-ALUMINUM DOME TWEETERS - smooth audiophile response.

-DIAMOND AUDIO QUALITY - 3 year warranty with authorized dealer installation.

-BI-AMP CAPABLE CROSSOVERS - individually voiced, model specific crossover topology - configurable for active crossovers.

THIELE SMALL PARAMETERS

Parameter	(unit)		M391i	M371i	M361i/M361	M351i/M351	M341i	M331i
Sensitivity (2.83V@1m) (dB)			91.5	91.0	91.0	90.5	89.5	88.0
Qts			0.65	0.54	0.46	0.51	0.60	0.66
Fs	(Hz)		47	47	54	63	80	102
Vas	(L)		31.7	23.5	12.9	8.3	3.7	1.4
Rdc	(ohm)		3.2	3.0	3.2	3.5	3.2	3.4
Xmax	(mm/N)		4.0	4.0	4.0	3.5	2.5	2.0
Impedance	(ohm)		4	4	4	4	4	4
Power (nom/max)		(Watt)	60/120	50/100	50/100	40/80	20/40	15/30

M3 INTEGRATED SYSTEMS

STANDARD CONNECTION

The M3 integrated systems are shipped configured for a single channel per speaker. To connect a standard single channel input simply connect the + and - wires to the two exposed terminals.

BI-AMPING

An exclusive and unique feature of the M3 integrated systems is the option to use separate amplifier channels to power the tweeter and mid-bass driver individually (biamping). This configuration allows an external active crossover to be used, enabling electronic crossover filter customizations, level matching and phase adjustments.

BI-AMP CONNECTION

To power the tweeter separately from the mid-bass driver, remove the two leads from the

tweeter terminals and connect the tweeter amp channel + and - wires directly to these terminals. To protect the tweeter in all cases, a passive filter network consisting of a PTC and a 12dB/oct filter is

always in-line with the tweeter. Bypassing this filter for special installations is possible, however it is not recommended and will void warranty. Please consult your dealer before attempting this.

To Bi-amp, simply remove these two connectors and connect tweeter amplifier.

INTEGRATED SYSTEMS - PARTS LIST

(M331i, M341i, M351i, M361i, M371i, M391i) Each system contains:

(2) M3 Speakers

(2) M3 Grilles with Mount Ring*

(2) Mounting Gaskets

(1)Mounting hardware kit

(2)4x6 adaptors (M341i only)

ASSEMBLY

The drawing below shows the parts included and correct assembly of M3 integrated and M3 component midrange drivers. See opposite for separate tweeter installation and component system connection details.

*Grilles not included with M331i or M371i