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Morel CAT 308 1-1/8" Soft Dome Tweeter

Brand:| Model: CAT 308
Overview
A new version of Morel's classic MDT-30, the CAT308 is a very fast tweeter capable of high dynamic range without SPL compression.
Highlights
  • 104 mm aluminum faceplate
  • Large Hexatech™aluminum voice coil
  • Replaceable Acuflex™dome/coil assembly
  • Ferrofluid cooled
  • High power handling
  • Sturdy gold plated input tags
Part # 
277-082
Weight: 1.4 lbs.  
IN STOCK
List Price$99.99
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$76.40
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Part # 277-082
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Product Details

Morel CAT 308 1-1/8" Soft Dome Tweeter

A new version of Morel's classic MDT-30, the CAT308 is a very fast tweeter capable of high dynamic range without SPL compression. It features a single magnet system vented into a damped rear chamber that lowers resonance. The ferrofluid cooled aluminum voice coil contributes to the CAT308's low distortion and exceptionally smooth response. 1-1/8" treated soft dome.



Product Specifications
  • Tweeter TypeSoft Dome
  • Cone / Dome Diameter1-1/8"
  • Impedance8 ohms
  • Power Handling (RMS)200 Watts
  • Frequency Response1,600 to 20,000 Hz
  • Sensitivity90 dB 1W/1m
Thiele-Small Parameters
  • Resonant Frequency (Fs)700 Hz
  • DC Resistance (Re)5.20 ohms
  • Voice Coil Inductance (Le)0.09 mH
Mounting Information
  • Overall Outside Diameter4.09"
  • Cutout Diameter2.83"
  • Depth1.69"
Morel CAT 308 1-1/8" Soft Dome Tweeter
  • BrandMorel
  • ModelCAT 308
  • Part Number277-082
  • UPC844632070754
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (7 Reviews)
  • Weight1.4 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

Morel CAT 308 1-1/8" Soft Dome Tweeter
Morel CAT 308 1-1/8" Soft Dome Tweeter is rated 4.7143 out of 5 by 7.
Rated 5 out of 5 by from Morel Cat 308The Morel CAT 308 is a world class tweeter. It's broad frequency response makes it perfect for two-way designs. Sublime performance with benchmark specifications.
Date published: 2014-06-13
Rated 5 out of 5 by from Morel, TC Sounds, JL Audio, Pioneer systemThis review applies to the Morel CAT 308 - Morel CAM 558 - Morel Caw 638 - TC Sounds EPIC 10 Purchased from Parts Express.Back in the 80s I had a Morel/Zapco/Emilar 12" woofers system in a 1986 Jetta and a few years later in a 1987 VW Scirocco then 1990 VW Fox.Twenty year have passed since I did anything to one of my cars but I got the itch again and after I purchased a 2012 VW Jetta (yes another VW) decided to do it again. Doing Morels again (paying retail prices) was a no-brainer even though I work for a car audio retailer and could have bought a brand that we sold at or below cost.Which subwoofers to use was my dilemma but after months of research I chose to go with TC Sounds Epic 10 trusting the reviews on this site. I painstakingly installed the tweeters in the dash under the air vent that faces up at the windshield. The dome mid-range installed behind the left and right vents facing forward removing the vent louvers and making a plate covered with fabric...believe it or not using woman's spandex leotards which is VERY transparent. I tried nylons but the were too transparent and snagged. This is a front stage setup with no rear fill.The 6" mid-bass was installed the the factory location in a small sealed 1/2" cylinder MDF enclosure that I made.The EPIC 10s are mounted in a .5cu ft per side 1/4 round totally MDF enclosure (1" thick) mounted and firing into the car behind the rear seats.A hand made a "SOLEN components" 12db passive crossover is used between the Dome Mids and Tweeters @ 2500hzDriving the system is a Pioneer DEH-80 CD Deck into 2 JL Audio XD 700/5s (1 per channel) setup as a 3way system 150 watts to each 6"(80 - 500 bandpass), 150 watts to each Mid/Tweeter (500 and up highpass) and 180 watts to each Epic 10. I was worried about the sound quality using the JL Audio because I used to be a hardcore Zapco fan but WOW the JLs work well noticing no sonic difference vs the Zapcos I've used in the past. I'm thinking that the Morels probably are the main reason for the great sound.The Epic 10s sound GREAT as well with tight deep bass. I tuned the system by ear using the 16 band equalizer built into the Pioneer.I do plan to use a spectrum analyzer to fine tune it even more to correct any dips or peaks there may be but as it stands this setup sounds AMAZING. I've never heard a home audio system sound as good let alone a car audio and the imaging is KILLER ! ! ! I was concerned about the decision to aim the tweeters reflecting off of the windshield...not anymore.
Date published: 2013-04-10
Rated 4 out of 5 by from Great sounding tweetersI love the way these tweeters sound. I built a pair of floor-standing loudspeakers for my audiophile dad several years ago with mtd-30s (as this speaker was previously known). In the beginning I used a chebyshev function for the high-pass portion of the 2nd order 4-way crossovers (butterworth on the other 3 drivers). I'm not an industry expert, but these were some of the best sounding speakers I had ever heard.The distortion of the mtd-30s was minimal at high volumes. The drawback to this was that the speakers gave little to no indication they were being pushed to the limit before they failed. My dad managed to blow 3 of them before I finally gave up on the chebyshev top-end and added some dampening to the crossover to smooth out the massive resonance at 20kHz.With the well behaved crossover and and added filament to dissipate some of the excessive power, we saw no more failures with the MTD-30s. they still sounded great (though we both agreed the earlier chebyshev setup sounded best), and it's still a pleasure every time I come over to hear them. Whether blasting Styx at >105dB or listening to a quiet nature special on the television, the sound these tweeters make is always very pleasing to the ear.Note: if you end up blowing a CAT 308, you can buy just the replacement coil and mounting plate assembly from parts express. It's screw-in replacement (no gluing or soldering), and it's less than 20 bucks which is a lot less than a whole new tweeter! I forget the model number of the replacement coil, but you can call morel to get the model number.
Date published: 2013-01-19
Rated 5 out of 5 by from CAT 308 Is A Rare Great Dome Tweeter!It is difficult to find just the right dome tweeter between high power handling, low crossover, smooth on/off axis responce, good pricing and just the right sound. This tweeter has it all and more!I was a large fan of the MDT 30 tweeter for many years. All my top end designs got that tweeter, but alas it was dropped by Morel. However- Morel came up with an even better replacement I think with the 308. It can take a very good power hit, crosses over below 3khz extremely well with no harshness, and sounds very articulate, light, open. I could not be happier with a dome tweeter like this model Morel CAT 308!! Tested side by side with 3 other well known tweeters the CAT 308 flat out played them. If only it were a bit cheaper would be the only flaw I can find. Function & sound wise it is a sonic marvel! If you sincerely want a incerdible tweeter under $75, you will be unbelievably impressed with this tweeter.
Date published: 2012-05-26
Rated 5 out of 5 by from Too my ears, a great tweeter!I have two tweeters at my disposal, the Morel 308's and the Vifa XT25GS60's. The Vifa is held in high esteem in the DIY world, it's smooth, it's extended, and it's airier than a mini skirt.I don't know what your ears hear but mine scream for mercy when listening to the Vifa's. If you like listening to whale songs the Vifa's will be a pleasure. For music try the Morel 308's, to my ear they're cleaner, less fatiguing, and punchier than the Vifa. The Morel 308's deliver the goods on Rock, Classical, and pretty much everything in between.
Date published: 2012-01-21
Rated 5 out of 5 by from Exceptional tweeter valueI have some of the elite 338 tweeters and these are so close in performance it isn't funny. New domes are plenty cheap so if you have a "mishap" it is a cheap fix. The domes are accuflex domes, and the SQ is top notch. I am crossing the at 2k with a 24db LR active XO.
Date published: 2009-11-22

Product Q&A

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Morel CAT 308 1-1/8" Soft Dome Tweeter

Can someone explain the differences between the morel 308's and the 408's for a 3 way party speaker set up-market with morel soft domes as the mids. I like the enclosure of the 308's, but wondered if the 408's are better suited SQ wise.

Asked by: FarNorth
While I cannot speak for sound quality between the two, they are very similar other than magnet type. The 408 has a slightly higher Fs which will reflect a slightly higher crossover point, as well as lower power handling. If you plan on cranking these up from time to time thie higher power of the 308 will probably be your best bet.
Answered by: MattP
Date published: 2014-09-04

Do tweeters need Zobels? I'm matching these with the RS150P-8 in your .23 cu ft knockdown box, together running off a sealed sub with your 12"DVC woofer, crossed over at 135hz. I came up with a .33 cap and a 6.5 ohm resistor for the Zobel.

Asked by: Rick64D
Tweeters generally do not need Zobel networks.
Answered by: MattP
Date published: 2014-07-11

Are the diaphragms of these tweeters sealed from enclosure.

Are the tweeter diaphragms able to acoustically couple with midrange or midbass driver(s) that share the internal airspace of the enclosure, (acoustic suspension) if a separate internal enclosure is not built to isolate the tweeter?If so, (the diaphragm can couple), then what might a comparable ( BL product, Nom. Pwr. Handlg., Voice Coil Former & Wire config., B Flux Density, & BL Product ) Morel unit to consider in it's place ?Thanks Very Much.
Asked by: Overkill
There is an internal chamber with the Morel. It is sealed from the air space of the speaker cabinet. You would never want drivers of separate frequency ranges to share the same air volume. In this case, the mid or woofers excursion would literally blow a mid or tweeter diaphragm out of their frame if no enclosure was behind them
Answered by: MarkAJH
Date published: 2012-05-29

How well would this mate with a em428 4" midrange and a dayton st385-8 using a dayton260-152 crossover with a dayton st385-8 15" woofer

I would like to make a 3 way system with this using an adcom 555 amp to drive it the amp is rated at 200 wpc, like the ribbon tweeters due to the extended frequency response but they are pricey for the higher wattage ones and I can't find the formula for a woofer at 300 watts rms means you need a mid at such and such wattage and your tweeter could be this wattage to match. Any teckies have any thoughts on this?
Asked by: DjCrossbones
As for "how well" something would sound, with or without something else, I'm afraid that is a matter of opinion. You may prefer one thing, I may prefer something different, and your neighbor may not be able to distinguish one from the other. As for power handling, in any system, the woofer is going to consume the vast majority of the available power, the midrange would be next, and the tweeter will have relatively little power left available to it. Unless you're bi- or tri-amping, I wouldn't concern myself too greatly with the power handling specification on the tweeters.
Answered by: RussR
Date published: 2014-03-18

Is the price for pair or for a single tweeter or for pair?

same question is about Morel MDM 55 2-1/8" Soft Dome Midrange
Asked by: Valdas2000
This product and the MDM 55 are sold individually. If you need a pair, you would order two (2) units.
Answered by: RussR
Date published: 2011-09-08

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