Boss D10F Phantom - good for FAST? - diyAudio
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Old 20th January 2016, 03:57 PM   #1
xrk971 is online now xrk971  United States
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Default Boss D10F Phantom - good for FAST?

I just ran across this subwoofer from the car audio world. Look at its specs and tell me if this just isn't perfect to make a simple 0.5 cu ft sealed box to hit 56Hz easy with lots of SPL to be the bass unit in a FAST system. With 94dB sensitivity, you can afford to give up even a full -6dB to baffle step loss and be at 88dB to match with several nice high end 3.5in to 4in full range drivers for the tops. ScanSpeak 10F, many Fostex's, B80, etc. For $41 seems like a total bargain. Anyhow just putting this out there in case anyone is interested in trying it out as it is dead simple 14 liter sealed box and run a XO at circa 300Hz to 500Hz.

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https://www.parts-express.com/pedocs...10f-manual.PDF

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(perhaps some black paint can be used to make the cone easier on the eyes?)
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Last edited by xrk971; 20th January 2016 at 04:04 PM. Reason: typo
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Old 20th January 2016, 07:40 PM   #2
xrk971 is online now xrk971  United States
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These are also available on Amazon for $36. Free shipping if you are Prime. Just ordered one to test out. The reviews on Amazon are quite positive.
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Old 20th January 2016, 07:52 PM   #3
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Yeah, spec wise it reminds me of the cheap AS woofers Sony and others made for their small stereo systems, early boomboxes. Still got a pair of 1975 Sony co-ax mobile audio/boombox 'full-range' drivers with near enough identical specs [at least when they were measured decades ago].

These are the kind of drivers I used a lot to make cheap tower/column/MLTL speakers for apt. dwellers, college dorms, etc.. I wish similar quality/specs/pricing was still available as they make for a great bang/buck small footprint speaker.

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Old 20th January 2016, 08:10 PM   #4
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The question i'd ask is how high does it go. I also wonder how they get it to go so low in such a small box and still keep the efficiency up near 91 dB/1watt.

You are sure right about it being ugly looking.

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Old 20th January 2016, 08:18 PM   #5
xrk971 is online now xrk971  United States
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We will see how high it goes. I don't have a 0.5 cu ft box ready, but an OB will let us ascertain the upper limit. One nice thing is it is flat which may be useful for a down firing invisible sub crossed below 100Hz.

The frame is aluminum alloy which is surprising at this price point. I think Boss is a subsidiary of Roland who actually make nice stuff.

It gets here in a few days and we will se if this pans out.

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Old 20th January 2016, 08:48 PM   #6
chrisb is offline chrisb  Canada
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in car audio, nothing is too gaudy or pretentious

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Old 20th January 2016, 08:54 PM   #7
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Quote:
Originally Posted by xrk971 View Post
I think Boss is a subsidiary of Roland who actually make nice stuff.
They do. My last Firewire DAC was an Edirol (Roland) and a real bargain. They do make a lot of stuff so there is room for quality variation.

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Old 26th January 2016, 09:32 PM   #8
xrk971 is online now xrk971  United States
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Default The Boss arrived

I got the driver today, looking at and holding it in my hands it feels well constructed. Nice alloy frame, very shallow profile, nice nickel plated spring terminals, the suspension is very stiff for a woofer, a huge half-roll surround that appears to be molded out of a slightly softer material than the cone but the cone and surround are integral and one continuous piece.

Some photos - looks just like advertised:

Click the image to open in full size.

Click the image to open in full size.

Put it up to DATS and many of the TS paramters like Qts, and Vas are better than the factory spec, but the sensitivity is coming in at only 89dB at 2.83v, a far cry from the advertised 94dB. That may in itself be a deal breaker as it was the raison d'etre for this driver.

There is also a very large rising impedance above 100Hz and funny business going on at 200Hz with an impedance peak there.

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Last edited by xrk971; 26th January 2016 at 09:37 PM.
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Old 26th January 2016, 09:44 PM   #9
chrisb is offline chrisb  Canada
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well, it is a car woofer after all - many denizens of that end of the pool live by a different set of guidelines - you probably need to have an 800watt car amp driving them to get the rated sensitivity - you know, synergy and all that BS
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Old 26th January 2016, 09:45 PM   #10
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Good to know, thanks!

GM
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