[Mono Power Amplifier for my Subwoofer]

Hi guys,

I know it's been a while I haven't posted, but I'm curious if anyone has any suggestions for a mono power amp to run my subwoofer. I currently have a JBL MPC200 pro amp But the problem is that given its dimensions, it doesn't fit in any standard audio furniture.

I would need an amplifier that can sit underneath my receiver [Anthem MRX] and is no wider than 17" and 14" deep. 

I saw that Dayton has one with a ton of bells and whistles I don't need.... Emotiva has one also but I believe it is a class A/B, meaning it probably needs vertical ventilation.

I am a little out of touch on the new products out there, any suggestions?

Thanks a lot
ROb

[Single Klipsch Heresy I K-22-EF Woofer ****SOLD****]

This is still kicking around...  Local pickup is ideal (and free) or shipping is from H2P2S2 region in Montreal...

[Single Klipsch Heresy I K-22-EF Woofer ****SOLD****]

This has sold locally.

 

This is a single KLIPSCH K-22-EF  12" functioning woofer from a Heresy I. DCR 7.4 Ohms. I replaced both woofers in a set of Decorator Heresy I speakers because one was blown.  Although not pretty to look at, this other one works fine for someone working on a DIY where it isn’t visible.

 

What is a fair price?  thinking 20$ locally (Montreal, QC).

 

 

 

[Solid State amps known to sound good with Klipsch]

 

I churned through a bunch of class D amps over the past few years. I really liked the Bel Canto and Wyred 4 Sound amps. The Peachtree 220 was decent, I even tried the diy classdaudio.com amp which was in the same ballpark as the Peachtree as far as sound. In the end I'm back to using an old class a/b Atlantic Technology amplifier. I did not have Klipsch speakers at the time so I cannot say it they mate well. In the end it was more cost effective to go with a classic a/b amp.

 

Thanks for your input… I guess those class D amps look like bargains in their kit forms, but lose their price advantage once you start adding all the other required hardware that isn’t included.  Given the Heritage series high efficiency, power isn’t an issue even with Class A/B amps…

[I'd like to thank Bob Crites (my warranty department)]

 

 

 

Hey, it's The Doctor - welcome back John. Before I agree with you, I want to know what the green curve is

 

Greetings sir! 

 

The green plot is something I've been noodling here.  The K77M can actually remarkably good at higher sound pressure levels "if" you use the green curve.

 

To use the green curve however requires other changes to occur and that's where things get very interesting.

 

it's possible however to take the Klipschorn to a much better place without having to take a second mortgage out on your house.

 

More on that later.  

 

 

Did I miss it?

 

 

The suspense is killing me!

 

 

Ditto....

[A]

I’d agree with Carl on minimizing vibrations if you decide to install those drivers in doors.  I’m feeling the weak point will be the handle where the door isn’t firmly attached to the wall.  My IB is firmly braced with ¾” plywood and screwed to concrete, and I still get hairline cracks between the mouldings surrounding it (the wall is black which makes it easier to spot plaster). 

 

Making holes in the wall would give you a better foundation for an IB.  Having a baffle with a perfectly symmetrical woofer layout does cancel out a lot of vibrations.  Unfortunately real life is not perfect and compromises are made…

 

I wanted to squeeze a cornscala between mine... (sorry for the poor picture quality)...

 

 

[Solid State amps known to sound good with Klipsch]

The Hypex UcD amps are good (way better with an old-school big iron power supply), but I want to hear the new Ncore series. I could see the ncore moving to the top of my list.

 

I've always been curious on the buzz about D-Class amplifiers used as a main amp... are those Hypex boards where buzz is at these days? ...

 

Anyone else experiment with kits and what were your reactions?

[OPPO OPDV971H up scaling 1080i DVD player - SOLD]

This has been sold...

[OPPO OPDV971H up scaling 1080i DVD player - SOLD]

I know it plays DVDA (I have some of those) but I don't think it does SACD...

 

Mark, reply sent...

[OPPO OPDV971H up scaling 1080i DVD player - SOLD]

I know, it's been awhile... guess life really got busy (actually I had gotten involved with a woman who created quite some havoc) but that is in the past, and life has settled down.  The IB is still purring along...  recently changed projectors and AV reciever (the reason I'm getting rid of the DSP1124P)... I should go update my profile...

 

Still building more subs?... I miss any drama on here?...

ROb

 

ETA: wow, you've certainly racked on the posts since!...

[OPPO OPDV971H up scaling 1080i DVD player - SOLD]

This was the player that put Oppo on the map, as it was the highest-rated DVD player in 2005 Benchmark Review by "Secrets of Home Theater and High Fidelity"... this player is in very good condition and has served me well.  It was bought new in 2006 by me and comes with it’s original remote, packaging, and DVI to HDMI converter.   More info about the player at:

 

http://www.projectorcentral.com/oppo_opdv971h_dvd_player.htm

 

 

-    Up-converting DVD player scalable to 576P (PAL)/720p/1080i for LCD/plasma/DLP displays for better picture

-    Faroudja DCDi technology produces superior, crisper, clearer images on DTVs

-    Plays DVD, DVDaudio, DVD+/-RW, MPEG4/DivX/XviD, VCD, SVCD, CD+R/-RW, HDCD, MP3, WMA, JPEG, CD

-    Dolby Digital and DTS surround sound, PAL/NTSC compatible

 

I would like to get 45$US or 60$cnd plus shipping (or free pickup in Montreal)

Thanks for looking, ROb

[Behringer Feedback Destroyer Pro BFD DSP1124P / Parametric EQ - 55$ - SOLD]

I'm clearing out some equipement, including this Behringer Feedback Destroyer Pro BFD DSP1124P.  As some of you know it is a 24-Bit Dual Engine Digital Feedback Suppressor / Parametric EQ, which I was using simly as a parametric EQ for my IB subs in my home theatre.

 

It’s in perfect working condition, comes with all the manuals and packing material. It’s in excellent condition, used only in a residential setting by a non-smoker, and never rack mounted.

 

I'm asking a reasonable 55$US or 70$cnd plus shipping (or free local pickup in Montreal).

Thanks, ROb

 

[Lets Talk Projectors]

Ironically just installed a 5030UB on Sunday replacing my Panasonic I’ve had for many years (9 years!).  I was strongly considering the Panasonic AE8000 because I do use 2.35:1 ... and being able to automatically adjust image size might be worth a small image disadvantage (according to reviews).  I ended up with the Epson because the Panny wasn’t readily available in Canada, and it came with two 3D glasses and a free replacement bulb (via mail in offer).

 

One major deciding factor for me was placement flexibility, and maintaining enough zoom to be able to change from 2.35:1 to 16:9 (which is about an additional 1.3 zoom once placed).  Both the Panny and Epson had that flexibility.

 

They are both very good projectors… sometimes its hard to go wrong...

ROb

[Newbie looking for surround sound system]

Do you have the link to that Anthem user? Which model? What kind of issues? The only issue I've had was with the internet radio. That was resolved when Vtuner updated their site.

I've had nothing but great sound from my MRX500. I had a Denon 3801 and a Marantz 1601 before but the MRX took the sound quality beyond what I was expecting. Calibrating the ARC software does take some time and effort but well worth it. Minor adjustments can be made easily and then reinstalled in the receiver.

I've heard alot of great feedback on those units as well (including my local dealer), but I guess some were not so fortunate (I think this is the user he was refering to, and the issues he was having: http://forums.klipsch.com/forums/thread/1886822.aspx )

ROb

[Centre channel for jubilee's]

2'nd pick and what I'll be using, JubeScala

I'm with Coytee... how about your MF / HF section in the middle with a Lascala bass bin on either side to keep it under 36" ?

[Plywood cutting tutorial]

Time is going to be scarce for a little while here.

Time and space i'm guessing... congrats for your daughter...

I'll admit I shyed away from an outdoor sub given I'm in a pretty dense area... but now you have me rethinking it...

[Center for Heresy Fronts and Surrounds?]

Off topic, but:

I'm using a new Pioneer SC-65 (swapped out my problem ridden Anthem MRX-500) to drive everything...

I've heard alot of good press on the MRX series, what kind of issues were you having?...
ROb

[Plywood cutting tutorial]

Looking fantastic...

In retrospect, I may not have needed the dual driver set up

better safe than sorry?...[A] ... what's next on your list?... []

[Ms. Belle vs. Mr. K-Horn]

There are several companies making nice horn loaded subs
like Danley, as well as some very interesting DIY designs floating around on
the net. Check out some of Carl’s (CECAA850)
projects on here... he’s built and owned, built, sold, quite a few of the
current designs... and would be quite
apt at comparing them. Of coarse all af
them are large.

I also noticed you are using a dbx expander... so I’m
thinking “dynamic” would describe how you like your music. I’m using a IB sub with khorns on my main
system... once I tried it, there was no going back…

ROb

[Ms. Belle vs. Mr. K-Horn]

Define please.

That is capable to produce the volumes you will be listening
to, without distortion.

I feel the
sonic “characteristics” are not as obvious when in the sub-bass regions... and
placement, room effects, and adjustment will play a bigger role assuming you
are not distorting.

If you do all your listening at low volumes, or your musical
preferences are not very bass’y, then your selection is quite big … but if you
enjoy uncompressed, dynamic, music at louder volumes, your selection will
diminish. That is one of the issues
when mating a subwoofer with speakers capable to reproduce over 120db.

What do you listen to and what are your sources? (vinyle,
CD, flac, Bluray, etc…)

I’m using DIY units in both my systems and am not up to date
on the current subwoofer models (the subwoofer forum may be of more help
there)… but if you want an efficient subwoofer with good bass extension,
Hoffman’s Iron Law (that relates efficiency and bass extension to enclosure
size) certainly applies, and the reason many heritage owners are using such
LARGE subwoofers.

If you do look around for a subwoofer, try and figure out
before hand what budget, size, WAF, potential placement, etc... you are willing
to live with...

ROb

[Ms. Belle vs. Mr. K-Horn]

I share the opinion that the Lascala and Belle will resemble
each other more than to the khorn given the lost bass extension, but either
could work with a proper subwoofer. The
Vittora can also be had with it’s subwoofer.

On paper, the LaScala is the more similar (same horns, same
x-over frequencies, etc…) but this, on the other hand, will also make the lost
bass extension more obvious. The Belle
probably sounds more balanced given the higher midrange crossover and dropped
overall efficiency, making the lost bass less apparent (I’ve never had the opportunity
to listen to a Belle side by side).

And despite being a direct radiator, I always thought the
Cornwall’s bass a better match to the Khorns… am I the only one? Volti does offer a pre-packaged “cornscala” in his Alura...

ROb

[Lets see YOUR Home Theater:]

removed my photos, for some reason they all got cropped when uploaded...wtf??, lol

I believe you need to resize them to fit in a typical browser window before uploading them... otherwise they are displayed (partially) full size...

[Best disc ever]

Annie Lennox, Stills and Nash, Jackson Brown, Jeff Beck

Never heard of them before.

Well, I know Jack White and Beck? ... [A]

[Best disc ever]

D@mn... i'm still to young to buy this disk... []

[NOW I have seen everything, and I want one!!]

Got to luv the CataPlaysample playlist... with jems like "alive", "live and let die", "cemetery gates", "Dragula", Stairway to Heaven", "I would die 4u", "the Funeral", "Heaven"... etc... [<)]