This is probably a stupid question................but...........
Sea
Posts: 317
I am in the process of fully modding and updating a pair of 2.3tl's. I participated in the last 1000va Avel Lindberg transformer group buy and love the way it improved the sound of my 1C's. But I do not like the black case sitting it the floor.
So my question. What the downsides of mounting a transformer in the bottom of one of the 2.3tl cabinets and wiring so the signal passes through the transformer.
Potential issues I can think of are:
1. It changes the weight of one of speakers significantly but that in itself should not create any problems.
2. The interior volume of one of the cabinets will be decreased making it slightly different from the other.
3. The wire length on either side of the transformer would be different. I am not sure if this would matter or not.
What do you guys think?
So my question. What the downsides of mounting a transformer in the bottom of one of the 2.3tl cabinets and wiring so the signal passes through the transformer.
Potential issues I can think of are:
1. It changes the weight of one of speakers significantly but that in itself should not create any problems.
2. The interior volume of one of the cabinets will be decreased making it slightly different from the other.
3. The wire length on either side of the transformer would be different. I am not sure if this would matter or not.
What do you guys think?
Main-Carver TFM35(2),Carver C11 ,Carver SD/A 360 CD,Carver TX11 ,Grace Digital Tuner, Pioneer PL707 TT,Polk SDA1C
Downstairs -Carver M1.5t, Carver C1 Pre, Carver TX10 Tuner, Carver TL3200 CD Player, Dual 1009 TT,Polk SDA SRS 2.3tl
Study - Carver AV634 Amp, Carver CT7 Pre, Carver DTL50 CD Player, Polk RTA12c
Downstairs -Carver M1.5t, Carver C1 Pre, Carver TX10 Tuner, Carver TL3200 CD Player, Dual 1009 TT,Polk SDA SRS 2.3tl
Study - Carver AV634 Amp, Carver CT7 Pre, Carver DTL50 CD Player, Polk RTA12c
Comments
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Weight won't be a problem.
Internal volume will be less, but doubt you would notice.
Wire length may pose a problem. essentially no added resistance on one side, and cable resistance on the other.
If you remove the transformer from the case, you're removing RF Shielding. The wood cabinet offers no shielding at all.
Why not build or buy a decorative wood case and put the metal case inside it.Home Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
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dhsspeakerservice.com/ -
Get use to the box on the floor.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
Not a stupid question, but as F1nut suggests, not a good idea.Family Room, Innuos Statement streamer (Roon Core) with Morrow Audio USB cable to McIntosh MC 2700 pre with DC2 Digital Audio Module; AQ Sky XLRs to CAT 600.2 dualmono amp, Morrow Elite Speaker Cables to NOLA Baby Grand Reference Gold 3 speakers. Power source for all components: Silver Circle Audio Pure Power One with dedicated 20 amp circuit to main panel.
Exercise Room, Innuos Streamer via Cat 6 cable connection to PS Audio PerfectWave MkII DAC w/Bridge II, AQ King Cobra RCAs to Perreaux PMF3150 amp (fully restored and upgraded by Jeffrey Jackson, Precision Audio Labs), Supra Rondo 4x2.5 Speaker Cables to SDA 1Cs (Vr3 Mods Xovers and other mods.), Dreadnaught with Supra Rondo 4x2.5 interconnect cables by Vr3 Mods. Power for each component from dedicated 20 amp circuit to main panel, except Innuos Statement powered from Silver Circle Audio Pure Power One. -
Leave the box on the floor and put a small statue on it, or something decorative like silk flowers. I have a Buddha on mine. You won't even notice it."Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills/jantzen inductors, Gimpod's boards, Lg Solen SDA inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR BP's, upgraded IC Cable, Black Hole Damping Sheet strips, interior of cabinets sealed with Loctite Power Grab, AI-1 interface with 1000VA A-L transformer
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Be proud of the finely crafted box that Larry made. I wish my custom version was more visible instead of half hidden as it says bada.s.sPolitical Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
That's the last thing I'd think of doing is hiding it inside the speaker cabinet. I was in the same position and didn't like the idea of 1 box either as it's not symetrical. Perhaps another black box even if it's an empty one to balance things out?
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I tried a few ideas to.......an independant stand and statutes on top of the box wasn't what I was looking for. Through that experimentation though I did find that the dreadnaught does sound better (at least it does to me) on it's side. So this is what I've settled on for now and I'm pretty happy with it. The tables and lamps are matching and draw attention away from the single box in the back.
The box isn't noticable on the right unless you're looking for it but it's easily accessible should the need arise. -
What are your speakers sitting on. I like the way it looks.
- SDA 2BTL · Sonicaps · Mills resistors · RDO-198s · New gaskets · H-nuts · Erse inductors · BH5 · Dynamat
- Crossover upgrades by westmassguy
- Marantz 1504 AVR (front speaker pre-outs to Adcom 555)
- Adcom GFA-555 amp · Upgrades & speaker protection added by OldmanSRS
- Pioneer DV-610AV DVD/CD player
- SDA CRS+ · Hidden away in the closet
- SDA 2BTL · Sonicaps · Mills resistors · RDO-198s · New gaskets · H-nuts · Erse inductors · BH5 · Dynamat
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Thanks; They're the bottom and top from a component stand that I had. I put them there mainly to keep the floor from getting damaged from the spikes. They blended in well and make for an even more solid base for the 1.2s.What are your speakers sitting on. I like the way it looks.
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I did not even notice the Dreadnaught at 1st.2 ch- Polk CRS+ * Vincent SA-31MK Preamp * Vincent Sp-331 Amp * Marantz SA8005 SACD * Project Xperience Classic TT * Sumiko Blue Point #2 MC cartridge
HT - Polk 703's * NAD T-758 * Adcom 5503 * Oppo 103 * Samsung 60" series 8 LCD -
I guess I did a good job then. I'm not exactly thrilled with the lava lamp look but they'll have to do until I find something a bit more fitting.I did not even notice the Dreadnaught at 1st.
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Install LEDs in it. Have them dance around with the audio levels and frequency.
Guests love tiny flashing lights. -
If you have a component rack, you could always make it one of the component stack.____________________________________________________________
polkaudio Fully Modded SDA SRS 1.2TLs + Dreadnaught, LSiM706c, 4 X Polk Surrounds + 4 X ATMOS, SVS PB13 Ultra X 2, Pass Labs X1, Marantz 7704, Bob Carver Crimson Beauty 350 Tube Mono Blocks, Carver Sunfire Signature Cinema Grande 400x5, ADCOM GFA 7807, Panasonic UB420, Moon 380D DAC, EPSON Pro Cinema 6050 -
That looks like the same pieces to a stand i have. I picked mine up at a thrift store. it looks pretty cool but is kind of a crappy stand. i think it originated from Wal-Mart. I have kept my stand actually but made some mods to it and plan to use it in a secondary system. i repainted it, filled all tubing with dry sand, am now in the process of installing studs in shelf locations instead of the suction cup things. Then i can make some additional bracing from front to back. I plan on using some small aluminum angle for this and then floating the shelves on the angle and laying the glass over a layer of felt on top of the shelving. This should further float the surface of the shelf and deaden the galss. I know its still nothing fancy but should sound pretty decent for a cheap rack.motorstereo wrote: »
If con is the opposite of pro, is Congress the opposite of Progress?!
Monitor 5Jr, Monitor 5, RTA12, RTA 15TL, SDA 2A, 1c, SRS 2, 1.2TL, CRS, Atrium. -
The main reason i would not mount transformer in one cabinet is that the system would then be electrically lopsided. We tend to pay attention to many details to be sure each channel is as symetrical as possible to get the best sound we can. If this type mounting were used it would be lopsided due to the extremely short wiring for the one speaker and comparatively long wiring for the other. I would use an external box. and try to center it as best as possible between the cabinets and use an equal amount of wiring to each side.If con is the opposite of pro, is Congress the opposite of Progress?!
Monitor 5Jr, Monitor 5, RTA12, RTA 15TL, SDA 2A, 1c, SRS 2, 1.2TL, CRS, Atrium. -
Mr. Bubbles wrote: »
That looks like the same pieces to a stand i have. I picked mine up at a thrift store. it looks pretty cool but is kind of a crappy stand. i think it originated from Wal-Mart. I have kept my stand actually but made some mods to it and plan to use it in a secondary system. i repainted it, filled all tubing with dry sand, am now in the process of installing studs in shelf locations instead of the suction cup things. Then i can make some additional bracing from front to back. I plan on using some small aluminum angle for this and then floating the shelves on the angle and laying the glass over a layer of felt on top of the shelving. This should further float the surface of the shelf and deaden the galss. I know its still nothing fancy but should sound pretty decent for a cheap rack.motorstereo wrote: »
Yes I'm sure mine was the same stand as yours. I had done the same thing filling those tubes up with play sand. I replaced the suction cups with 1/4-20 bolts and used scrap pieces of kitchen countertops for my shelfs instead of the glass ones. The rack itself is long gone now. But I couldn't throw those top and bottom pieces out. They actually work quite well in this situation and they also keep things from bumping the bottoms of those precious speakers as well. -
motorstereo wrote: »
Let me ask a potentially dumb question now. I've never understood the theory of how sitting spiked speakers on a slab of granite, slab of whatever etc. When its still sitting on carpet. Seems like it negates the intended purpose of the spikes. To couple the cabinet to the floor. Seems to me if the speaker is sitting on a slab on top of carpet. Its still "floating" on that carpet just like a non spiked speaker sitting directly on carpet is.
Perhaps I am over thinking this.
--Gary--
Onkyo Integra M504, Bottlehead Foreplay III, Denon SACD, Thiel CS2.3, NHT VT-2, VT-3 and Evolution T6, Infinity RSIIIa, SDA1C and a few dozen other speakers around the house I change in and out. -
Seems to me if the speaker is sitting on a slab on top of carpet. Its still "floating" on that carpet just like a non spiked speaker sitting directly on carpet is.
BINGO!
Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
So you think its a useless to do as well?--Gary--
Onkyo Integra M504, Bottlehead Foreplay III, Denon SACD, Thiel CS2.3, NHT VT-2, VT-3 and Evolution T6, Infinity RSIIIa, SDA1C and a few dozen other speakers around the house I change in and out. -
It certainly will not give the same result as spikes in direct contact with the actual floor.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
Perhaps my cell pic doesn't show it that well but those 3/4" bottoms are securely attached to the luan flooring (that's not carpet) where they make for an even more secure base. That's the exact spot where those 1.2s will be spending the rest of their lives so those bases do double duty as a more secure base as well as a bit of protection for the bottoms of the 1.2s.
Yes I agree if you plop an unsecured granite base on top of a carpet and set your spiked speakers on top of it there wouldn't be anything to be gained. -
Sometimes it is preferable to NOT couple the speakers to the floor. This will depend greatly on the construction of the room and floor/ subfloor materials. All these things relate to the speed of sound through differing materials as well as resonances created by these sounds.If con is the opposite of pro, is Congress the opposite of Progress?!
Monitor 5Jr, Monitor 5, RTA12, RTA 15TL, SDA 2A, 1c, SRS 2, 1.2TL, CRS, Atrium. -
I'm thinking I would at the very least be securing a couple of 4x8 sheets of 5/8 or 3/4 plywood under your rig. You could trim the edges with 1/4 round to keep it from being a tripper. Of course better yet would be to overlay the entire floor. I hate a spongy floor too and added sister joists, bridging and another layer of subflooring in my upstairs rooms.
