Bubo

chip shortages killed Onkyo Yes Virginia, There Will Still Be Onkyo AV Receivers The Onkyo we knew, the Japanese company with a history that dates back to 1946 and has been majority owned by the Ohtsuki family will cease to exist. Think of it as the soul of the company that’s lost. ...... But the Onkyo and Pioneer brands will continue to live on! The company’s audio/video business is owned by Voxx International and it even has a contract with Sharp to manufacture its AV products. ...... Premium Audio Co is a joint venture from Voxx and Sharp since September 2021 and runs several popular home Audio Video brands including Onkyo, Pioneer, Elite, Integra as well as Klipsch, HECO and Energy speakers. So, fans of home audio will still see the familiar Onkyo, Pioneer and Elite nameplate on AV receivers for some time into the future. Warranties will continue to be honored and its AV receivers and other equipment will continue to be made, provided they can fish for the chips required to assemble and fix them. Who knows, maybe under Voxx, Onkyo will be injected with new life and continue to live on and even prosper in the leaner, more adaptable form that today’s market demands. https://www.audioholics.com/news/despite-bankruptcy-onkyo-pioneer-elite-av-drives-on

Yes and no Equipment has to come up to operating temp It is either in spec or not it should be in spec when you turn it on and it reaches operating temp Electronics will drift over time, but are designed to stay in a certain performance range Because speakers have motion does motion change their characteristics ? Maybe materials become more or less stretchy, but it can't be much and be in spec I would have to say that after 15 min of use to operating temp that is your break in for tubes and solid state Speakers, I would have to hear from the materials vendors on their spec sheets it can't be much, or the speakers won't pass QC test ........

Buy some inexpensive class D amps parts express has some also plate amps for subs the pre amp controls the volume of the subs Enjoy your project subs

You are accustomed to the sound of the receiver and the integrated may be inferior analog tech peaked in the 1970s and receiver wars were on Audio engineering has the engineering part, but also some art to it. If female voice sounds natural quality is good piano tests the performance Slow piano better than fast beats on the amp

1 or 2 heresys in the center.....

I put my LaScalas on 4 inch wheels Puts the mid at ear level Easy to roll them out to work on them And as a bonus I can dust behind them more often then once a decade. heritage line, accept no others .......

Vinyl Sales Eclipse CDs For First Time Since 1987 by Tyler Durden Sunday, Mar 12, 2023 - 03:45 PM According to a new report by the Recording Industry Association of America (RIAA), vinyl records have experienced a resurgence in popularity, with sales outpacing those of CDs for the first time since 1987. RIAA's report, published on Thursday, stated that in terms of physical units sold in 2022, records surpassed CDs with a total of 41.3 million sales, while CDs had 33.4 million sales. The industry group said vinyl sales had experienced sixteen consecutive years of growth. The vinyl boom is back for several reasons. During the pandemic, when concert venues were forced to shut down, some artists and their labels released music on vinyl to enhance the fan experience without them having to leave the house and offered a new untapped income stream for artists and labels. "I think that it was something that labels saw as a 'We can do this to generate some income [during the pandemic],'" Lyndsey Havens, a senior editor at Billboard, told Gizmodo recently. "That's why you see a lot of live albums that were rereleased on vinyl or pressed on vinyl for the first time. It's just a really good way to generate some extra income and then I think fans were responding well to that and now they're demanding it from their favorite artists," Havens said. Last year, revenue generated from vinyl records increased by 17%, exceeding $1.2 billion. This growth was especially significant during the pandemic. RIAA said that vinyl contributed to 71% of physical format revenue. https://www.zerohedge.com/markets/vinyl-sales-eclipse-cds-first-time-1987

WOW

PS Given the years the K-horn and LaScala were designed Tube amps had limited power, and noise may have increased dramatically per additional watt of output. So the folded horn, may have been the way to overcome the amps and driver costs of the day. In modern times, a 2 driver high-efficiency short horn may be optimal and meet or exceed the measured performance goals, while keeping cost on target.

When does a LaScala cease to be a LaScala ? What Klipsch was very good at was measuring declining marginal returns in design and profitability With the underlying imperative that the speakers sound good for hours, weeks, and years. Using the LaScala design as a baseline, I believe the dimensions you have to experiment with are length, shape of the opening, and materials to achieve structural goals. A cement block may achieve zero resonance, but unlikely. I have limited wood working capabilities and all of my fingers. If it were me, I would buy 2 (4) sheets of 1 inch plywood, decent quality or MDF which I don't like. And use the rough plywood for the experiments, essentially the same process Kilpsch did 50 years ago. Better materials and veneer are I believe after thoughts. Deck screws and pure silicone calk would speed things along and make it easier to tear down and reconfig the cabinets. For example you could start out with 8 foot horn flares, and keep cutting the sides down taking measurements as you go. Measure and mark your cuts, then go around with a circular saw if you have a steady hand. Single and dual driver baffles for the dog house should be swap-able. As a practicle matter, I believe the designers at Klipsch, JBL and Altec tried to limit the depth of their non theater designs to approximately 2 feet. Folding obviously gave Klipsch more length. Altec 820c and probably other designs brute forced it with 2 drivers and 2 foot horns. Mantaray I believe was the 2nd or 3rd generation of this method with a two way crossover, giant upper flared horn and dual driver base with short horns maybe exponential flares. If you have space in the garage, unfold the horn in the mockups, making design changes faster, easier and cheaper. Hinges and calk may allow rapid experimentation and measurement. External 2x4 cross braces would certainly stiffen up the dummies. There is a 15 in low cost woofer that many on here use to freshen up their systems, I would score two of those so I could experiment with 1 and 2 driver doghouse configurations. Something both Klipsch and Altec experimented with and produced as products. 1 driver bins may be simply a cost savings measure using some engineering elegance, where brute force 2 drivers might sound a little better and punchier...... I'm visualizing 1 8ft horn, up on saw horses with dual drivers as the design to beat, as you cut away and alternate between 1 and 2 drivers. Kind of like the multi driver side mounted horns klipsch style. I am wondering if garage door weather stripping on the sides ( top and bottom ) and hinges would be good enough for experimenting. The engineers would always listen to me intently, take lots of notes, and get all excited when I was on the white board. When asked if they were going to do it my way, they frequently responded "great product idea", and we thought of a better way to design it while you were talking. Then run out the door to go to work ......

Learned something new, a PF lp I was unaware of. Let us know how it sounds.....

Been about a month of daily use since Deltronics in Woodridge IL rebuilt my MR78 circa 1980 tuner. My initial impression was the unit is as good as new or better. My impression a month later is the same. My experience with this shop on lots of my Mc and Yammy gear has been all positive. Apparently they have lots of happy customers, wait time is approx 8 weeks from check in. They have the Woodridge location off the Interstate I 355 and a Chicago City location. I use Woodridge. https://www.deltronics.com/

Same design concept as the Altec A-7 cabinits Infinite baffle ? Not sure if the bass is tighter, looser, deeper, or more efficient Suspect loser and more efficient.......

Male a diagram with specs for the amps, pre amp and speakers and post it here. Someone more knowledgeable than me can tell you if it's safe. Do the Fortes already have bi-amp capability or do the crossovers have to be modified or replaced ? My 2 cents

Sure I did something wrong, probably overpowered transformer I opened both units to inspect the relays for the specs may have gotten it wrong may have fried one of the diodes, causing massive feedback into the amp frying the output transistors

I fried two receivers with a dsp 1, proceed with caution. I'm sure it's something I did wrong, but wish I never put it in circuit. the power supply has to be exact is my guess, or it arcs and fries the amp section. funny no label on the switch nor clear instruction in the box.

Search the forum, the topic of Forte placement has been discussed endlessly in multiple threads. Short version, start 10ft apart and camber them in as you move them out. How far off the wall, lots of comments on that one, if I recall correctly it's about a foot, but don't take my word. Like any speakers, too far apart the sound falls apart. Sometimes bass is achieved by just adding a front firing sub.

It's weird they don't give us exploded bills of material with part numbers and a way to order them.

https://community.klipsch.com/index.php?/topic/214970-recommended-maintenance-for-a-1978-pair-of-heresy-1/#comment-2785344 PS I would replace with 6 or 8 screw connectors and use the outside two the leads on the inside are dangerously close.

Purchased mine from Bob Crites Call them to place the order or confirm the fit to your drivers may want you to place the order on line. https://critesspeakers.com/collections/all

Something new with a modern power supply ? What features are you looking for ? Equalizer, phono EQ, inputs for lots of different gear ? It's not tube, but if you score a McIntosh c-32 the swiss army knife of preamps you won't be disappointed. Is there a specific pre amp tube you are looking for ? Good hunting PS put a location in your avatar, doesn't have to be your street address. For the price I would try one of these cheapos, 900 4.5 star reviews can't all be wrong. Look at the table in this listing. This unit supports lots of tube rolling options. Might be a good intro to tubes and rolling for not a lot of bucks at risk. You can front end something like this with a passive RCA switch that supports 4-6 inputs and 1 output, I purchased one as a toy for something like $40 https://www.amazon.com/dp/B094W84SR5?psc=1&ref=ppx_yo2ov_dt_b_product_details https://www.amazon.com/Bluetooth-Preamplifier-Headphone-Amplifier-Audio/dp/B07TJS2DBT/ref=sr_1_4?crid=69Z9HRA1TFEF&keywords=tube+preamplifier+home+audio&qid=1677463460&sprefix=tube+preamp%2Caps%2C261&sr=8-4

Replace the squaker gaskets, they look like washers for a garden hose. They have dry rotted. The wires inside the speaker may have dry rotted, plan on replacing them. 14GA is plenty. Solder the wires to the spade connectors and shrink wrap the necks. Cheapo hardware store spade connectors are fine, nickel if you can find them. Gold solder spades or other exotic a may be a waste of money. Parts express has gold if you want them, I have used them and like them. Same results with cheapos. The connectors at the rear of the speaker are dangerously close, I would replace them and move them further apart or use one of the manufactured speaker connectors that will require increasing the size of the hole. I actually prefer the screw type connectors over the 5 way since I don't move the speakers every day. I wont be making any 3-4in round holes in the back of my cabinets any time soon. If you want 5 ways, and have someone who can cut new plywood backs and drill the holes go for it. Requires a table saw and all of your fingers. Local cabinet shop may do it for you after they have a laugh, perhaps for a few bucks out of their scrap. I always pay cash for the no charge jobs, no one has ever refused me picking up their lunch in advance with a $20........ I flipped the rear covers so the connectors are at the bottom. I like it, mine sit on end tables. Add some of the padding-fill from any fabric store to the bottom of the speaker 2 inches should be plenty for a little damping. Try the speaker with the damping in and out to see which you prefer. Make the fabric3-4 in wider all the way around to it leans up the sides. Flipping the woofers to account for the pull of gravity over 40 years sounds, good, I'll try it the next time I am in the speaker. Forgot to do it the last time. Rebuild or replace the cross overs, the life of the caps is 20 years. So they are overdue. Noticeably better sound on mine with the Crites crossovers. Others may sound better, but factory and Crites are all I have. Refresh the stain on the speakers, mine were walnut oil, I used WATCO to great effect. Others may be better, but I didn't try them and would just use Watco again. The squaker horn compression driver may require re-magnetizing, I didn't test mine they sound great so I left them alone. Maybe a future project. Your local pro audio shop or repair shop may be able to test and re-magnetize for you. Do phenolic diaphragms dry out over time, seems like they would. You can consider replacing with the same or titanium. Not sure why but I think titanium sounds different. Would love to test two speakers on mono side by side with female voice to see if what's left of my ears can hear the difference. Skylark by Ronstadt is my quick test for speakers, I've got a crush on you is a good second test if it passes the first. If she sounds seductive on Crush, you are good. If not, punt. Mine got new Crites crossovers, new wires with soldered cheapo spade terminals, new gaskets, back covers flipped, Watco walnut oil. When I have time will try the padding in one speaker on mono and use the balance control for test. Factory rear screw connectors scare me to death and need to be replaced when I remember to do it. May be use a second similar terminal offset, or a six or eight screw version of the same marked with nail polish for the black and red the others are blanks and can't do any harm. If larger terminal is good and covers the original holes, will fill the old holes with good quality calk and declare victory. Forgot to flip the woofers, another one on the list the next time I am in there. My Heresy 1 speakers sound and look superb, perhaps better sound than new.

Buy a used THX rated surround receiver Onkyo Integra and Pioneer cranked them out for a long time $200 should get you a totl with high quality DAC chips built in. Any Rev of Heresy on a coffee table or end table from Ikea for $9 on sale should eliminate the void and timing issues. Set up the AVR receiver for 3 front and subs and go from there. Buy a mic from parts express if you don't have one. Others on here know more than me about how to set up the mic..... My 2 cents.....

Looking at the design, I see that they used rectifier tubes Many would remove these in tube amps and replace with 2 diodes Not sure of the advantage of staying with a rectifier tube, since I believe solid state or just diodes outperform the tubes in any measurable way.

Congratulations on your new amp Cymbal strikes, bells, triangles are I believe excellent test of rise and fall performance. From zero to wide open, resonance, and then decay or complete drop. Like a square wave. The mids, to my taste, are best tested with a female voice, no autotune and no reverb, or as close as you can get to no reverb. The angel should sound like an angel. To my understanding, bass requires lots of readily available reserve power, and the ability to deliver it quickly. I assume the decware is not directly driving the subs. As to warm up, any unit should reach it's operating temperature range in a few minutes or less. I'm not a tube guy, but my understanding is that they are self-consuming. So there must be a range of performance when they are in spec, then hopefully gracefully fade away as they go further out of spec. I have to believe they are in their specified operating parameters the day they are new or they wouldn't pass test at the factory. There is probably a number of measured operating hours, before the tube goes out of spec. I was also listing to Dr John and that segment, enjoyed it. My two cents...... M