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Bubo

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Posts posted by Bubo

    Advice on buying Heresy II (1985?)

    in General Klipsch Info

    Posted

    On 1/26/2021 at 4:41 PM, SenorPwnador said:

    Hey all, I'm just starting to put together a hobby room/man cave space, and an opportunity to buy a pair of Heresy II floor speakers from 1985. Is there a way for me to test them without dragging out a receiver/amp to the sellers home? Also, is there anything that is a common issue with these that I should be on the lookout for? Images attached here.

     

    Bring your own amp and music you know with some short cables you may be on a table top

    Take the grills off and inspect the surrounds and speakers

    Look at photos of H2s with the Grills off on line, so you know what they look like

    Check the rears for the inspection stickers and serial numbers

    The Fives — separate phono preamp?

    in 2-Channel Home Audio

    Posted

    Rolls Belari has lots of options for desktop and rack pro gear

    gets generally good reviews, I haven't owned one

    but would consider them if I needed product

    Tube and SS phono pre amps MM and MC

    https://rolls.com/products/bellari

     

    ART DJPREII Phono Preamplifier

    This one is also worth looking at, very popular

    https://images-na.ssl-images-amazon.com/images/I/71rdJHaRTSS.pdf

    https://www.amazon.com/ART-DJPREII-Phono-Preamplifier/dp/B000AJR482/ref=psdc_689995011_t2_B002TD4GME

    Anybody Not Using A Preamp?

    in 2-Channel Home Audio

    Posted

    I ran a CD player directly into a Yamaha MX-600 amp sounded great, the amp had gain control

    Same CD player into a Yamaha DSP A-700 early Surround amp, which has a volume attenuater built in, sounded great.

    Any amp that has pre amp in can be fed directly from your DAC, CD player or other.

    There is also the direct button on lots of gear that bypasses all the pre amp tone and eq controls, sounds clearer.

    On surround amps that have the direct feature, check the block diagram, decoding in the amps DAC then on the bus to the amp section sounds quite good

    Food Porn

    in Lounge

    Posted

    Angelica Grill

     

    My business contact in SP,  moved in across the street from this place, after 3 years he still had the original six pack of beer in his fridge with zero food.

     

    Sao Paulo,  has the most good restaurants in the world IMHO

     

    caipirinha-recipe-759290-hero-01-d599e69

    Original recipe yields 1 servings
    Ingredient Checklist
    • ½ lime, quartered
    • 1 teaspoon white sugar
    • 2 ½ fluid ounces cachaca
    • 1 cup ice cubes

     

    angelica-grill.jpg

     

    58f8ef79e4b03ec150e90af7.jpg&w=710&h=462

    • Like 1

    The last Blu-ray you watched.

    in Home Theater

    Posted

    3 hours ago, Schu said:

    ^I am going to have to catch that... I LOVE LOVE LOVE french cinema.

     

    I got Umbrellas of Cherbourg and Le Samourai last year and both are magnificent!

     

    Good French TV Series follows Detectives through the French system as they work cases.

    Lots of the personality stereo types, which are part of French Cinema

    First season they are carried away with the gross crime scenes FX, dial it back a bit in later episodes

    Enough seasons to get you to March if you keep it to one a day.

     

    Spiral (French: Engrenages, pronounced [ɑ̃ɡʁəˈnaʒ]) is a French television police procedural and legal drama series following the work and the private lives of Paris police officers and lawyers and judges at the Palais de Justice, Paris. It was created by Alexandra Clert for the TV production company Son et Lumière.

     

    https://www.imdb.com/title/tt0477507/?ref_=nv_sr_srsg_0

    spiral-bbc-four.jpg

     

    Cambridge AXA35 or AXR85 vs Emotiva TA-100 vs Marantz slim for Forte II

    in 2-Channel Home Audio

    Posted

    36 minutes ago, SoundsGreat? said:

    @Bubo   If I don't like it, perhaps I can sell later, or move to the even more visible (but less sonically important) part of the house?  Who knows.

    Either here or in the AK Klipsch Threads we had two people looking for some encouragement to buy some LaScalas, which are quite large. Both had the same home harmony concerns too.

     

    Somewhat sheepishly the poster did move on the LaScalas

    He worked and his wife was home

    Wasn't sure how she would react

     

    After a few months, someone Bumped the thread to ask him what happended

     

    After two months he asked his wife if he should sell them, wifey had replied

     

    "Over my dead body"

     

    Turned out she had them on all day while was at the office, every day

     

     

    Cambridge AXA35 or AXR85 vs Emotiva TA-100 vs Marantz slim for Forte II

    in 2-Channel Home Audio

    Posted

    I don't know all of the Mfgs High end designations but

     

    Pre HDMI connectors sell cheap

    read the reviews on Audio Review

    CNET will come up with the Model and Specs

    HiFi Engine also has lots of good info.

    If you see one you really want, you may want to suck it up and pay $100-200

    instead of waiting months while they keep listing it. At this price make sure they give you the remote or no deal. Be sure to ask for the manuals and box if they have it.

    Bring your own small throw away speakers 8 Ohm with short cables

    and a source with cable and cheap headphones to jack in

    If it doesn't come out of DC protect walk away and wait for one that works

     

    When you get it home, take the lid off, blow it out with compressed air outside, inspect capacitors for bulges and leaks, board for hot brown spots, DC offset on the pre-amp outs and amp outs against Service manual specs from hifi engine.

    Then run it for a few weeks with some disposable speakers before connecting to your good speakers.

     

    SONY ES

    Pioneer Elite (pre elite surrounds are excellent early 2000s)

    Yamaha pre Class D amps A1 A1000 etc 50lbs,

    Marantz

    Others

     

     

    If I see one of these I won't hesitate to buy it

    Yamaha DSP A-1 1998-99

    https://www.hifiengine.com/manual_library/yamaha/dsp-a1.shtml

    Yamaha DSP A- A-2 etc

    https://www.hifiengine.com/manual_library/yamaha.shtml?category=av-amplifier

     

    I wouldn't buy a 100VAC Japanese model, but a good review site

    https://www.audiosciencereview.com/forum/index.php?threads/yamaha-a-1-vintage-amplifier-review.9576/

    I picked one of these up for $14

    Pioneer VSX4900S (4950) Specifications

    Tuning range: FM, MW

    Power output: 100 watts per channel into 8Ω (stereo)

    Surround output: 100W (front), 20W (center), 18W (rear)

    Frequency response: 5Hz to 70kHz

    Total harmonic distortion: 0.05%

    Input sensitivity: 2.5mV (MM), 150mV (line)

    Signal to noise ratio: 75dB (MM), 97dB (line)

    Output: 150mV (line)

    Video Connections: composite

    Dimensions: 420 x 125 x 334mm

    Weight: 9kg

    Accessories: remote control

    Year: 1991

     

    I paid $50 for one of these, world class stereo amp

    Definitely worth paying $300 to recap, clean and adjust to spec, world class Phono section, world class headphone output

     

    Yamaha A-1000 (1020) Specifications Class A or AB

    Power output: 120 watts per channel into 8Ω (stereo)

    Frequency response: 20Hz to 20kHz

    Total harmonic distortion: 0.005%

    Damping factor: 90

    Input sensitivity: 0.16mV (MC), 2.5mV (MM), 150mV (line)

    Signal to noise ratio: 80dB (MC), 94dB (MM), 106dB (line)

    Channel separation: 70dB (MM), 65dB (line)

    Output: 150mV (line)

    Dimensions: 435 x 146 x 424.5mm

    Weight: 13kg

    Year: 1983

    https://www.hifiengine.com/manual_library/yamaha/a-1000.shtml

    Speaker Cable Guage & Material

    in 2-Channel Home Audio

    Posted

    I was happy with 16GA Lamp cord for 35 years

     

    Then I discovered O free 12 GA speaker cables

    and have to had some, pricey the one that I purchased.

     

    Then for everything else, and there is a lot of other gear

    I use my lamp cords, which still  sound  fine to me

     

    For in wall or out of wall the Belden in wall twisted pair is

    probably superior, but not sexy laying all over the floor.

     

    I understand Coax, and can understand the advantages

    I have run lots of RG6 for my FM Radio project

    I wonder if they have banana plug terminators for RG6 ?

     

    I am also happy with the old style wire clamp connectors

    that were standard on all the high end gear in the 70s and 80s

    How often do you unplug the speakers from the wires ?

     

     

    Speaker Cable Guage & Material

    in 2-Channel Home Audio

    Posted

    Like the golden Capacitor, the Golden Speaker Cable

    Searched Speed of Light vs Speed of Electricity in Copper Cables

     

    These are Coax discussions, but you can extrapolate to speaker wire

     

    Q

    If I arranged an experiment where light raced electricity what would be the results? Let's say a red laser is fired at the same time a switch is closed that applies 110 volts to a 12 gauge loop of copper wire with a meter at a distance of ten meters. Also, does the speed of the electricity depend on the voltage applied or the resistance of the conductor? For this test let's say the distance is ten meters through air. I'm not looking for an exact answer. An approximation is fine.

    electricity speed-of-light electric-current speed conductors

     

    A1

    A standard demonstration is sending an electrical pulse into a cable a few hundred meters long. The incident and reflected pulses can be visualized on an oscilloscope, separated by about a microsecond, strongly dependent upon cable length, allowing one to determine the speed of signal propagation in the cable. – Smartybartfast

     

    A2

    The speed of electricity is conceptually the speed of the electromagnetic signal in the wire, which is somewhat similar to the concept of the speed of light in a transparent medium.

     

    So it is normally lower, but not too much lower than the speed of light in the vacuum. The speed also depends on the cable construction. The cable geometry and the insulation both reduce the speed.

    Good cables achieve 80% of the speed of light; excellent cables achieve 90%. The speed does not directly depend on the voltage or resistance. However, different frequencies have different attenuation. In your example, the very moment of switching on represents a high frequency front that will be attenuated. While at the input the voltage would increase very fast, at the output it would increase gradually, as if with a delay. It is not really a delay per se, because the initial low level signal would get there almost with the speed of light, but its amplitude would only gradually increase and reach the full voltage with a substantial delay that would depend on the cable and circuit impedance (mostly on the cable inductance). If you use a high speed coaxial cable (like a 3GHz satellite TV cable) instead of a wire, the delay would be much shorter (80-90% of the speed of light to the full voltage). Hope this helps.

     

    https://physics.stackexchange.com/questions/358894/speed-of-light-vs-speed-of-electricity

    https://cdn.shopify.com/s/files/1/0986/4308/files/Cable-Delay-FAQ.pdf

    creative-push.jpg

     

    What Is The Speed Of Electron In A Current Carrying Conductor?

    The electron cannot win the race in vacuum, let alone inside a conductor. The electron cannot travel at the same speed as light for the simple reason that it has mass. Light is the fastest thing in the Universe because it’s massless; it carries with it no baggage and exhibits absolutely no inertia that hinders its motion.

    https://www.scienceabc.com/nature/what-is-the-speed-of-electricity.html

    electromegnetic-wave.jpg

     

     

     

     

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