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mwhouston

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mwhouston last won the day on February 23 2016

mwhouston had the most liked content!

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About mwhouston

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  • Birthday 16/01/1952

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  1. I started with this setup about a week ago but swapped in “Intermezzo” (Dalek) a few days back. But now back with the 12” concentric Beymas and 6L6 SE UL wine box amp. I brightened up the tweeter horns in the Beymas to let 3 more dB through. They were a little strangled before. Brighter, better now. It’s amazing just how loud 2W will play with 98db of sensitive speakers.
  2. I got this which supports aptX-HD Bluetooth reception. My Samsung J4+ supports aptX transmitting so a perfect match. Has some voice alerts too. I do rarely use it but good sou d when I do. Pleased with the performance but I sure your Transmission supports aptX. https://www.ebay.com.au/itm/Auris-BluMe-True-HiFi-Bluetooth-Music-Receiver-Black-/172292920817
  3. Nice but the grills aren’t for me.
  4. Some other images of inside the amp. The PS is on its own sub-chassis and adds strength to the whole amp and some mechanical isolation.
  5. If unsure take the amp for two weeks, play it lots, and if for any reason you do not like it, return it for a full refund. Just pay postage both ways and return in pristine condition.
  6. “intermezzo” (Dalek) is out again with its UX-171A 1920s tubes. Driven by my tube/preamp/HP amp and 98db sensitive 12” Beyma concentrics. Played at moderate to good levels this 1/3rd (330mW) tube amp sound s sooo good on cello, voice and violin. https://retro-thermionic.blogspot.com/2013/03/intermezzo-1920-ux-171-power-amp.html
  7. It was the 300W “Precision” but from the same gene pool.
  8. Of course it is going to be different but doesn’t detract from either. Only way to find out.
  9. If not sold make a date via PM and have a listen early next week.
  10. Item: A powerful 150W SS DIY amp using the Holton Precision HPA-NXV200 amp modules. Location: Langwarrin 3910 Price: $1316 with donation and postage included to most capital city’s. Item Condition: As new, 9.5/10 Reason for selling: I have decided to stay with it’s bigger 300W brother. Therefore NLR. Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Built in a smart 3U 19” rack mount steel and Al black staple enclosure this powerful SS amp really impresses. Both in cool looks and absolute performance. No heatsinks are visible and handles are included. Thought this amp uses two silent running shock mounted cooling fans they are inaudible under normal listening at any distance. Holton power modules do many things very well but when it comes to absolute transparency, bass depth and control they exceed. No pops or thumps when turning on or off. Dead silent running. Ultra low distortion, extremely detailed with no glare or sheen. You hear right into the music with an extremely balanced presentation. Very, very impressive. I called the amp “fiih”. Specifications; fixed power cord with ferrite RF choke 10A RFI/EMI power filter inside steel and Al embossed in closure with handles fused and earthed enclosure Oversized internal heatsinks (0.12C/W) dual silent low turbulence slow running cooling fans 10A wiring oversize very heavy duty three-way speaker binding posts heavy duty gold plated RCAs low profile isolating rubber feet 16A power switch 80,000uf of 100V filter capacitance snubbed filter caps - X2s 10A diode bridge soldered directly to first caps to ensure high current on demand 300VAC toroidal power tranni 150W into 8ohms and 260W into 4 https://holtonprecisionaudio.com/products/hpa-nxv200l-r4-balanced-xlr-input-amplifier-module ELECTRICAL DISCLAIMER This product has not been manufactured by a qualified individual or company, therefore contains electrical circuits that do not necessarily comply with Australian Standards. I understand that as the seller, I may be liable to repercussions in the event of equipment failure. By advertising and selling this product, as the seller I also agree that I am solely liable, and the publisher of this website takes no responsibility for any injury or death resulting from, whether directly or indirectly, any accident that may happen as a result of the failure of the product being sold. If in doubt, seek the services of a qualified electrician to inspect the product to ensure it is safe for use Photos:
  11. Item: Altec 511B refurbished horns, FaitalPro compression drivers and boxes for horns. Location: Langwarrin 3910 Price: Horns alone; $400, Compression drivers; $400 and boxes for horns; $100. Item Condition: Pristine, as new 9/10 Reason for selling: bought a second lot so these are NLR. Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: I paid $500 for the 511Bs which are from the opera house but fully refurnished. They have been sand blasted and powder coated. And $512 for the Italian FaitalPro compression drivers - HF108R. These use polymer diagrams so no screeching like the original Altec drivers. Very dynamic and natural. The exterior of the horns have dampening which greatly improves the sound. The horns also sound better in the boxes. The boxes cost $200 but you don’t have to take them. I can sell the horns alone or with the compression drivers and will keep the boxes of not wanted. These horns and drivers have had very little use. Compression driver specs; Driver Type: High Frequency (HF) Driver Size: 1 in (25.4 mm) Voice Coil Size: 1.73 in (44 mm) Diaphragm Material: Keytone Ploymer Magnet: Neodymium Ring Impedance: 8 Ohm RMS Power: 60W Peak Power: 120W Sensitivity (1W/1m): 109dB Frequency Range: 1kHz – 20kHz Weight: 800 g N.B. Woofers not not included. Photos:
  12. Better than I thought let’s say 70W+ at low distortion into 8. https://www.verical.com/datasheet/stmicroelectronics-amplifier---audio-TDA7498TR-1690690.pdf
  13. has anyone tried one of these? https://www.ebay.com.au/c/2071053444
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