kijanki
Responses from kijanki
| Your fast is your amp f rom 0-60 .? Abal - any piece of gear sounds better after few minutes but sometimes it is combined effect of, for instance, speakers sounding better (tweeters' ferrofluid getting warmer etc). In case of the class D it probably achieves full temperature of outp... | |
| CD player NOT made in China under $1,000? Trelja - I agree, good design and management is the main factor. People can be trained including quality control.Waryn is afraid of CD player "Made in China", but he should be afraid of Chinese CD players. Rowland uses Icepower boards manufactured... | |
| Confused by ICE applications Jeff Rowland hasn't released bad product in over 20 years. When he switched all amplifiers production to Icepower technology I seriously got interested and eventually bought one. If it's good enough for Jeff Rowland it's good enough for me. In add... | |
| CD player NOT made in China under $1,000? Trelja - It's amazing that this company is still in business. I'm surprised by better quality of hand soldered components than SMT. My experience is different. SMT process is much better controlled than hand soldering. Company I work for had a lot... | |
| CD player NOT made in China under $1,000? Trelja - where do you see 75% failure rates? Cambridge Audio manufactures in China and there failure rate is not so high. Cambridge design engineer once told me that manufacturing their gear in UK would raise price 2x.CNC is a good thing. People h... | |
| Confused by ICE applications According to one of the editorial reviews (can find it) Bel Canto's S300 suffers thin lower midrange but after placing it on anti-resonance cones sound becomes fuller. Rowland's case is milled from billet of aluminium. | |
| Burr Brown OPA 2143 vs NJM2068 Input offset current is 11nA typ and offset voltage 0.1mV. Total of 0.3mV giving generous 10k unbalance. Gain after DAC is practically none. Sub 1mV offset might be a problem for some power amps but not for mine (5Hz-65kHz). | |
| Single driver speakers - opinions Mariusz - he is my countryman as well but he operates in Massachusetts and it is not walking distance from where I am. I will take you on this offer - didn't you say 75% discount? | |
| Burr Brown OPA 2143 vs NJM2068 Typical bias current for LM4562 is 10nA. Taking into account possible unbalance of 10k we get 0.1mV unbalance. LM4562 has excellent AC characteristics but the sound is what matters. Benchmark uses it as a driver for XLR outputs because of the abil... | |
| DAC1 or DAC1 USB? Benchmark updated xlr output stage with stronger driver LM4562 (and changed/lowered values of divider network) on DAC1 USB. Non USB DAC1 has probably still older NE5532 but calling Benchmark is the best option. | |
| Single driver speakers - opinions Mariusz - I checked Lowther website and found that EX series speakers go as high as $2k a piece. Some of designs they show use 2 speakers per box = $8k in speakers alone (I like to have the best). One of the titles of their FAQ is "Why bass reflek... | |
| Confused by ICE applications Magfan - there is still some residue (about 1%) of 400 kHz but it is not harmful. Switching transients were already removed by output filter and 1% residue of 400kHz will radiate at 1/4 wave if speaker wires are longer than 615 feet. | |
| Burr Brown OPA 2143 vs NJM2068 I was refering to Joaco post about power amp that has TL081. As for 5532, it depends - if it's thin sounding Philips amp I would replace it, but if it is TI amp I would leave it. But if your amp has 5532 it probably has output capacitor (like Benc... | |
| Confused by ICE applications Magfan - about half of Icepower modules have built in SMPS including mentioned 200ASC used in Rowland's 102, Bel Canto S300 and PS Audio Trio.SMPS can put as much power thru 2" toroid at 100kHz as 10" dia, "big nice Toroid" at 60 Hz. In addition 1... | |
| Burr Brown OPA 2143 vs NJM2068 What's wrong with using the original part? - without going into technical stuff let just say that Texas Instr. introduced this part in October 1976 and LM4562 was introduced around 2006. Not only 30 years difference but also TL081 was design as un... |