kirkus
Responses from kirkus
| Influence of DC offset on bias Well, bias of course affects distortion performance, and I have seen many, many amplifiers where the final quescient bias level when warmed up varies with how much load there is on the amplifier when its warming up, and ends up being very differen... | |
| Benefits of a cardioid subwoofer? Complicating the discussion a bit is the fact the Basis sub doesn't appear to use a rearward-facing driver, rather it seems to have some vents on the sides which I assume is part of its pattern control. Also, the picture in the link of the Legacy ... | |
| Influence of DC offset on bias Hi Csontos . . are you experiencing differences in timbre or level between channels on some of your amps? If so, given the age of the GAS stuff, the first thing I would be looking for is dried-out electrolytics used for coupling caps, especially a... | |
| Influence of DC offset on bias Of your amplifiers, I'm only familiar with the circuit in the GAS amps . . . and both are fairly representative of a common-practice solid-state amp with an emitter-follower output. The complimentary diff-amp is kinda fancy but by no means unique,... | |
| Best 5.1 McIntosh separates Yep, Kal . . . I've had this exact combo offered to me several times for less, and this was 4-5 years ago.These systems were very nice, but they were traded in by the ton when Dolby Digital and DTS came along. You'll of course find premium dealers... | |
| Dedicated Line ....... my system SUCKS One thing to look at is the actual line voltage into the house.You might only have 208v service. It is unusual to see such voltage but it is out there.208 volts comes from wiring across two phases of 120v 3-phase service, which is only found in co... | |
| Best 5.1 McIntosh separates I think a MX130 or C39, plus a MC7106 amp, can easily get you there on that budget. Make sure the processor has been modded for a six-channel input (or it's a later MX130 that came with one stock).You can then use the 5.1 analog outs from your Opp... | |
| Does the port tuning frecuency limit x-max? The maximum excursion capability of a driver is dependent on the design of its voice coil, magnet structure, spider, and surround, and has (pretty much) nothing to do with the enclosure. This is the parameter referred to as "X-max" in the driver's... | |
| turntable motor speed All DC motors used for such a purpose have a tachometer and feedback regulation circuit that controls the motor voltage. It's most commonly built right into the motor itself (just like a cassette-deck capstan motor) but occasionally you'll find it... | |
| Help - Adcom GFA-545 works in mono only there appears to be mono summing going on inside the amp.Is it possible you have this amp switched into a "bridged mono" mode? | |
| Parallel Capacitors-Theoretical Question Hi Jay . . . the most basic model of a real-world capacitor is an ideal capacitor in series with both an inductor and a resistor. For a high-quality film cap, the inductance comes from the leads and the fact that it's impossible to acheive a perfe... | |
| Parallel Capacitors-Theoretical Question Speaking theoretically, the most predictable performance will be from two capacitors of the same manufacturer and series, and close in value - that is, the 6uF and the 7uF together. This is because their residual inductance and ESR will also be cl... | |
| New Transformer possible? For a quick fix, take two "C" clamps, and clamp down each side of the steel plates that make up the 'iron' of the transformer. If you go clamping around on an E-I core transformer, be sure to add insulation (i.e. a plastic washer) under one side o... | |
| replacing crossover with external one The L300 was a good speaker and is quite collectable, so you might make sure your changes are reversable. But I think that JBL's crossover designs of the era are a weak point, and there are significant improvements to be had with revisions.For a i... | |
| Why Don't We See More High Current Electronics? Fitting your criteria, I really liked the Moon W5 in sound, build quality, and bench performance when I had one on loan. The Bryston 3BSST is also a nice amp.The McIntosh MC7200 might also work, but their input impedances are usually like 22k. BTW... |