Equalizer for mac lion
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The variable Q of the two lower bands can be adjusted over a range of 0.2 (nearly five octaves) and 1.5 (just under one octave), while the upper mid spans 0.3 (nearly four octaves) to 2.6 (half an octave), and the top band 0.3 to 3 (just under half an octave). The top and bottom bands can also be switched from shelving to a peaking response, via small front-panel push-buttons. For those with a passion for the numbers, they are: Low band, 65Hz, 115Hz and 290Hz Low‑mid band, 205Hz, 500Hz, 840Hz and 1.76kHz High‑mid band, 560Hz, 1.2kHz, 3.1kHz and 6.1kHz and High band, 2.4kHz, 3.7kHz, 8.2kHz and 15.6kHz. The top three bands all have four frequency options, while the lowest band has just three - giving 15 frequency options altogether. The frequency ranges are switched rather than continuously variable, because of the need to insert different inductors to adjust the filter tuning, of course, but the four bands do overlap quite generously, to maximise usability. The review unit had a hole where the power LED was supposed to be (it had fallen back inside because it is only held in place by the goodwill of its connecting wires!), but there are no other lamps or illuminated buttons to indicate when the unit is working or bypassed (and the push-button status isn't at all obvious). A miniature toggle switch is used to power the unit, and two push-buttons provide independent channel bypasses to complete the facilities. The front panel is divided into four equaliser-band sections, each with a rotary switch to select the filter frequency, and continuously variable Q (bandwidth) and gain controls (the latter without a centre detent). The rear panel of the AM/CHA1 includes inputs and outputs on balanced TRS jacks.The rear panel carries the IEC power socket with an integral fuse holder and voltage selector, while four quarter‑inch TRS sockets handle the audio in and out. With this amount of iron in the signal path, it will come as no surprise to learn that the AM/CHA1 has something of a vintage sound character, with distinct warmth and sheen properties! That character is largely maintained even when the EQ is bypassed, which is useful if you want to add a bit of flavour to a mix.
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Amorphous‑core Lundahl transformers are available as a cost option, if preferred. These low‑loss coupling transformers use grain‑oriented iron‑silicon alloy laminations, with a 10k/10kΩ-impedance type handling the input and a 600/600Ω impedance for the output. The AM/CHA1's circuitry is actually based on a standard state‑variable filter topology, but uses carefully optimised, custom‑wound Cinemag inductors in the filter circuits, and Edcor PC‑mounting steel‑cored transformers for both the input and output stages. However, before you rush off to smash the piggy bank and count the penny pieces, this is still an expensive device in real terms - but it does represent good value for money for a product of this kind. However, the Black Lion AM/CHA1 was designed from the outset to be an original design, rather than a clone of something else, and to be more cost‑effective than is, perhaps, the norm for inductor‑based semi‑passive units. Of course, plenty of manufacturers have inductor‑based equalisers in their catalogues, from the classic Pultec and Neve designs (and their numerous clones), through to more modern API and Massenburg products - and many more besides, with most being very expensive, too. This 2U-high, rackmounting unit, which extends roughly 145mm behind the rack ears, is all very old‑school in concept and technology, but thoroughly modernised in construction with the use of surface‑mount, integrated-circuit gain stages and supporting circuitry.
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One of the company's latest in‑house designs is a two‑channel, transformer‑coupled and inductor‑based passive equaliser (but with active gain‑makeup stages), called (rather mysteriously) the AM/CHA1. The company's approach is that great‑sounding equipment doesn't necessarily have to be expensive, it just needs to be designed properly - and they are right about that, in my view.Īfter developing a good reputation and loyal following for their numerous product upgrades, Black Lion started to branch out and develop their own boutique products from scratch, with the declared aim of producing "excellent products at exceptional prices.” They're not mass producers, either: everything is done in house, and mostly by hand. Does a 'boutique' approach to building outboard have to mean inflated prices? Not according to this manufacturer.īlack Lion are a Chicago‑based company that started out developing and providing upgrades for other manufacturers' equipment - generally addressing the technical corners often cut in trying to bring a product to market at a budget price.