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| | Recording Industry Association of America - Wikipedia, the free encyclopedia |
 | | Its primary purpose at that time was to administer the RIAA equalization curve. | | | As a result, the RIAA must now file individual civil suits against each accused file-sharer, and the ISP and alleged file sharer have many more legal avenues for preventing disclosure of their identity, making the entire process much more expensive, slow, and complicated for the RIAA. | | | The RIAA and its member groups argue that Internet distribution of music, without the consent of the owner of the copyright in that music, not only detrimentally affected the profits of their members, but the careers of current and future artists as well, due to possible stagnation of the music industry from lack of profitability. |
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http://en.wikipedia.org/wiki/Recording_Industry_Association_of_America
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| | PAiA: riaa Phono Preamp |
| | The network of R4/C4 and R5/C5 actually form the riaa equalization response. | | | To restore the recovered signals frequency response, de-emphasis is required and this is the function of the PAiA riaa pre-amp. | | | The frequency response curve of the 9802 Stereo Phone-Pre conforms to the Recording Industry Association of America (riaa) standard. |
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http://www.paia.com/riaa.htm
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| | B2 Spice and RIAA Equalization |
| | The real-world technique is to use an inverse RIAA equalization network in series with the phono preamp under test. | | | To test the accuracy of a preamps equalization, just place the inverse RIAA equalization transfer function in series with the circuit under test, either before or after. | | | A/D Spice, we can readily define the RIAA transfer function that was originally impose on the record as a standalone black box function, distilling just the mathematical transfer function of the RIAA equalization. |
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http://www.beigebag.com/case_riaa_2.htm
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| | Products: Turntables, Tonearms Cartridges & Accessories: Accessories -- Hollywood Sound |
| | The EV1 is a separate phono equalization preamplifier designed to provide the additional gain and RIAA equalization that modern phono cartridges require. | | | Designed to precisely track the prescribed RIAA equalization curve, the Premier Fifteen assures absolute tonal accuracy High gain circuits, carefully engineered for low noise, accommodate a wide range of moving coil and moving magnet cartridges. | | | The EF1 is a separate phono equalization preamplifier, designed to provide the added gain and RIAA equalization required by modern phono cartridges. |
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http://www.hwdsound.com/products/product_Accessories.htm
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| | DANIELS AUDIO |
| | The phase compensated RIAA equalization introduces, in addition to the inverse amplitude compensation, a phase shift which is roughly the opposite of that introduced during the recording process. | | | The Daniels Audio phase compensated RIAA equalization stage enables the record to retain most of the phase information of the original master tape. | | | When compared to the conventional RIAA equalization, the soundstage, dynamics, and image specificity are markedly improved. |
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http://www.danielsaudio.com/preamp_phono.htm
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| | Plug phonograph jack into only phonograph inputs |
| | RIAA stands for Recording Industry Association of America, and equalization is a process applied to the signal coming from the phono cartridge to correct it. | | | The RIAA equalization process corrects this so the music is reproduced correctly. | | | The preamp will apply RIAA equalization and increase the voltage so your turntable will work with a line level input on your receiver. |
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http://www.post-gazette.com/interact/20030220lindich0220p1.asp
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| | RIAA equalization - Wikipedia, the free encyclopedia |
| | The RIAA equalization curve has operated as a de facto global industry standard for the recording and playback of vinyl records since 1954. | | | A solution in this case is to buy a special preamplifier which will adapt a magnetic cartridge to a standard line-level input, and implement the RIAA equalization curve separately. | | | RIAA equalization is not a simple low-pass filter. |
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http://en.wikipedia.org/wiki/RIAA_equalization
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| | FAQ |
| | Removing this equalization affect (called the RIAA curve) and restoring the music's original frequency response curve during playback is an important part of the phono preamp's job and differentiates it from other preamps used for microphones and musical instruments, which provide gain but no other modification of the original sound quality. | | | Proper RIAA re-equalization during playback is a must in faithfully producing the original musical content without coloration or distortion. | | | Fidelity will be only as good as a 78 is capable of providing (but far superior to the ceramic option), and remember that your phono preamp is mindlessly applying RIAA re-equalization in error to what you'll be hearing, since 78s had no or only rudimentary equalization applied during production. |
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http://www.audioreplay.net/faq.html
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| | Recording Industry Association of America - Wikipedia, the free encyclopedia |
| | The RIAA was formed in 1952 primarily to administer the RIAA equalization curve. | | | As a result, the RIAA must now file individual civil suits against each accused file-sharer, and the ISP and alleged file sharer have more legal avenues for preventing disclosure of their identity, making the entire process much more expensive, slow and complicated. | | | Hilary Rosen, the RIAA's president and chief executive officer from 1998 to 2003, was an outspoken critic of peer to peer file sharing, and under her direction, the RIAA waged an aggressive legal campaign trying to eliminate illegal file-sharing worldwide. |
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http://en.wikipedia.org/wiki/RIAA
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| | Review of Re-Mastering Equalizer |
| | Since the basic principles of phono equalization have always been the same (at least when equalization was used), all the vintage record EQ curves obtainable with the Re-Equalizer resemble the RIAA curve enough so that I had to label it, so you can tell which curve is which. | | | As I explained earlier, since this device introduces the difference between RIAA equalization and other playback curves, setting both switches to RIAA should result in flat response if I feed my test signals into the Re-Equalizer without using a phono preamplifier ahead of the device. | | | Even if you knew what the differences were between RIAA and the settings you need for certain old records, you would have a hard time arriving at those required curves with any degree of accuracy using typical bass and treble controls or even graphic equalizers. |
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http://www.smartdev.com/LT/Review_remaster.html
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| | The Tube CAD Journal: RIAA EQ Preamplifiers |
| | Passive RIAA equalization means brute force equalization: the frequency response is tailored to fit that of the RIAA curve by varying the amount of attenuation at different frequencies through a complex RC network. | | | The alternative to active equalization is passive equalization. | | | means the frequency response is tailored to fit that of the RIAA curve by varying the amount of the feedback signal returned to the input (i.e. |
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http://www.tubecad.com/articles_2002/RIAA_Preamps_Part_2
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| | Bottlehead Tube Tape Head Preamp |
| | Between the two stages there is a passive RIAA LP equalization network composed of a series resistor R1 of 66Kohms, shunt capacitance C2 a composite of a.01uF (10nF) and a.0012uF (1.2nF) capacitor in parallel, and a series-shunt network composed of R2 and C1, 9.64Kohms and.033uF (33nF) respectively. | | | The tape head preamp was constructed from a Bottlehead Seduction phono preamplifier kit, with minor modifications to the circuit to convert the stock passive RIAA equalization network to a passive NAB 1/4" 7.5/15ips equalization network. | | | These components determine the time constants and hence corner frequencies of the RIAA curve in the low end, the midrange and the treble. |
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http://www.bottlehead.com/et/adobespc/Seduction/bottleheadtapeheadpreamp.htm
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| | Welcome to my web page |
| | First, it’s been discovered by Wright [2] that the actual equalization curve used by the Neumann cutting lathe has an additional time constant not specified by the RIAA curve. | | | There are two categories of circuit design errors that could lead to RIAA equalization accuracy errors. | | | The total equalization error is shown in blue, while the op-amp-induced errors are shown in green. |
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http://home.comcast.net/~andy_c_public
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| | Benz Series 2 PP-1 Phono Stage |
| | As with the input amplifier, RIAA equalization has been achieved through an inverting 2-stage amplifier of ultra high accuracy (+0/-.5dB within the RIAA standard). | | | Lukaschek finds this new regulator, in conjunction with his polarity inverting RIAA filter, yields reduced distortion and a more exact implementation of the RIAA equalization curves. | | | Within the RIAA network, only 1% polystyrene capacitors have been used, with high quality metalized plastic-film capacitors in the coupling function. |
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http://www.musicalsurroundings.com/pp1.html
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| | 78 RPM and RIAA Preamplifier |
| | The cutting equalizations on all 78 RPMs and LPs before 1955 have been very different, and specially, the 78 RPM curves are very different from the RIAA eq curve. | | | It can therefore be seen that playing a 78 with RIAA equalization - all that is available to many people - produces far less top than is correct - particularly for the earliest electrical, where the result is akin to turning the treble control right down. | | | To compensate for the cutting equalization, it is necessary to do the opposite when you play back the records, and that’s why you use a RIAA input. |
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http://www.vadlyd.dk/English/RIAA_and_78_RPM_preamp.html
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| | Line level to phono input |
| | That RIAA equalization is used in the playback to reduce the high pitch noise and maximize bass dynamics in the phono playback. | | | The amplifier stage does also some equalization based on standardized RIAA curve. | | | These inputs have no RIAA EQ (ceramic pickups are amplitude-sensitive, and the RIAA curve produces (very) roughly a constant-amplitude cut). |
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http://www.epanorama.net/circuits/phono.html
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| | Phono preamp Turntable Belts Record Player Audio Equipment Electronic Parts: Elex Atelier |
| | Virtually all modern records are recorded to the RIAA standard and require RIAA equalization. | | | From 1955 most record companies changed over to the RIAA (new orthophonic) standard, but some companies kept their old "standards" well into the '60's because they considered them close enough to RIAA when listened to with record players of the era. | | | This is called equalization (EQ for short), which boosts the bass and cuts the treble by just the right amount. |
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http://www.elexatelier.com/gram2se.htm
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| | EB-804/419 ALL-JFET MM/MC Phono Preamp "Starter Kit" |
| | Here both amplifiers are providing flat frequency response and all RIAA equalization is done passively between the two amplifiers. | | | The R-C network between the two amplifiers provides the 75-microsecond roll-off for the RIAA equalization. | | | As the all-passive equalization network has a high insertion loss (~20dB), the gain of the two amplifiers has to be increased to get the same overall gain. |
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http://www.borbelyaudio.com/eb804419.asp
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| | Jon's Opinions - Moving Coil Head Amplifier |
| | Build the RIAA equalization using Marantz 7, McIntosh C22 or VTL type, three triode RIAA circuit. | | | I am not worried about the RIAA circuit, as it already has a resistor and capacitor filtering network that will filter off the noise from the d.c. | | | I have decided to adopt a modified Hampton 6922 MC head pre-pre amp and a Japanese RIAA equalisation circuits. |
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http://www.1388.com/doctor/jonopinion/03052001
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| | wikien.info: Main_Page |
| | The RIAA was formed in 1952 to administer the RIAA equalization curve, applied to vinyl records during cutting and playback. | | | Recently, several industry companies as well as RIAA opponents have claimed that the group artificially expands its membership by listing companies which are not member of RIAA, and do not wish to be. | | | The Recording Industry Association of America (RIAA) is a special interest group representing the US recording industry, and the body responsible for certifying gold and platinum albums and singles in the USA. |
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http://www.alanaditescili.net/index.php?title=RIAA
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| | Jeremy Epstein's 6C45P Phono Preamp page |
| | One problem with this circuit is that it is somewhat difficult to adjust the filter values to an accurate RIAA equalization - a very small change in resistor values makes a somewhat large change in the response and the sound. | | | The derivation of the filter component values for a two-stage (split) passive RIAA equalization network is shown below. | | | A quick look at the two circuits shows that there is no capacitor between input and output required for the equalization. |
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http://home.earthlink.net/~jeremyepstein/6c45riaa.html
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| | USB-Powered High Precision Hi-Fi Phono Preamp - Maxim/Dallas |
| | Some deviation from the ideal RIAA equalization curve will occur if these caps are too far from the designated values (see my test). | | | A quad, low-noise, op amp and LDO are used to build a stereo preamp with RIAA equalization to allow converting signals from a record player (phonograph) to a linear output for digitizing by computer sound cards etc. | | | A phono preamp is needed for preamplifying and equalization the analog output of the good old record player. |
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http://www.maxim-ic.com/appnotes.cfm/appnote_number/1931
(478 words)
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| | Page Title |
| | Surely the equipment makers today have adopted the RIAA standard and built the correct playback curve into their gear?" The short answer is, probably they have. | | | In 1955 the Recording Industry Association of America published a new standard equalization curve that was adopted by the entire industry of record and audio equipment makers. | | | The equipment manufacturers tried to keep up with all the different equalization curves and build playback circuits with curves that would make their own equipment sound "good". |
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http://www.graniteaudio.com/phono/page5.html
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| | Bob's Vacuum Tube Phono Preamp |
| | The RIAA equalization is split into two halves. | | | This preamp design started out as a conventional three stage cascade with feedback RIAA equalization. | | | I also changed the output coupling cap to 2uF to keep well away from the low end of the RIAA characteristic. |
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http://www.geocities.com/bobdanielak/phono.html
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| | Stereophile: TF-10 preamplifier |
| | This is the highest RIAA-equalization accuracy we have ever encountered in a preamp, but when one considers the fact that designer David Berning works for the US Bureau of Standards, it seems somehow less surprising that this should be so. | | | Measurements showed that the frequency response of the high-level section was flat from 10Hz to beyond 200kHz (within 0.1dB) and that the RIAA equalization was accurate to within 0.2dB from 30Hz to 15kHz (which is the limit of the range specified by the RIAA standard). | | | Each amplifying stage consists of a triode tube and an FET in what David Berning describes rather evasively as a "patented special complementary arrangement." The basic idea behind this is that the tandem hookup of a tube and an FET having complementary distortion characteristics will tend to cancel out the distortion from each device. |
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http://www.stereophile.com/amplificationreviews/611
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| | B2 Spice RIAA Equalization |
| | Active equalization overcomes the problems of loose tolerances and part aging (assuming that the equalization parts are high quality, i.e. | | | The inverse of the RIAA curve returns the signal to flat by cutting the highs and boosting the bass. | | | On the other hand, passive equalization cannot not be voltage overloaded nor can it bring the preamp to oscillation. |
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http://www.beigebag.com/case_riaa_1.htm
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| | Page Title |
| | Unfortunately, more gain is needed, since the RIAA equalization imposed on the record decreases gain at the low frequencies by a factor of ten (-20 dB) relative to the mid-band frequencies. | | | On the other hand, passive equalization is always stable and cannot be over-loaded; its disadvantage lies in the insertion loss and the frequency dependent load impedance it represents to the preceding stage. | | | Consequently, the passive equalization stage is usually placed within two gain stages because it yields a preamp with both a good overload threshold and a fairly quiet output. |
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http://www.glass-ware.com/tubecircuits/page3.html
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| | The AmishThrasher: 10/01/2004 - 10/31/2004 |
| | The RIAA was formed in 1952 to administer the RIAA equalization curve, applied to vinyl records during cutting and playback. | | | Recently, several industry companies as well as RIAA opponents have claimed that the group artificially expands its membership by listing companies which are not member of RIAA, and do not wish to be. | | | For more information about sales data see List of best selling albums and list of best selling singles. |
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http://amishthrasher.blogspot.com/2004_10_01_amishthrasher_archive.html
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