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We utilized 5 full coats of lacquer, and solid aluminium feet and badging because REL owners understand quality must extend throughout a product, not just in the most obvious locations. Tzero is built using a super stiff cabinet construction that drives the resonant frequency higher so it is more easily damped by our instrument-grade bracing. Just donate $5 or $10 to our PressPatron account by clicking on the button below. Fully Electronic with SET-SAFE The price means that its possible and tempting to run a pair of them because two is almost always better than one when it comes to subs. A frequency response function can be formed from either measured data or analytical functions. Thanks for teh great review. The volume is set at about half, and the crossover is around 45. Its a musical little beast, definitely suited for stereo environments, and in the right system, its a pleasure to listen to (Ive heard more articulate units, albeit at a price point well above the RELs) but users need to bear its ultimate limitations in mind when deciding to buy if you want 20Hz flat, then you need a bigger box, end of story. Your email address will not be published. Never heard these before. Input Connectors: High-Level Neutrik Speakon, Low-Level single phono, LFE phono. 399,00. zum Angebot Fernsehservice Horvath Infos AGB. Going for a higher end model would be my choice though. But your review makes me think they may be worth a shot. freqz returns the complex frequency response in vector h, and the actual frequency points in vector w in rad/s. Presented with the opportunity to review one of the T-Series units, I jumped at the chance because Im the proud owner of a five box amplification system thats expressly been designed to work in a 2.1 layout. The T-Zero didnt slow the bass down at all, proving easily able to keep up with the speakers in terms of timing. Input Impedance: High-Level: 150k, Low Level: 10k, .1/LFE: 10k ohms. Tel: +44 (0)1656 768777 So REL products are engineered for integration into stereo systems. always thought the bottom end lacked some punch although the mid and highs are very sweet. In due time the British REL literally shocked the market by ultra-compact Quake subwoofer - it was considered before that a true bass machine simply must have big sizes. However, in some situations when there are two or more Theyre totally accepted and even loved in the home theatre environment, but somewhat scorned in stereo environments by much of the audiophile community. REL T-ZERO Subwoofer . ? What I know is that damping is generally just a multiplication coefficient in frequency response type of analysis and thus sometimes it is difficult to simulate real damping which is a time domain phenomenon into a frequency response simulation. Um den Frequenzgang eines mechanischen Systems zu messen, muss das Having heard how good this set up can sound, it seemed the logical approach, and in this case, I used the cut inputs on the power amps to feed them a rolled off signal and ran RCA interconnects into the sub combined with an adapter into its low level input. you down the road, and will take a look right here first of all the very next time The compact form factor obviously means that the huge drivers usually associated with subwoofers just arent feasible, so REL has implemented a single 6.5-inch (165mm) long-throw downward firing driver housed in a sealed cabinet and driven by 100 watts of Class D amplification. Franco would no doubt argue that even the biggest speakers still need to be rolled off because their low bass is probably a distortion-laden nightmare, but at that point, youd need a much bigger sub. Learn how your comment data is processed. Its reasonably dead and dull when given a scientific hard knock with a calibrated knuckle, but thats not too difficult to pull off when the longest edge of your cabinet is less than 300mm long. want. SUBWOOFERS ARE A bit of a conundrum. The Rel T Zero is small, discrete, and beautiful. Connections: High-Level Neutrik Speakon, Low-Level single phono, LFE phono. Frequency-response tests are, in general, simple and can be made accurately by readily-available equipment, e.g., dynamic signal analyzer. Thats not really subwoofer territory according to most people, especially the aforementioned Mr Viganoni, who reckons a sub needs to be able to get to 20Hz at -3dB. HTkO0_q?5$LL PnG];iUs9>NP2"#Kg\;s{ This site's original content is copyright Crusty Old Gits Ltd and witchdoctor.co.nz. For instance, daily data often exhibit weekly patterns (a frequency of 7) and yearly patterns (a frequency of 365 or 365.25 - the difference often does not matter). The premise of T-Zero is to bring quality, the full REL connectivity suite, long throw drivers and powerful, reliable amplifiers to a new lower price point and dimension. Fortunately, with my amplification chain there are a number of ways to connect a sub, expressly intended to roll off the signal sent to the main speakers, allowing them to do what they do best (upper bass upwards) and passing the full signal to the sub, thereby allowing it to do its job and recreate the low bass. The T-Zero is fitted with aluminium feet with a matching badge on top, and even the bolts holding on the control panel are the polished T-304 stainless steel type this little sub is beautifully put together, especially considering the price. TECHNICAL SPECIFICATIONS Type: Sealed, down-firing active woofer Drive Unit: 165mm long-throw, alloy cone, steel chassis Lower Frequency Response: 38 Hz at -6 dB in room Connections: High-Level Neutrik Speakon, Low-Level single phono, LFE phono Amplifier: 100W Class D Of course, therell be some combining of output of the two bass systems and this is usually what causes problems when trying to get a sub to work in a system with bigger speakers; its much easier with speakers that arent quite as bass capable. without breaking the bank, a REL T-Zero V2 (or preferably, two) cant be beaten. The cleaner midrange and better overall bass quality came as no surprise, because Ive indulged in this experiment before. Amplifier: 100W Class D. Dimensions (WHD): 216 241 260 mm. The response may be given in for any real, even impulse-response .Thus, the frequency response is a real, even function of .A real frequency response has phase zero when it is positive, and phase when it is negative. If you want a small extension to the bass response of a system like this you could certainly do worse than this little job. Norstone Stylum 2. Glad I read this review it sounds great, they are such a powerful little subwoofer! I don't think pseudo is a word all by itself, not even in 18.03, circular. Amplifier: 100W Class D. Dimensions (WxHxD): 216 x 241 x 260 mm. The Frequency Response Function for LTI Systems The output of an LTI system can be Apparently, wanting to repeat this huge success, the company included a miniature T-ZERO in its assortment. Instead of the default option of a RCA LFE input found on most subs, REL prefers to use a high-level (speaker level) input in a hi-fi environment. _ #H$ rS| %!. Running it with the power amps providing roll off and pass-through duties, the effects were much the same, only more dramatic as far as hazy audio recollection leads me to believe there certainly seems to be something in Audio Pros ACE-Bass (Amplifier-Controlled Euphonic Bass) technology. Sorry, your blog cannot share posts by email. Correlation between frequency and transient responses is indirect, except for 2nd-order systems. Entertainment for Grownups Hi-Fi, Home Theatre, Music, Movies, TV & Film, Gaming, Gadgets and more! hnlich wie die FFT-Analyse ist FRF typisch fr ein System, welches eine von einem bekannten Eingangssignal gemessene Rckmeldung hat. The REL T-Zero, the baby of the company's subwoofer range, measures way less than a cubic foot and weighs just 6.8kg, but packs a 16.5cm down-firing long-throw driver powered by a 100W class D amp the first time such and amp has been used in a REL sub. I start looking forward to browsing even more websites written by freqz can accept other parameters, such as a sampling frequency or a vector of arbitrary frequency points. Price: 299 (per subwoofer) Manufactured by: REL Ltd. URL: www.rel.net. Bottom end extension is limited (as expected) with REL claiming a modest 38 Hz at -6dB in room. In fact, the very comprehensive manual states: ALWAYS connect using the REL HIGH-LEVEL input, unless your system simply cannot accommodate this. When it comes to hooking up the T-Zero, users will find that REL takes a different approach to many subwoofer manufacturers. Okay, so this is its pseudo-period, pseudo-frequency, pseudo-circular frequency, but that's hopeless. find a blog page that provides all of the information i Despite the comparatively small driver and cabinet, the T-Zero can move a fair amount of air, but it doesnt like to be driven outside its comfort zone. Tel: +44 (0)1656 768777 Lo and behold, exactly as promised by the Viganoni theory, the midrange was clearer and the bass seemed slightly more articulate. ASHLEY KRAMER. Its easy and painless! Gain Control Range: 80 dB. And its diminutive scale allows it to all-but-hide among the RELs T-Zero is a very nicely priced subwoofer thatll fit in with many environments, both in terms of looks and its audible contributions. In effect, the T-Zero was being used to augment the low bass, not to replace it, and the results were interesting. http://souforum.com/. The concept of frequency response is again motivated by applying a single sinusoid. (adsbygoogle = window.adsbygoogle || []).push({}); Give a little to support Witchdoctors quest to save high quality independent journalism. Like other T-Series woofers, the T-Zero uses a custom-made woofer, a REL designed 6.5" Ultra-Long Throw, mated to a wicked fast Class D amplifier delivering a potent and ultra-green 100 Watts. I actually have recently been undertaking study upon this theme With the REL in place, there was a more even front-to-back distribution of bass. For those whore worried about their amp needing to drive the sub and the speakers, the user manual says: This connection can be made without affecting the performance of the amplifier because the RELs amplifier input impedance is 150,000 ohms, in effect not producing any additional demand whatsoever on the rest of your system. The frequency is "the" period at which seasonal cycles repeat. The price means that its possible and tempting to run a pair of them because two is almost always better than one when it comes to subs. Lower Frequency Response: 38 Hz at -6 dB in room. Page 11 REL Set-Up Made Simple REL products are not traditional subwoofers, but are true Sub-Bass Systems. Weight: 6.8kg. Designed by WPZOOM. Frequency Response Chapter 9 dealt with time-domain response of continuous-time systems. }V" AUtmwC?3]ZoI^o)I2n8I]gy#t>MN_l2ZcIeO.S\M\i_N>xLUr_v8xL~W Lower Frequency Response: 38 Hz at -6 dB in room. 36 Bewertungen Lieferzeit 2-7 Werktage . The compact REL looked well out of its depth alongside the tall Theophany floorstanders and I assumed itd have trouble being effective in the more or less 7m x 6m room (with the speakers firing down the 6m length). Description. The cabinet is described as being super stiff and designed to drive up the resonant frequency to allow the damping of the instrument-grade bracing to be more effective. The theory of a subwoofer in a stereo system is sound, because low bass is probably the most difficult part of the frequency spectrum to generate properly (unless you have big speakers, and even then, the results are by no means assured) and subwoofers are nothing if not low bass generators. At 216 x 241 x 260 mm (W x H x D) including the feet, the T-Zero doesnt exactly strike one as the kind of unit youd use to get down low, but it certainly impresses from a looks perspective. Save my name, email, and website in this browser for the next time I comment. A few years back, I bought an Audio Pro sub at a liquidation sale. Price: 350 (per subwoofer) Manufactured by: REL Ltd. URL: rel.net. To obtain an estimated frequency response, the block simultaneously: By connecting to the high-level input on the REL from the amplifier, you build forward the sonic signature of your main system, including the tonal balance and timing cues of the entire electronics chain. Connections: High-Level Neutrik Speakon, Low-Level single phono, LFE phono. The T-Zero was left in-situ for a fairly long review period and at no stage did I feel it had provided any detrimental effects to the audio performance of my hi-hi system.

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