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We sell two hardware systems for noise reduction. Unlike computer-based sofware system, these operate in real time. You do not have to record onto a computer, then process, and finally listen to or burn a CD. Both hardware noise reduction systems can be adjusted and used as you listen and they operate in two steps. The first step reduces crackle and ticks. This can be the occasional click or pop, or a continuous "frying bacon" as from 78 rpm records. Once this type of noise has been reduced, what is left can generally be described as "hiss." So, the next stage of noise reduction is usually hiss reduction. Sometimes, one genre of noise is more prevalent of bothersome to the user. So, it is not written in stone that both processors be obtained. However, a complete system would include both and provide the maximum result.
A complete CEDAR noise reduction system would consist of a Duo declickle in series with a Duo auto dehiss unit. CEDAR units operate in the digital domain and require additional hardware to digitize the analogue program material, and also to transform the digital output back to analogue. Both expensive and modestly priced Analogue to Digital (A/D), and Digital to Analogue (D/A) converters are available for this purpose. However, you can often use equipment you already have. For instance, if you have a DAT machine or other digital recorder, it probably has digital inputs and/or outputs. One of these units could be used to feed the CEDAR units. If your intention is to feed the output into a computer for more editing, you may have a sound card that has digital inputs. You could go directly from the CEDAR units into your computer. Thus, it is possible to sometimes use CEDAR units without any extra purchases.
The Esoteric Sound and Rek-O-Kut units are strictly analogue, and thus can be easily integrated into an ordinary hifi system, or professional system via RCA input and output jacks. A complete noise reduction system would consist of a Surface Noise Reducer connected in series to a DEHISSER. As before, one may also purchase either unit if only one form of noise was found more annoying. For 78 rpm reproduction, the DEHISSER provides the most benefit. You can also obtain a good noise reduction system by combining the CEDAR Duo Declickle and the Rek-O-Kut Dehisser into a system.
In evaluating these systems, it is necessary to consider the psychoacoustic factor. When listening to recordings with high frequency noise, we also perceive more highs than are actually present. We tend to associate the two. When the noise is removed, we perceive that the highs are also removed.
A complete audio restoration system consisting of the Re-Equalizer, Surface Noise Reducer, and DEHISSER would provide the majority of features of the, now discontinued, Packburn Noise Reducer. That unit sold for $2,600.00 in 1988. The cost of our system costs exactly half of that and has better performance plus much less audio distortion.
EVALUATION CD. We now have available two CDs that demonstrates the performance of the noise reduction devices we sell. One CD demonstrates the performance of the Esoteric Sound Surface Noise Reducer, and another that demonstrates the performance of the Rek-O-Kut DEHISSER. Both also show the effectiveness of CEDAR products. Each is available for $3.00 ppd. This can be deducted from the purchase price of any unit you purchase. For more information:
Click here for Esoteric Sound Surface Noise Reducer
Click here for Rek-O-Kut Dehisser Demo CD
You can download the complete DEHISSER demo CD in MP3 format. It takes about 4 minutes if you have hi-speed Internet. Just right click on the link and choose to save on your computer.
Download complete Rek-O-Kut Dehisser Demo CD
WHAT THE "AUDIOPHILE" MAGAZINES IGNORE:
"I am VERY VERY pleased...highly suggesting these pieces of
equipment…( De-Hisser and Surface Noise Reducer)… for anyone that plays and
collects 78,s and radio transcriptions"
"WOW ! - I've been having fun for the past few days...really impressive results on some Louis Jordan and Rosetta Tharpe Decca 78's"
"...your groove wall selector...has bailed me out many times. You did a superb job of making that feature available"
"It is really nice to enjoy those early sounds ...without any kind of “overfiltering” or digital artifacts!"
"I am particular impressed by the clean sound from the Rek-O-Kut De-Hisser for playback of 78’s!
"I...was amazed at how the (De-Hisser) filter made the highs pop out rather than killing them off"
"Listening to you demos, we actually prefer the SNR + De-Hisser result over CEDAR"
"The combination of the ROK’s RE-EQ and dehisser together...is just dynamite!"
"The Dehisser works well with my 78's. I'm very satisfied with it"
"I already use the Dehisser for a while now and it's fantastic!"
"the dehisser... seems to fit the bill"
Denoise Any Record Or Tape REMOVES
THE NOISE, NOT THE MUSIC!
While You Listen - No
NOISE REDUCTION SYSTEMS IN ONE
for use with modern stereo LP records, old mono LP records, all tape/wire recordings, and vintage noisy 78s
A perfect companion to follow the SURFACE NOISE REDUCER
Easily connects to most hifi systems
The Rek-O-Kut De-Hisser is actually three products in one: a background hiss
reducer, a left/right groove wall selector for mono records, and a low frequency noise
rumble filter. Use it in real time. No time wasted with computers.
Great for motion picture work. With zero latency, no loss of
voice synch. Installation is most convenient thru the external tape
monitor circuit or your preamplifier/receiver. If none, we suggest
getting one of our phono preamps, connecting to your amplifier's AUX input. A furniture-grade
walnut case is available, look under
ACCESSORIES. Send for
our 44-track demo CD.
Please include $3.00 for postage.
GROOVE WALL SELECTOR, a must for collectors or restorers of mono records. This switch permits you to select the least noisy groove wall of a mono record. In addition, the Rek-O-Kut De-Hisser features a unique circuit which cancels out rumble and similar noises that are common to both groove walls. Other switching circuits (left only or right only) permit low frequency noises (rumble) to be heard unimpeded. Our added circuitry removes the rumble and not the bass. For more details, click here.
HISS REMOVAL is not accomplished by a common variable, and in most cases manual, hi-cut circuit. These 1940's technology filters remove either the music or cause an annoying pumping sound of the background noise. The DE-HISSER uses several automatic, music-controlled filters within the spectrum of the program material. Thus, you do not notice it do anything, but make the music much more noise-free. Background hiss is one of the most annoying noises produced by tapes, cassettes, and records from 78 rpm thru vintage mono LPs to more modern stereo LPs. Using analogue filtering, it introduces absolutely no CEL telephone-like sounds commonly obtained with digital techniques and computer programs. Gain 10 dB of Signal to Noise Ratio.
THE LO-CUT removes annoying low frequency noises that can muddy the sound of records all vintages. This switch can select two amounts of low frequency noise attenuation. The 40 Hz position will suffice for many noise-plagued LP records and 78s, while the 80 Hz position may prove useful with old acoustic records, records with hum, rumble, severe warps, or records requiring severe bass boost.
Listen to LP,
Listen to LP,
Listen to 78,
1950 ABC transcription
Listen to 1938 Fibber McGee transcription
Listen to 78,
Listen to 2-track tape
Frequency Response: 20-20 kHz, +/- 0.5 dB
Signal to Noise Ratio: >90 dBA
Noise Reduction: 10 dB
Min. Audio Response: 2.5 kHz
Max Signal: 4 Volts RMS
Input Imp: 100 kOhms
Output Imp: 100 Ohms
Controls: Input, Lo-Cut, Dehiss, Bypass
Low Cut: 40 Hz, 80 Hz
Power source: 120/240 VAC, 50/60 Hz
Dimensions: 19" x 1-3/4" X 7"
Weight: 5.1 lbs
Accessories: Universal Wood Cabinet ($110.00)
* Works with all formats. 2 units required for 4
channel tapes, or Binaural LPs
* No background noise pumping with music or spoken word recordings
* Works with film soundtracks in real-time. No loss of lip synch
* Quality components and film capacitors for audiophile sound
* Connects to hifi systems like an ordinary graphic equalizer
* Works with modern audiophile, or vintage records
* No digital audio artifacts, even when over-used
* Gold-plated RCA connectors
For more detailed information, look at the
PRICE: $265.00 (IL Res. add 8.00% IST)
+ $22.50 (with case, $27.00) SHIPPING
FREE USA SHIPPING TILL 1/1/2019
Non-USA shipping: Canada - $48.00( w/case - $55.00); England/Australia - $74.00(w/case - $86.00); Europe/Japan - $65.00(w/case - $74.00); Russia - $78.00(w/case - $92.00). The USPO advertise, but does not promise, 6 - 10 days delivery time, insurance value is $200.00.
ESOTERIC SOUND SURFACE NOISE REDUCER
Say Good-Bye To Ticks, Pops, and Crackle
"That SNR is awesome!"
"It is a great product for my LP collection...and it works"
"an unlistenable record...is now very enjoyable to listen to straight through. Thank you"
"Superb instrument! ...a new record with some ‘factory’ pops, totally gone...a badly beat up ‘45...cut out about half of the most annoying pops"
"it's really impressive when ...between LP bands, ...When these surface noises are moderate, they are substantially reduced, and when...low, ...disappear"
or reduces these noises from most types of phonograph
records. Its circuit
can identify and remove many clicks and pops
found on Lp's and even 78's and other vintage records.
It will cause
minimum degradation to either audiophile or vintage records and is
suitable for inclusion into advanced audiophile systems where phonograph
records are used. While use
of a graphic equalizer or "scratch filter" to remove ticks and
scratches is somewhat effective, such filters reduce or eliminate the
highs found on records. The
Esoteric Surface Noise Reducer
acts only on the click or pop without effecting program material.
The Surface Noise Reducer
is also very effective in reducing ignition noise from FM radio
It requires the input of a stereo signal, even if of mono material. Mono disc records must be played with a stereo pickup. Installation is most convenient thru a recorder/external equalizer monitor of your preamplifier/receiver. If none, use a stereo preamplifier. Connect its output to the SNR's input and the SNR's output to an AUX input on your amplifier.
For a thorough demo,
our 44-track demo CD.
Please send or PAYPAL $3.00 for postage.
Response: 20 TO 20 KHz +/- 0.20 dB
* In "BYPASS" mode, signal is hard-wired
input to output - introduces nothing to any audiophile unit
* 70-90% effective on Lp's and 15-30% effective on most vintage records
* Unique "distortion limiting" circuit prevents unit from acting on music
* Suitable for home, professional CD mastering, or broadcast use
* Film coupling capacitors assure low TIM and transparent sound
* Works with phono, tape outputs - any source
* Universal Wood Cabinet available ($125.00)
* Professional quality design and construction
* 19" rack mount standard at no extra cost
* Gold-plated RCA connectors
* Very low distortion & noise
* Stereo or mono
CLICK FOR: MANUAL CLICK FOR: REVIEWS
Price: $425.00 (IL Res. add 8.25% IST) + $15.50 Shipping
SPECIAL COMBINATION PRICE: REK-O-KUT DEHISSER + SURFACE NOISE REDUCER: $615.00 (IL Res. add 8.25% IST) + $19.00 SHIPPING
"...those 2 products are the
best thing ever bought for my turntable other than cartridge..."
"The SNR and Dehisser...Excellent pair, perfect for anyone serious about good sound and the vinyl hobby"
CEDAR DUO SERIES OF AUDIO RESTORATION MODULES
SPECIAL CLOSE OUT
SORRY, ALL NOW SOLD OUT
“At this new lower price, the “Cedar” was an irresistible bargain. It actually does what it says it will do and I’m sorry I didn’t buy one years ago.”
J. David Goldin, Radio Archivist, Grammy-Award winning record producer
CEDAR, THE WORLD STANDARD IN NOISE REDUCTION - THERE IS NO BETTER!
NO LONGER DO YOU HAVE TO PLAY WITH A COMPUTER, YOU CAN JUST LISTEN TO YOUR ANCIENT RELICS WITHOUT NOISE
CEDAR is world renowned for effectiveness in removing noise from sound sources. CEDAR is used by the world's leading record companies, including BMG, Abbey Road, and Skywalker Sound. The result of a collaboration between the British National Sound Archive and Cambridge University, they digitally remove most noise without affecting original sound. Each unit operates in real time, you do not have to process files on a computer. These devices have SPDIF and AES/EBU inputs and outputs and require a digital source, an A to D converter in order to operate. Also, you will need a D to A converter to hear the output. ADDA's area available, even low-cost units from $50.00 and up. A DAT machine or similar can oftern be used.
The Duo declickle processor removes scratches,
clicks and crackle, such as “frying bacon) sounds from your sound
sources. Simple dial adjustment
removes noise more effectively than any instrument ever made. List Price (1/08) is $ + $50.00 Shipping
$1,795.00 (IL Res. add
+ $50.00 Shipping
The Duo auto dehiss processor
removes background hiss from tapes and discs without removing the music.
It can actually remove hiss that is significantly below the softest of
the program material. List
Price (1/08) is $ + $50.00
Res. add 8.25% IST)
+ $50.00 Shipping
Get this only if you want the extreme best, and all bells and
whistles. You can find other brands at MCM Electronics for much
less. The CEDAR ADA is an A/D and D/A Converter is a stereo, 24-bit,
96kHz 1U rackmount unit that produces an AES/EBU or SPDIF output from a
balanced or unbalanced analogue stereo input, and a stereo balanced or
unbalanced output from an incoming AES/EBU or SPDIF input. List
Price (1/08) is + $25.00
Res. add 8.25% IST)
+ $25.00 Shipping
A complete system consists of a digital source, such as an AD converter and DA converter and both processors connected in the same series as presented here.
Warranted for 1 year from time of delivery by CEDAR Audio, LTD. Units are exclusively repaired by and must be shipped to CEDAR for service.
CLICK FOR: REVIEWS
Also look at our computer software. Computer software provides editing and often, powerful noise reduction to remove clicks, crackle and hiss from recordings.