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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.  This noise reduction units can be adjusted and used as you listen and they operate in two steps.  They can be easily integrated into an ordinary hifi system, or professional system via RCA input and output jacks.  A complete system would consist of a Surface Noise Reducer connected in series to a DEHISSER.  One may also purchase either unit if only one form of noise was found more annoying.  For 78 rpm reproduction, the DEHISSER probably provides the most benefit.  For LP listening, the Surface Noise reducer may provide the most benefit.  With older records, you can obtain optimum noise reduction by combining the Surface Noise Reducer 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 Demo CD                                              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.  Best to listen to it on a editor, like Audacity, as you can better identify the CD tracks (MP3's don't have tracks).

                                                                                                                   Download complete Rek-O-Kut Dehisser Demo CD

 REK-O-KUT®  DE-HISSER

WHAT THE "AUDIOPHILE" MAGAZINES IGNORE:

"I am VERY VERY pleased...highly suggesting these...( De-Hisser and Surface Noise Reducer)… for anyone that plays and collects 78,s and radio transcriptions"

"...how pleased I am with the results I'm getting with the De-Hisser...It's the perfect solution for cleaning up the early music cassette tape recordings that I'm working on"

"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!"

"in extreme cases I...play only one side of the groove (thanks to your de-hisser)"

 "Selecting one groove wall plus the 80 Hz filter makes a huge difference"

"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!"

"I am really happy with the features and build quality!"

"The DeHisser works beautifully...I love it!"

"the dehisser... seems to fit the bill"

"What a difference"

Denoise Any Record Or Tape    REMOVES THE NOISE, NOT THE MUSIC!   While You Listen - No Computers

 THREE 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.   Not supplied with interconnect cables.  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 Subtly removes 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, rumble, severe warps, or records requiring bass boost.

Listen to LP, RCA LSC-2433	Listen to LP, Concert Disc CS-25	Listen to 78, COLUMBIA 67837	1937 NBC transcription	1950 ABC transcription	Listen to 1938 Fibber McGee transcription	Listen to 78,  BRUNSWICK 2827	Listen to 2-track tape RCA BCS-31

SPECIFICATIONS:

Frequency Response: 20-20 kHz, +/- 0.5 dB
Signal to Noise Ratio: >90 dBA
Distortion: 0.05%
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
Latency: zero
Power source: 120/240 VAC, 50/60 Hz
Dimensions: 19" x 1-3/4" X 7"
Weight: 5.1 lbs
Accessories: Universal Wood Cabinet ($126.00)

FEATURES

* 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 operating manual.

PRICE: $294.00 (IL Res. add 8.00% IST) + $24.50 (with case, $28.75) SHIPPING

Non-USA shipping:  Canada - $53.00( w/case - $65.00); England/Australia - $83.00(w/case - $103.00); Europe/Japan - $74.00(w/case - $90.00); Russia - $88.00(w/case - $111.00). The USPO advertise, but does not promise, 6 - 10 days delivery time;  insurance value is $200.00.

 

THE ANALOGUE SOLUTION

"That SNR is awesome!"

"It is a great product for my LP collection...and it works"

"Much lower overall surface noise, greater clarity and body to the music"

 "it's really impressive when ...between LP bands, ...When these surface noises are moderate, they are substantially reduced, and when...low, ...disappear"

and from Europe: "It works great, I’m not only pleasantly surprised – I’m absolutely astonished and amazed how good it is"

 - eliminates 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 broadcasts.

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.  Not supplied with interconnect cables. 

For a thorough demo, send for our 44-track demo CD.  Please send or PAYPAL $3.00 for postage.

Listen to LP, RCA LSC-1984	Listen to BLUES 78

 

SPECIFICATIONS:

Frequency Response: 20 TO 20 KHz +/- 0.20 dB
Distortion: Less than 0.02% at 1 kHz
Signal to Noise Ratio: >90 dBA
Crosstalk: >50 dB from 20 TO 20 KHz
Gain: 0 dB +/- 0.5 dB (Unity)
Max Signal: 6.5 Volts RMS
Input Imp.: 50 kOhms
Output Imp: 50 Ohms
Controls: Distortion Limiting, Quieting, Bypass/In
Indicators: THD, Noise Reduction
Power: 120 VAC/60 Hz, 230 VAC/50 Hz
Construction: Black anodized aluminum case, gold-plated connectors
Size: 19" X 1.75" X 7"|
Weight: 4.1 lbs
Accessories: Universal Wood Cabinet ($126.00)

"...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"