Octave Filter 3-P Passive Filter System

Brand: Octave | SKU: Filter3-P | UPC:

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$3,000
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Octave Filter 3-P Passive Filter System - Safe and Sound HQ

Octave Filter 3-P Passive Filter System

Price
$3,000

Octave Filter 3-P Passive Filter System

It is almost impossible to find modern hi-fi systems lacking some level of digital signal processing today. The classic CD player has largely become obsolete, having been replaced by Internet-based sources, supplemented with hard disk storage media. This evolution means that signal connections to a network at the digital level are necessary to enable the interaction of the components.

Today's modern audio systems feature a number of digital and analog signal connections, to which a number of connections to the home's mains power are made. The modern household also features many systems and devices equipped with switching power supplies (e.g., LED lighting systems, laptop, solar panels) and radio controls (such as WLAN, etc.).

All these systems emit interference that affects nearby audio components and thus the overall sound quality of the hi-fi system.

Often an attempt is made to protect the system from interference by means of mains filters. However, this protection is very limited, as system filters work systemically only at very high frequency ranges and can in fact negatively affect the dynamics of a system. Disturbances in the important audio range are therefore unrestrictedly admitted to the audio system despite network filters and are distributed uncontrollably via the signal wiring. To eliminate the problem of propagation of conducted EMI, Octave has developed the Filter 3-P, a filtering system that acts directly in the path of interference, namely the analog signal cabling.

The Filter 3-P is a passive EMI filter system designed to be connected between any audio source component - analog or digital - and the pre- or integrated amplifier input to which it is connected. With regards to digital sources (for example with a DAC, streamer, cd-player, PC) the effect is most immediately evident. The Filter 3-P is available in two versions: fitted with single-ended RCA or balanced XLR connections. Thanks to the innovative technology implemented in this design, the same high level of noise-filtering is achieved via either of the RCA or XLR variants of the Filter 3-P.

The core of the Filter 3 is a highly specialized broadband interference suppression transformer.

The art of filter 3 was not to influence the signal, but to block interference from the bass region to the highest audio frequencies. The Frequency range of the Filter 3 spans from 10 Hz to 150 kHz / -1.5db, while the noise attenuation reaches about -80db at 1 kHz. This corresponds to a reduction of common-mode noise by a factor of 10,000. Compared with the attenuation of a line filter in this frequency range of -20 dB (corresponds to factor 10), this is a huge increase in the filter effect. (see diagram 1).

Digital-to-Analog converters particularly benefit from this measure because medium and high frequency disturbances negatively influence the sound-sensitive jitter behavior of these devices. Conversely, analog amplifiers benefit from the higher signal purity. Interference of the music signal with residual interference in the audio range is reduced, and the sound gains clarity, making even the smallest background details perfectly audible.

Specs

Frequency response 10 Hz 150 kHz / 1 dB

Noise suppression (CMRR) > 80 dB / 10 kHz

Harmonic distortion (THD + N): < 0,001 % / 1 kHz

Recommended output resistance DAC etc. < 600 Ohm XLR; < 300 Ohm RCA

Recommended input impedance preamplifier > 10 kOhm

Features Built in a metal case milled from solid, magnetically optimized steel and cast in resin.
Ground switch for ground separation of input and output to prevent ground loops

General Facts

Weight 3.6 kg, 13.2 lbs

Dimensions 70 x 75 x 186 mm, 2.8" x  2.95" x 7.3" (W x H x D)

Brand Octave
Based on 296 reviews
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Great speakers For my needs. Wanted a nice full sound floor standing speaker that wasn’t harsh. Using them just for music in our fireplace room not for home theater. Not a complaint at all on their lack of lower end frequencies, I pretty much knew when I ordered them I’d be adding a sub to the mix to fill in where they leave off. Now to pick the sub 😅😂

Fast shipping and products arrived perfectly. Thank you for a good experience

The delivery was quick and the unit arrived earlier Then expected because I live on the west coast.
The Eversolo T8 is everything as advertised and reviewed. The unit took about 8 hours of use to lose the bright forward sound. I’m happy with my purchase from Sate and Sound.

I'm glad I made the choice to purchase this amplifier! I couldn't be happier and the sound is quite captivating.

I just came back from visiting my big brother out of state who has a system in the mid 5 figure mark. When I came back I was inspired to upgrade but decided to wait. But then my Sub stopped working. I saw these on sale and thought “Is it meant to be?” Of course it was. I have these paired with a NAD T-778 streaming Qobuz. So far I am really enjoying these. I am hearing old songs as if they are new again. I have been listening to music more than ever. Bass is solid and highs are crisp. A truly immersive speaker. While I wouldn’t dare say they are as good as my big brother’s setup, they are close enough to put a smile on my face. I think they are a solid option for the price range. I am very satisfied and they are still breaking in.

Absolute game changer! Love the device - terrific sound quality, intuitive interface and beautiful design!

A
Yamaha A-S501 Stereo Integrated Amplifier with Built-in DAC Customer Return
Anonymous

My amplifier arrived safely and has functioned wonderfully without issue. Thank you!

Reference caliber exotic retro-futuristic LP spinner. Few rivals. Few are so flexible.

I started years ago with an Ortofon Blue and this directly replaced a Mofi Mastertracker. I have coupled the LVB250 with a Darlington MB8 phono preamp and I can finally say that I am satisfied. This cartridge is exceptional and I don't think I'll ever need anything better.

Really good service and extremely fast shipping. Also good price on receiver.

Love the power of it it really feels like the gate way into high end it sounds beautiful happy with your service.Everything was all I hoped it would be thank you

I bought the M2si integrated amplifier to drive my 2.7 magnepans. It does a very nice job of doing just that. That the amplifier is advertised as dipping gracefully or smoothly down to 2 Ohms was a primary point in the buy. Plus, Safe and Sound had a very good buy on this amplifier at $ 799.00. The build quality is very good and it has a large toroidal transformer to better handle high current and increase bass response. The preamp is full Class A and is a strong point for this Class A/B amplifier. Great buy! You can't have it all at this price though. The motorized volume knob does not have an easy viewing of where it is set as it is an inset indention without a light marker. Also, no standby power for the amp but it does have excellent heat management as the chassis has a colder side versus the hotter 2 channel amplifiers side. It is a fully discrete amplifier (wonderful, no integrated except for maybe op-amps at the preamp front). 5 year warranty, hard to beat. The amplifier has to be broken in as treble is at first very forward , but settles after a good break in period. The silver white looks very sexy and has a kind of older vibe. The M2si is British and has a brightness to it which can be toned down if you use the right speakers. Magnepans can change resistor values at the terminals or maybe even use specific DACs. No complaint about not having digital inputs at all since there are plenty of line level inputs as you can use outboards which gives you more opportunities any way. I have three different DACs into the line level inputs so all I have to do is switch out the single coax cable I want to change some of the response. I like a very well made Class A/B like this unit compared to the Class D which I have tried. Soundstage is wide and there is a lot of headroom compared to a lot of class D. If the M2si performs at 90% of what their end does like it has been said, then wow. Way to go Musical Fidelity.

I have all Arcam equipment, the sound is fantastic. The price was amazing.. MusicLife app is so/so. Great piece of equipment..

Safe and Sound is an excellent place to buy audio gear. This phono preamp is excellent, as sounds as advertised and the price was right!

Amazing to deal with and best service on the planet

So pleased with the quality as well as pretty much next day delivery. Great company

Excellent CD player. Very impressed with the quality of the open box service. Absolutely impeccable, couldn’t tell from a brand new unit. Your customer service is also tops. Thanks for great shopping experience!

A
Marantz PM7000N Integrated Stereo Amplifier with HEOS Built-in
Anonymous

Amazing sound. Perfectly pairs with the components I have. Vinyl has never sounded better.

Unit sounds great butyou can hear sound bleeding through the speakers and amp at zero volume. Also bind post so small myspade pugs either too large to accommodate. Unit turned off several times, not sure why possible connection but I could not figure out maybe due to heavy load speakers .Ssrvice and sales always fantastic!

Super quick shipment and communications! Always great experience with Safe and Sound! The T8 is amazing! Big improvement over DMP 6!

These outperform my previous speakers by a wide margin: more punch, more body, higher articulation. The vocals are mesmerizing.

I was trying to scale down from a surround to a stereo setup and looking to upgrade DAC from Marantz av8805a. I have the Anthem mca 525 gen 2 amps and Sonus Faber Sonetto iii g2. It took about 70+ to burn in. It was an upgrade, but it is very subtle and hard to even notice unless really paying attention. This does fell like within the territory of diminishing returns. I don't know if it's because of my speakers, but it is the best speaker I can get given the size and weight for a small walkup apartment. However, I still decided to keep it because it is much lighter and runs cooler than the Marantz. It is also a little bit clearer (the Marantz sounded a little bit muddied, which I didn't even notice after years of using until I was comparing it with m3ai) and I noticed that it sounded louder at the same db level because of this (this means I can listen at lower db levels than I would with Marantz). I do miss the ability to fully control the Marantz via the android app. Overall a good DAC, but subtracting a little bit of points for the high price.