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Inward Connections TSL-4V Vac Rac with NOS Tubes
Stereo limiter with smooth, tube-drenched mojo used by top mix engineers outfitted with hand-selected new old-stock tubes
 
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Product Description

Looking for some magic for vocals, bass, guitar, or the mix bus? Pay attention to the TSL-4V Vac Rac stereo tube limiter, the bread and butter of Inward Connection's line of boutique, made-in-LA gear. Loaded with Cinemag transformers, this latest version of the Vac Rac series adds new features without changing the sonic signature engineers have come to revere. You'll be armed with just the right amount of transient control, without having to tweak a bunch of knobs, giving your tracks a buttery-smoothness you'll have to hear to believe.

  • No-compromise design with dual-mono or stereo operation
  • The latest incarnation of a mix engineer's favorite
  • Inward Connections: boutique gear handmade in LA


No-compromise design with dual-mono or stereo operation
Top to bottom and front to back, the Inward Connections TSL-4V Vac Rac is designed and outfitted with premium components and the features pros want from a limiter. The TSL-4 Vac Rac has a link switch, connecting the opto cells of both channels for stereo operation. Both the Gain Makeup and bypassable Gain Reduction controls are 40-detented, offering 14dB of output gain and 40dB of gain reduction respectively. The best of the rest? There's a switchable 100Hz highpass filter, large 3"x3" illuminated VU meter (switchable Gain Reduction or Output), and Cinemag transformer-balanced XLR I/O, all packed into a rugged, well-ventilated 3U steel chassis with a vintage vibe to boot.

The latest incarnation of a mix engineer's favorite
Ever since the Vac Rac series hit the market two decades ago, it's grabbed the attention of high-profile mixers. This latest version gives you the same famously smooth limiting, with all the euphonic character and tube warmth that the Vac Rac reputation has been built on.

Inward Connections: boutique gear handmade in LA
Initially one of LA's best-kept secrets, the word about Inward Connections has been sweeping the globe. After all, when you hear guys like Chris Lord-Alge and Eddie Kramer swearing by a brand, you know to pay attention. Dreamed up and designed by Steve Firlotte, a well-known LA tech, the Inward Connections line offers premium options for the discerning ear, all meticulously handmade in Firlotte's Los Angeles workshop.

The Inward Connections TSL-4V Vac Rac is the TSL-4 equipped with hand-selected and factory-installed NOS tubes in the audio path. GE JAN 6072A’s and GE 12BH7A’s give the TSL-4V its rich, soulful yet articulate voice. It's tone that many feel can only come from tubes of the past. The TSL-4V is a special order item and subject to the availability of tubes required.

Inward Connections TSL-4V Vac Rac features: 

  • 40-detent gain makeup control – variable control of 14dB of output gain
  • 40-detent gain reduction control – variable control of up to 40dB of gain reduction
  • Bypass switch – engages or disengages the gain reduction element
  • Output switch – assigns meters to gain reduction or output
  • Hi-pass filter switch – engages 100Hz high pass filter within the gain reduction circuit
  • Link switch – Links opto cells of both channels for stereo operation
  • Large 3"x3" Illuminated VU meter
  • Zero trim to calibrate the meter in Limit mode
  • Tubes used in both input channels: Input stage - 6072A, output stage - 12BH7A
  • Power supply: pure Class A high voltage tube design with AC voltage selector
  • Unit dimensions: 3u rack space.  5.25" height, 19" width, 11.5" depth
  • Rugged, well-ventilated, 3u steel chassis design
  • Classic vintage look
  • Transformer balanced, line level, XLR inputs and outputs

Specifications:

  • Gain reduction: up to 40db
  • Input impedance: >100k ohms
  • Frequency response: +/- 0.5 dB @ 20Hz to 20KHz
  • Output signal to noise ratio: -85dB
  • THD + noise:
    • .015% @ 20Hz (0dB ref.)
    • .085% @ 20KHz (0dB ref.)
    • .15% @ 20Hz to 20KHz (+30dB ref.)
  • Maximum input level: +20dB
  • Maximum output level:
    • +20dBm @ 600 ohms
    • +34dBv @ 10K ohms
  • Output impedance: 600 ohms transformer balanced output

Original Manufacturers Description

Technical Documents
Product Specs Specifications
Product Brochure Brochure
Product Brochure Product Manual
Product Brochure Recall Sheet
User Testimonials
Freddie Feldman "Dude, the TSL-4 is like holy s***balls! Love it. So far, the best setting I've found for it is, strangely, both dials set to MAX. Just fattens vocals and keeps them super-even."
Freddie Feldman, Vocomotion, Chicago, IL

www.vocomotion.com

Ross Hogarth "I had heard a lot of conversation about how great Inward Connections Vac Rac compressor is, so I decided to grab one to try. I plugged it in and set it on a vocal quickly. I was actually comping the vocal so my setting was not really that important at the time. I realized quickly that this compressor is smooth. I mean smooth!

I had looked away, and then looked back and the meter was just slamming over, I mean pegged and I am not hearing it. No sucking, no fur, just smooth and friendly. I actually had to double check to make sure that the insert was in because the sound I was expecting at that degree of compression did not have the evil artifacts I did expect. I had found it finally. The Holy Grail of vocal compressors.

This is your absolute set it and forget it compressor.

Quickly this has become my "milk in my coffee" vocal compressor and I don't drink my coffee with out milk. The Vac Rac is in use every single day in the studio. Thank you Steve Firlotte and Inward Connections for creating such a wonderful compressor. Thank you Mike and Andy Nehra of Vintage King for making it so easy to access. Rock On!!"
Ross Hogarth

Producer/Engineer/Mixer Ross Hogarth has worked with a veritable "who's who" of the music industry. Ross's credits include John Mellencamp, Melissa Etheridge, Motley Crue, John Fogerty and R.E.M. to name a few. www.hoaxproductions.com

Chris Lord-Alge "....Inward Connections limiters are kind of like old Fairchilds. They have two knobs and one setting: stun. You just insert and go."
Chris Lord Alge, EQ Magazine, September 2006.

Chris Lord-Alge is one of the most well known and sought after mixers/engineers working today. To view literally hundreds of titles Chris has worked on, check out his artist page on ArtistDirect.com.

Armando Avila "I got my Vac Rac after reading about it in some Audio forums, then I asked Mike Nehra about it and he sent me the first one. After listening to my vocal tracks, acoustic and electric guitars through it, I immediately ordered a second Vac Rac, because the first one is now busy with my main vocal tracks, so I desperately need another one for my electric guitars, and now that I think about it, I need a 3rd one because nothing sounds like a Vac Rac on acoustic guitars too!!

I have some of the finest compressors and limiters and this is by far one of my favorites, I can't replicate what it does with any other device."
Armando Avila

Grammy Award Winning producer Armando Avila has worked with RBD, Aleks Syntek, La 5a. Estacion, Belinda, Allison, Moderatto, Gloria Trevi, Natalia Lafourcade, Alejandra Guzman, OV7 and many others. Read more about Armando's and other industry professionals favorite gear in Vintage King's "Producer's Corner".

Jeff Juliano and his Inward Connections Vac Rac TSL-3 "The VacRac is hands down the most amazing piece of gear that I have ever purchased. In my experience there is great gear and there is "shocking gear". This is SHOCKING gear. Mike at Vintage King sent me a demo and with one listen I found myself digging for my Amex and a phone.

I always found myself cutting frequencies around 160 and 340hz due to muddiness in the low midrange but the Vacrac just turns all of that into a thick stick of butter which gives the final mix a thick punch that I was always missing.

The attack and release times are PERFECT for lead vocals and bass. It's also amazing on my acoustic guitar buss, piano, hell anything you can run through it. I find myself doing less and less lead vocal rides since I bought this thing. Literally cutting a few hours off any mix that I am working on with better results! When it comes to recalls there are 2 knobs..... It's a no brainer.

Lately I have been reprinting my final mixes through it before sending them off to mastering. It smoothes off all harshness in the high frequencies similar to printing back to an analog 2 track machine. This box is a mixing must have. Steve Firlotte is not only a genius in my book but a hero."
Jeff Juliano

John F. Wilkinson III

"I have to say, this is truly an outstanding piece of equipment. Strap it on your bass and it sits in the track. Put it on a vocal, knock back 10db and you really cannot hear it working. Vocal rides are much easier. Works fantastic on several other things as well...acoustics and BV's to name a few. I think REALLY long and hard before dropping this kind of money on a unit, but this is money well spent. A piece of gear has to do 3 things for me to part with my money: sound noticeably better than a software equivalent, save me time in a mix, and hold it's value. 3 for 3 in my book."
John F. Wilkinson III

jfwmix.com/

Michael Angelo "The Vac Rac is a very special piece of gear. After a few days of using the tube limiter I realized it is a MUST HAVE piece in the studio. It really controls transients, while adding a very musical tube character. Recently clients have been tracking more and more in my studio and just tracking with the Vac Rac adds a beautiful character. The unit is very Hi fi sounding. I would say on 50% of the things we tracked we used the Vac Rac in disbelief. We could not imagine tracking without it...ever again....It is perfect for digital recording cause it does 2 great things at 1 time....Controls the transients and adds tube warmth to stale digital sound....

I do not have to do vocal rides like I use to... Its really amazing. The last mix I did with the Vac Rac,..the vocal not only sat in the pocket BUT it was also the best vocal sound I have ever gotten. I mean really Mike... It saves me hours of trying to pocket the vocal. The sonic personality of this unit and the way it grabs the transients is 1 of a kind.....THE MAGIC VOCAL limiter...

Here is my chain lately....completely rebuilt pultec EQP1A-3 (with telefunken tubes) into a 1176 (serial # 523) into the Vac rac......Best vocal sound I ever heard!....Stable, bright, smooth....very musical...."
Michael Angelo, The Music Palace, West Hempstead, New York

Johnny Rzeznik

"I can't describe the Vac Rac except to say BRILLIANT. It's really an amazing and inspirational piece of equipment: it propels my creativity. I love putting acoustic guitars through it. It is the sound that ignites and multiplies my creative process. Thank you so much!!!"
Johnny Rzeznik, Goo Goo Dolls

Michael Beinhorn "I am actually quite stunned that something that recent is that good. It added presence to the program instead of flattening it- subtle but definitely a noticeable difference. Wow."
Michael Beinhorn

Producer/Musician Michael Beinhorn has worked with the likes of Red Hot Chili Peppers, Korn, Ozzy Osbourne, Hole, Soundgarden, Herbie Hancock and Soul Asylum. Read more about Michaels's and other industry professionals favorite gear in Vintage King's "Producer's Corner".

Kore Studios "I was trained in a studio that had a set of Vac Rac mic amps and eqs. They were always very popular so when I first heard about this compressor I was keen to try it. Kore is currently one of a select few UK studios to own one but I can't see that situation lasting too long. Since its arrival this compressor has continued to surprise and delight us. The other day we achieved our best upright piano sound to date with a combination of the Vac Rac, two Neve 1073s and a pair of Coles 4038s. When mixing tracks in the past, one of our two UA1176s was always taken up on the vocal channel. The Vac Rac has now stolen this job and freed the 1176 up for use elsewhere. As well as being the ultimate vocal comp, it is a lifesaver when dealing with harsh digital sources and is also lightning fast to set up. Whether recording or mixing, this comp is a great friend to have."
George Apsion

George Apsion is the owner and chief engineer of Kore studios, London. Recent credits include Joss Stone, Brett Anderson and One Night only. www.kore-studios.com

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