Heritage Audio Herchild Model 670 Premium Stereo Tube Compressor
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Originally designed for broadcast and cutting of lacquer masters for vinyl albums the Fairchild evolved into what is probably the most famous and coveted compressors of all time. Produced at the end of the 50's there weren't that many actually manufactured. Of those that remain, some 60 plus years later, only a small percentage have been properly maintained and are up to the job.
This lush, punchy, warm sound has blessed 1,000s of hits and has never gone out of style. On the contrary, it's desired as much today as it was when released, if not more...due to the digital age we live in. There's an ever increasing need for that analog mojo to caress your mixes and Heritage Audio has the answer with the HERCHILD Model 670.
The HERCHILD Model 670 is a Tube-based Variable-Mu compressor that faithfully reproduces the design and exact components used in the original. Stuffed full of 22 valves and 9 transformers and operating at high voltage a solid, professional result is achieved. A clean, transparent sound is possible with no artefacts or pumping while also being able to create a more noticeable, heavier, denser effect with extra harmonics if pushed harder.
The original is a classic, but working in the 21st century we've come to expect certain features. The HERCHILD Model 670 will not disappoint. The 6 Attack and Release times have been exactly duplicated as has its all tube side chain circuit for precise control. There is now access to the progressive ratio, which is a unique curve adjustment combining control of the ratio and the knee. This is continually adjustable from hard limiting to a very smooth and transparent compression. There is also a side chain filter with 4 selectable frequencies to reduce the lower frequencys influence on the signal, a must have nowadays.
The HERCHILD Model 670, being a 2 channel unit, also has the AGC section to determine which of the 4 modes it will work in. The 4 modes of operation to choose from are: IND, LINK, LAT VERT & LAT VERT LINK.IND gives you independent control for each channel while LINK, obviously, links the two channels operation together so both channels are controlled by taking the average from the two channel settings to determine what the overall stereo control will be.
The LAT VERT mode is originally from the days of using a cutting lathe to prepare vinyl records. It was crucial to carefully decide the depth and the width of the grooves, so you had precise control over both aspects in this mode. Nowadays, people have discovered the advantages of mixing and mastering with MID/SIDE processing as it allows you creative control over the center and side signals of a stereo track separately. LAT VERT is the equivalent to MID/SIDE and when used properly it really gives you the control to make your songs sound wider, deeper and more focused. And the last option is LAT VERT LINK and is again for MID/SIDE processing but this time with the two channels linked together and controlled by taking the average from the two channel settings to determine what the overall control will be.
Features
• VU meter: Indicates gain reduction• Metering: Selects either gain reduction or valve balance
• Input Gain Control: Attenuates the input up to -20 dB
• AC Threshold: Typical threshold control
• Red Jewel Light: Indicates equipment is on
• Power Switch: Turns the unit on or off
• Zero Adjustment Screw: Adjust for correct meter reading
• Balance Adjustment Screw: Adjust for optimum valve performance
• DC Threshold: Ratio/Knee/Curve Control
• SC Filter: Select either 50, 100, 200, 350 Hz or off
• Time Const: Selects the attack and release settings
• AGC: Choose between the 4 different operating modes
Specifications
Input Impedance: 2 kΩOutput Impedance: 600 Ω
Output Level: +30 dBu clipping point
Frequency Response: 20 Hz to 20 kHz + 1 dB
Signal To Noise Ratio: 120 dB
Self Noise: Less than -82 dBu
Harmonic Distortion: Less than 1 % at any level up to +18 dBu output (no limiting)
Watts: 200W
Dimensions: 482 x 265 x 200 mm
Weight: 13.3 kg
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Protect your investment with the Long & McQuade Performance Warranty
A warranty can be a very important factor when making a buying decision. Because repairs can be very expensive in terms of parts and labour costs, manufacturers usually only provide one year limited warranties that generally only cover items that malfunction due to a manufacturer’s defect. With an important purchase such as a musical
instrument or piece of studio gear, however, many people want to have the peace of mind in knowing that their investment will be protected should the product no longer be performing at 100%.
Because of this, Long & McQuade provides our customers with a FREE one-year Performance Warranty on most of our products. The Long & McQuade Performance Warranty supplements the manufacturer’s warranty to ensure that our customers receive complete “no hassle” warranty coverage within their first year.
How does the Long & McQuade Performance Warranty differ from most manufacturers' warranties?
- Performance Guarantee: Normal wear and tear is covered, so your product will be performing as well as the day you purchased it for the entire duration of the coverage. Band and Orchestral Performance Warranty does not include replacing pads or cleaning for woodwind instruments, unless deemed necessary by our repair staff. Ultrasonic cleaning for brass instruments will be provided if deemed necessary by our repair staff, but is not routinely offered under the Performance Warranty.
- Product Replacement: If your product cannot be fixed or costs too much to fix, we will replace it with the equivalent model for no additional charge. If this is not possible, a full refund will be provided.
- No Lemon Policy: Your product will be replaced should the same problem occur multiple times.
- Convenient: Easy drop off and pick up of the product at any Long & McQuade location.
- Guitar Setup: Guitars purchased at Long & McQuade come with 1 free setup, to be redeemed within 1 year for new guitars and 90 days for used guitars.
- Loaners Available: A loaner product may be given while the product is being repaired.
- Power Surge Protection: Your product is covered even if damaged from a power surge.
- Accessory Coverage: Any peripheral devices or accessories that come with your product (i.e. foot pedal, case) are also covered.
- Commercial Use Coverage: Music and recording professionals who purchase gear for “heavy-use” commercial purposes will still be covered.
Long & McQuade reserves the right to restrict the purchase of additional years of Performance Warranty. Used products come with a 3-month Long & McQuade Performance Warranty. Some products (i.e. computers, software, cymbals and other items) are covered only by the manufacturer‘s warranty. Consumables (i.e. strings, reeds, drum sticks, batteries, tubes, cross faders) are excluded as they are designed to be replaced. Cosmetic Damage, Accidental Damage, or problems caused by Humidity or Temperature Issues are not covered. Speakers damaged by overpowering are generally not covered. Our coverage does not provide compensation for loss of use. As of June 2018 the Performance Warranty is no longer transferable. The warranty is only valid in Canada.
Purchasing additional years of coverage
Some manufacturers provide warranties for longer than 1 year; however, these are usually limited warranties that do not provide the same coverage as the Long & McQuade Performance Warranty. Customers interested in more complete and convenient (but not necessarily longer) coverage are still able to purchase additional years of the Performance Warranty.
If you are interested in receiving this coverage for longer than one year, you have the option of purchasing additional years of the Performance Warranty. The pricing is as follows:
- NEW products: Starting at 4% of the current new selling price to double the warranty from 1 year to 2 years. Starting at 4% for each additional year.
- USED products: Starting at 4% of the current new selling price to increase the warranty from 3 months to 1 year. Starting at 4% for each additional year.
- GUITARS: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year. $45 maximum. An additional free setup is not included with additional purchased years of Performance Warranty.
- BAND and ORCHESTRAL instruments: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year.
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| Product | SKU | Qty |
|---|---|---|
| Herchild Model 670 Premium Stereo Tube Compressor | 795817 |
