Glue your mixes and busses together with the distinctive character of tube-driven variable-mu compression, using the GRANDCHILD 670 from Heritage Audio, a two-space 500-series stereo compressor outfitted with four 6BA6 (5749) NOS tubes, three exclusively designed transformers (one per channel and and one for the sidechain), and the select components and circuitry necessary to capture that sought-after warm, analog sound.

For Mixing and Mastering    Based on Classic Fairchild 670 Unit    Vacuum Tubes in Gain-Reduction Circuit    Analog Warmth, Glues Mixes Together    4 Military-Grade 6BA6 (5749) NOS Tubes    3 Exclusively Designed Transformers    Gain-Reduction VU Meter    Input Gain Control, Side-Chain Circuit    Adjustable AC and DC Thresholds    3-Position Active/Bypass/Off Switch

• Based on the legendary Fairchild 670 compressor and Heritage Audio's HERCHILD 670 model, the GRANDCHILD 670 puts the proven performance of the HERCHILD Model 670 in a cost-effective, two-space 500 series module.
• The module features an attractive front panel complete with a large, informative VU meter that not only provides Gain Reduction metering, but also shows the unit’s 3-position Active/Bypass/Off switch from a distance. 
• In common with its big brother, there is an Input Gain control with an adjustable range of 20 dB, the AC Threshold, and 5 selectable Attack/Release times. In addition, the DC Threshold control provides a unique compression curve adjustment combining control of the ratio and knee, soft stepped from hard limiting to a very smooth and transparent, light compression.
• Use the 3-position high-pass Sidechain filter to reduce the lower frequency´s influence on the detection circuit, a must-have feature for contemporary productions.
• The stereo GRANDCHILD 670 uses the sum of the two channels to determine the overall amount of gain reduction for both channels, ensuring a stable stereo image.

• Vacuum tubes in the gain-reduction circuit is at the heart of the specific tonality provided by variable-mu compression.
• Four 6BA6 (5749) tubes and three transformers ensure classic, top-tier analog performance for your mixing and mastering sessions.
• It's not easy to achieve that classic warm, hugging, intimate sound that just seems to effortlessly glue together a mix in a musical way, but the GRANDCHILD 670 delivers it, effectively providing that that lush, classy, and elegant tone.

Related Questions and Answers

Q: 1. I'm intrigued by the M-S setting, which Lisa described as traditional stereo. I'm wondering if the mic is set to MS, whether it could be used to mic two people sitting very close together for an interview. Possible?

A: The Audio-Technica BP4029 (AT835ST) records in M-S Mode and Left/Right Stereo Modes. Yes you can use it to interview people sitting very close together, up to about 5 feet away from the mic at the very most.

Q: 2. Could the OTA be mounted on a VersaGO-2 mount?

A: I do not believe we carry the VersaGO-2 mount in our System. My apologies. So I am not familiar with this Mount. However if it's Vixen Style Mount, then it will work.

Q: 3. Does light have +/- green (magenta) adjustment to the white CCT?

A: The CCT in the Dracast X Series LED400 RGBWW Light Tube would control the saturation off green or magneta. The color temperature control would be independent of that.

Q: 4. does this work for Acute 2 systems?

A: This will not work on an Acute 2.

Q: 5. Will this also work with the Cobra 3 monopods?

A: Yes, the iFootage C40 Extension Tube for Cobra 2-Series Monopods will fit the Cobra 3-Series Monopods as well.

Q: 6. how long is it?

A: This is 15.7".

Q: 7. Does it works with the B1X? And is it a 4-5 times more resistant tube like the one for D2?

A: I believe it is the same tube for the B1, B1x, D1 and D2. But I dont own a D2. The best way to get your answer is check the replacement tubes for the B1 and B1x on the B&H online site...

Q: 8. Is extension tube made of carbon fiber?

A: This tube is made of aluminum.

Q: 9. Does this device work when the air temperature is over 90 degrees, like an outdoor concert in the summer?

A: The recommended operating temperature for the Denon DN-200BR Stereo Bluetooth Audio Receiver is 41 to 95°F. It is not recommended for use when the environmental temperature is above 95°F or below 41°F.

Q: 10. If I only connect one of the xlr's can I use this mic as a mono podcast or youtube mic?

A: Yes, but you will only hear half of the information picked up by the mic, The one that is connected must provide phantom power.