Unison Research Reference Pre (Open Box)
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Third-generation owner
Call or text: 410-239-2020Yes, that's literally his cell
At this level, every detail matters: your room, your system, what you’re driving it with, what you’re listening to. I handle these orders personally because an investment like this deserves more than an Add to Cart button. We’ll work through system synergy, I’ll make sure the setup is right, and we’ll coordinate delivery so it arrives exactly how it should. A few of our brands require this direct approach, but at this price point, it’s how I’d do it anyway. Use the button above, or call/text me directly at 410-239-2020.
Family-Owned Authorized Dealer
Family-Owned Authorized Dealer
We're an authorized dealer for every brand listed on this site, so your warranty is valid and fully supported. We're a real brick-and-mortar shop in Chestertown, MD with shelves of actual inventory, not a drop-shipper. Family-owned and run for three generations, since 1978.
*Free Delivery and Shipping
*Free Delivery and Shipping
Free shipping for most items over $100! Local delivery up to 500 miles more with minimum qualifying purchase.
See our shipping policies for details. We will contact you after your order.
Open Box version of the Unison Research Reference Pre. Limited quantity available.
See the full Unison Research Reference Pre Listing for product details.
Specifications
| Type: | Valve preamplifier, dual mono, two chassis |
| Tubes: | 2 x 300B, 2 x ECC82, 4 x ECC83, 6 x 6C45P |
| Phono Tubes: | 4 x 6C45P, 2 x ECC83 |
| Operation: | Pure Class A |
| Inputs: | 4 x RCA, 2 x XLR, 1 x Tape, 2 x Phono |
| Outputs: | 1 x RCA, 1 x XLR, 1 x Tape (active), 1 x Subwoofer (active) |
| Power Link: | Power-on link for Reference power amps |
| Input Impedance: | 47k Ohm |
| Phono Input Impedance: | Selectable resistance and capacitance |
| Gain (Preamp): | 20 dB |
| Gain (Phono): | 45–55 dB |
| RIAA Equalization: | Passive ±0.2 dB |
| Bandwidth: | 10 Hz –> 100 kHz @ –0.3 dB |
| Negative Feedback: | 15 dB line, 0 dB phono |
| Distortion: | 0.1% |
| Power Consumption: | 320 W max |
| Dimensions: | 45 cm x 56 cm x H 22 cm |
| Net Weight: | 30 kg / 66 lbs |
