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Hassle-free shopping with our 30-day return policy.
Trusted since 2012 — Greentoe is where smart shoppers save big!
Trusted since 2012 — Greentoe is where smart shoppers save big!
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3051 offers placed in the last 24 hours.
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Brand new & warranty-backed products from authorized retailers.
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Name your price. Negotiate your deal. Save big on every purchase.
Hassle-free shopping with our 30-day return policy.
Hassle-free shopping with our 30-day return policy.
Trusted since 2012 — Greentoe is where smart shoppers save big!
Trusted since 2012 — Greentoe is where smart shoppers save big!
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Focusrite ISA428 MkII - Microphone Preamp
Model: ISA428 MKII
1/5
Focusrite ISA428 MkII - Microphone Preamp
Model: ISA428 MKII
Product Unavailable
We are sorry, at this time we are not accepting offers on this product.
- 4 Channels
- Transformer Based
- Selectable Impedance
- Phantom Power
- Instrument Inputs
- Variable High-Pass Filter
- Per Channel LED Metering
- Focusrite ISA428 MkII - Microphone Preamp
- AC Power Cable
- One (1) Year Warranty
Authorized RetailersManufacturer warranty included
New Products OnlyWe never sell used merchandise
Free ShippingOn most items
30 Days Returns*Minimum return policy
As Seen On...
"An E-Commerce Site Where You Can Haggle Down The Price"View article
"Name Your Price for Gadgets on New 'Priceline for Tech' Site"View article
"Greentoe wants to make the buying process easier by letting you name the price you want to pay for an item, and then they'll find a bargain on your behalf..."View article
"Consumer Reporter Lynda Baquero shows a website where you can bid on the items you want, from the manufacturer of choice, and known within a day or two if your offer is accepted."View article
"I don’t say this often, but there’s a new app that just might dramatically change the way you shop, and it’s called Greentoe."View article
"More Retailers See Haggling as a Price of Doing Business. "View article
"An E-Commerce Site Where You Can Haggle Down The Price"View article
"Name Your Price for Gadgets on New 'Priceline for Tech' Site"View article
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1ezbuyer
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Great Prices and Great Experience
"I’ve purchased two TVs through Greentoe, and both experiences have been excellent. Best prices I could find anywhere, and both TVs were delivered right to my door without any issues.
My only mistake was forgetting that Greentoe offers a lot more than just TVs! I recently purchased applioances elsewhere and afterward realized I should have checked Greentoe first.
Greentoe will definitely be one of the first places I check before making a major purchase. Let's get the word out, and let the free market dictate prices. Craig Barton Scottsdale AZ"View article
Reviewer2331278360
5/5
Easy Peasy
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ImchillinwithGreentoe
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Like ebay but better!
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swperk
5/5
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"I found just the TV I was looking for at the best price! Easy to make the purchase, and the TV is brand new with a full factory warranty. Shipping was lightning-fast and the TV shipping box was packed inside another box, so it arrived in perfect condition. Highly recommended!"View article
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5/5
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5/5
Easy!
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5/5
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5/5
Best price, easy process.
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5/5
Easy process and great price
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5/5
Best price!
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DealMaker1217344194
5/5
More like DealToe Now
"I’ve been shopping for a soundbar/ surround sound that I wanted and found it as a Greentoe Now offer. I had already made an offer that was countered at $962. Thought I’d take one more look and found this Greentoe Now deal and after tax came back at $878.****. Great deal!"View article
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"Best price and very easy to order."View article
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5/5
OMG Green toe rocks
"I did not have the money to buy this TV at the retail price of $2700. Thank you for offering this service. Now i can watch TV after 6 months. My current TV burned out 6 months ago"View article
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5/5
Great deal!
"$800 cheaper than costco. Can’t believe it."View article
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5/5
Leary at first, but...
"I had not used or heard about Greentoe. I checked their reputation online before ordering an expensive Christmas gift. I saved 34% from best in-person price at retailers. The item arrived when and as described. Happy customer. Will use again."View article
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5/5
Smoked
"Stumbled across this site, checked it out to see if it was legit, and Voilà I bit the bullet."View article
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5/5
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Scaminjs
5/5
The only way to buy a TV
"Bought three TVs now and will come back every time"View article
1ezbuyer
5/5
Great Prices and Great Experience
"I’ve purchased two TVs through Greentoe, and both experiences have been excellent. Best prices I could find anywhere, and both TVs were delivered right to my door without any issues.
My only mistake was forgetting that Greentoe offers a lot more than just TVs! I recently purchased applioances elsewhere and afterward realized I should have checked Greentoe first.
Greentoe will definitely be one of the first places I check before making a major purchase. Let's get the word out, and let the free market dictate prices. Craig Barton Scottsdale AZ"View article
Reviewer2331278360
5/5
Easy Peasy
"It took less than 5 minutes to find the product, create account, and make the payment. Easiest purchase ever and i saved $500!"View article
Specifications
Packaging Info
| Package Weight | 17.55 lb |
|---|---|
| Box Dimensions (LxWxH) | 25.0 x 18.0 x 9.0" |
General Information
| Output | 4 x XLR Line (rear panel)4 x 1/4" TRS phone Insert Send (rear panel) |
|---|---|
| Phantom Power | +48V individually switchable |
| Multi Function | Has provision for optional analog to digital converter |
| Gain Range | Microphone: 0dB to +60dB in 10dB steps, plus 0dB to +20dB continuously variable trimLine: -20dB to +10dB in 10dB steps, plus 0dB to +20dB continuously variable trimInstrument: +10dB to +40dB continuously variable |
| Input Impedance | Microphone: 600Ω, 1.4kΩ, 2.4kΩ, 6.8kΩLine: 10kΩInstrument: >1MΩ |
| Maximum Output Level | Microphone: +7.4dBuLine: +25.4dBuInstrument: +11.5dBu |
| Frequency Response | Microphone: -0.35dB at 20Hz and -3.0dB at 122kHz (0dB gain) and -2.5dB at 20Hz and -3.0dB at 103kHz (60dB gain)Line: -0.3dB at 20Hz and -3dB at 94kHz (0dB gain)Instrument: -0.2dB at 20Hz and 0dB at 200kHz (+10dB gain) and -3.0dB at 20Hz and -3.0dB at 38.4kHz (+40dB gain) |
| Number of Channels | 4 |
| Noise | Microphone: Noise EIN: -126dB (measured at 60dB of gain with 150Ω termination and 20Hz/22kHz bandpass filter) Noise at main output with unity gain: -98dBu (measured with a 20Hz/22kHz bandpass filter) SNR: 123dB (relative to max output 25dBu) SNR: 120dB (relative to 0dBFS (+22dBu) Line: Noise at main output with unity gain: -91dBu (measured with a 20Hz/22kHz bandpass filter) SNR: 116dB (relative to max output 25dBu) SNR: 113dB (relative to 0dBFS +22dBu) Instrument: Noise at main output with minimum gain (+10dB): -95dBu (measured with a 20Hz/22kHz bandpass filter) |
| CMRR | Microphone: 88dB |
| Meters | Each 6-LED meter is calibrated 0dBFS = +22dBu (the maximum level which can be correctly converted by the optional internal A/D converter before overload occurs). The meter calibration points are as follows: Meter panel calibration value in dBFS / Equivalent dBu value: 0dBFS / +22dBu -2dBFS / +20dBu -6dBFS / +16dBu -12dBFS / +10dBu -18dBFS / +4dBu -42dBFS / -20dBu |
| Power Requirements | 100VAC~240VAC |
| Dimensions (WxDxH) | 19 x 11 x 3.5" (483 x 279 x 89mm) |
| Weight | 12.2 lbs (5.5kg) |
| Specialties | High Pass FilterRoll off = 18dB per octave 3 pole filterFrequency range: 16Hz to 420Hz (continuously variable, measured at the 3.0dB down point) |
| THD + N | Microphone: 0.0009% (measured at 1kHz, -20dBu input signal, at 30dB gain setting, with a 20Hz/22kHz bandpass filter)Line: 0.002% (measured with +4dBu input signal, 0dB gain setting, with a 20Hz/22kHz bandpass filter)Instrument: 0.006% (measured with -20dBu input signal, at minimum gain (+10dB), with a 20Hz/22kHz bandpass filter) |
| Inputs | 4 x XLR Microphone (rear panel)4 x 1/4" TS phone Instrument (front panel)4 x 1/4" TRS phone Line (rear panel)4 x 1/4" TRS phone Insert Return (front Panel)4 x XLR ADC Input for optional AD converter card (rear panel) |
- 4 Channels
- Transformer Based
- Selectable Impedance
- Phantom Power
- Instrument Inputs
- Variable High-Pass Filter
- Per Channel LED Metering
- Focusrite ISA428 MkII - Microphone Preamp
- AC Power Cable
- One (1) Year Warranty