From Dean Costello Audio:

The HMW (Heavy Metal Warfare) is the ultimate single channel amp for achieving all ranges of rock and metal tones. The impressive versatility it offers in this regard comes from having high and low gain input jacks as well as a high and low gain switch. Altogether, there are 4 levels of input sensitivity to choose from depending on how aggressive of a sound the user is going for. 

The high gain input ranges in sound from rock to extra heavy metal. Although it can be dialed back and used with pedals as well, its main purpose is to be used in the plug and play style where guitar is plugged straight in and all gain comes from the amp. The low gain input is good for clean-ish to rock tones and  is more primarily aimed at being a pedal platform style where the amp does some range of moderate rock tones that can be shaped further with boosts or overdrives if desired. 

EQ is expansive but not excessive. Settings are divided into preamp and power amp controls with preamp controls being Gain, Treble, Middle, and Bass. Volume, Presence and Depth control the overall volume and frequency response of the power amp. Two switches were added to allow the frequency range of the preamp to be shifted into either a more trebley or a more bassy range. Both switches off is the true sound of the amp. Treble shift switches the preamp into a more “brite and tite” sort of feel which can be good for styles of music where more pick attack and articulation of notes is important, like fast or technical metal, punk, grind, thrash, etc. Bass shift makes the amp more thick and full sounding if your desire is to bowl people over with low frequencies in your doom or sludge band.

The HMW comes standard with two speaker outputs, an impedance selector switch for 4, 8, or 16 ohm output, and a line out with volume control. This model has an FX Loop.

Headcase is solid hardwood maple with clear semi-gloss finish. Air vents in the top and bottom and the relatively open front and back panels allow fresh air to circulate around the tubes to keep things cool.
Chicago Music Exchange

Chicago Music Exchange

Dean Costello Audio
Brand New
15 Years
Chicago Music Exchange
Chicago Music Exchange
Chicago, IL
5:21 PM
Monday-Saturday 11 A.M. to 7 P.M. Sunday 11 A.M to 5 P.M.

Payment Terms - Orders Internet orders may be paid for using the following methods: VISA, MasterCard, American Express, Discover, and PayPal. For phone or mail orders you may pay money orders and cashier's checks by mail. Just call us at 773-525-7773 to place your order. All non-credit-card orders are subject to a 10-business-day hold. We do not accept international credit card or PayPal payments from international accounts. For international security reasons, please call the store to arrange a Bank Wire: +01-773-525-7773.

Shipping Charges - Taxes and Title Separate charges for shipping and handling will be shown on your order form. As a security precaution, initial orders and orders shipping to alternate addresses may be held for extended verification. We reserve the right to make partial shipments, which will not relieve you of your obligation to pay for the remaining deliveries. All items purchased from Chicago Music Exchange are made pursuant to a shipment contract. This means that the risk of loss and title for such items passes to you upon our delivery to the carrier. The published rates are for US domestic shipping only. Contact us directly if you wish to place an international order. For more information on our shipping policies, including rates, delivery times, and delays, please visit our website at chicagomusicexchange or call us at: 773-525-7773. If applicable, a separate charge for taxes will be shown on the invoice. We are required to collect sales tax on all orders shipped to Illinois.

3-Day / 15-day Return Policy If you are not completely satisfied with any product, return it for a full refund of the product purchase price, full credit, or exchange of your choice. We give you 3 days from the shipping date on Vintage instruments, and 15 days on New instruments. Credit card returns are issued a credit for purchase price. Refunds are made for product value only, excluding shipping and handling charges. New, Unopened items: You may return most NEW, untouched, unopened items within 15 days of delivery for a full refund. if the return is a result of our error (you received an incorrect or defective item, etc.) we'll also pay the return shipping costs. AmEx credit cards: Note that if your order was paid using an AmEx card we may pass on a 3.5% fee of the purchase price to process your refund. Vintage, Used items: We have to evaluate vintage and used guitars, amps, and other items on a case by case basis. We spend a lot of time with you and the item before your purchase to try to avoid any surprises after your purchase. AmEx credit cards: Note that if your order was paid using an AmEx card we may pass on a 3.5% fee of the purchase price to process your refund. You should expect to receive your refund within four weeks of giving your package to the return shipper, however, we strive to issue your refund sooner. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days). Send your return to: Chicago Music Exchange 3316 N Lincoln Ave Chicago, IL 60657 The following items are returnable only if defective OR unopened or unused: strings, harmonicas, microphones, cleaners, polishes, and polishing cloths. Software/soundware, cassettes, CDs, DVDs, and videos may be returned for credit only if they are in their original, sealed packaging. If defective, these items will only be exchanged for the same product. For complete details on our guarantees, shipping, and return policies, please contact our Customer Service Department at 773-525-7773; fax us at 773-525-2775; visit our website at, or write us at Chicago Music Exchange, 3316 N. Lincoln Ave, Chicago, IL 60657.